WIP: Android 5.0: add missing vector drawable support

Task-number: QTBUG-42520
Change-Id: I730c8ba89c957a2090b49a873f0dbabbf9581feb

5 files changed, 365 insertions, 2 deletions

diff --git a/src/controls/Styles/Android/Android.pro b/src/controls/Styles/Android/Android.pro
index 64b76a65a..f7a23d182 100644
--- a/src/controls/Styles/Android/Android.pro
+++ b/src/controls/Styles/Android/Android.pro
@@ -41,7 +41,10 @@ QML_FILES += \
     $$PWD/drawables/LayerDrawable.qml \
     $$PWD/drawables/NinePatchDrawable.qml \
     $$PWD/drawables/RotateDrawable.qml \
-    $$PWD/drawables/StateDrawable.qml
+    $$PWD/drawables/StateDrawable.qml \
+    $$PWD/drawables/VectorDrawable.qml \
+    $$PWD/drawables/VectorGroupDrawable.qml \
+    $$PWD/drawables/VectorPathDrawable.qml
 
 HEADERS += \
     $$PWD/qquickandroid9patch_p.h \
diff --git a/src/controls/Styles/Android/drawables/DrawableLoader.qml b/src/controls/Styles/Android/drawables/DrawableLoader.qml
index 4dd82c03e..878ad914a 100644
--- a/src/controls/Styles/Android/drawables/DrawableLoader.qml
+++ b/src/controls/Styles/Android/drawables/DrawableLoader.qml
@@ -84,7 +84,8 @@ Loader {
                      type === "layer" ? Qt.createComponent("LayerDrawable.qml") :
                      type === "9patch" ? Qt.createComponent("NinePatchDrawable.qml") :
                      type === "rotate" ? Qt.createComponent("RotateDrawable.qml") :
-                     type === "stateslist" ? Qt.createComponent("StateDrawable.qml") : null
+                     type === "stateslist" ? Qt.createComponent("StateDrawable.qml") :
+                     type === "vector" ? Qt.createComponent("VectorDrawable.qml") : null
 
