Archived:Load, Resize image and set background image in Qt application/widget
S60 5th Edition
This code snippets shows how to load image, resize image and set image in background of widget/application. The API QPixmap() will load image using file name. API QPixmap::scaled() will returns a copy of the pixmap scaled to a rectangle with the given width and height. QPalette::setBrush() sets the brush for the given color role (here background) to the specified brush (here image)for all groups in the palette. QWidget::setPalette() set a given palette for a Widget.
This snippet can be self-signed. As it does not use any API which require developer/certified signing.
- Download and Install latest version Qt for Symbian - Installation packages which has links on how to install the latest version
//Using QPalette you can set background image as follows.
QPalette p = palette();
//Load image to QPixmap, Give full path of image
QPixmap pixmap1("c://01.JPG"); //For emulator C: is ..\epoc32\winscw\c so image must be at that location
//resize image if it is larger than screen size.
QDesktopWidget* desktopWidget = QApplication::desktop();
QRect rect = desktopWidget->availableGeometry();
QSize size(rect.width() , rect.height());
//resize as per your requirement..
The code snippet is expected to show background image in application.
- The Code Example will set image in background and example is tested on Nokia 5800 XpressMusic.