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window.cpp
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1 /* $Id: window.cpp 27147 2015-02-13 21:25:48Z frosch $ */
2
3 /*
4 * This file is part of OpenTTD.
5 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
6 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
8 */
9
12 #include "stdafx.h"
13 #include <stdarg.h>
14 #include "company_func.h"
15 #include "gfx_func.h"
16 #include "console_func.h"
17 #include "console_gui.h"
18 #include "viewport_func.h"
19 #include "progress.h"
20 #include "blitter/factory.hpp"
21 #include "zoom_func.h"
22 #include "vehicle_base.h"
23 #include "window_func.h"
24 #include "tilehighlight_func.h"
25 #include "network/network.h"
26 #include "querystring_gui.h"
27 #include "widgets/dropdown_func.h"
28 #include "strings_func.h"
29 #include "settings_type.h"
30 #include "settings_func.h"
31 #include "ini_type.h"
32 #include "newgrf_debug.h"
33 #include "hotkeys.h"
34 #include "toolbar_gui.h"
35 #include "statusbar_gui.h"
36 #include "error.h"
37 #include "game/game.hpp"
38 #include "video/video_driver.hpp"
39
40 #include "safeguards.h"
41
43 enum ViewportAutoscrolling {
44 VA_DISABLED,
45 VA_MAIN_VIEWPORT_FULLSCREEN,
46 VA_MAIN_VIEWPORT,
47 VA_EVERY_VIEWPORT,
48 };
49
50 static Point _drag_delta;
51 static Window *_mouseover_last_w = NULL;
52 static Window *_last_scroll_window = NULL;
53
55 Window *_z_front_window = NULL;
57 Window *_z_back_window = NULL;
58
60 bool _window_highlight_colour = false;
61
62 /*
63 * Window that currently has focus. - The main purpose is to generate
64 * #FocusLost events, not to give next window in z-order focus when a
65 * window is closed.
66 */
67 Window *_focused_window;
68
69 Point _cursorpos_drag_start;
70
71 int _scrollbar_start_pos;
72 int _scrollbar_size;
73 byte _scroller_click_timeout = 0;
74
75 bool _scrolling_viewport;
76 bool _mouse_hovering;
77
78 SpecialMouseMode _special_mouse_mode;
79
84 static SmallVector<WindowDesc*, 16> *_window_descs = NULL;
85
87 char *_windows_file;
88
90 WindowDesc::WindowDesc(WindowPosition def_pos, const char *ini_key, int16 def_width_trad, int16 def_height_trad,
91 WindowClass window_class, WindowClass parent_class, uint32 flags,
92 const NWidgetPart *nwid_parts, int16 nwid_length, HotkeyList *hotkeys) :
93 default_pos(def_pos),
94 cls(window_class),
95 parent_cls(parent_class),
96 ini_key(ini_key),
97 flags(flags),
98 nwid_parts(nwid_parts),
99 nwid_length(nwid_length),
100 hotkeys(hotkeys),
101 pref_sticky(false),
102 pref_width(0),
103 pref_height(0),
104 default_width_trad(def_width_trad),
105 default_height_trad(def_height_trad)
106 {
107 if (_window_descs == NULL) _window_descs = new SmallVector<WindowDesc*, 16>();
108 *_window_descs->Append() = this;
109 }
110
111 WindowDesc::~WindowDesc()
112 {
113 _window_descs->Erase(_window_descs->Find(this));
114 }
115
121 int16 WindowDesc::GetDefaultWidth() const
122 {
123 return this->pref_width != 0 ? this->pref_width : ScaleGUITrad(this->default_width_trad);
124 }
125
131 int16 WindowDesc::GetDefaultHeight() const
132 {
133 return this->pref_height != 0 ? this->pref_height : ScaleGUITrad(this->default_height_trad);
134 }
135
139 void WindowDesc::LoadFromConfig()
140 {
141 IniFile *ini = new IniFile();
142 ini->LoadFromDisk(_windows_file, BASE_DIR);
143 for (WindowDesc **it = _window_descs->Begin(); it != _window_descs->End(); ++it) {
144 if ((*it)->ini_key == NULL) continue;
145 IniLoadWindowSettings(ini, (*it)->ini_key, *it);
146 }
147 delete ini;
148 }
149
153 static int CDECL DescSorter(WindowDesc * const *a, WindowDesc * const *b)
154 {
155 if ((*a)->ini_key != NULL && (*b)->ini_key != NULL) return strcmp((*a)->ini_key, (*b)->ini_key);
156 return ((*b)->ini_key != NULL ? 1 : 0) - ((*a)->ini_key != NULL ? 1 : 0);
157 }
158
162 void WindowDesc::SaveToConfig()
163 {
164 /* Sort the stuff to get a nice ini file on first write */
165 QSortT(_window_descs->Begin(), _window_descs->Length(), DescSorter);
166
167 IniFile *ini = new IniFile();
168 ini->LoadFromDisk(_windows_file, BASE_DIR);
169 for (WindowDesc **it = _window_descs->Begin(); it != _window_descs->End(); ++it) {
170 if ((*it)->ini_key == NULL) continue;
171 IniSaveWindowSettings(ini, (*it)->ini_key, *it);
172 }
173 ini->SaveToDisk(_windows_file);
174 delete ini;
175 }
176
180 void Window::ApplyDefaults()
181 {
182 if (this->nested_root != NULL && this->nested_root->GetWidgetOfType(WWT_STICKYBOX) != NULL) {
183 if (this->window_desc->pref_sticky) this->flags |= WF_STICKY;
184 } else {
185 /* There is no stickybox; clear the preference in case someone tried to be funny */
186 this->window_desc->pref_sticky = false;
187 }
188 }
189
199 int Window::GetRowFromWidget(int clickpos, int widget, int padding, int line_height) const
200 {
201 const NWidgetBase *wid = this->GetWidget<NWidgetBase>(widget);
202 if (line_height < 0) line_height = wid->resize_y;
203 if (clickpos < (int)wid->pos_y + padding) return INT_MAX;
204 return (clickpos - (int)wid->pos_y - padding) / line_height;
205 }
206
210 void Window::DisableAllWidgetHighlight()
211 {
212 for (uint i = 0; i < this->nested_array_size; i++) {
213 NWidgetBase *nwid = this->GetWidget<NWidgetBase>(i);
214 if (nwid == NULL) continue;
215
216 if (nwid->IsHighlighted()) {
217 nwid->SetHighlighted(TC_INVALID);
218 this->SetWidgetDirty(i);
219 }
220 }
221
222 CLRBITS(this->flags, WF_HIGHLIGHTED);
223 }
224
230 void Window::SetWidgetHighlight(byte widget_index, TextColour highlighted_colour)
231 {
232 assert(widget_index < this->nested_array_size);
233
234 NWidgetBase *nwid = this->GetWidget<NWidgetBase>(widget_index);
235 if (nwid == NULL) return;
236
237 nwid->SetHighlighted(highlighted_colour);
238 this->SetWidgetDirty(widget_index);
239
240 if (highlighted_colour != TC_INVALID) {
241 /* If we set a highlight, the window has a highlight */
242 this->flags |= WF_HIGHLIGHTED;
243 } else {
244 /* If we disable a highlight, check all widgets if anyone still has a highlight */
245 bool valid = false;
246 for (uint i = 0; i < this->nested_array_size; i++) {
247 NWidgetBase *nwid = this->GetWidget<NWidgetBase>(i);
248 if (nwid == NULL) continue;
249 if (!nwid->IsHighlighted()) continue;
250
251 valid = true;
252 }
253 /* If nobody has a highlight, disable the flag on the window */
254 if (!valid) CLRBITS(this->flags, WF_HIGHLIGHTED);
255 }
256 }
257
263 bool Window::IsWidgetHighlighted(byte widget_index) const
264 {
265 assert(widget_index < this->nested_array_size);
266
267 const NWidgetBase *nwid = this->GetWidget<NWidgetBase>(widget_index);
268 if (nwid == NULL) return false;
269
270 return nwid->IsHighlighted();
271 }
272
280 void Window::OnDropdownClose(Point pt, int widget, int index, bool instant_close)
281 {
282 if (widget < 0) return;
283
284 if (instant_close) {
285 /* Send event for selected option if we're still
286 * on the parent button of the dropdown (behaviour of the dropdowns in the main toolbar). */
287 if (GetWidgetFromPos(this, pt.x, pt.y) == widget) {
288 this->OnDropdownSelect(widget, index);
289 }
290 }
291
292 /* Raise the dropdown button */
293 NWidgetCore *nwi2 = this->GetWidget<NWidgetCore>(widget);
294 if ((nwi2->type & WWT_MASK) == NWID_BUTTON_DROPDOWN) {
295 nwi2->disp_flags &= ~ND_DROPDOWN_ACTIVE;
296 } else {
297 this->RaiseWidget(widget);
298 }
299 this->SetWidgetDirty(widget);
300 }
301
307 const Scrollbar *Window::GetScrollbar(uint widnum) const
308 {
309 return this->GetWidget<NWidgetScrollbar>(widnum);
310 }
311
317 Scrollbar *Window::GetScrollbar(uint widnum)
318 {
319 return this->GetWidget<NWidgetScrollbar>(widnum);
320 }
321
327 const QueryString *Window::GetQueryString(uint widnum) const
328 {
329 const SmallMap<int, QueryString*>::Pair *query = this->querystrings.Find(widnum);
330 return query != this->querystrings.End() ? query->second : NULL;
331 }
332
338 QueryString *Window::GetQueryString(uint widnum)
339 {
340 SmallMap<int, QueryString*>::Pair *query = this->querystrings.Find(widnum);
341 return query != this->querystrings.End() ? query->second : NULL;
342 }
343
348 /* virtual */ const char *Window::GetFocusedText() const
349 {
350 if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
351 return this->GetQueryString(this->nested_focus->index)->GetText();
352 }
353
354 return NULL;
355 }
356
361 /* virtual */ const char *Window::GetCaret() const
362 {
363 if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
364 return this->GetQueryString(this->nested_focus->index)->GetCaret();
365 }
366
367 return NULL;
368 }
369
375 /* virtual */ const char *Window::GetMarkedText(size_t *length) const
376 {
377 if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
378 return this->GetQueryString(this->nested_focus->index)->GetMarkedText(length);
379 }
380
381 return NULL;
382 }
383
388 /* virtual */ Point Window::GetCaretPosition() const
389 {
390 if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
391 return this->GetQueryString(this->nested_focus->index)->GetCaretPosition(this, this->nested_focus->index);
392 }
393
394 Point pt = {0, 0};
395 return pt;
396 }
397
404 /* virtual */ Rect Window::GetTextBoundingRect(const char *from, const char *to) const
405 {
406 if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
407 return this->GetQueryString(this->nested_focus->index)->GetBoundingRect(this, this->nested_focus->index, from, to);
408 }
409
410 Rect r = {0, 0, 0, 0};
411 return r;
412 }
413
419 /* virtual */ const char *Window::GetTextCharacterAtPosition(const Point &pt) const
420 {
421 if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
422 return this->GetQueryString(this->nested_focus->index)->GetCharAtPosition(this, this->nested_focus->index, pt);
423 }
424
425 return NULL;
426 }
427
432 void SetFocusedWindow(Window *w)
433 {
434 if (_focused_window == w) return;
435
436 /* Invalidate focused widget */
437 if (_focused_window != NULL) {
438 if (_focused_window->nested_focus != NULL) _focused_window->nested_focus->SetDirty(_focused_window);
439 }
440
441 /* Remember which window was previously focused */
442 Window *old_focused = _focused_window;
443 _focused_window = w;
444
445 /* So we can inform it that it lost focus */
446 if (old_focused != NULL) old_focused->OnFocusLost();
447 if (_focused_window != NULL) _focused_window->OnFocus();
448 }
449
455 bool EditBoxInGlobalFocus()
456 {
457 if (_focused_window == NULL) return false;
458
459 /* The console does not have an edit box so a special case is needed. */
460 if (_focused_window->window_class == WC_CONSOLE) return true;
461
462 return _focused_window->nested_focus != NULL && _focused_window->nested_focus->type == WWT_EDITBOX;
463 }
464
468 void Window::UnfocusFocusedWidget()
469 {
470 if (this->nested_focus != NULL) {
471 if (this->nested_focus->type == WWT_EDITBOX) VideoDriver::GetInstance()->EditBoxLostFocus();
472
473 /* Repaint the widget that lost focus. A focused edit box may else leave the caret on the screen. */
474 this->nested_focus->SetDirty(this);
475 this->nested_focus = NULL;
476 }
477 }
478
484 bool Window::SetFocusedWidget(int widget_index)
485 {
486 /* Do nothing if widget_index is already focused, or if it wasn't a valid widget. */
487 if ((uint)widget_index >= this->nested_array_size) return false;
488
489 assert(this->nested_array[widget_index] != NULL); // Setting focus to a non-existing widget is a bad idea.
490 if (this->nested_focus != NULL) {
491 if (this->GetWidget<NWidgetCore>(widget_index) == this->nested_focus) return false;
492
493 /* Repaint the widget that lost focus. A focused edit box may else leave the caret on the screen. */
494 this->nested_focus->SetDirty(this);
495 if (this->nested_focus->type == WWT_EDITBOX) VideoDriver::GetInstance()->EditBoxLostFocus();
496 }
497 this->nested_focus = this->GetWidget<NWidgetCore>(widget_index);
498 return true;
499 }
500
504 void Window::OnFocusLost()
505 {
506 if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) VideoDriver::GetInstance()->EditBoxLostFocus();
507 }
508
516 void CDECL Window::SetWidgetsDisabledState(bool disab_stat, int widgets, ...)