     Binding { target: loader.item; property: "styleDef"; value: loader.styleDef }
     Binding { target: loader.item; property: "focused"; value: loader.focused }
diff --git a/src/controls/Styles/Android/drawables/VectorDrawable.qml b/src/controls/Styles/Android/drawables/VectorDrawable.qml
new file mode 100644
index 000000000..c2181c33c
--- /dev/null
+++ b/src/controls/Styles/Android/drawables/VectorDrawable.qml
@@ -0,0 +1,86 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Controls module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
+**     of its contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.2
+import QtQuick.Controls.Styles.Android 1.0
+
+Drawable {
+    id: root
+
+    implicitWidth: styleDef.baseWidth || styleDef.width || 0
+    implicitHeight: styleDef.baseHeight || styleDef.height || 0
+
+    VectorGroupDrawable {
+        id: group
+        anchors.fill: parent
+        styleDef: root.styleDef.rootGroup
+        // opacity: root.styleDef.rootAlpha / 255.0
+        viewportWidth: root.styleDef.viewportWidth
+        viewportHeight: root.styleDef.viewportHeight
+    }
+
+    layer.enabled: !!styleDef && !!styleDef.tintList
+    layer.effect: ShaderEffect {
+        property variant source: image
+        property color color: AndroidStyle.colorValue(styleDef.tintList[state])
+        state: {
+            var states = []
+            if (pressed) states.push("PRESSED")
+            if (enabled) states.push("ENABLED")
+            if (focused) states.push("FOCUSED")
+            if (selected) states.push("SELECTED")
+            if (window_focused) states.push("WINDOW_FOCUSED")
+            if (!states.length)
+                states.push("EMPTY")
+            return states.join("_") + "_STATE_SET"
+        }
+        // QtGraphicalEffects/ColorOverlay:
+        fragmentShader: "
+            varying mediump vec2 qt_TexCoord0;
+            uniform highp float qt_Opacity;
+            uniform lowp sampler2D source;
+            uniform highp vec4 color;
+            void main() {
+                highp vec4 pixelColor = texture2D(source, qt_TexCoord0);
+                gl_FragColor = vec4(mix(pixelColor.rgb/max(pixelColor.a, 0.00390625), color.rgb/max(color.a, 0.00390625), color.a) * pixelColor.a, pixelColor.a) * qt_Opacity;
+            }
+        "
+    }
+}
diff --git a/src/controls/Styles/Android/drawables/VectorGroupDrawable.qml b/src/controls/Styles/Android/drawables/VectorGroupDrawable.qml
new file mode 100644
index 000000000..b75f6f278
--- /dev/null
+++ b/src/controls/Styles/Android/drawables/VectorGroupDrawable.qml
@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Controls module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
+**     of its contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.2
+
+Item {
+    id: root
+
+    property var styleDef
+    property real viewportWidth
+    property real viewportHeight
+
+//    transform: [
+//        Rotation {
+//            angle: styleDef.rotate
+//            origin.x: styleDef.pivotX
+//            origin.y: styleDef.pivotY
+//        },
+//        Scale {
+//            xScale: styleDef.scaleX
+//            yScale: styleDef.scaleY
+//            origin.x: styleDef.pivotX
+//            origin.y: styleDef.pivotY
+//        },
+//        Translate {
+//            x: styleDef.translateX
+//            y: styleDef.translateY
+//        }
+//    ]
+
+    Repeater {
+        anchors.fill: parent
+        model: styleDef.children
+        Loader {
+            anchors.fill: parent
+            sourceComponent: styleDef.type === "group" ? Qt.createComponent("VectorGroupDrawable.qml") :
+                             styleDef.type === "path"  ? Qt.createComponent("VectorPathDrawable.qml") : ""
+
+            Binding { target: item; property: "styleDef"; value: modelData }
+            Binding { target: item; property: "viewportWidth"; value: root.viewportWidth }
+            Binding { target: item; property: "viewportHeight"; value: root.viewportHeight }
+        }
+    }
+}
diff --git a/src/controls/Styles/Android/drawables/VectorPathDrawable.qml b/src/controls/Styles/Android/drawables/VectorPathDrawable.qml
new file mode 100644
index 000000000..dfd4bf8e7
--- /dev/null
+++ b/src/controls/Styles/Android/drawables/VectorPathDrawable.qml
@@ -0,0 +1,192 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Controls module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
+**     of its contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.2
+import QtQuick.Controls.Styles.Android 1.0
+
+Canvas {
+    id: root
+
+    property var styleDef
+    property real viewportWidth
+    property real viewportHeight
+
+    clip: styleDef.isClip
+    canvasSize: Qt.size(viewportWidth, viewportHeight)
+
+    readonly property color fillColor: AndroidStyle.colorValue(styleDef.fillColor)
+    readonly property color strokeColor: AndroidStyle.colorValue(styleDef.strokeColor)
+
+    fillStyle: Qt.rgba(fillColor.r, fillColor.g, fillColor.b, styleDef.fillAlpha)
+    strokeStyle: Qt.rgba(strokeColor.r, strokeColor.g, strokeColor.b, strokeColor.strokeAlpha)
+
+    lineCap: styleDef.strokeLineCap.toLowerCase()
+    lineJoin: styleDef.strokeLineJoin.toLowerCase()
+    lineWidth: styleDef.strokeWidth
+    miterLimit: styleDef.strokeMiterlimit
+
+    // TODO:
+    // - styleDef.fillRule (VectorPathDrawable.VFullPath.mFillRule is unused)
+    // - styleDef.trimPathStart
+    // - styleDef.trimPathEnd
+    // - styleDef.trimPathOffset
+
+    onPaint:{
+        var ctx = canvas.getContext('2d')
+        for (var i = 0; i < styleDef.nodes.length; ++i) {
+            var currentX = 0
+            var currentY = 0
+            var ctrlPointX = 0
+            var ctrlPointY = 0
+            var reflectiveCtrlPointX = 0
+            var reflectiveCtrlPointY = 0
