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kwin/clients/plastik/plastik.cpp
Luboš Luňák 0170623a9c Separate KCommonDecoration from KDecoration, in order to allow 
greater possibilities in extending KDecoration. KCommonDecoration
now does not inherit KDecoration, only wraps it (i.e. it's source
compatible). Added comments on how to extend KDecoration
in the future by subclassing to KDecoration2, added PORTING
document with all API changes in KDE4.
CCMAIL: kwin@kde.org


svn path=/trunk/KDE/kdebase/workspace/; revision=742976
2007-11-29 14:11:02 +00:00

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/* Plastik KWin window decoration
Copyright (C) 2003-2005 Sandro Giessl <sandro@giessl.com>
based on the window decoration "Web":
Copyright (C) 2001 Rik Hemsley (rikkus) <rik@kde.org>
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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <QBitmap>
#include <QPainter>
#include <QImage>
#include <kconfiggroup.h>
#include <QPixmap>
#include "misc.h"
#include "plastik.h"
#include "plastik.moc"
#include "plastikclient.h"
#include "plastikbutton.h"
#include <QApplication>
#include <kconfig.h>
namespace KWinPlastik
{
PlastikHandler::PlastikHandler()
{
memset(m_pixmaps, 0, sizeof(QPixmap*)*NumPixmaps*2*2); // set elements to 0
memset(m_bitmaps, 0, sizeof(QBitmap*)*NumButtonIcons*2);
reset(0);
}
PlastikHandler::~PlastikHandler()
{
for (int t=0; t < 2; ++t)
for (int a=0; a < 2; ++a)
for (int i=0; i < NumPixmaps; ++i)
delete m_pixmaps[t][a][i];
for (int t=0; t < 2; ++t)
for (int i=0; i < NumButtonIcons; ++i)
delete m_bitmaps[t][i];
}
bool PlastikHandler::reset(unsigned long changed)
{
// we assume the active font to be the same as the inactive font since the control
// center doesn't offer different settings anyways.
m_titleFont = KDecoration::options()->font(true, false); // not small
m_titleFontTool = KDecoration::options()->font(true, true); // small
switch(KDecoration::options()->preferredBorderSize( this )) {
case BorderTiny:
m_borderSize = 3;
break;
case BorderLarge:
m_borderSize = 8;
break;
case BorderVeryLarge:
m_borderSize = 12;
break;
case BorderHuge:
m_borderSize = 18;
break;
case BorderVeryHuge:
m_borderSize = 27;
break;
case BorderOversized:
m_borderSize = 40;
break;
case BorderNormal:
default:
m_borderSize = 4;
}
// check if we are in reverse layout mode
m_reverse = QApplication::isRightToLeft();
// read in the configuration
readConfig();
// pixmaps probably need to be updated, so delete the cache.
for (int t=0; t < 2; ++t) {
for (int a=0; a < 2; ++a) {
for (int i=0; i < NumPixmaps; i++) {
if (m_pixmaps[t][a][i]) {
delete m_pixmaps[t][a][i];
m_pixmaps[t][a][i] = 0;
}
}
}
}
for (int t=0; t < 2; ++t) {
for (int i=0; i < NumButtonIcons; i++) {
if (m_bitmaps[t][i]) {
delete m_bitmaps[t][i];
m_bitmaps[t][i] = 0;
}
}
}
// Do we need to "hit the wooden hammer" ?
bool needHardReset = true;
// TODO: besides the Color and Font settings I can maybe handle more changes
// without a hard reset. I will do this later...
if ((changed & ~(SettingColors | SettingFont | SettingButtons)) == 0 )
{
needHardReset = false;
}
if (needHardReset) {
return true;
} else {
resetDecorations(changed);
return false;
}
}
KDecoration* PlastikHandler::createDecoration( KDecorationBridge* bridge )
{
return ( new PlastikClient( bridge, this ))->decoration();
}
bool PlastikHandler::supports( Ability ability ) const
{
switch( ability )
{
case AbilityAnnounceButtons:
case AbilityButtonMenu:
case AbilityButtonOnAllDesktops:
case AbilityButtonSpacer:
case AbilityButtonHelp:
case AbilityButtonMinimize:
case AbilityButtonMaximize:
case AbilityButtonClose:
case AbilityButtonAboveOthers:
case AbilityButtonBelowOthers:
case AbilityButtonShade:
return true;
default:
return false;
};
}
void PlastikHandler::readConfig()
{
// create a config object
KConfig configFile("kwinplastikrc");
const KConfigGroup config( &configFile, "General");
// grab settings
m_titleShadow = config.readEntry("TitleShadow", true);
QFontMetrics fm(m_titleFont); // active font = inactive font
int titleHeightMin = config.readEntry("MinTitleHeight", 16);
// The title should stretch with bigger font sizes!
m_titleHeight = qMax(titleHeightMin, fm.height() + 4); // 4 px for the shadow etc.
