2 * Copyright (C) 2013 Canonical, Ltd.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 3.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 import Ubuntu.Components 1.1
23 property string iconName
25 property bool countVisible: false
26 property int progress: -1
27 property bool itemFocused: false
28 property real maxAngle: 0
29 property bool inverted: false
30 property bool alerting: false
31 readonly property alias wiggling: wiggleAnim.running
33 readonly property int effectiveHeight: Math.cos(angle * Math.PI / 180) * itemHeight
34 readonly property real foldedHeight: Math.cos(maxAngle * Math.PI / 180) * itemHeight
36 property int itemWidth
37 property int itemHeight
38 // The angle used for rotating
39 property real angle: 0
40 // This is the offset that keeps the items inside the panel
41 property real offset: 0
42 property real itemOpacity: 1
43 property real brightness: 0
44 property double maxWiggleAngle: 5.0
49 readonly property int wiggleDuration: UbuntuAnimation.SnapDuration
50 property real wiggleAngle: 0
62 property: "wiggleAngle"
65 duration: priv.wiggleDuration
66 easing.type: Easing.InQuad
71 property: "wiggleAngle"
74 duration: priv.wiggleDuration
75 easing.type: Easing.InOutQuad
80 property: "wiggleAngle"
83 duration: priv.wiggleDuration
84 easing.type: Easing.InOutQuad
89 property: "wiggleAngle"
92 duration: priv.wiggleDuration
93 easing.type: Easing.InOutQuad
98 property: "wiggleAngle"
101 duration: priv.wiggleDuration
102 easing.type: Easing.InOutQuad
107 property: "wiggleAngle"
110 duration: priv.wiggleDuration
111 easing.type: Easing.OutQuad
114 UbuntuNumberAnimation {
123 width: parent.itemWidth + units.gu(1)
124 height: parent.itemHeight + units.gu(1)
125 anchors.centerIn: parent
130 anchors.margins: units.gu(1)
136 sourceSize.width: iconShape.width
137 sourceSize.height: iconShape.height
138 fillMode: Image.PreserveAspectCrop
139 source: root.iconName
145 anchors.centerIn: iconItem
146 source: "graphics/icon-top-highlight.png"
147 width: root.itemWidth - units.gu(1)
148 height: root.itemHeight - units.gu(1)
153 objectName: "countEmblem"
156 bottom: parent.bottom
159 width: Math.min(root.itemWidth, Math.max(units.gu(2), countLabel.implicitWidth + units.gu(1)))
161 color: UbuntuColors.orange
162 visible: root.countVisible
167 objectName: "countLabel"
169 anchors.centerIn: parent
170 // FIXME: verticalCenter seems to be off wee bit and QML doesn't have a centerLine
171 // property for Text: https://bugreports.qt-project.org/browse/QTBUG-40479
172 anchors.verticalCenterOffset: -units.dp(.5)
173 width: root.itemWidth - units.gu(1)
174 horizontalAlignment: Text.AlignHCenter
175 elide: Text.ElideRight
183 objectName: "progressOverlay"
187 right: iconItem.right
188 verticalCenter: parent.verticalCenter
189 leftMargin: units.gu(1.5)
190 rightMargin: units.gu(1.5)
193 visible: root.progress > -1
194 color: UbuntuColors.darkGrey
201 bottom: parent.bottom
203 width: Math.min(100, root.progress) / 100 * parent.width
210 bottom: parent.bottom
214 width: progressOverlay.width
220 objectName: "focusedHighlight"
223 verticalCenter: parent.verticalCenter
225 visible: root.itemFocused
226 source: "graphics/focused_app_arrow.png"
232 anchors.centerIn: parent
233 anchors.verticalCenterOffset: root.offset
234 width: iconItem.width
235 height: iconItem.height
236 property real itemOpacity: root.itemOpacity
237 property real brightness: Math.max(-1, root.brightness)
238 property real angle: root.angle
239 rotation: root.inverted ? 180 : 0
241 property variant source: ShaderEffectSource {
242 id: shaderEffectSource
248 // The rotation about the icon's center/z-axis for the wiggle
249 // needs to happen here too, because there's no other way to
250 // align the wiggle with the icon-folding otherwise
252 axis { x: 0; y: 0; z: 1 }
253 origin { x: iconItem.width / 2; y: iconItem.height / 2; z: 0 }
254 angle: priv.wiggleAngle
256 // Rotating 3 times at top/bottom because that increases the perspective.
257 // This is a hack, but as QML does not support real 3D coordinates
258 // getting a higher perspective can only be done by a hack. This is the most
259 // readable/understandable one I could come up with.
261 axis { x: 1; y: 0; z: 0 }
262 origin { x: iconItem.width / 2; y: angle > 0 ? 0 : iconItem.height; z: 0 }
263 angle: root.angle * 0.7
266 axis { x: 1; y: 0; z: 0 }
267 origin { x: iconItem.width / 2; y: angle > 0 ? 0 : iconItem.height; z: 0 }
268 angle: root.angle * 0.7
271 axis { x: 1; y: 0; z: 0 }
272 origin { x: iconItem.width / 2; y: angle > 0 ? 0 : iconItem.height; z: 0 }
273 angle: root.angle * 0.7
275 // Because rotating it 3 times moves it more to the front/back, i.e. it gets
276 // bigger/smaller and we need a scale to compensate that again.
278 xScale: 1 - (Math.abs(angle) / 500)
279 yScale: 1 - (Math.abs(angle) / 500)
280 origin { x: iconItem.width / 2; y: iconItem.height / 2}
284 // Using a fragment shader instead of QML's opacity and BrightnessContrast
285 // to be able to do both in one step which gives quite some better performance
287 varying highp vec2 qt_TexCoord0;
288 uniform sampler2D source;
289 uniform lowp float brightness;
290 uniform lowp float itemOpacity;
293 highp vec4 sourceColor = texture2D(source, qt_TexCoord0);
294 sourceColor.rgb = mix(sourceColor.rgb, vec3(step(0.0, brightness)), abs(brightness));
295 sourceColor *= itemOpacity;
296 gl_FragColor = sourceColor;