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kvirc/src/kvirc/kernel/kvi_theme.cpp

300 lines
8.4 KiB

//=============================================================================
//
// File : kvi_themeinfo.cpp
// Creation date : Mon Jan 08 2007 03:23:00 CEST by Szymon Stefanek
//
// This file is part of the KVirc irc client distribution
// Copyright (C) 2007 Szymon Stefanek (pragma at kvirc dot net)
//
// 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 opinion) 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. ,51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=============================================================================
#define __KVIRC__
#include "kvi_theme.h"
#include "kvi_fileutils.h"
#include "kvi_config.h"
#include "kvi_locale.h"
#include "kvi_miscutils.h"
#include "kvi_sourcesdate.h"
#include <tqimage.h>
#define KVI_THEME_SMALL_SCREENSHOT_NAME "screenshot_small.png"
#define KVI_THEME_MEDIUM_SCREENSHOT_NAME "screenshot_medium.png"
#define KVI_THEME_LARGE_SCREENSHOT_NAME "screenshot.png"
#ifdef COMPILE_USE_QT4
#define TQIMAGE_SCALE_MIN TQt::KeepAspectRatio
#else
#define TQIMAGE_SCALE_MIN TQ_ScaleMin
#endif
KviThemeInfo::KviThemeInfo()
: KviHeapObject()
{
}
KviThemeInfo::~KviThemeInfo()
{
}
bool KviThemeInfo::load(const TQString &szThemeFileName)
{
if(!KviFileUtils::fileExists(szThemeFileName))
{
m_szLastError = __tr2qs("The theme information file does not exist");
return false;
}
KviConfig cfg(szThemeFileName,KviConfig::Read);
cfg.setGroup(KVI_THEMEINFO_CONFIG_GROUP);
m_szThemeEngineVersion = cfg.readTQStringEntry("ThemeEngineVersion","1.0.0");
if(KviMiscUtils::compareVersions(m_szThemeEngineVersion,KVI_CURRENT_THEME_ENGINE_VERSION) < 0)
{
KviTQString::sprintf(m_szLastError,__tr2qs("This KVIrc executable is too old for this theme (minimum theme engine version required is %Q while this theme engine has version %s)"),&m_szThemeEngineVersion,KVI_CURRENT_THEME_ENGINE_VERSION);
return false; // incompatible theme engine (will not work)
}
// mandatory fields
m_szName = cfg.readTQStringEntry("Name","");
if(m_szName.isEmpty())
{
m_szLastError = __tr2qs("Theme information file is not valid");
return false;
}
// optional fields
m_szVersion = cfg.readTQStringEntry("Version","");
if(m_szVersion.isEmpty())
m_szVersion = "?.?.?";
m_szAuthor = cfg.readTQStringEntry("Author","");
TQString szUnknown = __tr2qs("Unknown");
if(m_szAuthor.isEmpty())
m_szAuthor = szUnknown;
m_szDescription = cfg.readTQStringEntry("Description","");
m_szDate = cfg.readTQStringEntry("Date","");
if(m_szDate.isEmpty())
m_szDate = szUnknown;
m_szApplication = cfg.readTQStringEntry("Application","");
if(m_szApplication.isEmpty())
m_szApplication = szUnknown;
return true;
}
bool KviThemeInfo::save(const TQString &szThemeFileName)
{
KviConfig inf(szThemeFileName,KviConfig::Write);
inf.clear();
inf.setGroup(KVI_THEMEINFO_CONFIG_GROUP);
inf.writeEntry("Name",m_szName);
inf.writeEntry("Version",m_szVersion);
inf.writeEntry("Author",m_szAuthor);
inf.writeEntry("Description",m_szDescription);
inf.writeEntry("Date",m_szDate);
inf.writeEntry("ThemeEngineVersion",KVI_CURRENT_THEME_ENGINE_VERSION);
inf.writeEntry("Application","KVIrc " KVI_VERSION "." KVI_SOURCES_DATE);
return true;
}
bool KviThemeInfo::loadFromDirectory(const TQString &szThemeDirectory,bool bIgnoreThemeData)
{
TQString szD = szThemeDirectory;
szD.append(KVI_PATH_SEPARATOR_CHAR);
szD.append(KVI_THEMEINFO_FILE_NAME);
if(!load(szD))
return false; // loading failed for some reason
m_szAbsoluteDirectory = szThemeDirectory;
if(bIgnoreThemeData)
return true; // assume success
// check if themedata file exists
szD = szThemeDirectory;
szD.append(KVI_PATH_SEPARATOR_CHAR);
szD.append(KVI_THEMEDATA_FILE_NAME);
return KviFileUtils::fileExists(szD);
}
TQString KviThemeInfo::smallScreenshotPath()
{
TQString ret;
if(!m_szAbsoluteDirectory.isEmpty())
{
ret = m_szAbsoluteDirectory;
