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59 lines
2.2 KiB
C++
59 lines
2.2 KiB
C++
#include <escher/gauge_view.h>
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#include <escher/palette.h>
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const uint8_t gaugeIndicatorMask[GaugeView::k_indicatorDiameter][GaugeView::k_indicatorDiameter] = {
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{0xFF, 0xFF, 0xE1, 0x0C, 0x00, 0x00, 0x0C, 0xE1, 0xFF, 0xFF},
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{0xFF, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x45, 0xFF},
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{0xE1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1},
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{0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C},
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{0xE1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1},
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{0xFF, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x45, 0xFF},
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{0xFF, 0xFF, 0xE1, 0x0C, 0x00, 0x00, 0x0C, 0xE1, 0xFF, 0xFF},
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};
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GaugeView::GaugeView() :
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m_level(1),
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m_backgroundColor(Palette::ListCellBackground)
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{
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}
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float GaugeView::level() {
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return m_level;
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}
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void GaugeView::setLevel(float level) {
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if (m_level != level) {
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level = level < 0 ? 0 : level;
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level = level > 1 ? 1 : level;
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m_level = level;
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markRectAsDirty(bounds());
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}
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}
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void GaugeView::setBackgroundColor(KDColor color) {
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if (m_backgroundColor != color) {
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m_backgroundColor = color;
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markRectAsDirty(bounds());
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}
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}
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void GaugeView::drawRect(KDContext * ctx, KDRect rect) const {
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ctx->fillRect(bounds(), m_backgroundColor);
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/* Draw the gauge centered vertically on all the width available */
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KDCoordinate width = bounds().width()-k_indicatorDiameter;
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KDCoordinate height = bounds().height();
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KDColor gaugeIndicatorWorkingBuffer[GaugeView::k_indicatorDiameter*GaugeView::k_indicatorDiameter];
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ctx->fillRect(KDRect(k_indicatorDiameter/2, (height-k_thickness)/2, width*m_level, k_thickness), Palette::ControlEnabled);
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ctx->fillRect(KDRect(k_indicatorDiameter/2+width*m_level, (height-k_thickness)/2, width*(1.0f-m_level), k_thickness), Palette::ControlDisabled);
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KDRect frame(width*m_level, (height-k_indicatorDiameter)/2, k_indicatorDiameter, k_indicatorDiameter);
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ctx->blendRectWithMask(frame, Palette::Control, (const uint8_t *)gaugeIndicatorMask, gaugeIndicatorWorkingBuffer);
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}
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KDSize GaugeView::minimalSizeForOptimalDisplay() const {
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return KDSize(12*k_indicatorDiameter, k_indicatorDiameter);
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}
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