// have an even title/button size so the button icons are fully centered...
if ( m_titleHeight%2 == 0)
m_titleHeight++;
fm = QFontMetrics(m_titleFontTool); // active font = inactive font
int titleHeightToolMin = config.readEntry("MinTitleHeightTool", 13);
// The title should stretch with bigger font sizes!
m_titleHeightTool = qMax(titleHeightToolMin, fm.height() ); // don't care about the shadow etc.
// have an even title/button size so the button icons are fully centered...
if ( m_titleHeightTool%2 == 0)
m_titleHeightTool++;
QString value = config.readEntry("TitleAlignment", "AlignLeft");
if (value == "AlignLeft") m_titleAlign = Qt::AlignLeft;
else if (value == "AlignHCenter") m_titleAlign = Qt::AlignHCenter;
else if (value == "AlignRight") m_titleAlign = Qt::AlignRight;
m_coloredBorder = config.readEntry("ColoredBorder", true);
m_animateButtons = config.readEntry("AnimateButtons", true);
m_menuClose = config.readEntry("CloseOnMenuDoubleClick", true);
}
QColor PlastikHandler::getColor(KWinPlastik::ColorType type, const bool active)
{
switch (type) {
case WindowContour:
return KDecoration::options()->color(ColorTitleBar, active).dark(200);
case TitleGradient1:
return hsvRelative(KDecoration::options()->color(ColorTitleBar, active), 0,-10,+10);
break;
case TitleGradient2:
return hsvRelative(KDecoration::options()->color(ColorTitleBar, active), 0,0,-25);
break;
case TitleGradient3:
return KDecoration::options()->color(ColorTitleBar, active);
break;
case ShadeTitleLight:
return alphaBlendColors(KDecoration::options()->color(ColorTitleBar, active),
Qt::white, active?205:215);
break;
case ShadeTitleDark:
return alphaBlendColors(KDecoration::options()->color(ColorTitleBar, active),
Qt::black, active?205:215);
break;
case Border:
return KDecoration::options()->color(ColorFrame, active);
case TitleFont:
return KDecoration::options()->color(ColorFont, active);
default:
return Qt::black;
}
}
const QPixmap &PlastikHandler::pixmap(Pixmaps type, bool active, bool toolWindow)
{
if (m_pixmaps[toolWindow][active][type])
return *m_pixmaps[toolWindow][active][type];
QPixmap *pm = 0;
switch (type) {
case TitleBarTileTop:
case TitleBarTile:
{
const int titleBarTileHeight = (toolWindow ? m_titleHeightTool : m_titleHeight);
// gradient used as well in TitleBarTileTop as TitleBarTile
const int gradientHeight = 2 + titleBarTileHeight-1;
QPixmap gradient(1, gradientHeight);
QPainter painter(&gradient);
painter.setPen(Qt::NoPen);
QLinearGradient grad(0, 0, 0, gradientHeight);
grad.setColorAt(0.0, getColor(TitleGradient1, active));
grad.setColorAt(4.0 / (double)gradientHeight, getColor(TitleGradient2, active));
grad.setColorAt(1.0 - (4.0 / (double)gradientHeight), getColor(TitleGradient2, active));
grad.setColorAt(1.0, getColor(TitleGradient3, active));
painter.setBrush(grad);
painter.drawRect(0, 0, 1, gradientHeight);
painter.end();
// actual titlebar tiles
if (type == TitleBarTileTop) {
pm = new QPixmap(1, 4);
painter.begin(pm);
// contour
painter.setPen(getColor(WindowContour, active) );
painter.drawPoint(0,0);
// top highlight
painter.setPen(getColor(ShadeTitleLight, active) );
painter.drawPoint(0,1);
// gradient
painter.drawPixmap(0, 2, gradient);
painter.end();
} else {
pm = new QPixmap(1, titleBarTileHeight);
painter.begin(pm);
painter.drawPixmap(0, 0, gradient, 0,2 ,-1,-1);
if (m_coloredBorder) {
painter.setPen(getColor(TitleGradient3, active).dark(110) );
} else {
painter.setPen(getColor(TitleGradient3, active) );
}
