def __getStyleOption(self, row, col):
tab = self.__tabAt(row, col)
if not tab: return None
opt = QStyleOptionTab()
opt.initFrom(self)
opt.state &= ~(QStyle.State_HasFocus | QStyle.State_MouseOver)
opt.rect = self.tabRect(row, col)
isCurrent = (row, col) == self.__selectedIndex
opt.row = 0
if (row, col) == self.__pressedIndex:
opt.state |= QStyle.State_Sunken
if isCurrent:
opt.state |= QStyle.State_Selected
if isCurrent and self.hasFocus():
opt.state |= QStyle.State_HasFocus
if not tab.enabled:
opt.state &= ~QStyle.State_Enabled
if self.isActiveWindow():
opt.state |= QStyle.State_Active
if opt.rect == self.__hoverRect:
opt.state |= QStyle.State_MouseOver
opt.shape = QTabBar.RoundedNorth
opt.text = tab.text
if tab.textColor.isValid():
opt.palette.setColor(self.foregroundRole(), tab.textColor)
opt.icon = tab.icon
opt.iconSize = self.iconSize()
if row == self.__selectedIndex[0]:
if col > 0 and col - 1 == self.__selectedIndex[1]:
opt.selectedPosition = QStyleOptionTab.PreviousIsSelected
elif col < self.numTabsInRow(row) - 1 and \
col + 1 == self.__selectedIndex[1]:
opt.selectedPosition = QStyleOptionTab.NextIsSelected
else:
opt.selectedPosition = QStyleOptionTab.NotAdjacent
else:
opt.selectedPosition = QStyleOptionTab.NotAdjacent
if col == 0:
if self.numTabsInRow(row) > 1:
opt.position = QStyleOptionTab.Beginning
else:
opt.position = QStyleOptionTab.OnlyOneTab
elif col == self.numTabsInRow(row) - 1:
opt.position = QStyleOptionTab.End
else:
opt.position = QStyleOptionTab.Middle
return opt
def __layoutTabs(self):
self.__layoutDirty = False
numrows = len(self.__tabList)
taboverlap = QStyleOptionTab()
taboverlap.shape = QTabBar.RoundedNorth
baseoverlap = self.baseOverlap()
rowoverlap = self.style().pixelMetric(QStyle.PM_TabBarTabShiftVertical,
taboverlap, self)
rowoverlap += baseoverlap
maxWidth = 0
maxHeight = 0
maxNumTabs = 0
maxRowWidth = 0
rowpcts = []
for i in range(numrows):
maxNumTabs = max(self.numTabsInRow(i), maxNumTabs)
mw = 0
rowpcts.append([])
for j in range(len(self.__tabList[i])):
sz = self.tabSizeHint(i, j)
mw += sz.width()
maxWidth = max(sz.width(), maxWidth)
maxHeight = max(maxHeight, sz.height())
rowpcts[i].append(sz.width())
rowpcts[i] = [float(x) / mw for x in rowpcts[i]]
maxRowWidth = max(mw, maxRowWidth)
maxHeight -= rowoverlap
centerOffset = 0
for i in range(numrows):
x = 0
if i == self.__selectedIndex[0]:
y = (len(self.__tabList) - 1) * maxHeight
elif i < self.__selectedIndex[0] or self.__selectedIndex[0] == -1:
y = i * maxHeight
else:
y = (i - 1) * maxHeight
for j in range(self.numTabsInRow(i)):
w = rowpcts[i][j] * maxRowWidth
if j == self.numTabsInRow(i) - 1 and \
(x + int(w)) < maxRowWidth:
w = maxRowWidth - x
self.__tabList[i][j].rect = QRect(x + centerOffset, y, int(w),
maxHeight + rowoverlap)
x += int(w)
self.tabLayoutChange()
def dump(self):
taboverlap = QStyleOptionTab()
taboverlap.shape = QTabBar.RoundedNorth
for var in (
'PM_TabBarTabOverlap',
'PM_TabBarTabHSpace',
'PM_TabBarTabShiftHorizontal',
'PM_TabBarTabVSpace',
'PM_TabBarTabShiftVertical',
'PM_TabBarBaseHeight',
'PM_TabBarBaseOverlap',
):
val = self.style().pixelMetric(getattr(QStyle, var), taboverlap,
self)
sys.stdout.write("%s = %s\n" % (var, val))
def paintEvent(self, e):
tabOverlap = QStyleOptionTab()
tabOverlap.shape = QTabBar.RoundedNorth
optTabBase = QStyleOptionTabBarBase()
optTabBase.initFrom(self)
optTabBase.shape = QTabBar.RoundedNorth
optTabBase.tabBarRect = QRect()
painter = QPainter(self)
selected = (0, 0)
for i in range(len(self.__tabList)):
for j in range(len(self.__tabList[i])):
tab = self.__getStyleOption(i, j)
if not (tab.state & QStyle.State_Enabled):
tab.palette.setCurrentColorGroup(QPalette.Disabled)
optTabBase.tabBarRect |= tab.rect
if (i, j) == self.__selectedIndex:
selected = (i, j)
optTabBase.selectedTabRect = tab.rect
continue
self.style().drawControl(QStyle.CE_TabBarTab, tab, painter,
self)
if selected != (-1, -1):
for j in range(len(self.__tabList[selected[0]])):
tab = self.__getStyleOption(selected[0], j)
self.style().drawControl(QStyle.CE_TabBarTab, tab, painter,
self)
tab = self.__getStyleOption(selected[0], selected[1])
painter.eraseRect(tab.rect)
self.style().drawControl(QStyle.CE_TabBarTab, tab, painter, self)
def baseOverlap(self):
taboverlap = QStyleOptionTab()
taboverlap.shape = QTabBar.RoundedNorth
return self.style().pixelMetric(QStyle.PM_TabBarBaseOverlap,
taboverlap, self)
