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| ** This file is part of the Qt Quick Extras module of the Qt Toolkit. |
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| |
| import QtQuick 2.3 |
| import QtQuick.Extras 1.4 |
| import QtQuick.Extras.Private 1.0 |
| import QtQuick.Extras.Private.CppUtils 1.0 |
| |
| Loader { |
| id: iconLoader |
| active: iconSource != "" |
| |
| property PieMenu control: null |
| property QtObject styleData: null |
| |
| readonly property string iconSource: styleData && styleData.index < control.__protectedScope.visibleItems.length |
| ? control.__protectedScope.visibleItems[styleData.index].iconSource |
| : "" |
| |
| sourceComponent: Image { |
| id: iconImage |
| source: iconSource |
| x: pos.x |
| y: pos.y |
| scale: scaleFactor |
| |
| readonly property point pos: MathUtils.centerAlongCircle( |
| iconLoader.parent.width / 2, iconLoader.parent.height / 2, width, height, |
| MathUtils.degToRadOffset(sectionCenterAngle(styleData.index)), control.__style.__iconOffset) |
| |
| /* |
| The icons should scale with the menu at some point, so that they |
| stay within the bounds of each section. We down-scale the image by |
| whichever of the following amounts are larger: |
| |
| a) The amount by which the largest dimension's diagonal size exceeds |
| the "selectable" radius. The selectable radius is the distance in pixels |
| between lines A and B in the incredibly visually appealing image below: |
| |
| __________ |
| - B - |
| / \ |
| / ____ \ |
| | / A \ | |
| --------| |-------- |
| |
| b) The amount by which the diagonal exceeds the circumference of |
| one section. |
| */ |
| readonly property real scaleFactor: { |
| var largestDimension = Math.max(iconImage.sourceSize.width, iconImage.sourceSize.height) * Math.sqrt(2); |
| // TODO: add padding |
| var radiusDifference = largestDimension - control.__style.__selectableRadius; |
| var circumferenceDifference = largestDimension - Math.abs(control.__protectedScope.circumferenceOfSection); |
| if (circumferenceDifference > 0 || radiusDifference > 0) { |
| // We need to down-scale. |
| if (radiusDifference > circumferenceDifference) { |
| return control.__style.__selectableRadius / largestDimension; |
| } else { |
| return Math.abs(control.__protectedScope.circumferenceOfSection) / largestDimension; |
| } |
| } |
| return 1; |
| } |
| } |
| } |