painter.drawPoint(0,titleBarTileHeight-1);
painter.end();
}
break;
}
case TitleBarLeft:
{
const int w = m_borderSize;
const int h = 4 + (toolWindow ? m_titleHeightTool : m_titleHeight) + 2;
pm = new QPixmap(w, h);
QPainter painter(pm);
painter.drawTiledPixmap(0,0, w, 4, pixmap(TitleBarTileTop, active, toolWindow) );
painter.drawTiledPixmap(0,4, w, h-4, pixmap(TitleBarTile, active, toolWindow) );
painter.setPen(getColor(WindowContour, active) );
painter.drawLine(0,0, 0,h);
painter.drawPoint(1,1);
const QColor highlightTitleLeft = getColor(ShadeTitleLight, active);
painter.setPen(highlightTitleLeft);
painter.drawLine(1,2, 1,h);
if (m_coloredBorder) {
painter.setPen(getColor(TitleGradient3, active) );
painter.drawLine(2,h-1, w-1,h-1);
}
// outside the region normally masked by doShape
painter.setPen(QColor(0,0,0) );
painter.drawLine(0, 0, 1, 0 );
painter.drawPoint(0, 1);
break;
}
case TitleBarRight:
{
const int w = m_borderSize;
const int h = 4 + (toolWindow ? m_titleHeightTool : m_titleHeight) + 2;
pm = new QPixmap(w, h);
QPainter painter(pm);
painter.drawTiledPixmap(0,0, w, 4, pixmap(TitleBarTileTop, active, toolWindow) );
painter.drawTiledPixmap(0,4, w, h-4, pixmap(TitleBarTile, active, toolWindow) );
painter.setPen(getColor(WindowContour, active) );
painter.drawLine(w-1,0, w-1,h);
painter.drawPoint(w-2,1);
const QColor highlightTitleRight = getColor(ShadeTitleDark, active);
painter.setPen(highlightTitleRight);
painter.drawLine(w-2,2, w-2,h);
if (m_coloredBorder) {
painter.setPen(getColor(TitleGradient3, active) );
painter.drawLine(0,h-1, w-3,h-1);
}
// outside the region normally masked by doShape
painter.setPen(QColor(0,0,0) );
painter.drawLine(w-2, 0, w-1, 0 );
painter.drawPoint(w-1, 1);
break;
}
case BorderLeftTile:
{
const int w = m_borderSize;
pm = new QPixmap(w, 1);
QPainter painter(pm);
if (m_coloredBorder) {
painter.setPen(getColor(WindowContour, active) );
painter.drawPoint(0, 0);
painter.setPen(getColor(ShadeTitleLight, active) );
painter.drawPoint(1, 0);
if (w > 3) {
painter.setPen(getColor(TitleGradient3, active) );
painter.drawLine(2,0, w-2,0);
}
painter.setPen(getColor(TitleGradient3, active).dark(110) );
painter.drawPoint(w-1,0);
} else {
painter.setPen(getColor(WindowContour, active) );
painter.drawPoint(0, 0);
painter.setPen(
alphaBlendColors(getColor(Border, active),
getColor(ShadeTitleLight, active), 130) );
painter.drawPoint(1, 0);
painter.setPen(getColor(Border, active) );
painter.drawLine(2,0, w-1,0);
}
painter.end();
break;
}
case BorderRightTile:
{
const int w = m_borderSize;
pm = new QPixmap(w, 1);
QPainter painter(pm);
if (m_coloredBorder) {
painter.setPen(getColor(TitleGradient3, active).dark(110) );
painter.drawPoint(0,0);
if (w > 3) {
painter.setPen(getColor(TitleGradient3, active) );
painter.drawLine(1,0, w-3,0);
}
painter.setPen(getColor(ShadeTitleDark, active) );
painter.drawPoint(w-2, 0);
painter.setPen(getColor(WindowContour, active) );
painter.drawPoint(w-1, 0);
} else {
painter.setPen(getColor(Border, active) );
painter.drawLine(0,0, w-3,0);
painter.setPen(
alphaBlendColors(getColor(Border, active),
getColor(ShadeTitleDark, active), 130) );
painter.drawPoint(w-2, 0);
painter.setPen(getColor(WindowContour, active) );
painter.drawPoint(w-1, 0);
}
painter.end();
break;
}
case BorderBottomLeft:
{
const int w = m_borderSize;
const int h = m_borderSize;
pm = new QPixmap(w, h);
QPainter painter(pm);
painter.drawTiledPixmap(0,0,w,h, pixmap(BorderBottomTile, active, toolWindow) );
