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, 127 insertions, 0 deletions

diff --git a/kdesktop/kfileividesktop.h b/kdesktop/kfileividesktop.h
new file mode 100644
index 000000000..0fb764cd0
--- /dev/null
+++ b/kdesktop/kfileividesktop.h
@@ -0,0 +1,127 @@
+/* This file is proposed to be part of the KDE base.
+ * Copyright (C) 2003 Laur Ivan <[email protected]>
+ *
+ * Many thanks to:
+ *  - Bernardo Hung <[email protected]> for the enhanced shadow
+ *    algorithm (currently used)
+ *  - Tim Jansen <[email protected]> for the API updates and fixes.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License version 2 as published by the Free Software Foundation.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KFILE_IVI_DESKTOP
+#define KFILE_IVI_DESKTOP
+
+#include <qcolor.h>
+#include <qpixmap.h>
+#include <qimage.h>
+#include <qstring.h>
+#include <kfileivi.h>
+
+/*
+ * The dither flags used to display the shadow image
+ */
+#define DITHER_FLAGS (Qt::DiffuseAlphaDither | Qt::ColorOnly | Qt::AvoidDither)
+
+
+class QFont;
+class KShadowEngine;
+
+/**
+ * This class replaces KFileIVI in the desktop only.
+ * If the shadow object is NULL, then the class should behave almost identical
+ * to its parent.
+ * @since 3.2
+ */
+class KFileIVIDesktop : public KFileIVI
+{
+ public:
+    /**
+     * Constructor. It replicates the KFileIVI constructor and adds an
+     * optional shadow object.
+     * @param iconview the parent (iconview)
+     * @param fileitem the item theis object is supposed to draw
+     * @param size the default size of the drawn object
+     * @param shadow reference to the shadow object
+     */
+    KFileIVIDesktop(KonqIconViewWidget *iconview, KFileItem* fileitem, int
+		     size, KShadowEngine *shadow = 0L);
+
+    /**
+     * Default destructor. Doesn't really do anything.
+     */
+    ~KFileIVIDesktop();
+
+ protected:
+    /**
+     * Reimplements KIconView::calcRect to take the shadow metrics
+     * into account
+     */
+     virtual void calcRect( const QString& _text );
+
+    /**
+     * Paints this item. Takes care of using the normal or alpha
+     * blending methods depending on the configuration.
+     * @param p the painter for drawing the item
+     * @param cg the base color group
+     */
+    virtual void paintItem(QPainter *p, const QColorGroup &cg);
+
+    /**
+     * Reimplements QIconView::paintFocus() to take the shadow
+     * metrics into account();
+     */
+    virtual void paintFocus( QPainter *p, const QColorGroup &cg );
+
+    /**
+     * Draws the shadow text.
+     * @param p the painter for drawing the item
+     * @param cg the base color group
+     */
+    virtual void drawShadowedText(QPainter *p, const QColorGroup &cg);
+
+    /**
+     * Builds the shadow. As the algorithm is pretty slow (at pixel level),
+     * This method is triggered only if the configuration has changed.
+     * @param p the painter for drawing the item
+     * @param align the shadow alignment
+     * @param shadowColor the shadow color
+     */
+    virtual QImage *buildShadow(QPainter *p, const int align, QColor &shadowColor);
+
+ protected:
+    void setNormalImage(QImage *newImage) { delete m_normalImage; m_normalImage = newImage; };
+    void setSelectedImage(QImage *newImage) { delete m_selectedImage; m_selectedImage = newImage; };
+
+    QImage *normalImage() { return m_normalImage; };
+    QImage *selectedImage() { return m_selectedImage; };
+
+ private:
+    bool shouldUpdateShadow(bool selected);
+    int shadowThickness() const;
+
+    KShadowEngine *m_shadow;
+
+    QImage  *m_selectedImage;
+    QImage  *m_normalImage;
+
+    QString oldText;
+
+    unsigned long _selectedUID;
+    unsigned long _normalUID;
+
+};
+
+#endif