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Big change deriving BLayout from BLayoutItem, and allowing viewless BLayouts.

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a few highlights:
* BLayout now derives publicly from BLayoutItem
* Added BAbstractLayout class, which our layouts now derive from
* updated layout builders to avoid creating views when they don't need to
* updated layout classes
* updated AboutSystem to fix a little regression
* more details on #6407
* please tell me about any regressions, I've tried to find them all, but some
  may have slipped by.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38207 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Alex Wilson
2010-08-17 18:43:41 +00:00
parent 0f274fd5b2
commit 1d6c7b6cb6
28 changed files with 1546 additions and 312 deletions
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headers/os/interface/CardLayout.h
+8 -8
View File
@@ -5,10 +5,10 @@
#ifndef _CARD_LAYOUT_H
#define _CARD_LAYOUT_H
#include <Layout.h>
#include <AbstractLayout.h>
class BCardLayout : public BLayout {
class BCardLayout : public BAbstractLayout {
public:
BCardLayout();
BCardLayout(BMessage* from);
@@ -19,23 +19,23 @@ public:
void SetVisibleItem(int32 index);
void SetVisibleItem(BLayoutItem* item);
virtual BSize MinSize();
virtual BSize MaxSize();
virtual BSize PreferredSize();
virtual BAlignment Alignment();
virtual BSize BaseMinSize();
virtual BSize BaseMaxSize();
virtual BSize BasePreferredSize();
virtual BAlignment BaseAlignment();
virtual bool HasHeightForWidth();
virtual void GetHeightForWidth(float width, float* min,
float* max, float* preferred);
virtual void InvalidateLayout();
virtual void LayoutView();
virtual void InvalidateLayout(bool children = false);
virtual status_t Archive(BMessage* into, bool deep = true) const;
virtual status_t AllUnarchived(const BMessage* from);
static BArchivable* Instantiate(BMessage* from);
protected:
virtual void DerivedLayoutItems();
virtual bool ItemAdded(BLayoutItem* item, int32 atIndex);
virtual void ItemRemoved(BLayoutItem* item, int32 fromIndex);