<ClCompile Include="..\src\error_gui.cpp" />

    <ClCompile Include="..\src\error_gui.cpp">

      <Filter>GUI Source Code</Filter>

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				RelativePath=".\..\src\error_gui.cpp"

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			<File

				RelativePath=".\..\src\error_gui.cpp"

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			<File

error_gui.cpp

/* $Id$ */

/*

 * This file is part of OpenTTD.

 * 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.

 * 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.

 * 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/>.

 */

/** @file error_gui.cpp GUI related to errors. */

#include "stdafx.h"

#include "landscape.h"

#include "newgrf_text.h"

#include "gui.h"

#include "viewport_func.h"

#include "gfx_func.h"

#include "string_func.h"

#include "company_base.h"

#include "company_manager_face.h"

#include "strings_func.h"

#include "zoom_func.h"

#include "window_func.h"

#include "console_func.h"

#include "window_gui.h"

#include "table/strings.h"

/** Widgets of the error message windows */

enum ErrorMessageWidgets {

	EMW_CAPTION,

	EMW_FACE,

	EMW_MESSAGE,

};

static const NWidgetPart _nested_errmsg_widgets[] = {

	NWidget(NWID_HORIZONTAL),

		NWidget(WWT_CLOSEBOX, COLOUR_RED),

		NWidget(WWT_CAPTION, COLOUR_RED, EMW_CAPTION), SetDataTip(STR_ERROR_MESSAGE_CAPTION, STR_NULL),

	EndContainer(),

	NWidget(WWT_PANEL, COLOUR_RED),

		NWidget(WWT_EMPTY, COLOUR_RED, EMW_MESSAGE), SetPadding(0, 2, 0, 2), SetMinimalSize(236, 32),

	EndContainer(),

};

static const WindowDesc _errmsg_desc(

	WDP_MANUAL, 0, 0,

	WC_ERRMSG, WC_NONE,

	0,

	_nested_errmsg_widgets, lengthof(_nested_errmsg_widgets)

);

static const NWidgetPart _nested_errmsg_face_widgets[] = {

	NWidget(NWID_HORIZONTAL),

		NWidget(WWT_CLOSEBOX, COLOUR_RED),

		NWidget(WWT_CAPTION, COLOUR_RED, EMW_CAPTION), SetDataTip(STR_ERROR_MESSAGE_CAPTION_OTHER_COMPANY, STR_NULL),

	EndContainer(),

	NWidget(WWT_PANEL, COLOUR_RED),

		NWidget(NWID_HORIZONTAL), SetPIP(2, 1, 2),

			NWidget(WWT_EMPTY, COLOUR_RED, EMW_FACE), SetMinimalSize(92, 119), SetFill(0, 1), SetPadding(2, 0, 1, 0),

			NWidget(WWT_EMPTY, COLOUR_RED, EMW_MESSAGE), SetFill(0, 1), SetMinimalSize(238, 123),

		EndContainer(),

	EndContainer(),

};

static const WindowDesc _errmsg_face_desc(

	WDP_MANUAL, 0, 0,

	WC_ERRMSG, WC_NONE,

	0,

	_nested_errmsg_face_widgets, lengthof(_nested_errmsg_face_widgets)

);

/** Window class for displaying an error message window. */

struct ErrmsgWindow : public Window {

private:

	uint duration;                  ///< Length of display of the message. 0 means forever,

	uint64 decode_params[20];       ///< Parameters of the message strings.

	uint textref_stack_size;        ///< Number of uint32 values to put on the #TextRefStack for the error message.

	uint32 textref_stack[16];       ///< Values to put on the #TextRefStack for the error message.

	StringID summary_msg;           ///< General error message showed in first line. Must be valid.

	StringID detailed_msg;          ///< Detailed error message showed in second line. Can be #INVALID_STRING_ID.

	uint height_summary;            ///< Height of the #summary_msg string in pixels in the #EMW_MESSAGE widget.

	uint height_detailed;           ///< Height of the #detailed_msg string in pixels in the #EMW_MESSAGE widget.

	Point position;                 ///< Position of the error message window.

