void StGLScrollArea::stglResize() {
StGLWidget* aContent = myChildren.getStart();
StGLContext& aCtx = getContext();
if(!isScrollable()
&& aContent != NULL
&& aContent->getRectPx().top() < 0
&& aContent->getCorner().v == ST_VCORNER_TOP) {
const int aDelta = -aContent->getRectPx().top();
aContent->changeRectPx().top() += aDelta;
aContent->changeRectPx().bottom() += aDelta;
}
if(isScrollable()
&& aContent != NULL) {
const int aSizeY = stMax(getRectPx().height(), 1);
const int aContSizeY = aContent->getRectPx().height();
const double aScaleY = double(aSizeY) / double(aContSizeY);
const int aScrollSizeY = stMax(int(aScaleY * (double )aSizeY), myRoot->scale(4));
const double aPosY = double(-aContent->getRectPx().top()) / double(aContSizeY - aSizeY);
StArray<StGLVec2> aVertices(4);
StRectI_t aRectPx = getRectPxAbsolute();
aRectPx.left() = aRectPx.right() - myRoot->scale(2);
aRectPx.top() += int(aPosY * double(aSizeY - aScrollSizeY));
aRectPx.bottom() = aRectPx.top() + aScrollSizeY;
myRoot->getRectGl(aRectPx, aVertices);
myBarVertBuf.init(aCtx, aVertices);
} else {
myBarVertBuf.release(aCtx);
}
StGLWidget::stglResize();
}
bool StGLSwitchTextured::stglInit() {
bool isOK = StGLWidget::stglInit();
StGLWidget* aChild = getChildren()->getStart();
if(aChild != NULL) {
// just upsacle to fit children
changeRectPx().right() = getRectPx().left() + aChild->getRectPx().width();
changeRectPx().bottom() = getRectPx().top() + aChild->getRectPx().height();
}
return isOK;
}
bool StGLScrollArea::doScroll(const int theDelta,
const bool theIsFling) {
if(!theIsFling) {
myDragYDelta = 0.0;
myFlingTimer.stop();
}
if(!isScrollable()) {
return false;
}
StGLWidget* aContent = myChildren.getStart();
const int aMinLim = 0;
const int aMaxLim = getRectPx().height() - aContent->getRectPx().height();
const int aTopOld = aContent->getRectPx().top();
const int aTopNew = stMax(stMin(aMinLim, aTopOld + theDelta), aMaxLim);
const int aDelta = aTopNew - aTopOld;
if(aDelta == 0) {
if(theIsFling) {
myFlingTimer.stop();
}
return false;
}
aContent->changeRectPx().top() += aDelta;
aContent->changeRectPx().bottom() += aDelta;
if(myIsLeftClick) {
if(!theIsFling) {
myDragYCumul += aDelta;
if(std::abs(myDragYCumul) > myRoot->getClickThreshold()
&& !myHasDragged) {
setClickedWithChildren(myChildren, ST_MOUSE_LEFT, false);
myHasDragged = true;
}
} else {
myDragYCumul = 0;
}
}
myIsResized = true;
return true;
}
bool StGLMenu::stglInit() {
myWidth = 0;
myIsInitialized = StGLWidget::stglInit();
if(!myIsInitialized) {
return false;
}
int aMarginLeft = 0;
for(StGLWidget* aChild = getChildren()->getStart(); aChild != NULL; aChild = aChild->getNext()) {
StGLMenuItem* anItem = (StGLMenuItem* )aChild;
aMarginLeft = stMax(aMarginLeft, anItem->getMargins().left);
int anItemW = anItem->getMargins().left + anItem->computeTextWidth() + anItem->getMargins().right;
if(myOrient == MENU_HORIZONTAL) {
anItem->changeRectPx().moveLeftTo(myWidth);
anItem->changeRectPx().right() = anItem->getRectPx().left() + anItemW;
anItem->setTextWidth(anItemW - anItem->getMargins().left);
myWidth += anItemW;
} else {
myWidth = stMax(myWidth, anItemW);
}
if(anItem->getSubMenu() != NULL) {
if(myOrient == MENU_HORIZONTAL) {
anItem->getSubMenu()->changeRectPx().moveTopLeftTo(anItem->getRectPxAbsolute().left(), anItem->getRectPxAbsolute().bottom());
} else if(myOrient == MENU_VERTICAL
|| myOrient == MENU_VERTICAL_COMPACT) {
anItem->getSubMenu()->changeRectPx().moveTopLeftTo(anItem->getRectPxAbsolute().right() - myRoot->scale(10),
anItem->getRectPxAbsolute().top());
}
}
}
StGLWidget* aChildLast = getChildren()->getLast();
if(aChildLast != NULL) {
changeRectPx().right() = getRectPx().left() + aChildLast->getRectPx().right();
changeRectPx().bottom() = getRectPx().top() + aChildLast->getRectPx().bottom();
}
int aWidth = stMax(myWidthMin, myWidth);
if(myOrient == MENU_VERTICAL
|| myOrient == MENU_VERTICAL_COMPACT) {
changeRectPx().right() = getRectPx().left() + aWidth;
int anItemCount = 0;
for(StGLWidget* aChild = getChildren()->getStart(); aChild != NULL; aChild = aChild->getNext(), ++anItemCount) {
StGLMenuItem* anItem = (StGLMenuItem* )aChild;
anItem->changeRectPx().moveTopTo(anItemCount * myItemHeight);
anItem->changeRectPx().right() = anItem->getRectPx().left() + aWidth;
anItem->setTextWidth(aWidth);
if(anItem->getSubMenu() != NULL) {
anItem->getSubMenu()->changeRectPx().moveTopLeftTo(getRectPxAbsolute().right() - myRoot->scale(10),
anItem->getRectPxAbsolute().top());
}
}
changeRectPx().bottom() = getRectPx().top() + anItemCount * myItemHeight;
}
// already initialized?
if(myVertexBuf.isValid()) {
// synchronize menu items visibility
setOpacity(myOpacity, true);
return true;
}
stglResize();
return myIsInitialized;
}