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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2004 The ScummVM project
*
* This program 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; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*/
#include "stdafx.h"
#include "common/str.h"
#include "gui/message.h"
#include "gui/newgui.h"
#include "gui/widget.h"
namespace GUI {
enum {
kOkCmd = 'OK ',
kCancelCmd = 'CNCL'
};
// TODO: The default button should be visibly distinct from the alternate button
MessageDialog::MessageDialog(const String &message, const char *defaultButton, const char *altButton)
: Dialog(30, 20, 260, 124) {
// First, determine the size the dialog needs. For this we have to break
// down the string into lines, and taking the maximum of their widths.
// Using this, and accounting for the space the button(s) need, we can set
// the real size of the dialog
StringList lines;
const char *str = message.c_str();
const char *start = str;
int lineWidth, maxlineWidth = 0;
int lineCount, okButtonPos, cancelButtonPos;
while (*str) {
if (*str == '\n') {
lineWidth = addLine(lines, start, str - start);
if (maxlineWidth < lineWidth)
maxlineWidth = lineWidth;
start = str + 1;
}
++str;
}
// Add the last line
lineWidth = addLine(lines, start, str - start);
if (maxlineWidth < lineWidth)
maxlineWidth = lineWidth;
// Calculate the desired dialog size (maxing out at 300*180 for now)
_w = maxlineWidth + 20;
lineCount = lines.size();
_h = lineCount * kLineHeight + 16;
if (defaultButton || altButton)
_h += 24;
if (_h > 180) {
lineCount = (180 - 34) / kLineHeight;
_h = lineCount * kLineHeight + 34;
}
_x = (320 - _w) / 2;
_y = (200 - _h) / 2;
for (int i = 0; i < lineCount; i++) {
new StaticTextWidget(this, 10, 10 + i * kLineHeight, maxlineWidth, kLineHeight,
lines[i], kTextAlignCenter);
}
// FIXME - allow for multiple buttons, and return in runModal() which one
// was selected.
if (defaultButton && altButton) {
okButtonPos = (_w - (kButtonWidth * 2)) / 2;
cancelButtonPos = ((_w - (kButtonWidth * 2)) / 2) + kButtonWidth + 10;
} else {
okButtonPos = cancelButtonPos = (_w-kButtonWidth) / 2;
}
if (defaultButton)
addButton(okButtonPos, _h - 24, defaultButton, kOkCmd, '\n'); // Confirm dialog
if (altButton)
addButton(cancelButtonPos, _h - 24, altButton, kCancelCmd, '\27'); // Cancel dialog
}
int MessageDialog::addLine(StringList &lines, const char *line, int size) {
int width = 0, maxWidth = 0;
const char *start = line, *pos = line, *end = start + size;
String tmp;
NewGui *gui = &g_gui;
while (pos < end) {
int w = gui->getCharWidth(*pos);
// Check if we exceed the maximum line width, if so, split the line.
// If possible we split at whitespaces.
if (width + w > 280) {
// Scan backward till we find a space or we get back to the start
const char *newPos = pos;
while (newPos > start && !isspace(*newPos))
newPos--;
if (newPos > start)
pos = newPos;
// Add the substring from intervall [start, i-1]
tmp = String(start, pos - start);
lines.push_back(tmp);
// Determine the width of the string, and adjust maxWidth accordingly
width = gui->getStringWidth(tmp);
if (maxWidth < width)
maxWidth = width;
start = pos;
width = 0;
} else {
width += w;
pos++;
}
}
if (maxWidth < width)
maxWidth = width;
if (start < pos) {
tmp = String(start, pos - start);
lines.push_back(tmp);
}
return maxWidth;
}
void MessageDialog::handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {
// FIXME: It's a really bad thing that we use two arbitrary constants
if (cmd == kOkCmd) {
setResult(kMessageOK);
close();
} else if (cmd == kCancelCmd) {
setResult(kMessageCancel);
close();
} else {
Dialog::handleCommand(sender, cmd, data);
}
}
TimedMessageDialog::TimedMessageDialog(const Common::String &message, uint32 duration)
: MessageDialog(message, 0, 0) {
_timer = g_system->get_msecs() + duration;
}
void TimedMessageDialog::handleTickle() {
MessageDialog::handleTickle();
if (g_system->get_msecs() > _timer)
close();
}
} // End of namespace GUI
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