517 {
518 va_list wdg_list;
519
520 va_start(wdg_list, widgets);
521
522 while (widgets != WIDGET_LIST_END) {
523 SetWidgetDisabledState(widgets, disab_stat);
524 widgets = va_arg(wdg_list, int);
525 }
526
527 va_end(wdg_list);
528 }
529
535 void CDECL Window::SetWidgetsLoweredState(bool lowered_stat, int widgets, ...)
536 {
537 va_list wdg_list;
538
539 va_start(wdg_list, widgets);
540
541 while (widgets != WIDGET_LIST_END) {
542 SetWidgetLoweredState(widgets, lowered_stat);
543 widgets = va_arg(wdg_list, int);
544 }
545
546 va_end(wdg_list);
547 }
548
553 void Window::RaiseButtons(bool autoraise)
554 {
555 for (uint i = 0; i < this->nested_array_size; i++) {
556 if (this->nested_array[i] == NULL) continue;
557 WidgetType type = this->nested_array[i]->type;
558 if (((type & ~WWB_PUSHBUTTON) < WWT_LAST || type == NWID_PUSHBUTTON_DROPDOWN) &&
559 (!autoraise || (type & WWB_PUSHBUTTON) || type == WWT_EDITBOX) && this->IsWidgetLowered(i)) {
560 this->RaiseWidget(i);
561 this->SetWidgetDirty(i);
562 }
563 }
564
565 /* Special widgets without widget index */
566 NWidgetCore *wid = this->nested_root != NULL ? (NWidgetCore*)this->nested_root->GetWidgetOfType(WWT_DEFSIZEBOX) : NULL;
567 if (wid != NULL) {
568 wid->SetLowered(false);
569 wid->SetDirty(this);
570 }
571 }
572
577 void Window::SetWidgetDirty(byte widget_index) const
578 {
579 /* Sometimes this function is called before the window is even fully initialized */
580 if (this->nested_array == NULL) return;
581
582 this->nested_array[widget_index]->SetDirty(this);
583 }
584
590 EventState Window::OnHotkey(int hotkey)
591 {
592 if (hotkey < 0) return ES_NOT_HANDLED;
593
594 NWidgetCore *nw = this->GetWidget<NWidgetCore>(hotkey);
595 if (nw == NULL || nw->IsDisabled()) return ES_NOT_HANDLED;
596
597 if (nw->type == WWT_EDITBOX) {
598 if (this->IsShaded()) return ES_NOT_HANDLED;
599
600 /* Focus editbox */
601 this->SetFocusedWidget(hotkey);
602 SetFocusedWindow(this);
603 } else {
604 /* Click button */
605 this->OnClick(Point(), hotkey, 1);
606 }
607 return ES_HANDLED;
608 }
609
615 void Window::HandleButtonClick(byte widget)
616 {
617 this->LowerWidget(widget);
618 this->SetTimeout();
619 this->SetWidgetDirty(widget);
620 }
621
622 static void StartWindowDrag(Window *w);
623 static void StartWindowSizing(Window *w, bool to_left);
624
632 static void DispatchLeftClickEvent(Window *w, int x, int y, int click_count)
633 {
634 NWidgetCore *nw = w->nested_root->GetWidgetFromPos(x, y);
635 WidgetType widget_type = (nw != NULL) ? nw->type : WWT_EMPTY;
636
637 bool focused_widget_changed = false;
638 /* If clicked on a window that previously did dot have focus */
639 if (_focused_window != w && // We already have focus, right?
640 (w->window_desc->flags & WDF_NO_FOCUS) == 0 && // Don't lose focus to toolbars
641 widget_type != WWT_CLOSEBOX) { // Don't change focused window if 'X' (close button) was clicked
642 focused_widget_changed = true;
643 SetFocusedWindow(w);
644 }
645
646 if (nw == NULL) return; // exit if clicked outside of widgets
647
648 /* don't allow any interaction if the button has been disabled */
649 if (nw->IsDisabled()) return;
650
651 int widget_index = nw->index;
652
653 /* Clicked on a widget that is not disabled.
654 * So unless the clicked widget is the caption bar, change focus to this widget.
655 * Exception: In the OSK we always want the editbox to stay focussed. */
656 if (widget_type != WWT_CAPTION && w->window_class != WC_OSK) {
657 /* focused_widget_changed is 'now' only true if the window this widget
658 * is in gained focus. In that case it must remain true, also if the
659 * local widget focus did not change. As such it's the logical-or of
660 * both changed states.
661 *
662 * If this is not preserved, then the OSK window would be opened when
663 * a user has the edit box focused and then click on another window and
664 * then back again on the edit box (to type some text).
665 */
666 focused_widget_changed |= w->SetFocusedWidget(widget_index);
667 }
668
669 /* Close any child drop down menus. If the button pressed was the drop down
670 * list's own button, then we should not process the click any further. */
671 if (HideDropDownMenu(w) == widget_index && widget_index >= 0) return;
672
673 if ((widget_type & ~WWB_PUSHBUTTON) < WWT_LAST && (widget_type & WWB_PUSHBUTTON)) w->HandleButtonClick(widget_index);
674
675 Point pt = { x, y };
676
677 switch (widget_type) {
678 case NWID_VSCROLLBAR:
679 case NWID_HSCROLLBAR:
680 ScrollbarClickHandler(w, nw, x, y);
681 break;
682
683 case WWT_EDITBOX: {
684 QueryString *query = w->GetQueryString(widget_index);
685 if (query != NULL) query->ClickEditBox(w, pt, widget_index, click_count, focused_widget_changed);
686 break;
687 }
688
689 case WWT_CLOSEBOX: // 'X'
690 delete w;
691 return;
692
693 case WWT_CAPTION: // 'Title bar'
694 StartWindowDrag(w);
695 return;
696
697 case WWT_RESIZEBOX:
698 /* When the resize widget is on the left size of the window
699 * we assume that that button is used to resize to the left. */
700 StartWindowSizing(w, (int)nw->pos_x < (w->width / 2));
701 nw->SetDirty(w);
702 return;
703
704 case WWT_DEFSIZEBOX: {
705 if (_ctrl_pressed) {
706 w->window_desc->pref_width = w->width;
707 w->window_desc->pref_height = w->height;
708 } else {
709 int16 def_width = max<int16>(min(w->window_desc->GetDefaultWidth(), _screen.width), w->nested_root->smallest_x);
710 int16 def_height = max<int16>(min(w->window_desc->GetDefaultHeight(), _screen.height - 50), w->nested_root->smallest_y);
711
712 int dx = (w->resize.step_width == 0) ? 0 : def_width - w->width;
713 int dy = (w->resize.step_height == 0) ? 0 : def_height - w->height;
714 /* dx and dy has to go by step.. calculate it.
715 * The cast to int is necessary else dx/dy are implicitly casted to unsigned int, which won't work. */
716 if (w->resize.step_width > 1) dx -= dx % (int)w->resize.step_width;
717 if (w->resize.step_height > 1) dy -= dy % (int)w->resize.step_height;
718 ResizeWindow(w, dx, dy, false);
719 }
720
721 nw->SetLowered(true);
722 nw->SetDirty(w);
723 w->SetTimeout();
724 break;
725 }
726
727 case WWT_DEBUGBOX:
728 w->ShowNewGRFInspectWindow();
729 break;
730
731 case WWT_SHADEBOX:
732 nw->SetDirty(w);
733 w->SetShaded(!w->IsShaded());
734 return;
735
736 case WWT_STICKYBOX:
737 w->flags ^= WF_STICKY;
738 nw->SetDirty(w);
739 if (_ctrl_pressed) w->window_desc->pref_sticky = (w->flags & WF_STICKY) != 0;
740 return;
741
742 default:
743 break;
744 }
745
746 /* Widget has no index, so the window is not interested in it. */
747 if (widget_index < 0) return;
748
749 /* Check if the widget is highlighted; if so, disable highlight and dispatch an event to the GameScript */
750 if (w->IsWidgetHighlighted(widget_index)) {
751 w->SetWidgetHighlight(widget_index, TC_INVALID);
752 Game::NewEvent(new ScriptEventWindowWidgetClick((ScriptWindow::WindowClass)w->window_class, w->window_number, widget_index));
753 }
754
755 w->OnClick(pt, widget_index, click_count);
756 }
757
764 static void DispatchRightClickEvent(Window *w, int x, int y)
765 {
766 NWidgetCore *wid = w->nested_root->GetWidgetFromPos(x, y);
767 if (wid == NULL) return;
768
769 /* No widget to handle, or the window is not interested in it. */
770 if (wid->index >= 0) {
771 Point pt = { x, y };
772 if (w->OnRightClick(pt, wid->index)) return;
773 }
774
775 if (_settings_client.gui.hover_delay_ms == 0 && wid->tool_tip != 0) GuiShowTooltips(w, wid->tool_tip, 0, NULL, TCC_RIGHT_CLICK);
776 }
777
784 static void DispatchHoverEvent(Window *w, int x, int y)
785 {
786 NWidgetCore *wid = w->nested_root->GetWidgetFromPos(x, y);
787
788 /* No widget to handle */
789 if (wid == NULL) return;
790
791 /* Show the tooltip if there is any */
792 if (wid->tool_tip != 0) {
793 GuiShowTooltips(w, wid->tool_tip);
794 return;
795 }
796
797 /* Widget has no index, so the window is not interested in it. */
798 if (wid->index < 0) return;
799
800 Point pt = { x, y };
801 w->OnHover(pt, wid->index);
802 }
803
811 static void DispatchMouseWheelEvent(Window *w, NWidgetCore *nwid, int wheel)
812 {
813 if (nwid == NULL) return;
814
815 /* Using wheel on caption/shade-box shades or unshades the window. */
816 if (nwid->type == WWT_CAPTION || nwid->type == WWT_SHADEBOX) {
817 w->SetShaded(wheel < 0);
818 return;
819 }
820
821 /* Wheeling a vertical scrollbar. */
822 if (nwid->type == NWID_VSCROLLBAR) {
823 NWidgetScrollbar *sb = static_cast<NWidgetScrollbar *>(nwid);
824 if (sb->GetCount() > sb->GetCapacity()) {
825 sb->UpdatePosition(wheel);
826 w->SetDirty();
827 }
828 return;
829 }
830
831 /* Scroll the widget attached to the scrollbar. */
832 Scrollbar *sb = (nwid->scrollbar_index >= 0 ? w->GetScrollbar(nwid->scrollbar_index) : NULL);
833 if (sb != NULL && sb->GetCount() > sb->GetCapacity()) {
834 sb->UpdatePosition(wheel);
835 w->SetDirty();
836 }
837 }
838
844 static bool MayBeShown(const Window *w)
845 {
846 /* If we're not modal, everything is okay. */
847 if (!HasModalProgress()) return true;
848
849 switch (w->window_class) {
850 case WC_MAIN_WINDOW:
851 case WC_MODAL_PROGRESS:
852 case WC_CONFIRM_POPUP_QUERY:
853 return true;
854
855 default:
856 return false;
857 }
858 }
859
872 static void DrawOverlappedWindow(Window *w, int left, int top, int right, int bottom)
873 {
874 const Window *v;
875 FOR_ALL_WINDOWS_FROM_BACK_FROM(v, w->z_front) {
876 if (MayBeShown(v) &&
877 right > v->left &&
878 bottom > v->top &&
879 left < v->left + v->width &&
880 top < v->top + v->height) {
881 /* v and rectangle intersect with each other */
882 int x;
883
884 if (left < (x = v->left)) {
885 DrawOverlappedWindow(w, left, top, x, bottom);
886 DrawOverlappedWindow(w, x, top, right, bottom);
887 return;
888 }
889
890 if (right > (x = v->left + v->width)) {
891 DrawOverlappedWindow(w, left, top, x, bottom);
892 DrawOverlappedWindow(w, x, top, right, bottom);
893 return;
894 }
895
896 if (top < (x = v->top)) {
897 DrawOverlappedWindow(w, left, top, right, x);
898 DrawOverlappedWindow(w, left, x, right, bottom);
899 return;
900 }
901
902 if (bottom > (x = v->top + v->height)) {
903 DrawOverlappedWindow(w, left, top, right, x);
904 DrawOverlappedWindow(w, left, x, right, bottom);
905 return;
906 }
907
908 return;
909 }
910 }
911
912 /* Setup blitter, and dispatch a repaint event to window *wz */
913 DrawPixelInfo *dp = _cur_dpi;
914 dp->width = right - left;
915 dp->height = bottom - top;
916 dp->left = left - w->left;
917 dp->top = top - w->top;
918 dp->pitch = _screen.pitch;
919 dp->dst_ptr = BlitterFactory::GetCurrentBlitter()->MoveTo(_screen.dst_ptr, left, top);
920 dp->zoom = ZOOM_LVL_NORMAL;
921 w->OnPaint();
922 }
923
932 void DrawOverlappedWindowForAll(int left, int top, int right, int bottom)
933 {
934 Window *w;
935 DrawPixelInfo bk;
936 _cur_dpi = &bk;
937
938 FOR_ALL_WINDOWS_FROM_BACK(w) {
939 if (MayBeShown(w) &&
940 right > w->left &&
941 bottom > w->top &&
942 left < w->left + w->width &&
943 top < w->top + w->height) {
944 /* Window w intersects with the rectangle => needs repaint */
945 DrawOverlappedWindow(w, left, top, right, bottom);
946 }
947 }
948 }
949
954 void Window::SetDirty() const
955 {
956 SetDirtyBlocks(this->left, this->top, this->left + this->width, this->top + this->height);
957 }
958
965 void Window::ReInit(int rx, int ry)
966 {
967 this->SetDirty(); // Mark whole current window as dirty.
