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/* $Id$ */

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#include "stdafx.h"

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#include "openttd.h"

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#include "gui.h"

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#include "window_gui.h"

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#include "variables.h"

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#include "transparency.h"

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#include "sound_func.h"

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#include "table/sprites.h"

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#include "table/strings.h"

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TransparencyOptionBits _transparency_opt;

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TransparencyOptionBits _transparency_lock;

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TransparencyOptionBits _invisibility_opt;

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enum TransparencyToolbarWidgets{

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	TTW_WIDGET_SIGNS = 3,    ///< Make signs background transparent

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	TTW_WIDGET_TREES,        ///< Make trees transparent

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	TTW_WIDGET_HOUSES,       ///< Make houses transparent

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	TTW_WIDGET_INDUSTRIES,   ///< Make Industries transparent

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	TTW_WIDGET_BUILDINGS,    ///< Make player buildings and structures transparent

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	TTW_WIDGET_BRIDGES,      ///< Make bridges transparent

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	TTW_WIDGET_STRUCTURES,   ///< Make unmovable structures transparent

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	TTW_WIDGET_CATENARY,     ///< Make catenary transparent

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	TTW_WIDGET_LOADING,      ///< Make loading indicators transparent

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	TTW_WIDGET_END,          ///< End of toggle buttons

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	/* Panel with buttons for invisibility */

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	TTW_BUTTONS = 12,        ///< Panel with 'invisibility' buttons

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};

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static void TransparencyToolbWndProc(Window *w, WindowEvent *e)

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{

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	switch (e->event) {

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		case WE_PAINT:

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			/* must be sure that the widgets show the transparency variable changes

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			 * also when we use shortcuts */

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			for (uint i = TTW_WIDGET_SIGNS; i < TTW_WIDGET_END; i++) {

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				w->SetWidgetLoweredState(i, IsTransparencySet((TransparencyOption)(i - TTW_WIDGET_SIGNS)));

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			}

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			DrawWindowWidgets(w);

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			for (uint i = TO_SIGNS; i < TO_END; i++) {

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				if (HasBit(_transparency_lock, i)) DrawSprite(SPR_LOCK, PAL_NONE, w->widget[TTW_WIDGET_SIGNS + i].left + 1, w->widget[TTW_WIDGET_SIGNS + i].top + 1);

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			}

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			/* Do not draw button for invisible loading indicators */

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			for (uint i = 0; i < 8; i++) {

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				if (i < TTW_WIDGET_BRIDGES - TTW_WIDGET_SIGNS) {

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					DrawFrameRect(i * 22, 38, i * 22 + 19, 46, true, HasBit(_invisibility_opt, i) ? FR_LOWERED : FR_NONE);

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				} else if (i == TTW_WIDGET_BRIDGES - TTW_WIDGET_SIGNS) {

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					DrawFrameRect(i * 22, 38, i * 22 + 41, 46, true, HasBit(_invisibility_opt, i) ? FR_LOWERED : FR_NONE);

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				} else { // i > TTW_WIDGET_BRIDGES - TTW_WIDGET_SIGNS

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					DrawFrameRect((i + 1) * 22, 38, (i + 1) * 22 + 19, 46, true, HasBit(_invisibility_opt, i) ? FR_LOWERED : FR_NONE);

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				}

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			}

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			break;

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		case WE_CLICK:

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			if (e->we.click.widget >= TTW_WIDGET_SIGNS && e->we.click.widget < TTW_WIDGET_END) {

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				if (_ctrl_pressed) {

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					/* toggle the bit of the transparencies lock variable */

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					ToggleTransparencyLock((TransparencyOption)(e->we.click.widget - TTW_WIDGET_SIGNS));

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					SetWindowDirty(w);

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				} else {

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					/* toggle the bit of the transparencies variable and play a sound */

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					ToggleTransparency((TransparencyOption)(e->we.click.widget - TTW_WIDGET_SIGNS));

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					SndPlayFx(SND_15_BEEP);

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					MarkWholeScreenDirty();