painter.setPen(getColor(WindowContour, active) );
painter.drawLine(0,0, 0,h);
if (m_coloredBorder) {
if (h > 3) {
painter.setPen(getColor(ShadeTitleLight, active) );
painter.drawLine(1,0, 1,h-2);
}
painter.setPen(getColor(TitleGradient3, active) );
painter.drawLine(2,0, w-1,0);
} else {
painter.setPen(
alphaBlendColors(getColor(Border, active),
getColor(ShadeTitleLight, active), 130) );
painter.drawLine(1,0, 1,h-2);
}
painter.end();
break;
}
case BorderBottomRight:
{
const int w = m_borderSize;
const int h = m_borderSize;
pm = new QPixmap(w, h);
QPainter painter(pm);
painter.drawTiledPixmap(0,0,w,h, pixmap(BorderBottomTile, active, toolWindow) );
painter.setPen(getColor(WindowContour, active) );
painter.drawLine(w-1,0, w-1,h);
if (m_coloredBorder) {
painter.setPen(getColor(ShadeTitleDark, active) );
painter.drawLine(w-2,0, w-2,h-2);
painter.setPen(getColor(TitleGradient3, active) );
painter.drawLine(0,0, w-3,0);
} else {
painter.setPen(
alphaBlendColors(getColor(Border, active),
getColor(ShadeTitleDark, active), 130) );
painter.drawLine(w-2,0, w-2,h-2);
}
painter.end();
break;
}
case BorderBottomTile:
default:
{
const int h = m_borderSize;
pm = new QPixmap(1, m_borderSize);
QPainter painter(pm);
if (m_coloredBorder) {
painter.setPen(getColor(TitleGradient3, active).dark(110) );
painter.drawPoint(0,0);
painter.setPen(getColor(TitleGradient3, active) );
painter.drawLine(0,1, 0,h-3);
painter.setPen(getColor(ShadeTitleDark, active) );
painter.drawPoint(0, h-2);
} else {
painter.setPen(getColor(Border, active) );
painter.drawLine(0,0, 0,h-3);
painter.setPen(
alphaBlendColors(getColor(Border, active),
getColor(ShadeTitleDark, active), 130) );
painter.drawPoint(0, h-2);
}
painter.setPen(getColor(WindowContour, active) );
painter.drawPoint(0, h-1);
painter.end();
break;
}
}
m_pixmaps[toolWindow][active][type] = pm;
return *pm;
}
const QBitmap &PlastikHandler::buttonBitmap(ButtonIcon type, const QSize &size, bool toolWindow)
{
int typeIndex = type;
// btn icon size...
int reduceW = 0, reduceH = 0;
if(size.width()>14) {
reduceW = static_cast<int>(2*(size.width()/3.5) );
}
else
reduceW = 6;
if(size.height()>14)
reduceH = static_cast<int>(2*(size.height()/3.5) );
else
reduceH = 6;
int w = size.width() - reduceW;
int h = size.height() - reduceH;
if (m_bitmaps[toolWindow][typeIndex] && m_bitmaps[toolWindow][typeIndex]->size()==QSize(w,h) )
return *m_bitmaps[toolWindow][typeIndex];
// no matching pixmap found, create a new one...
delete m_bitmaps[toolWindow][typeIndex];
m_bitmaps[toolWindow][typeIndex] = 0;
QBitmap bmp = IconEngine::icon(type /*icon*/, qMin(w,h) );
QBitmap *bitmap = new QBitmap(bmp);
m_bitmaps[toolWindow][typeIndex] = bitmap;
return *bitmap;
}
QList< PlastikHandler::BorderSize >
PlastikHandler::borderSizes() const
{
// the list must be sorted
return QList< BorderSize >() << BorderTiny << BorderNormal <<
BorderLarge << BorderVeryLarge << BorderHuge <<
BorderVeryHuge << BorderOversized;
}
// make the handler accessible to other classes...
static PlastikHandler *handler = 0;
PlastikHandler* Handler()
{
return handler;
}
} // KWinPlastik
//////////////////////////////////////////////////////////////////////////////
// Plugin Stuff //
//////////////////////////////////////////////////////////////////////////////
extern "C"
{
KDE_EXPORT KDecorationFactory *create_factory()
{
KWinPlastik::handler = new KWinPlastik::PlastikHandler();
return KWinPlastik::handler;
}
}
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