968
969 /* Save current size. */
970 int window_width = this->width;
971 int window_height = this->height;
972
973 this->OnInit();
974 /* Re-initialize the window from the ground up. No need to change the nested_array, as all widgets stay where they are. */
975 this->nested_root->SetupSmallestSize(this, false);
976 this->nested_root->AssignSizePosition(ST_SMALLEST, 0, 0, this->nested_root->smallest_x, this->nested_root->smallest_y, _current_text_dir == TD_RTL);
977 this->width = this->nested_root->smallest_x;
978 this->height = this->nested_root->smallest_y;
979 this->resize.step_width = this->nested_root->resize_x;
980 this->resize.step_height = this->nested_root->resize_y;
981
982 /* Resize as close to the original size + requested resize as possible. */
983 window_width = max(window_width + rx, this->width);
984 window_height = max(window_height + ry, this->height);
985 int dx = (this->resize.step_width == 0) ? 0 : window_width - this->width;
986 int dy = (this->resize.step_height == 0) ? 0 : window_height - this->height;
987 /* dx and dy has to go by step.. calculate it.
988 * The cast to int is necessary else dx/dy are implicitly casted to unsigned int, which won't work. */
989 if (this->resize.step_width > 1) dx -= dx % (int)this->resize.step_width;
990 if (this->resize.step_height > 1) dy -= dy % (int)this->resize.step_height;
991
992 ResizeWindow(this, dx, dy);
993 /* ResizeWindow() does this->SetDirty() already, no need to do it again here. */
994 }
995
1001 void Window::SetShaded(bool make_shaded)
1002 {
1003 if (this->shade_select == NULL) return;
1004
1005 int desired = make_shaded ? SZSP_HORIZONTAL : 0;
1006 if (this->shade_select->shown_plane != desired) {
1007 if (make_shaded) {
1008 if (this->nested_focus != NULL) this->UnfocusFocusedWidget();
1009 this->unshaded_size.width = this->width;
1010 this->unshaded_size.height = this->height;
1011 this->shade_select->SetDisplayedPlane(desired);
1012 this->ReInit(0, -this->height);
1013 } else {
1014 this->shade_select->SetDisplayedPlane(desired);
1015 int dx = ((int)this->unshaded_size.width > this->width) ? (int)this->unshaded_size.width - this->width : 0;
1016 int dy = ((int)this->unshaded_size.height > this->height) ? (int)this->unshaded_size.height - this->height : 0;
1017 this->ReInit(dx, dy);
1018 }
1019 }
1020 }
1021
1028 static Window *FindChildWindow(const Window *w, WindowClass wc)
1029 {
1030 Window *v;
1031 FOR_ALL_WINDOWS_FROM_BACK(v) {
1032 if ((wc == WC_INVALID || wc == v->window_class) && v->parent == w) return v;
1033 }
1034
1035 return NULL;
1036 }
1037
1042 void Window::DeleteChildWindows(WindowClass wc) const
1043 {
1044 Window *child = FindChildWindow(this, wc);
1045 while (child != NULL) {
1046 delete child;
1047 child = FindChildWindow(this, wc);
1048 }
1049 }
1050
1054 Window::~Window()
1055 {
1056 if (_thd.window_class == this->window_class &&
1057 _thd.window_number == this->window_number) {
1058 ResetObjectToPlace();
1059 }
1060
1061 /* Prevent Mouseover() from resetting mouse-over coordinates on a non-existing window */
1062 if (_mouseover_last_w == this) _mouseover_last_w = NULL;
1063
1064 /* We can't scroll the window when it's closed. */
1065 if (_last_scroll_window == this) _last_scroll_window = NULL;
1066
1067 /* Make sure we don't try to access this window as the focused window when it doesn't exist anymore. */
1068 if (_focused_window == this) {
1069 this->OnFocusLost();
1070 _focused_window = NULL;
1071 }
1072
1073 this->DeleteChildWindows();
1074
1075 if (this->viewport != NULL) DeleteWindowViewport(this);
1076
1077 this->SetDirty();
1078
1079 free(this->nested_array); // Contents is released through deletion of #nested_root.
1080 delete this->nested_root;
1081
1082 this->window_class = WC_INVALID;
1083 }
1084
1091 Window *FindWindowById(WindowClass cls, WindowNumber number)
1092 {
1093 Window *w;
1094 FOR_ALL_WINDOWS_FROM_BACK(w) {
1095 if (w->window_class == cls && w->window_number == number) return w;
1096 }
1097
1098 return NULL;
1099 }
1100
1107 Window *FindWindowByClass(WindowClass cls)
1108 {
1109 Window *w;
1110 FOR_ALL_WINDOWS_FROM_BACK(w) {
1111 if (w->window_class == cls) return w;
1112 }
1113
1114 return NULL;
1115 }
1116
1123 void DeleteWindowById(WindowClass cls, WindowNumber number, bool force)
1124 {
1125 Window *w = FindWindowById(cls, number);
1126 if (force || w == NULL ||
1127 (w->flags & WF_STICKY) == 0) {
1128 delete w;
1129 }
1130 }
1131
1136 void DeleteWindowByClass(WindowClass cls)
1137 {
1138 Window *w;
1139
1140 restart_search:
1141 /* When we find the window to delete, we need to restart the search
1142 * as deleting this window could cascade in deleting (many) others
1143 * anywhere in the z-array */
1144 FOR_ALL_WINDOWS_FROM_BACK(w) {
1145 if (w->window_class == cls) {
1146 delete w;
1147 goto restart_search;
1148 }
1149 }
1150 }
1151
1158 void DeleteCompanyWindows(CompanyID id)
1159 {
1160 Window *w;
1161
1162 restart_search:
1163 /* When we find the window to delete, we need to restart the search
1164 * as deleting this window could cascade in deleting (many) others
1165 * anywhere in the z-array */
1166 FOR_ALL_WINDOWS_FROM_BACK(w) {
1167 if (w->owner == id) {
1168 delete w;
1169 goto restart_search;
1170 }
1171 }
1172
1173 /* Also delete the company specific windows that don't have a company-colour. */
1174 DeleteWindowById(WC_BUY_COMPANY, id);
1175 }
1176
1184 void ChangeWindowOwner(Owner old_owner, Owner new_owner)
1185 {
1186 Window *w;
1187 FOR_ALL_WINDOWS_FROM_BACK(w) {
1188 if (w->owner != old_owner) continue;
1189
1190 switch (w->window_class) {
1191 case WC_COMPANY_COLOUR:
1192 case WC_FINANCES:
1193 case WC_STATION_LIST:
1194 case WC_TRAINS_LIST:
1195 case WC_ROADVEH_LIST:
1196 case WC_SHIPS_LIST:
1197 case WC_AIRCRAFT_LIST:
1198 case WC_BUY_COMPANY:
1199 case WC_COMPANY:
1200 case WC_COMPANY_INFRASTRUCTURE:
1201 continue;
1202
1203 default:
1204 w->owner = new_owner;
1205 break;
1206 }
1207 }
1208 }
1209
1210 static void BringWindowToFront(Window *w);
1211
1219 Window *BringWindowToFrontById(WindowClass cls, WindowNumber number)
1220 {
1221 Window *w = FindWindowById(cls, number);
1222
1223 if (w != NULL) {
1224 if (w->IsShaded()) w->SetShaded(false); // Restore original window size if it was shaded.
1225
1226 w->SetWhiteBorder();
1227 BringWindowToFront(w);
1228 w->SetDirty();
1229 }
1230
1231 return w;
1232 }
1233
1234 static inline bool IsVitalWindow(const Window *w)
1235 {
1236 switch (w->window_class) {
1237 case WC_MAIN_TOOLBAR:
1238 case WC_STATUS_BAR:
1239 case WC_NEWS_WINDOW:
1240 case WC_SEND_NETWORK_MSG:
1241 return true;
1242
1243 default:
1244 return false;
1245 }
1246 }
1247
1256 static uint GetWindowZPriority(const Window *w)
1257 {
1258 assert(w->window_class != WC_INVALID);
1259
1260 uint z_priority = 0;
1261
1262 switch (w->window_class) {
1263 case WC_ENDSCREEN:
1264 ++z_priority;
1265
1266 case WC_HIGHSCORE:
1267 ++z_priority;
1268
1269 case WC_TOOLTIPS:
1270 ++z_priority;
1271
1272 case WC_DROPDOWN_MENU:
1273 ++z_priority;
1274
1275 case WC_MAIN_TOOLBAR:
1276 case WC_STATUS_BAR:
1277 ++z_priority;
1278
1279 case WC_OSK:
1280 ++z_priority;
1281
1282 case WC_QUERY_STRING:
1283 case WC_SEND_NETWORK_MSG:
1284 ++z_priority;
1285
1286 case WC_ERRMSG:
1287 case WC_CONFIRM_POPUP_QUERY:
1288 case WC_MODAL_PROGRESS:
1289 case WC_NETWORK_STATUS_WINDOW:
1290 case WC_SAVE_PRESET:
1291 ++z_priority;
1292
1293 case WC_GENERATE_LANDSCAPE:
1294 case WC_SAVELOAD:
1295 case WC_GAME_OPTIONS:
1296 case WC_CUSTOM_CURRENCY:
1297 case WC_NETWORK_WINDOW:
1298 case WC_GRF_PARAMETERS:
1299 case WC_AI_LIST:
1300 case WC_AI_SETTINGS:
1301 case WC_TEXTFILE:
1302 ++z_priority;
1303
1304 case WC_CONSOLE:
1305 ++z_priority;
1306
1307 case WC_NEWS_WINDOW:
1308 ++z_priority;
1309
1310 default:
1311 ++z_priority;
1312
1313 case WC_MAIN_WINDOW:
1314 return z_priority;
1315 }
1316 }
1317
1322 static void AddWindowToZOrdering(Window *w)
1323 {
1324 assert(w->z_front == NULL && w->z_back == NULL);
1325
1326 if (_z_front_window == NULL) {
1327 /* It's the only window. */
1328 _z_front_window = _z_back_window = w;
1329 w->z_front = w->z_back = NULL;
1330 } else {
1331 /* Search down the z-ordering for its location. */
1332 Window *v = _z_front_window;
1333 uint last_z_priority = UINT_MAX;
1334 while (v != NULL && (v->window_class == WC_INVALID || GetWindowZPriority(v) > GetWindowZPriority(w))) {
1335 if (v->window_class != WC_INVALID) {
1336 /* Sanity check z-ordering, while we're at it. */
1337 assert(last_z_priority >= GetWindowZPriority(v));
1338 last_z_priority = GetWindowZPriority(v);
1339 }
1340
1341 v = v->z_back;
1342 }
1343
1344 if (v == NULL) {
1345 /* It's the new back window. */
1346 w->z_front = _z_back_window;
1347 w->z_back = NULL;
1348 _z_back_window->z_back = w;
1349 _z_back_window = w;
1350 } else if (v == _z_front_window) {
1351 /* It's the new front window. */
1352 w->z_front = NULL;
1353 w->z_back = _z_front_window;
1354 _z_front_window->z_front = w;
1355 _z_front_window = w;
1356 } else {
1357 /* It's somewhere else in the z-ordering. */
1358 w->z_front = v->z_front;
1359 w->z_back = v;
1360 v->z_front->z_back = w;
1361 v->z_front = w;
1362 }
1363 }
1364 }
1365
1366
1371 static void RemoveWindowFromZOrdering(Window *w)
1372 {
1373 if (w->z_front == NULL) {
1374 assert(_z_front_window == w);
1375 _z_front_window = w->z_back;
1376 } else {
1377 w->z_front->z_back = w->z_back;
1378 }
1379
1380 if (w->z_back == NULL) {
1381 assert(_z_back_window == w);
1382 _z_back_window = w->z_front;
1383 } else {
1384 w->z_back->z_front = w->z_front;
1385 }
1386
1387 w->z_front = w->z_back = NULL;
1388 }
1389
1395 static void BringWindowToFront(Window *w)
1396 {
1397 RemoveWindowFromZOrdering(w);
1398 AddWindowToZOrdering(w);
1399
1400 w->SetDirty();
1401 }
1402
1411 void Window::InitializeData(WindowNumber window_number)
1412 {
1413 /* Set up window properties; some of them are needed to set up smallest size below */
1414 this->window_class = this->window_desc->cls;
1415 this->SetWhiteBorder();
1416 if (this->window_desc->default_pos == WDP_CENTER) this->flags |= WF_CENTERED;
1417 this->owner = INVALID_OWNER;
1418 this->nested_focus = NULL;
1419 this->window_number = window_number;
1420
1421 this->OnInit();
1422 /* Initialize nested widget tree. */
1423 if (this->nested_array == NULL) {
1424 this->nested_array = CallocT<NWidgetBase *>(this->nested_array_size);
1425 this->nested_root->SetupSmallestSize(this, true);
1426 } else {
1427 this->nested_root->SetupSmallestSize(this, false);
1428 }
1429 /* Initialize to smallest size. */
1430 this->nested_root->AssignSizePosition(ST_SMALLEST, 0, 0, this->nested_root->smallest_x, this->nested_root->smallest_y, _current_text_dir == TD_RTL);
1431
1432 /* Further set up window properties,
1433 * this->left, this->top, this->width, this->height, this->resize.width, and this->resize.height are initialized later. */
1434 this->resize.step_width = this->nested_root->resize_x;
1435 this->resize.step_height = this->nested_root->resize_y;
1436
1437 /* Give focus to the opened window unless a text box
1438 * of focused window has focus (so we don't interrupt typing). But if the new
1439 * window has a text box, then take focus anyway. */
1440 if (!EditBoxInGlobalFocus() || this->nested_root->GetWidgetOfType(WWT_EDITBOX) != NULL) SetFocusedWindow(this);
1441
1442 /* Insert the window into the correct location in the z-ordering. */
1443 AddWindowToZOrdering(this);
1444 }
1445
1453 void Window::InitializePositionSize(int x, int y, int sm_width, int sm_height)
1454 {
1455 this->left = x;
1456 this->top = y;
1457 this->width = sm_width;
1458 this->height = sm_height;
1459 }
1460
1471 void Window::FindWindowPlacementAndResize(int def_width, int def_height)
1472 {
1473 def_width = max(def_width, this->width); // Don't allow default size to be smaller than smallest size
1474 def_height = max(def_height, this->height);
1475 /* Try to make windows smaller when our window is too small.
