--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/eswt_qt/org.eclipse.swt/Eclipse_SWT_PI/qt/library/listdatamodel.h Mon May 03 12:27:20 2010 +0300
@@ -0,0 +1,340 @@
+/*******************************************************************************
+ * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Nokia Corporation - initial implementation
+ *******************************************************************************/
+
+
+#ifndef SWT_LISTDATAMODEL_H
+#define SWT_LISTDATAMODEL_H
+
+#include <QAbstractListModel>
+#include <QItemDelegate>
+#include <QTextLayout>
+#include <QItemSelection>
+#include <QList>
+#include "jniutils.h"
+
+
+class QListView;
+
+namespace Java { namespace eSWT {
+
+
+class ListItem
+ {
+public:
+ ListItem( const QString& aText );
+ virtual ~ListItem();
+ const QString& text() const;
+ virtual const QPixmap* image() const;
+ void setText(const QString& string);
+ Qt::CheckState checkState() const;
+ void setCheckState( Qt::CheckState state );
+
+protected:
+ Qt::CheckState state;
+ QString txt;
+ };
+
+class ListViewItem : public ListItem
+ {
+public:
+ ListViewItem(const QString& aText, const QPixmap* aImage);
+ ~ListViewItem();
+ const QPixmap* image() const;
+ void setImage(const QPixmap* pixmap);
+
+private:
+ const QPixmap* img;
+ };
+
+class ListBoxItem : public ListItem
+ {
+public:
+ ListBoxItem(const QString& aDetailText, const QPixmap** aDetailImages, const int aDetailImageCount,
+ const QString& aHeadingText, const QPixmap** aHeadingImages, const int aHeadingImageCount );
+ ~ListBoxItem();
+ const QString& headingText() const;
+ const QList<QPixmap>& detailImages() const ;
+ const QList<QPixmap>& headingImages() const;
+ int detailImageCount() const;
+ int headingImageCount() const;
+
+private:
+ const QString headingTxt;
+ QList<QPixmap> detailImgs;
+ QList<QPixmap> headingImgs;
+ };
+
+class ListModel : public QAbstractListModel
+ {
+public:
+
+ ListModel( int type, int style, QListView *parent );
+ ~ListModel();
+
+
+ /**
+ * from QAbstractListModel
+ */
+ int rowCount(const QModelIndex& parent) const;
+ QVariant data(const QModelIndex& index, int role) const;
+ Qt::ItemFlags flags ( const QModelIndex& index ) const;
+
+ /**
+ * called by JNI, these calls are delegated to protected methods from QAbstractListModel
+ */
+ void beginInsertRows( const QModelIndex& parent, int first, int last );
+ void endInsertRows();
+ void beginRemoveRows( const QModelIndex& parent, int first, int last );
+ void endRemoveRows();
+ void emitLayoutAboutToBeChanged();
+ void emitLayoutChanged();
+
+ /**
+ * called by JNI
+ */
+ static ListModel* createDataModel( int type, int style, QListView *parent );
+ const QString& itemString( const int row ) const;
+ jobjectArray itemStrings( JNIEnv* aJniEnv );
+ int indexOf( const QString& string, const int start ) const;
+ int insertPosition(const QString& string, const bool ascent = true );
+ void setCheckState( const QItemSelection& selection, Qt::CheckState state );
+ void remove( const int row );
+ void appendItem( const QString& string );
+ void appendItem( const QString& string, const QPixmap* pixmap );
+ void setItem( const int row, const QString& string );
+ void setItem( const int row, const QString& string, const QPixmap* pixmap );
+ void insertItem( const int row, const QString& string );
+ void insertItem( const int row, const QString& string, const QPixmap* pixmap );
+ virtual void appendItem(const QString& aDetailText, const QPixmap** aDetailImages, const int aDetailImageCount,
+ const QString& aHeadingText, const QPixmap** aHeadingImages, const int aHeadingImageCount );
+ virtual int itemHeight();
+ virtual void clearList();
+
+ /**
+ * called by other native classes
+ */
+ int style() const;
+
+protected:
+ virtual ListItem* createItem( const QString& string );
+ virtual ListItem* createItem( const QString& string, const QPixmap* pixmap );
+ virtual ListItem* createItem(const QString& aDetailText, const QPixmap** aDetailImages, const int aDetailImageCount,
+ const QString& aHeadingText, const QPixmap** aHeadingImages, const int aHeadingImageCount );
+
+protected:
+ const int listType;
+ const int layoutStyle;
+ /**
+ * data body
+ */
+ QList<ListItem*> list;
+ };
+
+
+class ListViewModel : public ListModel
+ {
+public:
+ ListViewModel( int type, int style, QListView *parent );
+ ~ListViewModel();
+
+protected:
+ /**
+ * from ListModel
+ */
+ ListItem* createItem( const QString& string );
+ ListItem* createItem( const QString& string, const QPixmap* pixmap );
+ };
+
+
+class ListBoxModel : public ListModel
+ {
+public:
+ ListBoxModel( int type, int style, QListView *parent );
+ ~ListBoxModel();
+
+ /**
+ * from ListModel
+ */
+ void clearList();
+ void appendItem(const QString& aDetailText, const QPixmap** aDetailImages, const int aDetailImageCount,
+ const QString& aHeadingText, const QPixmap** aHeadingImages, const int aHeadingImageCount );
+
+ /**
+ * Below 5 methods provide item data
+ */
+ const QString& headingText(const int row) const;
+ int detailImageCount( const int row ) const;
+ int headingImageCount( const int row ) const;
+ const QList<QPixmap>& detailImages(const int row ) const;
+ const QList<QPixmap>& headingImages( const int row ) const;
+
+ /**
+ * called by ListBoxDelegate to save cached layout data to ListModel
+ * so that the ListBoxDelegate does not have to compute layout data from scratch
+ * whenever drawing a list item.