+            var cmd = styleDef.nodes[i].type
+            var params = styleDef.nodes[i].params
+            var previousCmd = ''
+            switch (cmd) {
+                case 'm': // moveto - Start a new sub-path (relative)
+                    currentX += params[0]
+                    currentY += params[1]
+                    ctx.moveTo(currentX, currentY)
+                    break;
+                case 'M': // moveto - Start a new sub-path
+                    currentX = params[0]
+                    currentY = params[1]
+                    ctx.moveTo(currentX, currentY)
+                    break;
+                case 'l': // lineto - Draw a line from the current point (relative)
+                    currentX += params[0]
+                    currentY += params[1]
+                    ctx.lineTo(currentX, currentY)
+                    break;
+                case 'L': // lineto - Draw a line from the current point
+                    currentX = params[0]
+                    currentY = params[1]
+                    ctx.lineTo(currentX, currentY)
+                    break;
+                case 'z': // closepath - Close the current subpath
+                case 'Z': // closepath - Close the current subpath
+                    ctx.closePath()
+                    break;
+                case 'h': // horizontal lineto - Draws a horizontal line (relative)
+                    currentX += params[0]
+                    ctx.lineTo(currentX, currentY)
+                    break;
+                case 'H': // horizontal lineto - Draws a horizontal line
+                    currentX = params[0]
+                    ctx.lineTo(currentX, currentY)
+                    break;
+                case 'v': // vertical lineto - Draws a vertical line from the current point (relative)
+                    currentY += params[0]
+                    ctx.lineTo(currentX, currentY)
+                    break;
+                case 'V': // vertical lineto - Draws a vertical line from the current point
+                    currentY = params[0]
+                    ctx.lineTo(currentX, currentY)
+                    break;
+                case 'c': // curveto - Draws a cubic Bézier curve (relative)
+                    ctrlPointX = currentX + params[2]
+                    ctrlPointY = currentY + params[3]
+                    currentX += params[4]
+                    currentY += params[5]
+                    ctx.bezierCurveTo(params[0], params[1], ctrlPointX, ctrlPointY, currentX, currentY)
+                    break;
+                case 'C': // curveto - Draws a cubic Bézier curve
+                    ctrlPointX = params[2]
+                    ctrlPointY = params[3]
+                    currentX = params[4]
+                    currentY = params[5]
+                    ctx.bezierCurveTo(params[0], params[1], ctrlPointX, ctrlPointY, currentX, currentY)
+                    break;
+                case 's': // smooth curveto - Draws a cubic Bézier curve (reflective control point)
+                    break;
+                case 'S': // shorthand/smooth curveto Draws a cubic Bézier curve (reflective control point)
+                    break;
+                case 'q': // Draws a quadratic Bézier (relative)
+                    ctrlPointX = currentX + params[0]
+                    ctrlPointY = currentY + params[1]
+                    currentX += params[2]
+                    currentY += params[3]
+                    ctx.quadraticCurveTo(ctrlPointX, ctrlPointY, currentX, currentY)
+                    break;
+                case 'Q': // Draws a quadratic Bézier
+                    ctrlPointX = params[0]
+                    ctrlPointY = params[1]
+                    currentX = params[2]
+                    currentY = params[3]
+                    ctx.quadraticCurveTo(ctrlPointX, ctrlPointY, currentX, currentY)
+                    break;
+                case 't': // Draws a quadratic Bézier curve (reflective control point) (relative)
+                    reflectiveCtrlPointX = 0
+                    reflectiveCtrlPointY = 0
+                    if (previousCmd == 'q' || previousCmd == 't' || previousCmd == 'Q' || previousCmd == 'T') {
+                        reflectiveCtrlPointX = currentX - ctrlPointX
+                        reflectiveCtrlPointY = currentY - ctrlPointY
+                    }
+                    ctrlPointX = currentX + reflectiveCtrlPointX
+                    ctrlPointY = currentY + reflectiveCtrlPointY
+                    currentX += params[0]
+                    currentY += params[1]
+                    ctx.quadraticCurveTo(reflectiveCtrlPointX, reflectiveCtrlPointY, currentX, currentY)
+                    break;
+                case 'T': // Draws a quadratic Bézier curve (reflective control point)
+                    reflectiveCtrlPointX = currentX
+                    reflectiveCtrlPointY = currentY
+                    if (previousCmd == 'q' || previousCmd == 't' || previousCmd == 'Q' || previousCmd == 'T') {
+                        reflectiveCtrlPointX = 2 * currentX - ctrlPointX
+                        reflectiveCtrlPointY = 2 * currentY - ctrlPointY
+                    }
+                    ctrlPointX = reflectiveCtrlPointX
+                    ctrlPointY = reflectiveCtrlPointY
+                    currentX = params[0]
+                    currentY = params[1]
+                    ctx.quadraticCurveTo(reflectiveCtrlPointX, reflectiveCtrlPointY, currentX, currentY)
+                    break;
+                case 'a': // Draws an elliptical arc
+                    // ### TODO
+                    break;
+                case 'A': // Draws an elliptical arc
+                    // ### TODO
+                    break;
+            }
+            previousCmd = node.type
+        }
+    }
+}