Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 529 insertions, 0 deletions

diff --git a/kwin/clients/plastik/plastikclient.cpp b/kwin/clients/plastik/plastikclient.cpp
new file mode 100644
index 000000000..722761a5f
--- /dev/null
+++ b/kwin/clients/plastik/plastikclient.cpp
@@ -0,0 +1,529 @@
+/* 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 <klocale.h>
+
+#include <qbitmap.h>
+#include <qdatetime.h>
+#include <qfontmetrics.h>
+#include <qimage.h>
+#include <qlabel.h>
+#include <qlayout.h>
+#include <qpainter.h>
+#include <qpixmap.h>
+#include <qdesktopwidget.h>
+
+#include "plastikclient.h"
+#include "plastikbutton.h"
+#include "misc.h"
+
+namespace KWinPlastik
+{
+
+PlastikClient::PlastikClient(KDecorationBridge* bridge, KDecorationFactory* factory)
+    : KCommonDecoration (bridge, factory),
+    s_titleFont(QFont() )
+{
+    memset(m_captionPixmaps, 0, sizeof(QPixmap*)*2);
+}
+
+PlastikClient::~PlastikClient()
+{
+    clearCaptionPixmaps();
+}
+
+QString PlastikClient::visibleName() const
+{
+    return i18n("Plastik");
+}
+
+QString PlastikClient::defaultButtonsLeft() const
+{
+    return "M";
+}
+
+QString PlastikClient::defaultButtonsRight() const
+{
+    return "HIAX";
+}
+
+bool PlastikClient::decorationBehaviour(DecorationBehaviour behaviour) const
+{
+    switch (behaviour) {
+        case DB_MenuClose:
+            return Handler()->menuClose();
+
+        case DB_WindowMask:
+            return true;
+
+        default:
+            return KCommonDecoration::decorationBehaviour(behaviour);
+    }
+}
+
+int PlastikClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCommonDecorationButton *btn) const
+{
+    bool maximized = maximizeMode()==MaximizeFull && !options()->moveResizeMaximizedWindows();
+
+    switch (lm) {
+        case LM_BorderLeft:
+        case LM_BorderRight:
+        case LM_BorderBottom:
+        {
+            if (respectWindowState && maximized) {
+                return 0;
+            } else {
+                return Handler()->borderSize();
+            }
+        }
+
+        case LM_TitleEdgeTop:
+        {
+            if (respectWindowState && maximized) {
+                return 0;
+            } else {
+                return 4;
+            }
+        }
+
+        case LM_TitleEdgeBottom:
+        {
+//             if (respectWindowState && maximized) {
+//                 return 1;
+//             } else {
+                return 2;
+//             }
+        }
+
+        case LM_TitleEdgeLeft:
+        case LM_TitleEdgeRight:
+        {
+            if (respectWindowState && maximized) {
+                return 0;
+            } else {
+                return 6;
+            }
+        }
+
+        case LM_TitleBorderLeft:
+        case LM_TitleBorderRight:
+            return 5;
+
+        case LM_ButtonWidth:
+        case LM_ButtonHeight:
+        case LM_TitleHeight:
+        {
+            if (respectWindowState && isToolWindow()) {
+                return Handler()->titleHeightTool();
+            } else {
+                return Handler()->titleHeight();
+            }
+        }
+
+        case LM_ButtonSpacing:
+            return 1;
+
+        case LM_ButtonMarginTop:
+            return 0;
+
+        case LM_ExplicitButtonSpacer:
+            return 3;
+
+        default:
+            return KCommonDecoration::layoutMetric(lm, respectWindowState, btn);
+    }
+}
+
+KCommonDecorationButton *PlastikClient::createButton(ButtonType type)
+{
+    switch (type) {
+        case MenuButton:
+            return new PlastikButton(MenuButton, this, "menu");
+
+        case OnAllDesktopsButton:
+            return new PlastikButton(OnAllDesktopsButton, this, "on_all_desktops");
+
+        case HelpButton:
+            return new PlastikButton(HelpButton, this, "help");
+
+        case MinButton:
+            return new PlastikButton(MinButton, this, "minimize");
+
+        case MaxButton:
+            return new PlastikButton(MaxButton, this, "maximize");
+
+        case CloseButton:
+            return new PlastikButton(CloseButton, this, "close");
+
+        case AboveButton:
+            return new PlastikButton(AboveButton, this, "above");
+
+        case BelowButton:
+            return new PlastikButton(BelowButton, this, "below");