1476 * w->(width|height) is normally the same as min_(width|height),
1477 * but this way the GUIs can be made a little more dynamic;
1478 * one can use the same spec for multiple windows and those
1479 * can then determine the real minimum size of the window. */
1480 if (this->width != def_width || this->height != def_height) {
1481 /* Think about the overlapping toolbars when determining the minimum window size */
1482 int free_height = _screen.height;
1483 const Window *wt = FindWindowById(WC_STATUS_BAR, 0);
1484 if (wt != NULL) free_height -= wt->height;
1485 wt = FindWindowById(WC_MAIN_TOOLBAR, 0);
1486 if (wt != NULL) free_height -= wt->height;
1487
1488 int enlarge_x = max(min(def_width - this->width, _screen.width - this->width), 0);
1489 int enlarge_y = max(min(def_height - this->height, free_height - this->height), 0);
1490
1491 /* X and Y has to go by step.. calculate it.
1492 * The cast to int is necessary else x/y are implicitly casted to
1493 * unsigned int, which won't work. */
1494 if (this->resize.step_width > 1) enlarge_x -= enlarge_x % (int)this->resize.step_width;
1495 if (this->resize.step_height > 1) enlarge_y -= enlarge_y % (int)this->resize.step_height;
1496
1497 ResizeWindow(this, enlarge_x, enlarge_y);
1498 /* ResizeWindow() calls this->OnResize(). */
1499 } else {
1500 /* Always call OnResize; that way the scrollbars and matrices get initialized. */
1501 this->OnResize();
1502 }
1503
1504 int nx = this->left;
1505 int ny = this->top;
1506
1507 if (nx + this->width > _screen.width) nx -= (nx + this->width - _screen.width);
1508
1509 const Window *wt = FindWindowById(WC_MAIN_TOOLBAR, 0);
1510 ny = max(ny, (wt == NULL || this == wt || this->top == 0) ? 0 : wt->height);
1511 nx = max(nx, 0);
1512
1513 if (this->viewport != NULL) {
1514 this->viewport->left += nx - this->left;
1515 this->viewport->top += ny - this->top;
1516 }
1517 this->left = nx;
1518 this->top = ny;
1519
1520 this->SetDirty();
1521 }
1522
1534 static bool IsGoodAutoPlace1(int left, int top, int width, int height, Point &pos)
1535 {
1536 int right = width + left;
1537 int bottom = height + top;
1538
1539 const Window *main_toolbar = FindWindowByClass(WC_MAIN_TOOLBAR);
1540 if (left < 0 || (main_toolbar != NULL && top < main_toolbar->height) || right > _screen.width || bottom > _screen.height) return false;
1541
1542 /* Make sure it is not obscured by any window. */
1543 const Window *w;
1544 FOR_ALL_WINDOWS_FROM_BACK(w) {
1545 if (w->window_class == WC_MAIN_WINDOW) continue;
1546
1547 if (right > w->left &&
1548 w->left + w->width > left &&
1549 bottom > w->top &&
1550 w->top + w->height > top) {
1551 return false;
1552 }
1553 }
1554
1555 pos.x = left;
1556 pos.y = top;
1557 return true;
1558 }
1559
1571 static bool IsGoodAutoPlace2(int left, int top, int width, int height, Point &pos)
1572 {
1573 /* Left part of the rectangle may be at most 1/4 off-screen,
1574 * right part of the rectangle may be at most 1/2 off-screen
1575 */
1576 if (left < -(width >> 2) || left > _screen.width - (width >> 1)) return false;
1577 /* Bottom part of the rectangle may be at most 1/4 off-screen */
1578 if (top < 22 || top > _screen.height - (height >> 2)) return false;
1579
1580 /* Make sure it is not obscured by any window. */
1581 const Window *w;
1582 FOR_ALL_WINDOWS_FROM_BACK(w) {
1583 if (w->window_class == WC_MAIN_WINDOW) continue;
1584
1585 if (left + width > w->left &&
1586 w->left + w->width > left &&
1587 top + height > w->top &&
1588 w->top + w->height > top) {
1589 return false;
1590 }
1591 }
1592
1593 pos.x = left;
1594 pos.y = top;
1595 return true;
1596 }
1597
1604 static Point GetAutoPlacePosition(int width, int height)
1605 {
1606 Point pt;
1607
1608 /* First attempt, try top-left of the screen */
1609 const Window *main_toolbar = FindWindowByClass(WC_MAIN_TOOLBAR);
1610 if (IsGoodAutoPlace1(0, main_toolbar != NULL ? main_toolbar->height + 2 : 2, width, height, pt)) return pt;
1611
1612 /* Second attempt, try around all existing windows with a distance of 2 pixels.
1613 * The new window must be entirely on-screen, and not overlap with an existing window.
1614 * Eight starting points are tried, two at each corner.
1615 */
1616 const Window *w;
1617 FOR_ALL_WINDOWS_FROM_BACK(w) {
1618 if (w->window_class == WC_MAIN_WINDOW) continue;
1619
1620 if (IsGoodAutoPlace1(w->left + w->width + 2, w->top, width, height, pt)) return pt;
1621 if (IsGoodAutoPlace1(w->left - width - 2, w->top, width, height, pt)) return pt;
1622 if (IsGoodAutoPlace1(w->left, w->top + w->height + 2, width, height, pt)) return pt;
1623 if (IsGoodAutoPlace1(w->left, w->top - height - 2, width, height, pt)) return pt;
1624 if (IsGoodAutoPlace1(w->left + w->width + 2, w->top + w->height - height, width, height, pt)) return pt;
1625 if (IsGoodAutoPlace1(w->left - width - 2, w->top + w->height - height, width, height, pt)) return pt;
1626 if (IsGoodAutoPlace1(w->left + w->width - width, w->top + w->height + 2, width, height, pt)) return pt;
1627 if (IsGoodAutoPlace1(w->left + w->width - width, w->top - height - 2, width, height, pt)) return pt;
1628 }
1629
1630 /* Third attempt, try around all existing windows with a distance of 2 pixels.
1631 * The new window may be partly off-screen, and must not overlap with an existing window.
1632 * Only four starting points are tried.
1633 */
1634 FOR_ALL_WINDOWS_FROM_BACK(w) {
1635 if (w->window_class == WC_MAIN_WINDOW) continue;
1636
1637 if (IsGoodAutoPlace2(w->left + w->width + 2, w->top, width, height, pt)) return pt;
1638 if (IsGoodAutoPlace2(w->left - width - 2, w->top, width, height, pt)) return pt;
1639 if (IsGoodAutoPlace2(w->left, w->top + w->height + 2, width, height, pt)) return pt;
1640 if (IsGoodAutoPlace2(w->left, w->top - height - 2, width, height, pt)) return pt;
1641 }
1642
1643 /* Fourth and final attempt, put window at diagonal starting from (0, 24), try multiples
1644 * of (+5, +5)
1645 */
1646 int left = 0, top = 24;
1647
1648 restart:
1649 FOR_ALL_WINDOWS_FROM_BACK(w) {
1650 if (w->left == left && w->top == top) {
1651 left += 5;
1652 top += 5;
1653 goto restart;
1654 }
1655 }
1656
1657 pt.x = left;
1658 pt.y = top;
1659 return pt;
1660 }
1661
1668 Point GetToolbarAlignedWindowPosition(int window_width)
1669 {
1670 const Window *w = FindWindowById(WC_MAIN_TOOLBAR, 0);
1671 assert(w != NULL);
1672 Point pt = { _current_text_dir == TD_RTL ? w->left : (w->left + w->width) - window_width, w->top + w->height };
1673 return pt;
1674 }
1675
1693 static Point LocalGetWindowPlacement(const WindowDesc *desc, int16 sm_width, int16 sm_height, int window_number)
1694 {
1695 Point pt;
1696 const Window *w;
1697
1698 int16 default_width = max(desc->GetDefaultWidth(), sm_width);
1699 int16 default_height = max(desc->GetDefaultHeight(), sm_height);
1700
1701 if (desc->parent_cls != 0 /* WC_MAIN_WINDOW */ &&
1702 (w = FindWindowById(desc->parent_cls, window_number)) != NULL &&
1703 w->left < _screen.width - 20 && w->left > -60 && w->top < _screen.height - 20) {
1704
1705 pt.x = w->left + ((desc->parent_cls == WC_BUILD_TOOLBAR || desc->parent_cls == WC_SCEN_LAND_GEN) ? 0 : 10);
1706 if (pt.x > _screen.width + 10 - default_width) {
1707 pt.x = (_screen.width + 10 - default_width) - 20;
1708 }
1709 pt.y = w->top + ((desc->parent_cls == WC_BUILD_TOOLBAR || desc->parent_cls == WC_SCEN_LAND_GEN) ? w->height : 10);
1710 return pt;
1711 }
1712
1713 switch (desc->default_pos) {
1714 case WDP_ALIGN_TOOLBAR: // Align to the toolbar
1715 return GetToolbarAlignedWindowPosition(default_width);
1716
1717 case WDP_AUTO: // Find a good automatic position for the window
1718 return GetAutoPlacePosition(default_width, default_height);
1719
1720 case WDP_CENTER: // Centre the window horizontally
1721 pt.x = (_screen.width - default_width) / 2;
1722 pt.y = (_screen.height - default_height) / 2;
1723 break;
1724
1725 case WDP_MANUAL:
1726 pt.x = 0;
1727 pt.y = 0;
1728 break;
1729
1730 default:
1731 NOT_REACHED();
1732 }
1733
1734 return pt;
1735 }
1736
1737 /* virtual */ Point Window::OnInitialPosition(int16 sm_width, int16 sm_height, int window_number)
1738 {
1739 return LocalGetWindowPlacement(this->window_desc, sm_width, sm_height, window_number);
1740 }
1741
1749 void Window::CreateNestedTree(bool fill_nested)
1750 {
1751 int biggest_index = -1;
1752 this->nested_root = MakeWindowNWidgetTree(this->window_desc->nwid_parts, this->window_desc->nwid_length, &biggest_index, &this->shade_select);
1753 this->nested_array_size = (uint)(biggest_index + 1);
1754
1755 if (fill_nested) {
1756 this->nested_array = CallocT<NWidgetBase *>(this->nested_array_size);
1757 this->nested_root->FillNestedArray(this->nested_array, this->nested_array_size);
1758 }
1759 }
1760
1765 void Window::FinishInitNested(WindowNumber window_number)
1766 {
1767 this->InitializeData(window_number);
1768 this->ApplyDefaults();
1769 Point pt = this->OnInitialPosition(this->nested_root->smallest_x, this->nested_root->smallest_y, window_number);
1770 this->InitializePositionSize(pt.x, pt.y, this->nested_root->smallest_x, this->nested_root->smallest_y);
1771 this->FindWindowPlacementAndResize(this->window_desc->GetDefaultWidth(), this->window_desc->GetDefaultHeight());
1772 }
1773
1778 void Window::InitNested(WindowNumber window_number)
1779 {
1780 this->CreateNestedTree(false);
1781 this->FinishInitNested(window_number);
1782 }
1783
1788 Window::Window(WindowDesc *desc) : window_desc(desc), scrolling_scrollbar(-1)
1789 {
1790 }
1791
1799 Window *FindWindowFromPt(int x, int y)
1800 {
1801 Window *w;
1802 FOR_ALL_WINDOWS_FROM_FRONT(w) {
1803 if (MayBeShown(w) && IsInsideBS(x, w->left, w->width) && IsInsideBS(y, w->top, w->height)) {
1804 return w;
1805 }
1806 }
1807
1808 return NULL;
1809 }
1810
1814 void InitWindowSystem()
1815 {
1816 IConsoleClose();
1817
1818 _z_back_window = NULL;
1819 _z_front_window = NULL;
1820 _focused_window = NULL;
1821 _mouseover_last_w = NULL;
1822 _last_scroll_window = NULL;
1823 _scrolling_viewport = false;
1824 _mouse_hovering = false;
1825
1826 NWidgetLeaf::InvalidateDimensionCache(); // Reset cached sizes of several widgets.
1827 NWidgetScrollbar::InvalidateDimensionCache();
1828
1829 ShowFirstError();
1830 }
1831
1835 void UnInitWindowSystem()
1836 {
1837 UnshowCriticalError();
1838
1839 Window *w;
1840 FOR_ALL_WINDOWS_FROM_FRONT(w) delete w;
1841
1842 for (w = _z_front_window; w != NULL; /* nothing */) {
1843 Window *to_del = w;
1844 w = w->z_back;
1845 free(to_del);
1846 }
1847
1848 _z_front_window = NULL;
1849 _z_back_window = NULL;
1850 }
1851
1855 void ResetWindowSystem()
1856 {
1857 UnInitWindowSystem();
1858 InitWindowSystem();
1859 _thd.Reset();
1860 }
1861
1862 static void DecreaseWindowCounters()
1863 {
1864 Window *w;
1865 FOR_ALL_WINDOWS_FROM_FRONT(w) {
1866 if (_scroller_click_timeout == 0) {
1867 /* Unclick scrollbar buttons if they are pressed. */
1868 for (uint i = 0; i < w->nested_array_size; i++) {
1869 NWidgetBase *nwid = w->nested_array[i];
1870 if (nwid != NULL && (nwid->type == NWID_HSCROLLBAR || nwid->type == NWID_VSCROLLBAR)) {
1871 NWidgetScrollbar *sb = static_cast<NWidgetScrollbar*>(nwid);
1872 if (sb->disp_flags & (ND_SCROLLBAR_UP | ND_SCROLLBAR_DOWN)) {
1873 sb->disp_flags &= ~(ND_SCROLLBAR_UP | ND_SCROLLBAR_DOWN);
1874 w->scrolling_scrollbar = -1;
1875 sb->SetDirty(w);
1876 }
1877 }
1878 }
1879 }
1880
1881 /* Handle editboxes */
1882 for (SmallMap<int, QueryString*>::Pair *it = w->querystrings.Begin(); it != w->querystrings.End(); ++it) {
1883 it->second->HandleEditBox(w, it->first);
1884 }
1885
1886 w->OnMouseLoop();
1887 }
1888
1889 FOR_ALL_WINDOWS_FROM_FRONT(w) {
1890 if ((w->flags & WF_TIMEOUT) && --w->timeout_timer == 0) {
1891 CLRBITS(w->flags, WF_TIMEOUT);
1892
1893 w->OnTimeout();
1894 w->RaiseButtons(true);
1895 }
1896 }
1897 }
1898
1899 static void HandlePlacePresize()
1900 {
1901 if (_special_mouse_mode != WSM_PRESIZE) return;
1902
1903 Window *w = _thd.GetCallbackWnd();
1904 if (w == NULL) return;
1905
1906 Point pt = GetTileBelowCursor();
1907 if (pt.x == -1) {
1908 _thd.selend.x = -1;
1909 return;
1910 }
1911
1912 w->OnPlacePresize(pt, TileVirtXY(pt.x, pt.y));
1913 }
1914
1919 static EventState HandleMouseDragDrop()
1920 {
1921 if (_special_mouse_mode != WSM_DRAGDROP) return ES_NOT_HANDLED;
1922
1923 if (_left_button_down && _cursor.delta.x == 0 && _cursor.delta.y == 0) return ES_HANDLED; // Dragging, but the mouse did not move.