	CompanyID face;                 ///< Company belonging to the face being shown. #INVALID_COMPANY if no face present.

public:

	ErrmsgWindow(Point pt, StringID summary_msg, StringID detailed_msg, bool no_timeout, uint textref_stack_size, const uint32 *textref_stack) : Window()

	{

		this->position = pt;

		this->duration = no_timeout ? 0 : _settings_client.gui.errmsg_duration;

		CopyOutDParam(this->decode_params, 0, lengthof(this->decode_params));

		this->summary_msg  = summary_msg;

		this->detailed_msg = detailed_msg;

		this->textref_stack_size = textref_stack_size;

		if (textref_stack_size > 0) {

			MemCpyT(this->textref_stack, textref_stack, textref_stack_size);

		}

		CompanyID company = (CompanyID)GetDParamX(this->decode_params, 2);

		this->face = (this->detailed_msg == STR_ERROR_OWNED_BY && company < MAX_COMPANIES) ? company : INVALID_COMPANY;

		const WindowDesc *desc = (face == INVALID_COMPANY) ? &_errmsg_desc : &_errmsg_face_desc;

		assert(summary_msg != INVALID_STRING_ID);

		this->InitNested(desc);

	}

	virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)

	{

		if (widget != EMW_MESSAGE) return;

		CopyInDParam(0, this->decode_params, lengthof(this->decode_params));

		if (this->textref_stack_size > 0) StartTextRefStackUsage(this->textref_stack_size, this->textref_stack);

		int text_width = max(0, (int)size->width - WD_FRAMETEXT_LEFT - WD_FRAMETEXT_RIGHT);

		this->height_summary  = GetStringHeight(this->summary_msg, text_width);

		this->height_detailed = (this->detailed_msg == INVALID_STRING_ID) ? 0 : GetStringHeight(this->detailed_msg, text_width);

		if (this->textref_stack_size > 0) StopTextRefStackUsage();

		uint panel_height = WD_FRAMERECT_TOP + this->height_summary + WD_FRAMERECT_BOTTOM;

		if (this->detailed_msg != INVALID_STRING_ID) panel_height += this->height_detailed + WD_PAR_VSEP_WIDE;

		size->height = max(size->height, panel_height);

	}

	virtual Point OnInitialPosition(const WindowDesc *desc, int16 sm_width, int16 sm_height, int window_number)

	{

		/* Position (0, 0) given, center the window. */

		if (this->position.x == 0 && this->position.y == 0) {

			Point pt = {(_screen.width - sm_width) >> 1, (_screen.height - sm_height) >> 1};

			return pt;

		}

		/* Find the free screen space between the main toolbar at the top, and the statusbar at the bottom.

		 * Add a fixed distance 20 to make it less cluttered.

		 */

		int scr_top = GetMainViewTop() + 20;

		int scr_bot = GetMainViewBottom() - 20;

		Point pt = RemapCoords2(this->position.x, this->position.y);

		const ViewPort *vp = FindWindowById(WC_MAIN_WINDOW, 0)->viewport;

		if (this->face == INVALID_COMPANY) {

			/* move x pos to opposite corner */

			pt.x = UnScaleByZoom(pt.x - vp->virtual_left, vp->zoom) + vp->left;

			pt.x = (pt.x < (_screen.width >> 1)) ? _screen.width - sm_width - 20 : 20; // Stay 20 pixels away from the edge of the screen.

			/* move y pos to opposite corner */

			pt.y = UnScaleByZoom(pt.y - vp->virtual_top, vp->zoom) + vp->top;

			pt.y = (pt.y < (_screen.height >> 1)) ? scr_bot - sm_height : scr_top;

		} else {

			pt.x = Clamp(UnScaleByZoom(pt.x - vp->virtual_left, vp->zoom) + vp->left - (sm_width / 2),  0, _screen.width  - sm_width);

			pt.y = Clamp(UnScaleByZoom(pt.y - vp->virtual_top,  vp->zoom) + vp->top  - (sm_height / 2), scr_top, scr_bot - sm_height);

		}

		return pt;

	}

	/**

	 * Some data on this window has become invalid.

	 * @param data Information about the changed data.

	 * @param gui_scope Whether the call is done from GUI scope. You may not do everything when not in GUI scope. See #InvalidateWindowData() for details.