+
+        case ShadeButton:
+            return new PlastikButton(ShadeButton, this, "shade");
+
+        default:
+            return 0;
+    }
+}
+
+void PlastikClient::init()
+{
+    s_titleFont = isToolWindow() ? Handler()->titleFontTool() : Handler()->titleFont();
+
+    clearCaptionPixmaps();
+
+    KCommonDecoration::init();
+}
+
+QRegion PlastikClient::cornerShape(WindowCorner corner)
+{
+    int w = widget()->width();
+    int h = widget()->height();
+
+    switch (corner) {
+        case WC_TopLeft:
+            if (layoutMetric(LM_TitleEdgeLeft) > 0)
+                return QRegion(0, 0, 1, 2) + QRegion(1, 0, 1, 1);
+            else
+                return QRegion();
+
+        case WC_TopRight:
+            if (layoutMetric(LM_TitleEdgeRight) > 0)
+                return QRegion(w-1, 0, 1, 2) + QRegion(w-2, 0, 1, 1);
+            else
+                return QRegion();
+
+        case WC_BottomLeft:
+            if (layoutMetric(LM_BorderBottom) > 0)
+                return QRegion(0, h-1, 1, 1);
+            else
+                return QRegion();
+
+        case WC_BottomRight:
+            if (layoutMetric(LM_BorderBottom) > 0)
+                return QRegion(w-1, h-1, 1, 1);
+            else
+                return QRegion();
+
+        default:
+            return QRegion();
+    }
+
+}
+
+void PlastikClient::paintEvent(QPaintEvent *e)
+{
+    QRegion region = e->region();
+
+    PlastikHandler *handler = Handler();
+
+    if (oldCaption != caption() )
+        clearCaptionPixmaps();
+
+    bool active = isActive();
+    bool toolWindow = isToolWindow();
+
+    QPainter painter(widget() );
+
+    // often needed coordinates
+    QRect r = widget()->rect();
+
+    int r_w = r.width();
+//     int r_h = r.height();
+    int r_x, r_y, r_x2, r_y2;
+    r.coords(&r_x, &r_y, &r_x2, &r_y2);
+    const int borderLeft = layoutMetric(LM_BorderLeft);
+    const int borderRight = layoutMetric(LM_BorderRight);
+    const int borderBottom = layoutMetric(LM_BorderBottom);
+    const int titleHeight = layoutMetric(LM_TitleHeight);
+    const int titleEdgeTop = layoutMetric(LM_TitleEdgeTop);
+    const int titleEdgeBottom = layoutMetric(LM_TitleEdgeBottom);
+    const int titleEdgeLeft = layoutMetric(LM_TitleEdgeLeft);
+    const int titleEdgeRight = layoutMetric(LM_TitleEdgeRight);
+
+    const int borderBottomTop = r_y2-borderBottom+1;
+    const int borderLeftRight = r_x+borderLeft-1;
+    const int borderRightLeft = r_x2-borderRight+1;
+    const int titleEdgeBottomBottom = r_y+titleEdgeTop+titleHeight+titleEdgeBottom-1;
+
+    const int sideHeight = borderBottomTop-titleEdgeBottomBottom-1;
+
+    QRect Rtitle = QRect(r_x+titleEdgeLeft+buttonsLeftWidth(), r_y+titleEdgeTop,
+                         r_x2-titleEdgeRight-buttonsRightWidth()-(r_x+titleEdgeLeft+buttonsLeftWidth()),
+                         titleEdgeBottomBottom-(r_y+titleEdgeTop) );
+
+    QRect tempRect;
+
+    // topSpacer
+    if(titleEdgeTop > 0)
+    {
+        tempRect.setRect(r_x+2, r_y, r_w-2*2, titleEdgeTop );
+        if (tempRect.isValid() && region.contains(tempRect) ) {
+            painter.drawTiledPixmap(tempRect, handler->pixmap(TitleBarTileTop, active, toolWindow) );
+        }
+    }
+
+    // leftTitleSpacer
+    int titleMarginLeft = 0;
+    int titleMarginRight = 0;
+    if(titleEdgeLeft > 0)
+    {
+        tempRect.setRect(r_x, r_y, borderLeft, titleEdgeTop+titleHeight+titleEdgeBottom);
+        if (tempRect.isValid() && region.contains(tempRect) ) {
+            painter.drawTiledPixmap(tempRect, handler->pixmap(TitleBarLeft, active, toolWindow) );
+            titleMarginLeft = borderLeft;
+        }
+    }
+
+    // rightTitleSpacer
+    if(titleEdgeRight > 0)
+    {
+        tempRect.setRect(borderRightLeft, r_y, borderRight, titleEdgeTop+titleHeight+titleEdgeBottom);
+        if (tempRect.isValid() && region.contains(tempRect) ) {
+            painter.drawTiledPixmap(tempRect, handler->pixmap(TitleBarRight, active, toolWindow) );
+            titleMarginRight = borderRight;
+        }
+    }
+
+    // titleSpacer
+    const QPixmap &caption = captionPixmap();
+    if(Rtitle.width() > 0)
+    {
+        m_captionRect = captionRect(); // also update m_captionRect!
