haiku/headers/os/interface/GroupLayout.h
Alex Wilson 82ab316723 Add default spacing for Layouts (#5614)
* introduce B_USE_DEFAULT_SPACING, which works somewhat like B_SIZE_UNSET and B_ALIGN_HORIZONTAL_UNSET
* introduce static float BControlLook::ComposeItemSpacing(float spacing), which checks uses be_control_look->DefaultItemSpacing().
* modify layouts to use BControlLook::ComposeItemSpacing() in SetInsets and SetSpacing methods.
* default insets are still 0, 0, 0, 0, but can be set to default spacing by passing B_USE_DEFAULT_SPACING
* I've found two regressions, patches incoming, please report others on #5614.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38512 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-09-02 22:58:24 +00:00

72 lines
2.2 KiB
C++

/*
* Copyright 2006-2010, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _GROUP_LAYOUT_H
#define _GROUP_LAYOUT_H
#include <TwoDimensionalLayout.h>
class BGroupLayout : public BTwoDimensionalLayout {
public:
BGroupLayout(enum orientation orientation,
float spacing = B_USE_DEFAULT_SPACING);
BGroupLayout(BMessage* from);
virtual ~BGroupLayout();
float Spacing() const;
void SetSpacing(float spacing);
orientation Orientation() const;
void SetOrientation(enum orientation orientation);
float ItemWeight(int32 index) const;
void SetItemWeight(int32 index, float weight);
virtual BLayoutItem* AddView(BView* child);
virtual BLayoutItem* AddView(int32 index, BView* child);
virtual BLayoutItem* AddView(BView* child, float weight);
virtual BLayoutItem* AddView(int32 index, BView* child,
float weight);
virtual bool AddItem(BLayoutItem* item);
virtual bool AddItem(int32 index, BLayoutItem* item);
virtual bool AddItem(BLayoutItem* item, float weight);
virtual bool AddItem(int32 index, BLayoutItem* item,
float weight);
virtual status_t Archive(BMessage* into, bool deep = true) const;
virtual status_t AllUnarchived(const BMessage* from);
static BArchivable* Instantiate(BMessage* from);
virtual status_t ItemArchived(BMessage* into, BLayoutItem* item,
int32 index) const;
virtual status_t ItemUnarchived(const BMessage* from,
BLayoutItem* item, int32 index);
protected:
virtual bool ItemAdded(BLayoutItem* item, int32 atIndex);
virtual void ItemRemoved(BLayoutItem* item, int32 fromIndex);
virtual void PrepareItems(enum orientation orientation);
virtual int32 InternalCountColumns();
virtual int32 InternalCountRows();
virtual void GetColumnRowConstraints(
enum orientation orientation,
int32 index,
ColumnRowConstraints* constraints);
virtual void GetItemDimensions(BLayoutItem* item,
Dimensions* dimensions);
private:
struct ItemLayoutData;
ItemLayoutData* _LayoutDataForItem(BLayoutItem* item) const;
orientation fOrientation;
BList fVisibleItems;
};
#endif // _GROUP_LAYOUT_H