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make numberpicker's textgradient compatible with fadingedge
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3690137d1a
commit
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@ -1024,8 +1024,29 @@ void NumberPicker::onDraw(Canvas&canvas){
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canvas.clip();
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}
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}
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canvas.set_color(mTextColor);
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if( mTextColor != mTextColor2 ){
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if( mPat == nullptr ) {
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Color c1(mTextColor), c2(mTextColor2);
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CycleInterpolator ci(0.5f);
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if(isHorizontalMode())
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mPat = Cairo::LinearGradient::create(0/*x + mSelectorElementSize/2*/,0,/*x + mSelectorElementSize/2 +*/ getWidth(),0);
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else
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mPat = Cairo::LinearGradient::create(0,0/*y + mSelectorElementSize/2*/,0,/*y + mSelectorElementSize/2 +*/ getHeight());
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const int cStops = mSelectorIndices.size()*3;
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for(int i = 0; i < cStops ;i++){
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const float offset = (i<cStops/2)?sin(M_PI*i/(cStops-1))/2.f:(1.f+sin(M_PI*i/(cStops-1))/2.f);//float(i)/cStops;
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const float fraction = ci.getInterpolation(offset);
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mPat->add_color_stop_rgba(offset,lerp(c2.red(),c1.red(),fraction),
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lerp(c2.green(),c1.green(),fraction),
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lerp(c2.blue(),c1.blue(),fraction),
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std::abs(lerp(c2.alpha(),c1.alpha(),fraction)));
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LOGV("[%d] offset=%.2f/%f fraction=%f alpha=%f",i,float(i)/cStops,offset,fraction,lerp(c2.alpha(),c1.alpha(),fraction));
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}
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}
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canvas.set_source(mPat);
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}else{
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canvas.set_color(mTextColor);
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}
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canvas.set_font_size(mTextSize);
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// draw the selector wheel
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std::vector<int>& selectorIndices = mSelectorIndices;
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@ -1330,6 +1351,8 @@ void NumberPicker::initializeSelectorWheel(){
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}
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void NumberPicker::initializeFadingEdges(){
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if(mTextColor!=mTextColor2)
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return;
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if(isHorizontalMode()){
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setHorizontalFadingEdgeEnabled(true);
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setVerticalFadingEdgeEnabled(false);
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@ -53,7 +53,7 @@ private:
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bool mComputeMaxWidth;
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int mTextSize,mTextSize2;
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int mSelectedTextSize;
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int mTextColor;
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int mTextColor,mTextColor2;
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int mSelectedTextColor;
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int mSelectorTextGapWidth;
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int mSelectorTextGapHeight;
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@ -113,10 +113,10 @@ private:
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int mLastHoveredChildVirtualViewId;
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bool mIncrementVirtualButtonPressed;
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bool mDecrementVirtualButtonPressed;
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int mLastHandledDownDpadKeyCode = -1;
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int mLastHandledDownDpadKeyCode;
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bool mHideWheelUntilFocused;
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bool mWrapSelectorWheelPreferred=true;
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bool mWrapSelectorWheelPreferred;
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Cairo::RefPtr<Cairo::LinearGradient>mPat;
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//PressedStateHelper's members
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Runnable mPressedStateHelpers;
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int mPSHManagedButton;
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