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Implemented BSize returning layout methods.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27406 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stephan Aßmus
2008-09-10 20:34:10 +00:00
parent 8bd9493d55
commit 7bf5abf425
2 changed files with 56 additions and 1 deletions
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src/kits/interface/ScrollBar.cpp
+49
View File
@@ -12,6 +12,7 @@
#include <ScrollBar.h>
#include <LayoutUtils.h>
#include <Message.h>
#include <OS.h>
#include <Shape.h>
@@ -1083,6 +1084,37 @@ BScrollBar::GetSupportedSuites(BMessage *message)
}
BSize
BScrollBar::MinSize()
{
return BLayoutUtils::ComposeSize(ExplicitMinSize(), _MinSize());
}
BSize
BScrollBar::MaxSize()
{
BSize maxSize = _MinSize();
if (fOrientation == B_HORIZONTAL)
maxSize.width = B_SIZE_UNLIMITED;
else
maxSize.height = B_SIZE_UNLIMITED;
return BLayoutUtils::ComposeSize(ExplicitMaxSize(), maxSize);
}
BSize
BScrollBar::PreferredSize()
{
BSize preferredSize = _MinSize();
if (fOrientation == B_HORIZONTAL)
preferredSize.width = 2 * preferredSize.width;
else
preferredSize.height = 2 * preferredSize.height;
return BLayoutUtils::ComposeSize(ExplicitPreferredSize(), preferredSize);
}
status_t
BScrollBar::Perform(perform_code d, void* arg)
{
@@ -1643,3 +1675,20 @@ BScrollBar::_DrawArrowButton(int32 direction, bool doubleArrows, BRect r,
EndLineArray();
}
BSize
BScrollBar::_MinSize() const
{
BSize minSize;
if (fOrientation == B_HORIZONTAL) {
minSize.width = 2 * B_V_SCROLL_BAR_WIDTH
+ 2 * fPrivateData->fScrollBarInfo.min_knob_size;
minSize.height = B_H_SCROLL_BAR_HEIGHT;
} else {
minSize.width = B_V_SCROLL_BAR_WIDTH;
minSize.height = 2 * B_H_SCROLL_BAR_HEIGHT
+ 2 * fPrivateData->fScrollBarInfo.min_knob_size;
}
return minSize;
}