1924
1925 Window *w = _thd.GetCallbackWnd();
1926 if (w != NULL) {
1927 /* Send an event in client coordinates. */
1928 Point pt;
1929 pt.x = _cursor.pos.x - w->left;
1930 pt.y = _cursor.pos.y - w->top;
1931 if (_left_button_down) {
1932 w->OnMouseDrag(pt, GetWidgetFromPos(w, pt.x, pt.y));
1933 } else {
1934 w->OnDragDrop(pt, GetWidgetFromPos(w, pt.x, pt.y));
1935 }
1936 }
1937
1938 if (!_left_button_down) ResetObjectToPlace(); // Button released, finished dragging.
1939 return ES_HANDLED;
1940 }
1941
1943 static void HandleMouseOver()
1944 {
1945 Window *w = FindWindowFromPt(_cursor.pos.x, _cursor.pos.y);
1946
1947 /* We changed window, put a MOUSEOVER event to the last window */
1948 if (_mouseover_last_w != NULL && _mouseover_last_w != w) {
1949 /* Reset mouse-over coordinates of previous window */
1950 Point pt = { -1, -1 };
1951 _mouseover_last_w->OnMouseOver(pt, 0);
1952 }
1953
1954 /* _mouseover_last_w will get reset when the window is deleted, see DeleteWindow() */
1955 _mouseover_last_w = w;
1956
1957 if (w != NULL) {
1958 /* send an event in client coordinates. */
1959 Point pt = { _cursor.pos.x - w->left, _cursor.pos.y - w->top };
1960 const NWidgetCore *widget = w->nested_root->GetWidgetFromPos(pt.x, pt.y);
1961 if (widget != NULL) w->OnMouseOver(pt, widget->index);
1962 }
1963 }
1964
1966 static const int MIN_VISIBLE_TITLE_BAR = 13;
1967
1969 enum PreventHideDirection {
1970 PHD_UP,
1971 PHD_DOWN,
1972 };
1973
1984 static void PreventHiding(int *nx, int *ny, const Rect &rect, const Window *v, int px, PreventHideDirection dir)
1985 {
1986 if (v == NULL) return;
1987
1988 int v_bottom = v->top + v->height;
1989 int v_right = v->left + v->width;
1990 int safe_y = (dir == PHD_UP) ? (v->top - MIN_VISIBLE_TITLE_BAR - rect.top) : (v_bottom + MIN_VISIBLE_TITLE_BAR - rect.bottom); // Compute safe vertical position.
1991
1992 if (*ny + rect.top <= v->top - MIN_VISIBLE_TITLE_BAR) return; // Above v is enough space
1993 if (*ny + rect.bottom >= v_bottom + MIN_VISIBLE_TITLE_BAR) return; // Below v is enough space
1994
1995 /* Vertically, the rectangle is hidden behind v. */
1996 if (*nx + rect.left + MIN_VISIBLE_TITLE_BAR < v->left) { // At left of v.
1997 if (v->left < MIN_VISIBLE_TITLE_BAR) *ny = safe_y; // But enough room, force it to a safe position.
1998 return;
1999 }
2000 if (*nx + rect.right - MIN_VISIBLE_TITLE_BAR > v_right) { // At right of v.
2001 if (v_right > _screen.width - MIN_VISIBLE_TITLE_BAR) *ny = safe_y; // Not enough room, force it to a safe position.
2002 return;
2003 }
2004
2005 /* Horizontally also hidden, force movement to a safe area. */
2006 if (px + rect.left < v->left && v->left >= MIN_VISIBLE_TITLE_BAR) { // Coming from the left, and enough room there.
2007 *nx = v->left - MIN_VISIBLE_TITLE_BAR - rect.left;
2008 } else if (px + rect.right > v_right && v_right <= _screen.width - MIN_VISIBLE_TITLE_BAR) { // Coming from the right, and enough room there.
2009 *nx = v_right + MIN_VISIBLE_TITLE_BAR - rect.right;
2010 } else {
2011 *ny = safe_y;
2012 }
2013 }
2014
2022 static void EnsureVisibleCaption(Window *w, int nx, int ny)
2023 {
2024 /* Search for the title bar rectangle. */
2025 Rect caption_rect;
2026 const NWidgetBase *caption = w->nested_root->GetWidgetOfType(WWT_CAPTION);
2027 if (caption != NULL) {
2028 caption_rect.left = caption->pos_x;
2029 caption_rect.right = caption->pos_x + caption->current_x;
2030 caption_rect.top = caption->pos_y;
2031 caption_rect.bottom = caption->pos_y + caption->current_y;
2032
2033 /* Make sure the window doesn't leave the screen */
2034 nx = Clamp(nx, MIN_VISIBLE_TITLE_BAR - caption_rect.right, _screen.width - MIN_VISIBLE_TITLE_BAR - caption_rect.left);
2035 ny = Clamp(ny, 0, _screen.height - MIN_VISIBLE_TITLE_BAR);
2036
2037 /* Make sure the title bar isn't hidden behind the main tool bar or the status bar. */
2038 PreventHiding(&nx, &ny, caption_rect, FindWindowById(WC_MAIN_TOOLBAR, 0), w->left, PHD_DOWN);
2039 PreventHiding(&nx, &ny, caption_rect, FindWindowById(WC_STATUS_BAR, 0), w->left, PHD_UP);
2040 }
2041
2042 if (w->viewport != NULL) {
2043 w->viewport->left += nx - w->left;
2044 w->viewport->top += ny - w->top;
2045 }
2046
2047 w->left = nx;
2048 w->top = ny;
2049 }
2050
2061 void ResizeWindow(Window *w, int delta_x, int delta_y, bool clamp_to_screen)
2062 {
2063 if (delta_x != 0 || delta_y != 0) {
2064 if (clamp_to_screen) {
2065 /* Determine the new right/bottom position. If that is outside of the bounds of
2066 * the resolution clamp it in such a manner that it stays within the bounds. */
2067 int new_right = w->left + w->width + delta_x;
2068 int new_bottom = w->top + w->height + delta_y;
2069 if (new_right >= (int)_cur_resolution.width) delta_x -= Ceil(new_right - _cur_resolution.width, max(1U, w->nested_root->resize_x));
2070 if (new_bottom >= (int)_cur_resolution.height) delta_y -= Ceil(new_bottom - _cur_resolution.height, max(1U, w->nested_root->resize_y));
2071 }
2072
2073 w->SetDirty();
2074
2075 uint new_xinc = max(0, (w->nested_root->resize_x == 0) ? 0 : (int)(w->nested_root->current_x - w->nested_root->smallest_x) + delta_x);
2076 uint new_yinc = max(0, (w->nested_root->resize_y == 0) ? 0 : (int)(w->nested_root->current_y - w->nested_root->smallest_y) + delta_y);
2077 assert(w->nested_root->resize_x == 0 || new_xinc % w->nested_root->resize_x == 0);
2078 assert(w->nested_root->resize_y == 0 || new_yinc % w->nested_root->resize_y == 0);
2079
2080 w->nested_root->AssignSizePosition(ST_RESIZE, 0, 0, w->nested_root->smallest_x + new_xinc, w->nested_root->smallest_y + new_yinc, _current_text_dir == TD_RTL);
2081 w->width = w->nested_root->current_x;
2082 w->height = w->nested_root->current_y;
2083 }
2084
2085 EnsureVisibleCaption(w, w->left, w->top);
2086
2087 /* Always call OnResize to make sure everything is initialised correctly if it needs to be. */
2088 w->OnResize();
2089 w->SetDirty();
2090 }
2091
2097 int GetMainViewTop()
2098 {
2099 Window *w = FindWindowById(WC_MAIN_TOOLBAR, 0);
2100 return (w == NULL) ? 0 : w->top + w->height;
2101 }
2102
2108 int GetMainViewBottom()
2109 {
2110 Window *w = FindWindowById(WC_STATUS_BAR, 0);
2111 return (w == NULL) ? _screen.height : w->top;
2112 }
2113
2114 static bool _dragging_window;
2115
2120 static EventState HandleWindowDragging()
2121 {
2122 /* Get out immediately if no window is being dragged at all. */
2123 if (!_dragging_window) return ES_NOT_HANDLED;
2124
2125 /* If button still down, but cursor hasn't moved, there is nothing to do. */
2126 if (_left_button_down && _cursor.delta.x == 0 && _cursor.delta.y == 0) return ES_HANDLED;
2127
2128 /* Otherwise find the window... */
2129 Window *w;
2130 FOR_ALL_WINDOWS_FROM_BACK(w) {
2131 if (w->flags & WF_DRAGGING) {
2132 /* Stop the dragging if the left mouse button was released */
2133 if (!_left_button_down) {
2134 w->flags &= ~WF_DRAGGING;
2135 break;
2136 }
2137
2138 w->SetDirty();
2139
2140 int x = _cursor.pos.x + _drag_delta.x;
2141 int y = _cursor.pos.y + _drag_delta.y;
2142 int nx = x;
2143 int ny = y;
2144
2145 if (_settings_client.gui.window_snap_radius != 0) {
2146 const Window *v;
2147
2148 int hsnap = _settings_client.gui.window_snap_radius;
2149 int vsnap = _settings_client.gui.window_snap_radius;
2150 int delta;
2151
2152 FOR_ALL_WINDOWS_FROM_BACK(v) {
2153 if (v == w) continue; // Don't snap at yourself
2154
2155 if (y + w->height > v->top && y < v->top + v->height) {
2156 /* Your left border <-> other right border */
2157 delta = abs(v->left + v->width - x);
2158 if (delta <= hsnap) {
2159 nx = v->left + v->width;
2160 hsnap = delta;
2161 }
2162
2163 /* Your right border <-> other left border */
2164 delta = abs(v->left - x - w->width);
2165 if (delta <= hsnap) {
2166 nx = v->left - w->width;
2167 hsnap = delta;
2168 }
2169 }
2170
2171 if (w->top + w->height >= v->top && w->top <= v->top + v->height) {
2172 /* Your left border <-> other left border */
2173 delta = abs(v->left - x);
2174 if (delta <= hsnap) {
2175 nx = v->left;
2176 hsnap = delta;
2177 }
2178
2179 /* Your right border <-> other right border */
2180 delta = abs(v->left + v->width - x - w->width);
2181 if (delta <= hsnap) {
2182 nx = v->left + v->width - w->width;
2183 hsnap = delta;
2184 }
2185 }
2186
2187 if (x + w->width > v->left && x < v->left + v->width) {
2188 /* Your top border <-> other bottom border */
2189 delta = abs(v->top + v->height - y);
2190 if (delta <= vsnap) {
2191 ny = v->top + v->height;
2192 vsnap = delta;
2193 }
2194
2195 /* Your bottom border <-> other top border */
2196 delta = abs(v->top - y - w->height);
2197 if (delta <= vsnap) {
2198 ny = v->top - w->height;
2199 vsnap = delta;
2200 }
2201 }
2202
2203 if (w->left + w->width >= v->left && w->left <= v->left + v->width) {
2204 /* Your top border <-> other top border */
2205 delta = abs(v->top - y);
2206 if (delta <= vsnap) {
2207 ny = v->top;
2208 vsnap = delta;
2209 }
2210
2211 /* Your bottom border <-> other bottom border */
2212 delta = abs(v->top + v->height - y - w->height);
2213 if (delta <= vsnap) {
2214 ny = v->top + v->height - w->height;
2215 vsnap = delta;
2216 }
2217 }
2218 }
2219 }
2220
2221 EnsureVisibleCaption(w, nx, ny);
2222
2223 w->SetDirty();
2224 return ES_HANDLED;
2225 } else if (w->flags & WF_SIZING) {
2226 /* Stop the sizing if the left mouse button was released */
2227 if (!_left_button_down) {
2228 w->flags &= ~WF_SIZING;
2229 w->SetDirty();
2230 break;
2231 }
2232
2233 /* Compute difference in pixels between cursor position and reference point in the window.
