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/* $Id$ */

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#include "stdafx.h"

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#include "openttd.h"

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#include "table/sprites.h"

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#include "table/strings.h"

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#include "functions.h"

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#include "window.h"

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#include "gui.h"

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#include "viewport.h"

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#include "gfx.h"

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#include "sound.h"

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#include "variables.h"

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enum TransparencyToolbarWidgets{

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	/* Widgets not toggled when pressing the X key */

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

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	/* Widgets toggled when pressing the X key */

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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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};

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/** Toggle the bits of the transparencies variable

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 * when clicking on a widget, and play a sound

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 * @param widget been clicked.

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 */

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static void Transparent_Click(byte widget)

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{

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	TOGGLEBIT(_transparent_opt, widget);

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	SndPlayFx(SND_15_BEEP);

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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_STRUCTURES; i++) {

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				SetWindowWidgetLoweredState(w, i, HASBIT(_transparent_opt, i - TTW_WIDGET_SIGNS));

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			}

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			DrawWindowWidgets(w);

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			break;

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		case WE_CLICK:

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

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				Transparent_Click(e->we.click.widget - TTW_WIDGET_SIGNS);

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				MarkWholeScreenDirty();

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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, 162,   0,  13, STR_TRANSPARENCY_TOOLB,   STR_018C_WINDOW_TITLE_DRAG_THIS},

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{WWT_STICKYBOX,   RESIZE_NONE,  7, 163, 174,   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 and unmovable structures */

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{   WWT_IMGBTN,   RESIZE_NONE,  7,   0,  21,  14,  35, SPR_IMG_PLACE_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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{   WIDGETS_END},

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};

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static const WindowDesc _transparency_desc = {

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	WDP_ALIGN_TBR, 58+36, 175, 36,

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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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}