KviTQString::ensureLastCharIs(ret,KVI_PATH_SEPARATOR_CHAR);
ret.append(KVI_THEME_SMALL_SCREENSHOT_NAME);
}
return ret;
}
const TQPixmap & KviThemeInfo::smallScreenshot()
{
if(!m_pixScreenshotSmall.isNull())return m_pixScreenshotSmall;
if(!m_szAbsoluteDirectory.isEmpty())
{
TQString szFileName = m_szAbsoluteDirectory;
KviTQString::ensureLastCharIs(szFileName,KVI_PATH_SEPARATOR_CHAR);
szFileName.append(KVI_THEME_SMALL_SCREENSHOT_NAME);
TQPixmap pix(szFileName);
if(!pix.isNull())
{
m_pixScreenshotSmall = pix;
return m_pixScreenshotSmall;
}
// try to scale it from the large one (and save it by the way)
pix = mediumScreenshot();
if(pix.isNull())return m_pixScreenshotSmall;
if(pix.width() > 300 || pix.height() > 225)
{
TQImage sbri = pix.convertToImage();
pix.convertFromImage(sbri.smoothScale(300,225,TQIMAGE_SCALE_MIN));
}
pix.save(szFileName,"PNG");
m_pixScreenshotSmall = pix;
return m_pixScreenshotSmall;
}
return m_pixScreenshotSmall;
}
const TQPixmap & KviThemeInfo::mediumScreenshot()
{
if(!m_pixScreenshotMedium.isNull())return m_pixScreenshotMedium;
if(!m_szAbsoluteDirectory.isEmpty())
{
TQString szFileName = m_szAbsoluteDirectory;
KviTQString::ensureLastCharIs(szFileName,KVI_PATH_SEPARATOR_CHAR);
szFileName.append(KVI_THEME_MEDIUM_SCREENSHOT_NAME);
TQPixmap pix(szFileName);
if(!pix.isNull())
{
m_pixScreenshotMedium = pix;
return m_pixScreenshotMedium;
}
// try to scale it from the large one (and save it by the way)
pix = largeScreenshot();
if(pix.isNull())return m_pixScreenshotMedium;
if(pix.width() > 600 || pix.height() > 450)
{
TQImage sbri = pix.convertToImage();
pix.convertFromImage(sbri.smoothScale(600,450,TQIMAGE_SCALE_MIN));
}
pix.save(szFileName,"PNG");
m_pixScreenshotMedium = pix;
return m_pixScreenshotMedium;
}
return m_pixScreenshotMedium;
}
const TQPixmap & KviThemeInfo::largeScreenshot()
{
if(!m_pixScreenshotLarge.isNull())return m_pixScreenshotLarge;
if(!m_szAbsoluteDirectory.isEmpty())
{
TQString szFileName = m_szAbsoluteDirectory;
KviTQString::ensureLastCharIs(szFileName,KVI_PATH_SEPARATOR_CHAR);
szFileName.append(KVI_THEME_LARGE_SCREENSHOT_NAME);
TQPixmap pix(szFileName);
if(pix.isNull())return m_pixScreenshotLarge;
m_pixScreenshotLarge = pix;
}
return m_pixScreenshotLarge;
}
namespace KviTheme
{
bool saveScreenshots(KviThemeInfo &options,const TQString &szOriginalScreenshotPath)
{
TQImage pix(szOriginalScreenshotPath);
if(pix.isNull())
{
options.setLastError(__tr2qs("Failed to load the specified screenshot image"));
return false;
}
TQPixmap out;
TQString szScreenshotFileName = options.absoluteDirectory();
if(szScreenshotFileName.isEmpty())
{
options.setLastError(__tr2qs("Invalid option"));
return false;
}
KviTQString::ensureLastCharIs(szScreenshotFileName,KVI_PATH_SEPARATOR_CHAR);
szScreenshotFileName.append(KVI_THEME_LARGE_SCREENSHOT_NAME);
if(!pix.save(szScreenshotFileName,"PNG"))
{
options.setLastError(__tr2qs("Failed to save the screenshot image"));
return false;
}
if(pix.width() > 600 || pix.height() > 450)
out.convertFromImage(pix.smoothScale(600,450,TQIMAGE_SCALE_MIN));
else
out.convertFromImage(pix);
szScreenshotFileName = options.absoluteDirectory();
KviTQString::ensureLastCharIs(szScreenshotFileName,KVI_PATH_SEPARATOR_CHAR);
szScreenshotFileName.append(KVI_THEME_MEDIUM_SCREENSHOT_NAME);
if(!out.save(szScreenshotFileName,"PNG"))
{
options.setLastError(__tr2qs("Failed to save the screenshot image"));
return false;
}
if(pix.width() > 300 || pix.height() > 225)
out.convertFromImage(pix.smoothScale(300,225,TQIMAGE_SCALE_MIN));
else
out.convertFromImage(pix);
szScreenshotFileName = options.absoluteDirectory();
KviTQString::ensureLastCharIs(szScreenshotFileName,KVI_PATH_SEPARATOR_CHAR);
szScreenshotFileName.append(KVI_THEME_SMALL_SCREENSHOT_NAME);
if(!out.save(szScreenshotFileName,"PNG"))
{
options.setLastError(__tr2qs("Failed to save the screenshot image"));
return false;
}
return true;
}
};