void TabbedButtonBar::resized()
{
int depth = getWidth();
int length = getHeight();
if (orientation == TabsAtTop || orientation == TabsAtBottom)
std::swap (depth, length);
const int overlap = getLookAndFeel().getTabButtonOverlap (depth)
+ getLookAndFeel().getTabButtonSpaceAroundImage() * 2;
int i, totalLength = overlap;
int numVisibleButtons = tabs.size();
for (i = 0; i < tabs.size(); ++i)
{
TabBarButton* const tb = tabs.getUnchecked(i)->component;
totalLength += tb->getBestTabLength (depth) - overlap;
tb->overlapPixels = overlap / 2;
}
double scale = 1.0;
if (totalLength > length)
scale = jmax (minimumScale, length / (double) totalLength);
const bool isTooBig = totalLength * scale > length;
int tabsButtonPos = 0;
if (isTooBig)
{
if (extraTabsButton == nullptr)
{
addAndMakeVisible (extraTabsButton = getLookAndFeel().createTabBarExtrasButton());
extraTabsButton->addListener (behindFrontTab);
extraTabsButton->setAlwaysOnTop (true);
extraTabsButton->setTriggeredOnMouseDown (true);
}
const int buttonSize = jmin (proportionOfWidth (0.7f), proportionOfHeight (0.7f));
extraTabsButton->setSize (buttonSize, buttonSize);
if (orientation == TabsAtTop || orientation == TabsAtBottom)
{
tabsButtonPos = getWidth() - buttonSize / 2 - 1;
extraTabsButton->setCentrePosition (tabsButtonPos, getHeight() / 2);
}
else
{
tabsButtonPos = getHeight() - buttonSize / 2 - 1;
extraTabsButton->setCentrePosition (getWidth() / 2, tabsButtonPos);
}
totalLength = 0;
for (i = 0; i < tabs.size(); ++i)
{
TabBarButton* const tb = tabs.getUnchecked(i)->component;
const int newLength = totalLength + tb->getBestTabLength (depth);
if (i > 0 && newLength * minimumScale > tabsButtonPos)
{
totalLength += overlap;
break;
}
numVisibleButtons = i + 1;
totalLength = newLength - overlap;
}
scale = jmax (minimumScale, tabsButtonPos / (double) totalLength);
}
else
{
extraTabsButton = nullptr;
}
int pos = 0;
TabBarButton* frontTab = nullptr;
for (i = 0; i < tabs.size(); ++i)
{
TabBarButton* const tb = getTabButton (i);
if (tb != nullptr)
{
const int bestLength = roundToInt (scale * tb->getBestTabLength (depth));
if (i < numVisibleButtons)
{
if (orientation == TabsAtTop || orientation == TabsAtBottom)
tb->setBounds (pos, 0, bestLength, getHeight());
else
tb->setBounds (0, pos, getWidth(), bestLength);
tb->toBack();
if (i == currentTabIndex)
frontTab = tb;
tb->setVisible (true);
}
else
{
tb->setVisible (false);
}
pos += bestLength - overlap;
}
}
behindFrontTab->setBounds (getLocalBounds());
if (frontTab != nullptr)
{
frontTab->toFront (false);
behindFrontTab->toBehind (frontTab);
}
}
//==============================================================================
void TabbedButtonBar::updateTabPositions (bool animate)
{
LookAndFeel& lf = getLookAndFeel();
int depth = getWidth();
int length = getHeight();
if (! isVertical())
std::swap (depth, length);
const int overlap = lf.getTabButtonOverlap (depth) + lf.getTabButtonSpaceAroundImage() * 2;
int totalLength = jmax (0, overlap);
int numVisibleButtons = tabs.size();
for (int i = 0; i < tabs.size(); ++i)
{
TabBarButton* const tb = tabs.getUnchecked(i)->button;
totalLength += tb->getBestTabLength (depth) - overlap;
tb->overlapPixels = jmax (0, overlap / 2);
}
double scale = 1.0;
if (totalLength > length)
scale = jmax (minimumScale, length / (double) totalLength);
const bool isTooBig = (int) (totalLength * scale) > length;
int tabsButtonPos = 0;
if (isTooBig)
{
if (extraTabsButton == nullptr)
{
addAndMakeVisible (extraTabsButton = lf.createTabBarExtrasButton());
extraTabsButton->addListener (behindFrontTab);
extraTabsButton->setAlwaysOnTop (true);
extraTabsButton->setTriggeredOnMouseDown (true);
}
const int buttonSize = jmin (proportionOfWidth (0.7f), proportionOfHeight (0.7f));
extraTabsButton->setSize (buttonSize, buttonSize);
if (isVertical())
{
tabsButtonPos = getHeight() - buttonSize / 2 - 1;
extraTabsButton->setCentrePosition (getWidth() / 2, tabsButtonPos);
}
else
{
tabsButtonPos = getWidth() - buttonSize / 2 - 1;
extraTabsButton->setCentrePosition (tabsButtonPos, getHeight() / 2);
}
totalLength = 0;
for (int i = 0; i < tabs.size(); ++i)
{
TabBarButton* const tb = tabs.getUnchecked(i)->button;
const int newLength = totalLength + tb->getBestTabLength (depth);
if (i > 0 && newLength * minimumScale > tabsButtonPos)
{
totalLength += overlap;
break;
}
numVisibleButtons = i + 1;
totalLength = newLength - overlap;
}
scale = jmax (minimumScale, tabsButtonPos / (double) totalLength);
}
else
{
extraTabsButton = nullptr;
}
int pos = 0;
TabBarButton* frontTab = nullptr;
ComponentAnimator& animator = Desktop::getInstance().getAnimator();
for (int i = 0; i < tabs.size(); ++i)
{
if (TabBarButton* const tb = getTabButton (i))
{
const int bestLength = roundToInt (scale * tb->getBestTabLength (depth));
if (i < numVisibleButtons)
{
const Rectangle<int> newBounds (isVertical() ? Rectangle<int> (0, pos, getWidth(), bestLength)
: Rectangle<int> (pos, 0, bestLength, getHeight()));
if (animate)
{
animator.animateComponent (tb, newBounds, 1.0f, 200, false, 3.0, 0.0);
}
else
{
animator.cancelAnimation (tb, false);
tb->setBounds (newBounds);
}
tb->toBack();
if (i == currentTabIndex)
frontTab = tb;
tb->setVisible (true);
}
else
{
tb->setVisible (false);
}
pos += bestLength - overlap;
}
}
behindFrontTab->setBounds (getLocalBounds());
if (frontTab != nullptr)
{
frontTab->toFront (false);
behindFrontTab->toBehind (frontTab);
}
}