haiku/headers/os/interface/GroupLayoutBuilder.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

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1.5 KiB
C++

/*
* Copyright 2006-2010, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _GROUP_LAYOUT_BUILDER_H
#define _GROUP_LAYOUT_BUILDER_H
#include <GroupLayout.h>
#include <GroupView.h>
#include <List.h>
class BGroupLayoutBuilder {
public:
BGroupLayoutBuilder(
enum orientation orientation = B_HORIZONTAL,
float spacing = B_USE_DEFAULT_SPACING);
BGroupLayoutBuilder(BGroupLayout* layout);
BGroupLayoutBuilder(BGroupView* view);
BGroupLayout* RootLayout() const;
BGroupLayout* TopLayout() const;
BGroupLayoutBuilder& GetTopLayout(BGroupLayout** _layout);
BView* TopView() const;
BGroupLayoutBuilder& GetTopView(BView** _view);
BGroupLayoutBuilder& Add(BView* view);
BGroupLayoutBuilder& Add(BView* view, float weight);
BGroupLayoutBuilder& Add(BLayoutItem* item);
BGroupLayoutBuilder& Add(BLayoutItem* item, float weight);
BGroupLayoutBuilder& AddGroup(enum orientation orientation,
float spacing = B_USE_DEFAULT_SPACING,
float weight = 1.0f);
BGroupLayoutBuilder& End();
BGroupLayoutBuilder& AddGlue(float weight = 1.0f);
BGroupLayoutBuilder& AddStrut(float size);
BGroupLayoutBuilder& SetInsets(float left, float top, float right,
float bottom);
operator BGroupLayout*();
private:
bool _PushLayout(BGroupLayout* layout);
void _PopLayout();
private:
BGroupLayout* fRootLayout;
BList fLayoutStack;
};
#endif // _GROUP_LAYOUT_BUILDER_H