Falkon/falkonOfficial
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ComboTabBar: Also use our TabBarHelper drawing code when drag is in progress

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This commit is contained in:
David Rosca 2018-01-08 09:39:33 +01:00
parent 5dfe6d862c
commit 679a5f0136
1 changed files with 32 additions and 12 deletions
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44
src/lib/tabwidget/combotabbar.cpp
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@ -1186,14 +1186,29 @@ void TabBarHelper::initStyleBaseOption(QStyleOptionTabBarBase *optTabBase, QTabB
}
// Adapted from qtabbar.cpp
void TabBarHelper::paintEvent(QPaintEvent* event)
// Note: doesn't support vertical tabs
void TabBarHelper::paintEvent(QPaintEvent *event)
{
// Note: this code doesn't support vertical tabs
if (m_dragInProgress) {
// Still needs to be called because it updates movingTab geometry
QTabBar::paintEvent(event);
return;
}
// Hack to get dragOffset from QTabBar internals
auto dragOffset = [this](QStyleOptionTab *option, int index) {
QStyle::SubElement element = QStyle::SE_TabBarTabLeftButton;
QWidget *button = tabButton(index, QTabBar::LeftSide);
if (!button) {
element = QStyle::SE_TabBarTabRightButton;
button = tabButton(index, QTabBar::RightSide);
}
if (!button) {
return 0;
}
const QPoint p = style()->subElementRect(element, option, this).topLeft();
return button->pos().x() - p.x();
};
QStyleOptionTabBarBase optTabBase;
initStyleBaseOption(&optTabBase, this, size());
@ -1208,7 +1223,7 @@ void TabBarHelper::paintEvent(QPaintEvent* event)
optTabBase.selectedTabRect = tabRect(selected);
}
if (drawBase()) {
if (!m_dragInProgress && drawBase()) {
p.drawPrimitive(QStyle::PE_FrameTabBarBase, optTabBase);
}
@ -1216,11 +1231,16 @@ void TabBarHelper::paintEvent(QPaintEvent* event)
int indexUnderMouse = isDisplayedOnViewPort(cursorPos.x(), cursorPos.x()) ? tabAt(mapFromGlobal(cursorPos)) : -1;
for (int i = 0; i < count(); ++i) {
if (i == selected) {
continue;
}
QStyleOptionTab tab;
initStyleOption(&tab, i);
if (i == selected) {
continue;
const int tabDragOffset = dragOffset(&tab, i);
if (tabDragOffset != 0) {
tab.rect.moveLeft(tab.rect.x() + tabDragOffset);
}
// Don't bother drawing a tab if the entire tab is outside of the visible tab bar.
@ -1237,10 +1257,9 @@ void TabBarHelper::paintEvent(QPaintEvent* event)
}
// Update mouseover state when scrolling
if (i == indexUnderMouse) {
if (!m_dragInProgress && i == indexUnderMouse) {
tab.state |= QStyle::State_MouseOver;
}
else {
} else {
tab.state &= ~QStyle::State_MouseOver;
}
@ -1255,8 +1274,7 @@ void TabBarHelper::paintEvent(QPaintEvent* event)
// Update mouseover state when scrolling
if (selected == indexUnderMouse) {
tab.state |= QStyle::State_MouseOver;
}
else {
} else {
tab.state &= ~QStyle::State_MouseOver;
}
@ -1272,7 +1290,9 @@ void TabBarHelper::paintEvent(QPaintEvent* event)
tab.state = tab.state & ~QStyle::State_Selected;
}
p.drawControl(QStyle::CE_TabBarTab, tab);
if (!m_dragInProgress) {
p.drawControl(QStyle::CE_TabBarTab, tab);
}
}
// Draw drop indicator