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/* $Id$ */

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/** @file transparency_gui.cpp The transparency GUI. */

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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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class TransparenciesWindow : public Window

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{

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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 company 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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public:

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	TransparenciesWindow(const WindowDesc *desc, int window_number) : Window(desc, window_number)

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	{

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		this->FindWindowPlacementAndResize(desc);

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	}

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	virtual void OnPaint()

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	{

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

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		}

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		this->DrawWidgets();

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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, this->widget[TTW_WIDGET_SIGNS + i].left + 1, this->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 = TTW_WIDGET_SIGNS; i <= TTW_WIDGET_CATENARY; i++) {

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			const Widget *wi = &this->widget[i];

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			DrawFrameRect(wi->left + 1, 38, wi->right - 1, 46, COLOUR_PALE_GREEN, HasBit(_invisibility_opt, i - TTW_WIDGET_SIGNS) ? FR_LOWERED : FR_NONE);

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		}

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	}

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	virtual void OnClick(Point pt, int widget)

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	{

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		if (widget >= TTW_WIDGET_SIGNS && 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)(widget - TTW_WIDGET_SIGNS));

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				this->SetDirty();

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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)(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 (widget == TTW_BUTTONS) {

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			uint x = 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) return;

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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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				this->InvalidateWidget(TTW_BUTTONS);

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			}

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		}

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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,  COLOUR_DARK_GREEN,   0,  10,   0,  13, STR_00C5,                 STR_018B_CLOSE_WINDOW},

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

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

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/* transparency widgets:

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

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

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

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

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

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

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

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

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

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

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{    WWT_PANEL,   RESIZE_NONE,  COLOUR_DARK_GREEN,   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, 94, 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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};

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void ShowTransparencyToolbar(void)

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{

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	AllocateWindowDescFront<TransparenciesWindow>(&_transparency_desc, 0);

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}