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				}

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			} else if (e->we.click.widget == TTW_BUTTONS) {

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				uint x = e->we.click.pt.x / 22;

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				if (x > TTW_WIDGET_BRIDGES - TTW_WIDGET_SIGNS) x--;

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				if (x > TTW_WIDGET_CATENARY - TTW_WIDGET_SIGNS) break;

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				ToggleInvisibility((TransparencyOption)x);

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				SndPlayFx(SND_15_BEEP);

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				/* Redraw whole screen only if transparency is set */

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				if (IsTransparencySet((TransparencyOption)x)) {

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					MarkWholeScreenDirty();

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				} else {

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					w->InvalidateWidget(TTW_BUTTONS);

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				}

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			}

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			break;

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	}

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}

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static const Widget _transparency_widgets[] = {

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{ WWT_CLOSEBOX,   RESIZE_NONE,  7,   0,  10,   0,  13, STR_00C5,                 STR_018B_CLOSE_WINDOW},

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{  WWT_CAPTION,   RESIZE_NONE,  7,  11, 206,   0,  13, STR_TRANSPARENCY_TOOLB,   STR_018C_WINDOW_TITLE_DRAG_THIS},

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{WWT_STICKYBOX,   RESIZE_NONE,  7, 207, 218,   0,  13, STR_NULL,                 STR_STICKY_BUTTON},

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/* transparency widgets:

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 * transparent signs, trees, houses, industries, player's buildings, bridges, unmovable structures, catenary and loading indicators */

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{   WWT_IMGBTN,   RESIZE_NONE,  7,   0,  21,  14,  35, SPR_IMG_SIGN,         STR_TRANSPARENT_SIGNS_DESC},

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{   WWT_IMGBTN,   RESIZE_NONE,  7,  22,  43,  14,  35, SPR_IMG_PLANTTREES,   STR_TRANSPARENT_TREES_DESC},

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{   WWT_IMGBTN,   RESIZE_NONE,  7,  44,  65,  14,  35, SPR_IMG_TOWN,         STR_TRANSPARENT_HOUSES_DESC},

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{   WWT_IMGBTN,   RESIZE_NONE,  7,  66,  87,  14,  35, SPR_IMG_INDUSTRY,     STR_TRANSPARENT_INDUSTRIES_DESC},

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{   WWT_IMGBTN,   RESIZE_NONE,  7,  88, 109,  14,  35, SPR_IMG_COMPANY_LIST, STR_TRANSPARENT_BUILDINGS_DESC},

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{   WWT_IMGBTN,   RESIZE_NONE,  7, 110, 152,  14,  35, SPR_IMG_BRIDGE,       STR_TRANSPARENT_BRIDGES_DESC},

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{   WWT_IMGBTN,   RESIZE_NONE,  7, 153, 174,  14,  35, SPR_IMG_TRANSMITTER,  STR_TRANSPARENT_STRUCTURES_DESC},

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{   WWT_IMGBTN,   RESIZE_NONE,  7, 175, 196,  14,  35, SPR_BUILD_X_ELRAIL,   STR_TRANSPARENT_CATENARY_DESC},

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{   WWT_IMGBTN,   RESIZE_NONE,  7, 197, 218,  14,  35, SPR_IMG_TRAINLIST,    STR_TRANSPARENT_LOADING_DESC},

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{    WWT_PANEL,   RESIZE_NONE,  7,   0, 218,  36,  48, 0x0,                  STR_TRANSPARENT_INVISIBLE_DESC},

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{   WIDGETS_END},

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};

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static const WindowDesc _transparency_desc = {

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	WDP_ALIGN_TBR, 58+36, 219, 49, 219, 49,

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	WC_TRANSPARENCY_TOOLBAR, WC_NONE,

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	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_STICKY_BUTTON,

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	_transparency_widgets,

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	TransparencyToolbWndProc

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};

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void ShowTransparencyToolbar(void)

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{

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	AllocateWindowDescFront(&_transparency_desc, 0);

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}