2234 * If resizing the left edge of the window, moving to the left makes the window bigger not smaller.
2235 */
2236 int x, y = _cursor.pos.y - _drag_delta.y;
2237 if (w->flags & WF_SIZING_LEFT) {
2238 x = _drag_delta.x - _cursor.pos.x;
2239 } else {
2240 x = _cursor.pos.x - _drag_delta.x;
2241 }
2242
2243 /* resize.step_width and/or resize.step_height may be 0, which means no resize is possible. */
2244 if (w->resize.step_width == 0) x = 0;
2245 if (w->resize.step_height == 0) y = 0;
2246
2247 /* Check the resize button won't go past the bottom of the screen */
2248 if (w->top + w->height + y > _screen.height) {
2249 y = _screen.height - w->height - w->top;
2250 }
2251
2252 /* X and Y has to go by step.. calculate it.
2253 * The cast to int is necessary else x/y are implicitly casted to
2254 * unsigned int, which won't work. */
2255 if (w->resize.step_width > 1) x -= x % (int)w->resize.step_width;
2256 if (w->resize.step_height > 1) y -= y % (int)w->resize.step_height;
2257
2258 /* Check that we don't go below the minimum set size */
2259 if ((int)w->width + x < (int)w->nested_root->smallest_x) {
2260 x = w->nested_root->smallest_x - w->width;
2261 }
2262 if ((int)w->height + y < (int)w->nested_root->smallest_y) {
2263 y = w->nested_root->smallest_y - w->height;
2264 }
2265
2266 /* Window already on size */
2267 if (x == 0 && y == 0) return ES_HANDLED;
2268
2269 /* Now find the new cursor pos.. this is NOT _cursor, because we move in steps. */
2270 _drag_delta.y += y;
2271 if ((w->flags & WF_SIZING_LEFT) && x != 0) {
2272 _drag_delta.x -= x; // x > 0 -> window gets longer -> left-edge moves to left -> subtract x to get new position.
2273 w->SetDirty();
2274 w->left -= x; // If dragging left edge, move left window edge in opposite direction by the same amount.
2275 /* ResizeWindow() below ensures marking new position as dirty. */
2276 } else {
2277 _drag_delta.x += x;
2278 }
2279
2280 /* ResizeWindow sets both pre- and after-size to dirty for redrawal */
2281 ResizeWindow(w, x, y);
2282 return ES_HANDLED;
2283 }
2284 }
2285
2286 _dragging_window = false;
2287 return ES_HANDLED;
2288 }
2289
2294 static void StartWindowDrag(Window *w)
2295 {
2296 w->flags |= WF_DRAGGING;
2297 w->flags &= ~WF_CENTERED;
2298 _dragging_window = true;
2299
2300 _drag_delta.x = w->left - _cursor.pos.x;
2301 _drag_delta.y = w->top - _cursor.pos.y;
2302
2303 BringWindowToFront(w);
2304 DeleteWindowById(WC_DROPDOWN_MENU, 0);
2305 }
2306
2312 static void StartWindowSizing(Window *w, bool to_left)
2313 {
2314 w->flags |= to_left ? WF_SIZING_LEFT : WF_SIZING_RIGHT;
2315 w->flags &= ~WF_CENTERED;
2316 _dragging_window = true;
2317
2318 _drag_delta.x = _cursor.pos.x;
2319 _drag_delta.y = _cursor.pos.y;
2320
2321 BringWindowToFront(w);
2322 DeleteWindowById(WC_DROPDOWN_MENU, 0);
2323 }
2324
2329 static EventState HandleScrollbarScrolling()
2330 {
2331 Window *w;
2332 FOR_ALL_WINDOWS_FROM_BACK(w) {
2333 if (w->scrolling_scrollbar >= 0) {
2334 /* Abort if no button is clicked any more. */
2335 if (!_left_button_down) {
2336 w->scrolling_scrollbar = -1;
2337 w->SetDirty();
2338 return ES_HANDLED;
2339 }
2340
2341 int i;
2342 NWidgetScrollbar *sb = w->GetWidget<NWidgetScrollbar>(w->scrolling_scrollbar);
2343 bool rtl = false;
2344
2345 if (sb->type == NWID_HSCROLLBAR) {
2346 i = _cursor.pos.x - _cursorpos_drag_start.x;
2347 rtl = _current_text_dir == TD_RTL;
2348 } else {
2349 i = _cursor.pos.y - _cursorpos_drag_start.y;
2350 }
2351
2352 if (sb->disp_flags & ND_SCROLLBAR_BTN) {
2353 if (_scroller_click_timeout == 1) {
2354 _scroller_click_timeout = 3;
2355 sb->UpdatePosition(rtl == HasBit(sb->disp_flags, NDB_SCROLLBAR_UP) ? 1 : -1);
2356 w->SetDirty();
2357 }
2358 return ES_HANDLED;
2359 }
2360
2361 /* Find the item we want to move to and make sure it's inside bounds. */
2362 int pos = min(max(0, i + _scrollbar_start_pos) * sb->GetCount() / _scrollbar_size, max(0, sb->GetCount() - sb->GetCapacity()));
2363 if (rtl) pos = max(0, sb->GetCount() - sb->GetCapacity() - pos);
2364 if (pos != sb->GetPosition()) {
2365 sb->SetPosition(pos);
2366 w->SetDirty();
2367 }
2368 return ES_HANDLED;
2369 }
2370 }
2371
2372 return ES_NOT_HANDLED;
2373 }
2374
2379 static EventState HandleViewportScroll()
2380 {
2381 bool scrollwheel_scrolling = _settings_client.gui.scrollwheel_scrolling == 1 && (_cursor.v_wheel != 0 || _cursor.h_wheel != 0);
2382
2383 if (!_scrolling_viewport) return ES_NOT_HANDLED;
2384
2385 /* When we don't have a last scroll window we are starting to scroll.
2386 * When the last scroll window and this are not the same we went
2387 * outside of the window and should not left-mouse scroll anymore. */
2388 if (_last_scroll_window == NULL) _last_scroll_window = FindWindowFromPt(_cursor.pos.x, _cursor.pos.y);
2389
2390 if (_last_scroll_window == NULL || !(_right_button_down || scrollwheel_scrolling || (_settings_client.gui.left_mouse_btn_scrolling && _left_button_down))) {
2391 _cursor.fix_at = false;
2392 _scrolling_viewport = false;
2393 _last_scroll_window = NULL;
2394 return ES_NOT_HANDLED;
2395 }
2396
2397 if (_last_scroll_window == FindWindowById(WC_MAIN_WINDOW, 0) && _last_scroll_window->viewport->follow_vehicle != INVALID_VEHICLE) {
2398 /* If the main window is following a vehicle, then first let go of it! */
2399 const Vehicle *veh = Vehicle::Get(_last_scroll_window->viewport->follow_vehicle);
2400 ScrollMainWindowTo(veh->x_pos, veh->y_pos, veh->z_pos, true); // This also resets follow_vehicle
2401 return ES_NOT_HANDLED;
2402 }
2403
2404 Point delta;
2405 if (_settings_client.gui.reverse_scroll || (_settings_client.gui.left_mouse_btn_scrolling && _left_button_down)) {
2406 delta.x = -_cursor.delta.x;
2407 delta.y = -_cursor.delta.y;
2408 } else {
2409 delta.x = _cursor.delta.x;
2410 delta.y = _cursor.delta.y;
2411 }
2412
2413 if (scrollwheel_scrolling) {
2414 /* We are using scrollwheels for scrolling */
2415 delta.x = _cursor.h_wheel;
2416 delta.y = _cursor.v_wheel;
2417 _cursor.v_wheel = 0;
2418 _cursor.h_wheel = 0;
2419 }
2420
2421 /* Create a scroll-event and send it to the window */
2422 if (delta.x != 0 || delta.y != 0) _last_scroll_window->OnScroll(delta);
2423
2424 _cursor.delta.x = 0;
2425 _cursor.delta.y = 0;
2426 return ES_HANDLED;
2427 }
2428
2439 static bool MaybeBringWindowToFront(Window *w)
2440 {
2441 bool bring_to_front = false;
2442
2443 if (w->window_class == WC_MAIN_WINDOW ||
2444 IsVitalWindow(w) ||
2445 w->window_class == WC_TOOLTIPS ||
2446 w->window_class == WC_DROPDOWN_MENU) {
2447 return true;
2448 }
2449
2450 /* Use unshaded window size rather than current size for shaded windows. */
2451 int w_width = w->width;
2452 int w_height = w->height;
2453 if (w->IsShaded()) {
2454 w_width = w->unshaded_size.width;
2455 w_height = w->unshaded_size.height;
2456 }
2457
2458 Window *u;
2459 FOR_ALL_WINDOWS_FROM_BACK_FROM(u, w->z_front) {
2460 /* A modal child will prevent the activation of the parent window */
2461 if (u->parent == w && (u->window_desc->flags & WDF_MODAL)) {
2462 u->SetWhiteBorder();
2463 u->SetDirty();
2464 return false;
2465 }
2466
2467 if (u->window_class == WC_MAIN_WINDOW ||
2468 IsVitalWindow(u) ||
2469 u->window_class == WC_TOOLTIPS ||
2470 u->window_class == WC_DROPDOWN_MENU) {
2471 continue;
2472 }
2473
2474 /* Window sizes don't interfere, leave z-order alone */
2475 if (w->left + w_width <= u->left ||
2476 u->left + u->width <= w->left ||
2477 w->top + w_height <= u->top ||
2478 u->top + u->height <= w->top) {
2479 continue;
2480 }
2481
2482 bring_to_front = true;
2483 }
2484
2485 if (bring_to_front) BringWindowToFront(w);
2486 return true;
2487 }
2488
2497 EventState Window::HandleEditBoxKey(int wid, WChar key, uint16 keycode)
2498 {
2499 QueryString *query = this->GetQueryString(wid);
2500 if (query == NULL) return ES_NOT_HANDLED;
2501
2502 int action = QueryString::ACTION_NOTHING;
2503
2504 switch (query->text.HandleKeyPress(key, keycode)) {
2505 case HKPR_EDITING:
2506 this->SetWidgetDirty(wid);
2507 this->OnEditboxChanged(wid);
2508 break;
2509
2510 case HKPR_CURSOR:
2511 this->SetWidgetDirty(wid);
2512 /* For the OSK also invalidate the parent window */
2513 if (this->window_class == WC_OSK) this->InvalidateData();
2514 break;
2515
2516 case HKPR_CONFIRM:
2517 if (this->window_class == WC_OSK) {
2518 this->OnClick(Point(), WID_OSK_OK, 1);
2519 } else if (query->ok_button >= 0) {
2520 this->OnClick(Point(), query->ok_button, 1);
2521 } else {
2522 action = query->ok_button;
2523 }
2524 break;
2525
2526 case HKPR_CANCEL:
2527 if (this->window_class == WC_OSK) {
2528 this->OnClick(Point(), WID_OSK_CANCEL, 1);
2529 } else if (query->cancel_button >= 0) {
2530 this->OnClick(Point(), query->cancel_button, 1);
2531 } else {
2532 action = query->cancel_button;
2533 }
2534 break;
2535
2536 case HKPR_NOT_HANDLED:
2537 return ES_NOT_HANDLED;
2538
2539 default: break;
2540 }
2541
2542 switch (action) {
2543 case QueryString::ACTION_DESELECT:
2544 this->UnfocusFocusedWidget();
2545 break;
2546
2547 case QueryString::ACTION_CLEAR:
2548 if (query->text.bytes <= 1) {
2549 /* If already empty, unfocus instead */
2550 this->UnfocusFocusedWidget();
2551 } else {
2552 query->text.DeleteAll();
2553 this->SetWidgetDirty(wid);
2554 this->OnEditboxChanged(wid);
2555 }
2556 break;
2557
2558 default:
2559 break;
2560 }
2561
2562 return ES_HANDLED;
2563 }
2564
2570 void HandleKeypress(uint keycode, WChar key)
2571 {
2572 /* World generation is multithreaded and messes with companies.
2573 * But there is no company related window open anyway, so _current_company is not used. */
2574 assert(HasModalProgress() || IsLocalCompany());
2575
2576 /*
2577 * The Unicode standard defines an area called the private use area. Code points in this
2578 * area are reserved for private use and thus not portable between systems. For instance,
2579 * Apple defines code points for the arrow keys in this area, but these are only printable
2580 * on a system running OS X. We don't want these keys to show up in text fields and such,
2581 * and thus we have to clear the unicode character when we encounter such a key.
2582 */
2583 if (key >= 0xE000 && key <= 0xF8FF) key = 0;
2584
2585 /*
2586 * If both key and keycode is zero, we don't bother to process the event.