	 */

	virtual void OnInvalidateData(int data = 0, bool gui_scope = true)

	{

		/* If company gets shut down, while displaying an error about it, remove the error message. */

		if (this->face != INVALID_COMPANY && !Company::IsValidID(this->face)) delete this;

	}

	virtual void SetStringParameters(int widget) const

	{

		if (widget == EMW_CAPTION) CopyInDParam(0, this->decode_params, lengthof(this->decode_params));

	}

	virtual void DrawWidget(const Rect &r, int widget) const

	{

		switch (widget) {

			case EMW_FACE: {

				const Company *c = Company::Get(this->face);

				DrawCompanyManagerFace(c->face, c->colour, r.left, r.top);

				break;

			}

			case EMW_MESSAGE:

				CopyInDParam(0, this->decode_params, lengthof(this->decode_params));

				if (this->textref_stack_size > 0) StartTextRefStackUsage(this->textref_stack_size, this->textref_stack);

				if (this->detailed_msg == INVALID_STRING_ID) {

					DrawStringMultiLine(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, r.top + WD_FRAMERECT_TOP, r.bottom - WD_FRAMERECT_BOTTOM,

							this->summary_msg, TC_FROMSTRING, SA_CENTER);

				} else {

					int extra = (r.bottom - r.top + 1 - this->height_summary - this->height_detailed - WD_PAR_VSEP_WIDE) / 2;

					/* Note: NewGRF supplied error message often do not start with a colour code, so default to white. */

					int top = r.top + WD_FRAMERECT_TOP;

					int bottom = top + this->height_summary + extra;

					DrawStringMultiLine(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, top, bottom, this->summary_msg, TC_WHITE, SA_CENTER);

					bottom = r.bottom - WD_FRAMERECT_BOTTOM;

					top = bottom - this->height_detailed - extra;

					DrawStringMultiLine(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, top, bottom, this->detailed_msg, TC_WHITE, SA_CENTER);

				}

				if (this->textref_stack_size > 0) StopTextRefStackUsage();

				break;

			default:

				break;

		}

	}

	virtual void OnMouseLoop()

	{

		/* Disallow closing the window too easily, if timeout is disabled */

		if (_right_button_down && this->duration != 0) delete this;

	}

	virtual void OnHundredthTick()

	{

		/* Timeout enabled? */

		if (this->duration != 0) {

			this->duration--;

			if (this->duration == 0) delete this;

		}

	}

	~ErrmsgWindow()

	{

		SetRedErrorSquare(INVALID_TILE);

	}

	virtual EventState OnKeyPress(uint16 key, uint16 keycode)

	{

		if (keycode != WKC_SPACE) return ES_NOT_HANDLED;

		delete this;

		return ES_HANDLED;

	}

};

/**

 * Display an error message in a window.

 * @param summary_msg  General error message showed in first line. Must be valid.

 * @param detailed_msg Detailed error message showed in second line. Can be INVALID_STRING_ID.

 * @param wl           Message severity.

 * @param x            World X position (TileVirtX) of the error location. Set both x and y to 0 to just center the message when there is no related error tile.

 * @param y            World Y position (TileVirtY) of the error location. Set both x and y to 0 to just center the message when there is no related error tile.

 * @param textref_stack_size Number of uint32 values to put on the #TextRefStack for the error message; 0 if the #TextRefStack shall not be used.

 * @param textref_stack Values to put on the #TextRefStack.

 */

void ShowErrorMessage(StringID summary_msg, StringID detailed_msg, WarningLevel wl, int x, int y, uint textref_stack_size, const uint32 *textref_stack)

{

	assert(textref_stack_size == 0 || textref_stack != NULL);

	if (summary_msg == STR_NULL) summary_msg = STR_EMPTY;

	if (wl != WL_INFO) {

		/* Print message to console */

		char buf[DRAW_STRING_BUFFER];

		if (textref_stack_size > 0) StartTextRefStackUsage(textref_stack_size, textref_stack);

		char *b = GetString(buf, summary_msg, lastof(buf));

		if (detailed_msg != INVALID_STRING_ID) {

			b += seprintf(b, lastof(buf), " ");

			GetString(b, detailed_msg, lastof(buf));

		}

		if (textref_stack_size > 0) StopTextRefStackUsage();

		switch (wl) {

			case WL_WARNING: IConsolePrint(CC_WARNING, buf); break;

			default:         IConsoleError(buf); break;

		}

	}

	bool no_timeout = wl == WL_CRITICAL;

	if (_settings_client.gui.errmsg_duration == 0 && !no_timeout) return;

	DeleteWindowById(WC_ERRMSG, 0);

	Point pt = {x, y};

	new ErrmsgWindow(pt, summary_msg, detailed_msg, no_timeout, textref_stack_size, textref_stack);

}