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/* $Id$ */
/*
* 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 "error.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"
#include <list>
/** 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)
);
/** The data of the error message. */
class ErrorMessageData {
protected:
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.
Point position; ///< Position of the error message window.
CompanyID face; ///< Company belonging to the face being shown. #INVALID_COMPANY if no face present.
public:
/**
* Copy the given data into our instace.
* @param data The data to copy.
*/
ErrorMessageData(const ErrorMessageData &data)
{
*this = data;
}
/**
* 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 duration The amount of time to show this error message.
* @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.
*/
ErrorMessageData(StringID summary_msg, StringID detailed_msg, uint duration, int x, int y, uint textref_stack_size, const uint32 *textref_stack) :
duration(duration),
textref_stack_size(textref_stack_size),
summary_msg(summary_msg),
detailed_msg(detailed_msg)
{
this->position.x = x;
this->position.y = y;
CopyOutDParam(this->decode_params, 0, lengthof(this->decode_params));
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;
assert(summary_msg != INVALID_STRING_ID);
}
};
/** Define a queue with errors. */
typedef std::list<ErrorMessageData> ErrorList;
/** The actual queue with errors. */
ErrorList _errors;
/** Window class for displaying an error message window. */
struct ErrmsgWindow : public Window, ErrorMessageData {
private:
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.
public:
ErrmsgWindow(const ErrorMessageData &data) : Window(), ErrorMessageData(data)
{
this->InitNested((this->face == INVALID_COMPANY) ? &_errmsg_desc : &_errmsg_face_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);
if (!_errors.empty()) {
new ErrmsgWindow(_errors.front());
_errors.pop_front();
}
}
virtual EventState OnKeyPress(uint16 key, uint16 keycode)
{
if (keycode != WKC_SPACE) return ES_NOT_HANDLED;
delete this;
return ES_HANDLED;
}
/**
* Check whether the currently shown error message was critical or not.
* @return True iff the message was critical.
*/
bool IsCritical()
{
return this->duration == 0;
}
};
/**
* Clear all errors from the queue.
*/
void ClearErrorMessages()
{
_errors.clear();
}
/**
* 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;
ErrorMessageData data(summary_msg, detailed_msg, no_timeout ? 0 : _settings_client.gui.errmsg_duration, x, y, textref_stack_size, textref_stack);
ErrmsgWindow *w = (ErrmsgWindow*)FindWindowById(WC_ERRMSG, 0);
if (w != NULL && w->IsCritical()) {
/* A critical error is currently shown. */
if (wl == WL_CRITICAL) {
/* Push another critical error in the queue of errors,
* but do not put other errors in the queue. */
_errors.push_back(data);
}
} else {
/* Nothing or a non-critical error was shown. */
delete w;
new ErrmsgWindow(data);
}
}
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