diff options
Diffstat (limited to 'doc/src/porting/porting4-canvas.qdoc')
| -rw-r--r-- | doc/src/porting/porting4-canvas.qdoc | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/doc/src/porting/porting4-canvas.qdoc b/doc/src/porting/porting4-canvas.qdoc index 445f66d..1e20384 100644 --- a/doc/src/porting/porting4-canvas.qdoc +++ b/doc/src/porting/porting4-canvas.qdoc @@ -152,7 +152,7 @@ \row \o Q3Canvas::onCanvas() \o The is no equivalent to this function in Graphics View. However, you can combine QGraphicsScene::sceneRect() and QRectF::intersects(): - \snippet doc/src/snippets/code/doc_src_porting4-canvas.qdoc 0 + \snippet doc/src/snippets/code/doc_src_porting4-canvas.cpp 0 \row \o Q3Canvas::rect() \o The equivalent, QGraphicsScene::sceneRect(), returns a QRectF (double @@ -251,7 +251,7 @@ out the public tile API can then be declared as new members of this class. Here is one example of how to implement tile support: - \snippet doc/src/snippets/code/doc_src_porting4-canvas.qdoc 1 + \snippet doc/src/snippets/code/doc_src_porting4-canvas.cpp 1 Depending on how your scene uses tiles, you may be able to simplify this approach. In this example, we will try to mimic the behavior @@ -264,30 +264,30 @@ two-dimensional vector of ints to keep track of what tiles should be used at what parts of the scene. - \snippet doc/src/snippets/code/doc_src_porting4-canvas.qdoc 2 + \snippet doc/src/snippets/code/doc_src_porting4-canvas.cpp 2 In setTiles(), we store the pixmap and tile properties as members of the class. Then we resize the tiles vector to match the width and height of our tile grid. - \snippet doc/src/snippets/code/doc_src_porting4-canvas.qdoc 3 + \snippet doc/src/snippets/code/doc_src_porting4-canvas.cpp 3 The setTile() function updates the tiles index, and then updates the corresponding rect in the scene by calling tileRect(). - \snippet doc/src/snippets/code/doc_src_porting4-canvas.qdoc 4 + \snippet doc/src/snippets/code/doc_src_porting4-canvas.cpp 4 The first tileRect() function returns a QRect for the tile at position (x, y). - \snippet doc/src/snippets/code/doc_src_porting4-canvas.qdoc 5 + \snippet doc/src/snippets/code/doc_src_porting4-canvas.cpp 5 The second tileRect() function returns a QRect for a tile number. With these functions in place, we can implement the drawBackground() function. - \snippet doc/src/snippets/code/doc_src_porting4-canvas.qdoc 6 + \snippet doc/src/snippets/code/doc_src_porting4-canvas.cpp 6 In drawBackground(), we redraw all tiles that have been exposed by intersecting each tile rect with the exposed background @@ -522,7 +522,7 @@ For compatibility, you may want to shift the ellipse up and to the left to keep the ellipse centered. Example: - \snippet doc/src/snippets/code/doc_src_porting4-canvas.qdoc 7 + \snippet doc/src/snippets/code/doc_src_porting4-canvas.cpp 7 Note: QGraphicsEllipseItem uses QAbstractGraphicsShapeItem::pen() for outlines, whereas Q3CanvasEllipse did not use @@ -588,7 +588,7 @@ QPainterPath::moveTo() and QPainterPath::cubicTo(). Here is how you can convert a bezier curve Q3PointArray to a QPainterPath: - \snippet doc/src/snippets/code/doc_src_porting4-canvas.qdoc 8 + \snippet doc/src/snippets/code/doc_src_porting4-canvas.cpp 8 Note: QGraphicsPathItem uses QAbstractGraphicsShapeItem::pen() for outlines, whereas Q3CanvasSpline did not use @@ -653,7 +653,7 @@ functionality using Graphics View, you can load the images by using QDir: - \snippet doc/src/snippets/code/doc_src_porting4-canvas.qdoc 9 + \snippet doc/src/snippets/code/doc_src_porting4-canvas.cpp 9 \section2 Q3CanvasText |