+ */
+ void updateLayoutData( const int row, const int rowHeight, const QPoint detailTxtSize,
+ const QPoint headingTxtSize, const int detailImgWidth, const int headingImgWidth ) const;
+
+ /**
+ * Below 10 methods provide cached layout data
+ */
+ const int& detailImageWidth(const int index ) const;
+ const int& headingImageWidth(const int index ) const;
+ QPoint detailTextSize() const;
+ QPoint headingTextSize() const;
+ int detailImageCount() const;
+ int headingImageCount() const;
+ QPoint detailImageSize(const int row) const;
+ QPoint headingImageSize(const int row) const;
+ int rowWithMaxDetailTextSize() const;
+ int rowWithMaxHeadingTextSize() const;
+
+protected:
+ /**
+ * from ListModel
+ */
+ ListItem* createItem(const QString& aDetailText, const QPixmap** aDetailImages, const int aDetailImageCount,
+ const QString& aHeadingText, const QPixmap** aHeadingImages, const int aHeadingImageCount );
+private:
+ /**
+ * layout data
+ */
+
+ /**
+ * holds the index which item has the largest detail text size
+ */
+ int detailTxtIndex;
+
+ /**
+ * holds the index which item has the largest heading text size
+ */
+ int headingTxtIndex;
+
+ /**
+ * holds the largest detail text size
+ */
+ mutable QPoint detailTxtSize;
+
+ /**
+ * holds the largest heading text size
+ */
+ mutable QPoint headingTxtSize;
+
+ /**
+ * holds the amount of columns for detail images
+ */
+ int detailImgCount;
+
+ /**
+ * holds the amount of columns for heading images
+ */
+ int headingImgCount;
+
+ /**
+ * holds maximum height of images
+ */
+ int imgHeight;
+
+ /**
+ * holds widths for every detail image columns
+ */
+ int* detailImgWidths;
+
+ /**
+ * holds widths for every heading image columns
+ */
+ int* headingImgWidths;
+
+ /**
+ * holds heights for every rows
+ */
+ mutable int* rowHeights;
+
+ /**
+ * holds entire width for all of detail images.
+ */
+ mutable int detailImgWidth;
+
+ /**
+ * holds entire width for all of heading images.
+ */
+ mutable int headingImgWidth;
+ };
+
+
+ class ListBoxItemDelegate : public QItemDelegate
+ {
+ Q_OBJECT
+public:
+ ListBoxItemDelegate( QObject* parent );
+
+ // from QItemDelegate
+ void paint(QPainter * painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const;
+ QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const;
+
+ // called from JNI
+ void setHeadingFont( QFont* font );
+
+private:
+
+ /**
+ * compute sizes of checkbox, detailtext, headingtext, detailImage and headingImage.
+ */
+ void computeSizes( const QModelIndex& index, const QStyleOptionViewItem& option, QSize* checkSize,
+ QSize *headingImageSize, QSize* detailImageSize, QSize* headingTextSize, QSize* detailTextSize) const;
+
+ /**
+ * add margins to checkbox, detailtext, headingtext, detailImage and headingImage.
+ */
+ void addMargins( const QStyleOptionViewItem &option, QSize* checkSize,
+ QSize* headingImageSize, QSize* detailImageSize, QSize* headingTextSize, QSize* detailTextSize ) const;
+
+ /**
+ * compute item entire size for the item
+ */
+ QSize computeSize( const QStyleOptionViewItem &option, const QSize& check, const QSize& headingImage,
+ const QSize& detailImage, const QSize& headingText, const QSize& detailText ) const;
+
+ /**
+ * layout checkbox, detailtext, headingtext, detailImage and headingImage within a given rectangle
+ * and adjust sizes and positions according to alignments from option
+ */
+ void layoutRects( const QStyleOptionViewItem &option, QRect* check, QRect *headingImage,
+ QRect* detailImage, QRect* headingText, QRect* detailText, bool hint ) const;
+
+ /**
+ * layout checkbox, detailtext, headingtext, detailImage and headingImage within a given rectangle
+ */
+ void doLayout( const QStyleOptionViewItem &option, QRect* checkRect, QRect* headingImageRect,
+ QRect* detailImageRect, QRect* headingTextRect, QRect* detailTextRect ) const;
+ QStyleOptionViewItem setOptions(const QModelIndex &index, const QStyleOptionViewItem &option) const;
+
+ QRect textRectangle(const int width, const QFont &font, const QString &text) const;
+
+ int margin( const QStyleOptionViewItem &option ) const;
+
+private:
+ void drawImages( QPainter* painter, const QStyleOptionViewItem &option,
+ const QRect imageRect, const QList<QPixmap>& images, const int* imageWidths, const int imageCount ) const;
+
+private:
+
+ /**
+ * not own
+ */
+ const ListBoxModel* dataModel;
+ mutable QTextLayout textLayout;
+ QFont* headingFont;
+ };
+
+ }}
+#endif // SWT_LISTDATAMODEL_H