2587 */
2588 if (key == 0 && keycode == 0) return;
2589
2590 /* Check if the focused window has a focused editbox */
2591 if (EditBoxInGlobalFocus()) {
2592 /* All input will in this case go to the focused editbox */
2593 if (_focused_window->window_class == WC_CONSOLE) {
2594 if (_focused_window->OnKeyPress(key, keycode) == ES_HANDLED) return;
2595 } else {
2596 if (_focused_window->HandleEditBoxKey(_focused_window->nested_focus->index, key, keycode) == ES_HANDLED) return;
2597 }
2598 }
2599
2600 /* Call the event, start with the uppermost window, but ignore the toolbar. */
2601 Window *w;
2602 FOR_ALL_WINDOWS_FROM_FRONT(w) {
2603 if (w->window_class == WC_MAIN_TOOLBAR) continue;
2604 if (w->window_desc->hotkeys != NULL) {
2605 int hotkey = w->window_desc->hotkeys->CheckMatch(keycode);
2606 if (hotkey >= 0 && w->OnHotkey(hotkey) == ES_HANDLED) return;
2607 }
2608 if (w->OnKeyPress(key, keycode) == ES_HANDLED) return;
2609 }
2610
2611 w = FindWindowById(WC_MAIN_TOOLBAR, 0);
2612 /* When there is no toolbar w is null, check for that */
2613 if (w != NULL) {
2614 if (w->window_desc->hotkeys != NULL) {
2615 int hotkey = w->window_desc->hotkeys->CheckMatch(keycode);
2616 if (hotkey >= 0 && w->OnHotkey(hotkey) == ES_HANDLED) return;
2617 }
2618 if (w->OnKeyPress(key, keycode) == ES_HANDLED) return;
2619 }
2620
2621 HandleGlobalHotkeys(key, keycode);
2622 }
2623
2627 void HandleCtrlChanged()
2628 {
2629 /* Call the event, start with the uppermost window. */
2630 Window *w;
2631 FOR_ALL_WINDOWS_FROM_FRONT(w) {
2632 if (w->OnCTRLStateChange() == ES_HANDLED) return;
2633 }
2634 }
2635
2641 /* virtual */ void Window::InsertTextString(int wid, const char *str, bool marked, const char *caret, const char *insert_location, const char *replacement_end)
2642 {
2643 QueryString *query = this->GetQueryString(wid);
2644 if (query == NULL) return;
2645
2646 if (query->text.InsertString(str, marked, caret, insert_location, replacement_end) || marked) {
2647 this->SetWidgetDirty(wid);
2648 this->OnEditboxChanged(wid);
2649 }
2650 }
2651
2658 void HandleTextInput(const char *str, bool marked, const char *caret, const char *insert_location, const char *replacement_end)
2659 {
2660 if (!EditBoxInGlobalFocus()) return;
2661
2662 _focused_window->InsertTextString(_focused_window->window_class == WC_CONSOLE ? 0 : _focused_window->nested_focus->index, str, marked, caret, insert_location, replacement_end);
2663 }
2664
2671 static int _input_events_this_tick = 0;
2672
2677 static void HandleAutoscroll()
2678 {
2679 if (_game_mode == GM_MENU || HasModalProgress()) return;
2680 if (_settings_client.gui.auto_scrolling == VA_DISABLED) return;
2681 if (_settings_client.gui.auto_scrolling == VA_MAIN_VIEWPORT_FULLSCREEN && !_fullscreen) return;
2682
2683 int x = _cursor.pos.x;
2684 int y = _cursor.pos.y;
2685 Window *w = FindWindowFromPt(x, y);
2686 if (w == NULL || w->flags & WF_DISABLE_VP_SCROLL) return;
2687 if (_settings_client.gui.auto_scrolling != VA_EVERY_VIEWPORT && w->window_class != WC_MAIN_WINDOW) return;
2688
2689 ViewPort *vp = IsPtInWindowViewport(w, x, y);
2690 if (vp == NULL) return;
2691
2692 x -= vp->left;
2693 y -= vp->top;
2694
2695 /* here allows scrolling in both x and y axis */
2696 #define scrollspeed 3
2697 if (x - 15 < 0) {
2698 w->viewport->dest_scrollpos_x += ScaleByZoom((x - 15) * scrollspeed, vp->zoom);
2699 } else if (15 - (vp->width - x) > 0) {
2700 w->viewport->dest_scrollpos_x += ScaleByZoom((15 - (vp->width - x)) * scrollspeed, vp->zoom);
2701 }
2702 if (y - 15 < 0) {
2703 w->viewport->dest_scrollpos_y += ScaleByZoom((y - 15) * scrollspeed, vp->zoom);
2704 } else if (15 - (vp->height - y) > 0) {
2705 w->viewport->dest_scrollpos_y += ScaleByZoom((15 - (vp->height - y)) * scrollspeed, vp->zoom);
2706 }
2707 #undef scrollspeed
2708 }
2709
2710 enum MouseClick {
2711 MC_NONE = 0,
2712 MC_LEFT,
2713 MC_RIGHT,
2714 MC_DOUBLE_LEFT,
2715 MC_HOVER,
2716
2717 MAX_OFFSET_DOUBLE_CLICK = 5,
2718 TIME_BETWEEN_DOUBLE_CLICK = 500,
2719 MAX_OFFSET_HOVER = 5,
2720 };
2721 extern EventState VpHandlePlaceSizingDrag();
2722
2723 static void ScrollMainViewport(int x, int y)
2724 {
2725 if (_game_mode != GM_MENU) {
2726 Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
2727 assert(w);
2728
2729 w->viewport->dest_scrollpos_x += ScaleByZoom(x, w->viewport->zoom);
2730 w->viewport->dest_scrollpos_y += ScaleByZoom(y, w->viewport->zoom);
2731 }
2732 }
2733
2743 static const int8 scrollamt[16][2] = {
2744 { 0, 0},
2745 {-2, 0},
2746 { 0, -2},
2747 {-2, -1},
2748 { 2, 0},
2749 { 0, 0},
2750 { 2, -1},
2751 { 0, -2},
2752 { 0, 2},
2753 {-2, 1},
2754 { 0, 0},
2755 {-2, 0},
2756 { 2, 1},
2757 { 0, 2},
2758 { 2, 0},
2759 { 0, 0},
2760 };
2761
2762 static void HandleKeyScrolling()
2763 {
2764 /*
2765 * Check that any of the dirkeys is pressed and that the focused window
2766 * doesn't have an edit-box as focused widget.
2767 */
2768 if (_dirkeys && !EditBoxInGlobalFocus()) {
2769 int factor = _shift_pressed ? 50 : 10;
2770 ScrollMainViewport(scrollamt[_dirkeys][0] * factor, scrollamt[_dirkeys][1] * factor);
2771 }
2772 }
2773
2774 static void MouseLoop(MouseClick click, int mousewheel)
2775 {
2776 /* World generation is multithreaded and messes with companies.
2777 * But there is no company related window open anyway, so _current_company is not used. */
2778 assert(HasModalProgress() || IsLocalCompany());
2779
2780 HandlePlacePresize();
2781 UpdateTileSelection();
2782
2783 if (VpHandlePlaceSizingDrag() == ES_HANDLED) return;
2784 if (HandleMouseDragDrop() == ES_HANDLED) return;
2785 if (HandleWindowDragging() == ES_HANDLED) return;
2786 if (HandleScrollbarScrolling() == ES_HANDLED) return;
2787 if (HandleViewportScroll() == ES_HANDLED) return;
2788
2789 HandleMouseOver();
2790
2791 bool scrollwheel_scrolling = _settings_client.gui.scrollwheel_scrolling == 1 && (_cursor.v_wheel != 0 || _cursor.h_wheel != 0);
2792 if (click == MC_NONE && mousewheel == 0 && !scrollwheel_scrolling) return;
2793
2794 int x = _cursor.pos.x;
2795 int y = _cursor.pos.y;
2796 Window *w = FindWindowFromPt(x, y);
2797 if (w == NULL) return;
2798
2799 if (click != MC_HOVER && !MaybeBringWindowToFront(w)) return;
2800 ViewPort *vp = IsPtInWindowViewport(w, x, y);
2801
2802 /* Don't allow any action in a viewport if either in menu or when having a modal progress window */
2803 if (vp != NULL && (_game_mode == GM_MENU || HasModalProgress())) return;
2804
2805 if (mousewheel != 0) {
2806 /* Send mousewheel event to window */
2807 w->OnMouseWheel(mousewheel);
2808
2809 /* Dispatch a MouseWheelEvent for widgets if it is not a viewport */
2810 if (vp == NULL) DispatchMouseWheelEvent(w, w->nested_root->GetWidgetFromPos(x - w->left, y - w->top), mousewheel);
2811 }
2812
2813 if (vp != NULL) {
2814 if (scrollwheel_scrolling) click = MC_RIGHT; // we are using the scrollwheel in a viewport, so we emulate right mouse button
2815 switch (click) {
2816 case MC_DOUBLE_LEFT:
2817 case MC_LEFT:
2818 DEBUG(misc, 2, "Cursor: 0x%X (%d)", _cursor.sprite, _cursor.sprite);
2819 if (!HandleViewportClicked(vp, x, y) &&
2820 !(w->flags & WF_DISABLE_VP_SCROLL) &&
2821 _settings_client.gui.left_mouse_btn_scrolling) {
2822 _scrolling_viewport = true;
2823 _cursor.fix_at = false;
2824 }
2825 break;
2826
2827 case MC_RIGHT:
2828 if (!(w->flags & WF_DISABLE_VP_SCROLL)) {
2829 _scrolling_viewport = true;
2830 _cursor.fix_at = true;
2831
2832 /* clear 2D scrolling caches before we start a 2D scroll */
2833 _cursor.h_wheel = 0;
2834 _cursor.v_wheel = 0;
2835 }
2836 break;
2837
2838 default:
2839 break;
2840 }
2841 } else {
2842 switch (click) {
2843 case MC_LEFT:
2844 case MC_DOUBLE_LEFT:
2845 DispatchLeftClickEvent(w, x - w->left, y - w->top, click == MC_DOUBLE_LEFT ? 2 : 1);
2846 break;
2847
2848 default:
2849 if (!scrollwheel_scrolling || w == NULL || w->window_class != WC_SMALLMAP) break;
2850 /* We try to use the scrollwheel to scroll since we didn't touch any of the buttons.
2851 * Simulate a right button click so we can get started. */
2852 /* FALL THROUGH */
2853
2854 case MC_RIGHT: DispatchRightClickEvent(w, x - w->left, y - w->top); break;
2855
2856 case MC_HOVER: DispatchHoverEvent(w, x - w->left, y - w->top); break;
2857 }
2858 }
2859 }
2860
2864 void HandleMouseEvents()
2865 {
2866 /* World generation is multithreaded and messes with companies.
2867 * But there is no company related window open anyway, so _current_company is not used. */
2868 assert(HasModalProgress() || IsLocalCompany());
2869
2870 static int double_click_time = 0;
2871 static Point double_click_pos = {0, 0};
2872
2873 /* Mouse event? */
2874 MouseClick click = MC_NONE;
2875 if (_left_button_down && !_left_button_clicked) {
2876 click = MC_LEFT;
2877 if (double_click_time != 0 && _realtime_tick - double_click_time < TIME_BETWEEN_DOUBLE_CLICK &&
2878 double_click_pos.x != 0 && abs(_cursor.pos.x - double_click_pos.x) < MAX_OFFSET_DOUBLE_CLICK &&
2879 double_click_pos.y != 0 && abs(_cursor.pos.y - double_click_pos.y) < MAX_OFFSET_DOUBLE_CLICK) {
2880 click = MC_DOUBLE_LEFT;
2881 }
2882 double_click_time = _realtime_tick;
2883 double_click_pos = _cursor.pos;
2884 _left_button_clicked = true;
2885 _input_events_this_tick++;
2886 } else if (_right_button_clicked) {
2887 _right_button_clicked = false;
2888 click = MC_RIGHT;
2889 _input_events_this_tick++;
2890 }
2891
2892 int mousewheel = 0;
2893 if (_cursor.wheel) {
2894 mousewheel = _cursor.wheel;
2895 _cursor.wheel = 0;
2896 _input_events_this_tick++;
2897 }
2898
2899 static uint32 hover_time = 0;
2900 static Point hover_pos = {0, 0};
2901
2902 if (_settings_client.gui.hover_delay_ms > 0) {
2903 if (!_cursor.in_window || click != MC_NONE || mousewheel != 0 || _left_button_down || _right_button_down ||
2904 hover_pos.x == 0 || abs(_cursor.pos.x - hover_pos.x) >= MAX_OFFSET_HOVER ||
2905 hover_pos.y == 0 || abs(_cursor.pos.y - hover_pos.y) >= MAX_OFFSET_HOVER) {
2906 hover_pos = _cursor.pos;
2907 hover_time = _realtime_tick;
2908 _mouse_hovering = false;
2909 } else {
2910 if (hover_time != 0 && _realtime_tick > hover_time + _settings_client.gui.hover_delay_ms) {
2911 click = MC_HOVER;
2912 _input_events_this_tick++;
2913 _mouse_hovering = true;
2914 }
2915 }
2916 }
2917
2918 /* Handle sprite picker before any GUI interaction */
2919 if (_newgrf_debug_sprite_picker.mode == SPM_REDRAW && _newgrf_debug_sprite_picker.click_time != _realtime_tick) {
2920 /* Next realtime tick? Then redraw has finished */
2921 _newgrf_debug_sprite_picker.mode = SPM_NONE;
2922 InvalidateWindowData(WC_SPRITE_ALIGNER, 0, 1);
2923 }
2924
2925 if (click == MC_LEFT && _newgrf_debug_sprite_picker.mode == SPM_WAIT_CLICK) {
2926 /* Mark whole screen dirty, and wait for the next realtime tick, when drawing is finished. */
2927 Blitter *blitter = BlitterFactory::GetCurrentBlitter();
2928 _newgrf_debug_sprite_picker.clicked_pixel = blitter->MoveTo(_screen.dst_ptr, _cursor.pos.x, _cursor.pos.y);
2929 _newgrf_debug_sprite_picker.click_time = _realtime_tick;
2930 _newgrf_debug_sprite_picker.sprites.Clear();
2931 _newgrf_debug_sprite_picker.mode = SPM_REDRAW;
2932 MarkWholeScreenDirty();
2933 } else {
2934 MouseLoop(click, mousewheel);
2935 }
2936
2937 /* We have moved the mouse the required distance,
2938 * no need to move it at any later time. */
2939 _cursor.delta.x = 0;
2940 _cursor.delta.y = 0;
2941 }
2942
2946 static void CheckSoftLimit()
2947 {
2948 if (_settings_client.gui.window_soft_limit == 0) return;
2949
2950 for (;;) {
2951 uint deletable_count = 0;
2952 Window *w, *last_deletable = NULL;
2953 FOR_ALL_WINDOWS_FROM_FRONT(w) {
2954 if (w->window_class == WC_MAIN_WINDOW || IsVitalWindow(w) || (w->flags & WF_STICKY)) continue;
2955
2956 last_deletable = w;
2957 deletable_count++;
2958 }
2959
2960 /* We've not reached the soft limit yet. */
2961 if (deletable_count <= _settings_client.gui.window_soft_limit) break;
2962
2963 assert(last_deletable != NULL);
2964 delete last_deletable;
2965 }
2966 }
2967
2971 void InputLoop()
2972 {
2973 /* World generation is multithreaded and messes with companies.
