Hi,
I'm building my first small qooxdoo application and one of the tasks is to
build a layer where images can be scaled. When images are scaled bigger than
the layer they have to be scrolled. Inside this layer I'd like to scroll via
drag&drop and not only via scrollbars. I've already found the Class:
DragDropScrolling but don't know how to apply it to my Objects (and to which:
qx.ui.container.Scroll, or the inside elements?).
Here some of the code so far:
var main_container = new qx.ui.container.Composite();
var container = new qx.ui.container.Composite();
var layout_manager = new qx.ui.layout.Canvas();
var layout_manager2 = new qx.ui.layout.Canvas();
main_container.setLayout(layout_manager);
this.getRoot().add(main_container);
// how do I set an element to be drag&drop scrollable?
var ddscroll = new qx.ui.core.DragDropScrolling();
var scroll = new qx.ui.container.Scroll().set({
width: 930,
height: 610
});
scroll.set({
backgroundColor: "black",
//decorator: border,
decorator: "main"
});
main_container.add(scroll);
container.setLayout(layout_manager2);
scroll.add(container);
var big = new qx.ui.basic.Image("resource/imagetest/Image_249.jpg").set({
width : 910,
height : 545
});
big.setScale(true);
container.add(big,{
left: 10,
top: 60
});
var button = new qx.ui.form.RepeatButton(null,
"resource/imagetest/list-add.png");
main_container.add(button,{
left: 60,
top: 620
});
// Listener
button.addListener("execute", function()
{
big.setWidth(big.getHeight()*2);
big.setHeight(big.getWidth()*2);
});
var button2 = new qx.ui.form.RepeatButton(null,
"resource/imagetest/list-remove.png");
main_container.add(button2,{
left: 10,
top: 620
});
// Listener
button2.addListener("execute", function()
{
big.setWidth(big.getHeight()/2);
big.setHeight(big.getWidth()/2);
});
}
Thanks in advance!
Sebastian Stelmasik
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