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50
51import QtQuick 2.9
52import QtQuick.Shapes 1.0
53
54Rectangle {
55    id: root
56    width: 1024
57    height: 768
58
59    property color col: "lightsteelblue"
60    gradient: Gradient {
61        GradientStop { position: 0.0; color: Qt.tint(root.col, "#20FFFFFF") }
62        GradientStop { position: 0.1; color: Qt.tint(root.col, "#20AAAAAA") }
63        GradientStop { position: 0.9; color: Qt.tint(root.col, "#20666666") }
64        GradientStop { position: 1.0; color: Qt.tint(root.col, "#20000000") }
65    }
66
67    Row {
68        anchors.fill: parent
69        anchors.margins: 20
70        spacing: 40
71
72        Column {
73            spacing: 40
74
75            Text {
76                text: "Original"
77            }
78
79            // A simple Shape without anything special.
80            Rectangle {
81                color: "lightGray"
82                width: 400
83                height: 200
84
85                Shape {
86                    x: 30
87                    y: 20
88                    width: 50
89                    height: 50
90                    scale: 2
91
92                    ShapePath {
93                        strokeColor: "green"
94                        NumberAnimation on strokeWidth { from: 1; to: 20; duration: 5000 }
95                        fillColor: "transparent"
96                        capStyle: ShapePath.RoundCap
97
98                        startX: 40; startY: 30
99                        PathQuad { x: 50; y: 80; controlX: 0; controlY: 80 }
100                        PathLine { x: 150; y: 80 }
101                        PathQuad { x: 160; y: 30; controlX: 200; controlY: 80 }
102                    }
103                }
104            }
105
106            Text {
107                text: "Supersampling (2x)"
108            }
109
110            // Now let's use 2x supersampling via layers. This way the entire subtree
111            // is rendered into an FBO twice the size and then drawn with linear
112            // filtering. This allows having some level of AA even when there is no
113            // support for multisample framebuffers.
114            Rectangle {
115                id: supersampledItem
116                color: "lightGray"
117                width: 400
118                height: 200
119
120                layer.enabled: true
121                layer.smooth: true
122                layer.textureSize: Qt.size(supersampledItem.width * 2, supersampledItem.height * 2)
123
124                Shape {
125                    x: 30
126                    y: 20
127                    width: 50
128                    height: 50
129                    scale: 2
130
131                    ShapePath {
132                        strokeColor: "green"
133                        NumberAnimation on strokeWidth { from: 1; to: 20; duration: 5000 }
134                        fillColor: "transparent"
135                        capStyle: ShapePath.RoundCap
136
137                        startX: 40; startY: 30
138                        PathQuad { x: 50; y: 80; controlX: 0; controlY: 80 }
139                        PathLine { x: 150; y: 80 }
140                        PathQuad { x: 160; y: 30; controlX: 200; controlY: 80 }
141                    }
142                }
143            }
144        }
145
146        Column {
147            spacing: 40
148
149            Text {
150                text: "Multisampling (4x)"
151            }
152
153            // Now let's use 4x MSAA, again via layers. This needs support for
154            // multisample renderbuffers and framebuffer blits.
155            Rectangle {
156                color: "lightGray"
157                width: 400
158                height: 200
159
160                layer.enabled: true
161                layer.smooth: true
162                layer.samples: 4
163
164                Shape {
165                    x: 30
166                    y: 20
167                    width: 50
168                    height: 50
169                    scale: 2
170
171                    ShapePath {
172                        strokeColor: "green"
173                        NumberAnimation on strokeWidth { from: 1; to: 20; duration: 5000 }
174                        fillColor: "transparent"
175                        capStyle: ShapePath.RoundCap
176
177                        startX: 40; startY: 30
178                        PathQuad { x: 50; y: 80; controlX: 0; controlY: 80 }
179                        PathLine { x: 150; y: 80 }
180                        PathQuad { x: 160; y: 30; controlX: 200; controlY: 80 }
181                    }
182                }
183            }
184        }
185    }
186}
187