2974 * But there is no company related window open anyway, so _current_company is not used. */
2975 assert(HasModalProgress() || IsLocalCompany());
2976
2977 CheckSoftLimit();
2978 HandleKeyScrolling();
2979
2980 /* Do the actual free of the deleted windows. */
2981 for (Window *v = _z_front_window; v != NULL; /* nothing */) {
2982 Window *w = v;
2983 v = v->z_back;
2984
2985 if (w->window_class != WC_INVALID) continue;
2986
2987 RemoveWindowFromZOrdering(w);
2988 free(w);
2989 }
2990
2991 if (_scroller_click_timeout != 0) _scroller_click_timeout--;
2992 DecreaseWindowCounters();
2993
2994 if (_input_events_this_tick != 0) {
2995 /* The input loop is called only once per GameLoop() - so we can clear the counter here */
2996 _input_events_this_tick = 0;
2997 /* there were some inputs this tick, don't scroll ??? */
2998 return;
2999 }
3000
3001 /* HandleMouseEvents was already called for this tick */
3002 HandleMouseEvents();
3003 HandleAutoscroll();
3004 }
3005
3009 void UpdateWindows()
3010 {
3011 Window *w;
3012
3013 static int highlight_timer = 1;
3014 if (--highlight_timer == 0) {
3015 highlight_timer = 15;
3016 _window_highlight_colour = !_window_highlight_colour;
3017 }
3018
3019 FOR_ALL_WINDOWS_FROM_FRONT(w) {
3020 w->ProcessScheduledInvalidations();
3021 w->ProcessHighlightedInvalidations();
3022 }
3023
3024 static int we4_timer = 0;
3025 int t = we4_timer + 1;
3026
3027 if (t >= 100) {
3028 FOR_ALL_WINDOWS_FROM_FRONT(w) {
3029 w->OnHundredthTick();
3030 }
3031 t = 0;
3032 }
3033 we4_timer = t;
3034
3035 FOR_ALL_WINDOWS_FROM_FRONT(w) {
3036 if ((w->flags & WF_WHITE_BORDER) && --w->white_border_timer == 0) {
3037 CLRBITS(w->flags, WF_WHITE_BORDER);
3038 w->SetDirty();
3039 }
3040 }
3041
3042 DrawDirtyBlocks();
3043
3044 FOR_ALL_WINDOWS_FROM_BACK(w) {
3045 /* Update viewport only if window is not shaded. */
3046 if (w->viewport != NULL && !w->IsShaded()) UpdateViewportPosition(w);
3047 }
3048 NetworkDrawChatMessage();
3049 /* Redraw mouse cursor in case it was hidden */
3050 DrawMouseCursor();
3051 }
3052
3058 void SetWindowDirty(WindowClass cls, WindowNumber number)
3059 {
3060 const Window *w;
3061 FOR_ALL_WINDOWS_FROM_BACK(w) {
3062 if (w->window_class == cls && w->window_number == number) w->SetDirty();
3063 }
3064 }
3065
3072 void SetWindowWidgetDirty(WindowClass cls, WindowNumber number, byte widget_index)
3073 {
3074 const Window *w;
3075 FOR_ALL_WINDOWS_FROM_BACK(w) {
3076 if (w->window_class == cls && w->window_number == number) {
3077 w->SetWidgetDirty(widget_index);
3078 }
3079 }
3080 }
3081
3086 void SetWindowClassesDirty(WindowClass cls)
3087 {
3088 Window *w;
3089 FOR_ALL_WINDOWS_FROM_BACK(w) {
3090 if (w->window_class == cls) w->SetDirty();
3091 }
3092 }
3093
3099 void Window::InvalidateData(int data, bool gui_scope)
3100 {
3101 this->SetDirty();
3102 if (!gui_scope) {
3103 /* Schedule GUI-scope invalidation for next redraw. */
3104 *this->scheduled_invalidation_data.Append() = data;
3105 }
3106 this->OnInvalidateData(data, gui_scope);
3107 }
3108
3112 void Window::ProcessScheduledInvalidations()
3113 {
3114 for (int *data = this->scheduled_invalidation_data.Begin(); this->window_class != WC_INVALID && data != this->scheduled_invalidation_data.End(); data++) {
3115 this->OnInvalidateData(*data, true);
3116 }
3117 this->scheduled_invalidation_data.Clear();
3118 }
3119
3123 void Window::ProcessHighlightedInvalidations()
3124 {
3125 if ((this->flags & WF_HIGHLIGHTED) == 0) return;
3126
3127 for (uint i = 0; i < this->nested_array_size; i++) {
3128 if (this->IsWidgetHighlighted(i)) this->SetWidgetDirty(i);
3129 }
3130 }
3131
3158 void InvalidateWindowData(WindowClass cls, WindowNumber number, int data, bool gui_scope)
3159 {
3160 Window *w;
3161 FOR_ALL_WINDOWS_FROM_BACK(w) {
3162 if (w->window_class == cls && w->window_number == number) {
3163 w->InvalidateData(data, gui_scope);
3164 }
3165 }
3166 }
3167
3176 void InvalidateWindowClassesData(WindowClass cls, int data, bool gui_scope)
3177 {
3178 Window *w;
3179
3180 FOR_ALL_WINDOWS_FROM_BACK(w) {
3181 if (w->window_class == cls) {
3182 w->InvalidateData(data, gui_scope);
3183 }
3184 }
3185 }
3186
3190 void CallWindowTickEvent()
3191 {
3192 Window *w;
3193 FOR_ALL_WINDOWS_FROM_FRONT(w) {
3194 w->OnTick();
3195 }
3196 }
3197
3204 void DeleteNonVitalWindows()
3205 {
3206 Window *w;
3207
3208 restart_search:
3209 /* When we find the window to delete, we need to restart the search
3210 * as deleting this window could cascade in deleting (many) others
3211 * anywhere in the z-array */
3212 FOR_ALL_WINDOWS_FROM_BACK(w) {
3213 if (w->window_class != WC_MAIN_WINDOW &&
3214 w->window_class != WC_SELECT_GAME &&
3215 w->window_class != WC_MAIN_TOOLBAR &&
3216 w->window_class != WC_STATUS_BAR &&
3217 w->window_class != WC_TOOLTIPS &&
3218 (w->flags & WF_STICKY) == 0) { // do not delete windows which are 'pinned'
3219
3220 delete w;
3221 goto restart_search;
3222 }
3223 }
3224 }
3225
3233 void DeleteAllNonVitalWindows()
3234 {
3235 Window *w;
3236
3237 /* Delete every window except for stickied ones, then sticky ones as well */
3238 DeleteNonVitalWindows();
3239
3240 restart_search:
3241 /* When we find the window to delete, we need to restart the search
3242 * as deleting this window could cascade in deleting (many) others
3243 * anywhere in the z-array */
3244 FOR_ALL_WINDOWS_FROM_BACK(w) {
3245 if (w->flags & WF_STICKY) {
3246 delete w;
3247 goto restart_search;
3248 }
3249 }
3250 }
3251
3256 void DeleteConstructionWindows()
3257 {
3258 Window *w;
3259
3260 restart_search:
3261 /* When we find the window to delete, we need to restart the search
3262 * as deleting this window could cascade in deleting (many) others
3263 * anywhere in the z-array */
3264 FOR_ALL_WINDOWS_FROM_BACK(w) {
3265 if (w->window_desc->flags & WDF_CONSTRUCTION) {
3266 delete w;
3267 goto restart_search;
3268 }
3269 }
3270
3271 FOR_ALL_WINDOWS_FROM_BACK(w) w->SetDirty();
3272 }
3273
3275 void HideVitalWindows()
3276 {
3277 DeleteWindowById(WC_MAIN_TOOLBAR, 0);
3278 DeleteWindowById(WC_STATUS_BAR, 0);
3279 }
3280
3282 void ReInitAllWindows()
3283 {
3284 NWidgetLeaf::InvalidateDimensionCache(); // Reset cached sizes of several widgets.
3285 NWidgetScrollbar::InvalidateDimensionCache();
3286
3287 extern void InitDepotWindowBlockSizes();
3288 InitDepotWindowBlockSizes();
3289
3290 Window *w;
3291 FOR_ALL_WINDOWS_FROM_BACK(w) {
3292 w->ReInit();
3293 }
3294 #ifdef ENABLE_NETWORK
3295 void NetworkReInitChatBoxSize();
3296 NetworkReInitChatBoxSize();
3297 #endif
3298
3299 /* Make sure essential parts of all windows are visible */
3300 RelocateAllWindows(_cur_resolution.width, _cur_resolution.height);
3301 MarkWholeScreenDirty();
3302 }
3303
3311 static int PositionWindow(Window *w, WindowClass clss, int setting)
3312 {
3313 if (w == NULL || w->window_class != clss) {
3314 w = FindWindowById(clss, 0);
3315 }
3316 if (w == NULL) return 0;
3317
3318 int old_left = w->left;
3319 switch (setting) {
3320 case 1: w->left = (_screen.width - w->width) / 2; break;
3321 case 2: w->left = _screen.width - w->width; break;
3322 default: w->left = 0; break;
3323 }
3324 if (w->viewport != NULL) w->viewport->left += w->left - old_left;
3325 SetDirtyBlocks(0, w->top, _screen.width, w->top + w->height); // invalidate the whole row
3326 return w->left;
3327 }
3328
3334 int PositionMainToolbar(Window *w)
3335 {
3336 DEBUG(misc, 5, "Repositioning Main Toolbar...");
3337 return PositionWindow(w, WC_MAIN_TOOLBAR, _settings_client.gui.toolbar_pos);
3338 }
3339
3345 int PositionStatusbar(Window *w)
3346 {
3347 DEBUG(misc, 5, "Repositioning statusbar...");
3348 return PositionWindow(w, WC_STATUS_BAR, _settings_client.gui.statusbar_pos);
3349 }
3350
3356 int PositionNewsMessage(Window *w)
3357 {
3358 DEBUG(misc, 5, "Repositioning news message...");
3359 return PositionWindow(w, WC_NEWS_WINDOW, _settings_client.gui.statusbar_pos);
3360 }
3361
3367 int PositionNetworkChatWindow(Window *w)
3368 {
3369 DEBUG(misc, 5, "Repositioning network chat window...");
3370 return PositionWindow(w, WC_SEND_NETWORK_MSG, _settings_client.gui.statusbar_pos);
3371 }
3372
3373
3379 void ChangeVehicleViewports(VehicleID from_index, VehicleID to_index)
3380 {
3381 Window *w;
3382 FOR_ALL_WINDOWS_FROM_BACK(w) {
3383 if (w->viewport != NULL && w->viewport->follow_vehicle == from_index) {
3384 w->viewport->follow_vehicle = to_index;
3385 w->SetDirty();
3386 }
3387 }
3388 }
3389
3390
3396 void RelocateAllWindows(int neww, int newh)
3397 {
3398 Window *w;
3399
3400 FOR_ALL_WINDOWS_FROM_BACK(w) {
3401 int left, top;
3402 /* XXX - this probably needs something more sane. For example specifying
3403 * in a 'backup'-desc that the window should always be centered. */
3404 switch (w->window_class) {
3405 case WC_MAIN_WINDOW:
3406 case WC_BOOTSTRAP:
3407 ResizeWindow(w, neww, newh);
3408 continue;
3409
3410 case WC_MAIN_TOOLBAR:
3411 ResizeWindow(w, min(neww, _toolbar_width) - w->width, 0, false);
3412
3413 top = w->top;
3414 left = PositionMainToolbar(w); // changes toolbar orientation
3415 break;
3416
3417 case WC_NEWS_WINDOW:
3418 top = newh - w->height;
3419 left = PositionNewsMessage(w);
3420 break;
3421
3422 case WC_STATUS_BAR:
3423 ResizeWindow(w, min(neww, _toolbar_width) - w->width, 0, false);
3424
3425 top = newh - w->height;
3426 left = PositionStatusbar(w);
3427 break;
3428
3429 case WC_SEND_NETWORK_MSG:
3430 ResizeWindow(w, min(neww, _toolbar_width) - w->width, 0, false);
3431
3432 top = newh - w->height - FindWindowById(WC_STATUS_BAR, 0)->height;
3433 left = PositionNetworkChatWindow(w);
3434 break;
3435
3436 case WC_CONSOLE:
3437 IConsoleResize(w);
3438 continue;
3439
3440 default: {
3441 if (w->flags & WF_CENTERED) {
3442 top = (newh - w->height) >> 1;
3443 left = (neww - w->width) >> 1;
3444 break;
3445 }
3446
3447 left = w->left;
3448 if (left + (w->width >> 1) >= neww) left = neww - w->width;
3449 if (left < 0) left = 0;
3450
3451 top = w->top;
3452 if (top + (w->height >> 1) >= newh) top = newh - w->height;
3453 break;
3454 }
3455 }
3456
3457 EnsureVisibleCaption(w, left, top);
3458 }
3459 }
3460
3466 PickerWindowBase::~PickerWindowBase()
3467 {
3468 this->window_class = WC_INVALID; // stop the ancestor from freeing the already (to be) child
3469 ResetObjectToPlace();
3470 }