src/hbcore/image/hbpixmapiconrenderer.cpp
changeset 1 f7ac710697a9
child 5 627c4a0fd0e7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hbcore/image/hbpixmapiconrenderer.cpp	Mon May 03 12:48:33 2010 +0300
@@ -0,0 +1,151 @@
+/****************************************************************************
+**
+** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (developer.feedback@nokia.com)
+**
+** This file is part of the HbCore module of the UI Extensions for Mobile.
+**
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this file.
+** Please review the following information to ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at developer.feedback@nokia.com.
+**
+****************************************************************************/
+
+#include "hbpixmapiconrenderer_p.h"
+#include "hbmaskableiconimpl_p.h"
+
+#include <QStyleOption>
+#include <QApplication>
+
+struct HbPixmapIconMaskedData
+{
+    QPixmap    currentPixmap;
+};
+
+HbPixmapIconRenderer::HbPixmapIconRenderer(const QPixmap &pixmap, HbIconImpl *impl)
+        : iconMode(QIcon::Normal),
+        iconPropertiesApplied(false),
+        pixmapData(pixmap),
+        iconImpl(impl)
+{
+}
+
+HbPixmapIconRenderer::~HbPixmapIconRenderer()
+{
+}
+
+void HbPixmapIconRenderer::draw(QPainter* painter,
+                                const QPointF &topLeft,
+                                const QPainterPath &clipPath,
+                                HbMaskableIconImpl * maskIconData)
+{
+    if (!iconPropertiesApplied) {
+        applyIconProperties();
+    }
+
+    QPixmap pixmapToDraw = pixmapData;
+
+    if (maskIconData) {
+        pixmapToDraw = getMaskedPixmap(maskIconData);
+        if (pixmapToDraw.isNull()) {
+            pixmapToDraw = pixmapData;
+        }
+    }
+
+    doDraw(painter, topLeft, pixmapToDraw, clipPath);
+}
+
+void HbPixmapIconRenderer::doDraw(QPainter * painter,
+                                  const QPointF & topLeft,
+                                  const QPixmap & finalPixmap,
+                                  const QPainterPath & clipPath)
+{
+    if (!clipPath.isEmpty()) {
+        QPainterPath oldPath;
+        bool clipped = painter->hasClipping();
+    
+        if (!clipped) {
+            painter->setClipping(true);
+        }
+        
+        QRectF cliprect = clipPath.boundingRect();
+        QPainterPath intersect(clipPath);
+        if (clipped) {
+            oldPath = painter->clipPath();
+            QRectF oldrect = oldPath.boundingRect();
+            intersect =  oldPath.intersected(clipPath);
+            QRectF interrect = intersect.boundingRect();
+        }
+    
+        painter->setClipPath(intersect, Qt::ReplaceClip);     
+        painter->drawPixmap(topLeft, finalPixmap);
+    
+        if (!clipped) {
+            painter->setClipPath(oldPath, Qt::NoClip);
+        } else {
+            painter->setClipPath(oldPath);
+        }
+        painter->setClipping(clipped);
+    }  else {
+        painter->drawPixmap(topLeft, finalPixmap);
+    }
+}
+
+void HbPixmapIconRenderer::applyIconProperties()
+{
+    if ((iconColor.isValid()) && (iconMode != QIcon::Disabled)) {
+        if (!pixmapData.isNull()) {
+            QPixmap mask = pixmapData.alphaChannel();
+            pixmapData.fill(iconColor);
+            pixmapData.setAlphaChannel(mask);
+        }
+    }
+
+    // Apply the mode
+    if (iconMode != QIcon::Normal) {
+        QStyleOption opt(0);
+        opt.palette = QApplication::palette();
+        pixmapData = QApplication::style()->generatedIconPixmap(iconMode, pixmapData, &opt);
+    }
+    iconPropertiesApplied = true;
+}
+
+QPixmap HbPixmapIconRenderer::getMaskedPixmap(HbMaskableIconImpl * maskIconData)
+{
+    QPixmap maskedPixmap;
+
+    HbPixmapIconMaskedData * mi = (HbPixmapIconMaskedData *)maskIconData->implData();
+    if (maskIconData->maskChanged()) {
+        if (!mi) {
+            mi = new HbPixmapIconMaskedData();
+        }
+
+        mi->currentPixmap = pixmapData;
+        mi->currentPixmap.setMask(maskIconData->mask());
+        maskIconData->setImplData(mi);
+    }
+
+    if (mi) {
+        maskedPixmap = mi->currentPixmap;
+    }
+
+    return maskedPixmap;
+}
+
+void HbPixmapIconRenderer::destroyMaskedData(HbIconMaskedData *data)
+{
+    delete((HbPixmapIconMaskedData*)data);
+}
+