File: SourceRect.qml

package info (click to toggle)
qtdeclarative-opensource-src 5.3.2-4~bpo70%2B4
  • links: PTS, VCS
  • area: main
  • in suites: wheezy-backports
  • size: 75,780 kB
  • sloc: cpp: 354,437; xml: 8,608; ansic: 2,512; python: 940; sh: 702; perl: 50; makefile: 34; php: 27
file content (33 lines) | stat: -rw-r--r-- 785 bytes parent folder | download | duplicates (12)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
import QtQuick 2.0

Item
{
    width: 200
    height: 100

    Rectangle {
        id: box
        width: 200
        height: 100

        color: "#ff0000"

        layer.enabled: true
        layer.sourceRect: Qt.rect(-10, -10, box.width + 20, box.height + 20);

        // A shader that pads the transparent pixels with blue.
        layer.effect: ShaderEffect {
            fragmentShader: "
            uniform lowp sampler2D source;
            uniform lowp float qt_Opacity;
            varying highp vec2 qt_TexCoord0;
            void main() {
                mediump vec4 c = texture2D(source, qt_TexCoord0);
                if (c.a == 0.0)
                    c = vec4(0, 0, 1, 1);
                gl_FragColor = c * qt_Opacity;
            }
            "
        }
    }
}