+        if (m_captionRect.isValid() && region.contains(m_captionRect) )
+        {
+            painter.drawTiledPixmap(m_captionRect, caption);
+        }
+
+        // left to the title
+        tempRect.setRect(r_x+titleMarginLeft, m_captionRect.top(),
+                         m_captionRect.left() - (r_x+titleMarginLeft), m_captionRect.height() );
+        if (tempRect.isValid() && region.contains(tempRect) ) {
+            painter.drawTiledPixmap(tempRect, handler->pixmap(TitleBarTile, active, toolWindow) );
+        }
+
+        // right to the title
+        tempRect.setRect(m_captionRect.right()+1, m_captionRect.top(),
+                         (r_x2-titleMarginRight) - m_captionRect.right(), m_captionRect.height() );
+        if (tempRect.isValid() && region.contains(tempRect) ) {
+            painter.drawTiledPixmap(tempRect, handler->pixmap(TitleBarTile, active, toolWindow) );
+        }
+
+    }
+
+    // leftSpacer
+    if(borderLeft > 0 && sideHeight > 0)
+    {
+        tempRect.setCoords(r_x, titleEdgeBottomBottom+1, borderLeftRight, borderBottomTop-1);
+        if (tempRect.isValid() && region.contains(tempRect) ) {
+            painter.drawTiledPixmap(tempRect, handler->pixmap(BorderLeftTile, active, toolWindow) );
+        }
+    }
+
+    // rightSpacer
+    if(borderRight > 0 && sideHeight > 0)
+    {
+        tempRect.setCoords(borderRightLeft, titleEdgeBottomBottom+1, r_x2, borderBottomTop-1);
+        if (tempRect.isValid() && region.contains(tempRect) ) {
+            painter.drawTiledPixmap(tempRect, handler->pixmap(BorderRightTile, active, toolWindow) );
+        }
+    }
+
+    // bottomSpacer
+    if(borderBottom > 0)
+    {
+        int l = r_x;
+        int r = r_x2;
+
+        tempRect.setRect(r_x, borderBottomTop, borderLeft, borderBottom);
+        if (tempRect.isValid() && region.contains(tempRect) ) {
+            painter.drawTiledPixmap(tempRect, handler->pixmap(BorderBottomLeft, active, toolWindow) );
+            l = tempRect.right()+1;
+        }
+
+        tempRect.setRect(borderRightLeft, borderBottomTop, borderLeft, borderBottom);
+        if (tempRect.isValid() && region.contains(tempRect) ) {
+            painter.drawTiledPixmap(tempRect, handler->pixmap(BorderBottomRight, active, toolWindow) );
+            r = tempRect.left()-1;
+        }
+
+        tempRect.setCoords(l, borderBottomTop, r, r_y2);
+        if (tempRect.isValid() && region.contains(tempRect) ) {
+            painter.drawTiledPixmap(tempRect, handler->pixmap(BorderBottomTile, active, toolWindow) );
+        }
+    }
+}
+
+QRect PlastikClient::captionRect() const
+{
+    const QPixmap &caption = captionPixmap();
+    QRect r = widget()->rect();
+
+    const int titleHeight = layoutMetric(LM_TitleHeight);
+    const int titleEdgeBottom = layoutMetric(LM_TitleEdgeBottom);
+    const int titleEdgeTop = layoutMetric(LM_TitleEdgeTop);
+    const int titleEdgeLeft = layoutMetric(LM_TitleEdgeLeft);
+    const int marginLeft = layoutMetric(LM_TitleBorderLeft);
+    const int marginRight = layoutMetric(LM_TitleBorderRight);
+
+    const int titleLeft = r.left() + titleEdgeLeft + buttonsLeftWidth() + marginLeft;
+    const int titleWidth = r.width() -
+            titleEdgeLeft - layoutMetric(LM_TitleEdgeRight) -
+            buttonsLeftWidth() - buttonsRightWidth() -
+            marginLeft - marginRight;
+
+    Qt::AlignmentFlags a = Handler()->titleAlign();
+
+    int tX, tW; // position/width of the title buffer
+    if (caption.width() >  titleWidth) {
+        tW = titleWidth;
+    } else {
+        tW = caption.width();
+    }
+    if (a == Qt::AlignLeft || (caption.width() > titleWidth) ) {
+        // Align left
+        tX = titleLeft;
+    } else if (a == Qt::AlignHCenter) {
+        // Align center
+        tX = titleLeft+(titleWidth- caption.width() )/2;
+    } else {
+        // Align right
+        tX = titleLeft+titleWidth-caption.width();
+    }
+
+    return QRect(tX, r.top()+titleEdgeTop, tW, titleHeight+titleEdgeBottom);
+}
+
+void PlastikClient::updateCaption()
+{
+    QRect oldCaptionRect = m_captionRect;
+
+    if (oldCaption != caption() )
+        clearCaptionPixmaps();
+
+    m_captionRect = PlastikClient::captionRect();
+
+    if (oldCaptionRect.isValid() && m_captionRect.isValid() )
+        widget()->update(oldCaptionRect|m_captionRect);
+    else
+        widget()->update();
+}
+
+void PlastikClient::reset( unsigned long changed )
+{
+    if (changed & SettingColors)
+    {
+        // repaint the whole thing
+        clearCaptionPixmaps();
+        widget()->update();
+        updateButtons();
+    } else if (changed & SettingFont) {
+        // font has changed -- update title height and font
+        s_titleFont = isToolWindow() ? Handler()->titleFontTool() : Handler()->titleFont();
+
+        updateLayout();
+
+        // then repaint
+        clearCaptionPixmaps();
+        widget()->update();
+    }
+
+    KCommonDecoration::reset(changed);
+}
+
+const QPixmap &PlastikClient::getTitleBarTile(bool active) const
+{
+    return Handler()->pixmap(TitleBarTile, active, isToolWindow() );
+}
+
+const QPixmap &PlastikClient::captionPixmap() const
+{
+    bool active = isActive();
+
+    if (m_captionPixmaps[active]) {
+        return *m_captionPixmaps[active];
+    }
+
+    // not found, create new pixmap...
+
+    const uint maxCaptionLength = 300; // truncate captions longer than this!
+    QString c(caption() );
+    if (c.length() > maxCaptionLength) {
+        c.truncate(maxCaptionLength);
+        c.append(" [...]");
+    }
+
+    QFontMetrics fm(s_titleFont);
+    int captionWidth  = fm.width(c);
+    int captionHeight = fm.height();
+
+    const int th  = layoutMetric(LM_TitleHeight, false) + layoutMetric(LM_TitleEdgeBottom, false);
+
+    QPainter painter;
+
+    const int thickness = 2;
+
+    QPixmap *captionPixmap = new QPixmap(captionWidth+2*thickness, th);
+
+    painter.begin(captionPixmap);
+    painter.drawTiledPixmap(captionPixmap->rect(),
+                            Handler()->pixmap(TitleBarTile, active, isToolWindow()) );
+
+    painter.setFont(s_titleFont);
+    QPoint tp(1, captionHeight-1);
+    if(Handler()->titleShadow())
+    {
+        QColor shadowColor;
+        if (qGray(Handler()->getColor(TitleFont,active).rgb()) < 100)
+            shadowColor = QColor(255, 255, 255);
+        else
+            shadowColor = QColor(0,0,0);
+
+        painter.setPen(alphaBlendColors(options()->color(ColorTitleBar, active), shadowColor, 205) );
+        painter.drawText(tp+QPoint(1,2), c);
+        painter.setPen(alphaBlendColors(options()->color(ColorTitleBar, active), shadowColor, 225) );
+        painter.drawText(tp+QPoint(2,2), c);
+        painter.setPen(alphaBlendColors(options()->color(ColorTitleBar, active), shadowColor, 165) );
+        painter.drawText(tp+QPoint(1,1), c);
+    }
+    painter.setPen(Handler()->getColor(TitleFont,active) );
+    painter.drawText(tp, c );
+    painter.end();
+
+    m_captionPixmaps[active] = captionPixmap;
+    return *captionPixmap;
+}
+
+void PlastikClient::clearCaptionPixmaps()
+{
+    for (int i = 0; i < 2; ++i) {
+        delete m_captionPixmaps[i];
+        m_captionPixmaps[i] = 0;
+    }
+
+    oldCaption = caption();
+}
+
+} // KWinPlastik