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/**
* @file lllayoutstack.h
* @author Richard Nelson
* @brief LLLayout class - dynamic stacking of UI elements
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLLAYOUTSTACK_H
#define LL_LLLAYOUTSTACK_H
#include "llview.h"
class LLPanel;
class LLLayoutStack : public LLView, public LLInstanceTracker<LLLayoutStack>
{
public:
struct Params : public LLInitParam::Block<Params, LLView::Params>
{
Optional<std::string> orientation;
Optional<S32> border_size;
Optional<bool> animate,
clip;
Params();
};
typedef enum e_layout_orientation
{
HORIZONTAL,
VERTICAL
} ELayoutOrientation;
virtual ~LLLayoutStack();
/*virtual*/ void draw();
/*virtual*/ void removeChild(LLView*);
/*virtual*/ BOOL postBuild();
static LLView* fromXML(LLXMLNodePtr node, LLView *parent, LLXMLNodePtr output_node = NULL);
S32 getMinWidth() const { return mMinWidth; }
S32 getMinHeight() const { return mMinHeight; }
typedef enum e_animate
{
NO_ANIMATE,
ANIMATE
} EAnimate;
void addPanel(LLPanel* panel, S32 min_width, S32 min_height, S32 max_width, S32 max_height, BOOL auto_resize, BOOL user_resize, EAnimate animate = NO_ANIMATE, S32 index = S32_MAX);
void removePanel(LLPanel* panel);
void collapsePanel(LLPanel* panel, BOOL collapsed = TRUE);
S32 getNumPanels() { return mPanels.size(); }
/**
* Moves panel_to_move before target_panel inside layout stack (both panels should already be there).
* If move_to_front is true target_panel is ignored and panel_to_move is moved to the beginning of mPanels
*/
void movePanel(LLPanel* panel_to_move, LLPanel* target_panel, bool move_to_front = false);
void updatePanelAutoResize(const std::string& panel_name, BOOL auto_resize);
void setPanelUserResize(const std::string& panel_name, BOOL user_resize);
/**
* Gets minimal width and/or height of the specified by name panel.
*
* If it is necessary to get only the one dimension pass NULL for another one.
* @returns true if specified by panel_name internal panel exists, false otherwise.
*/
bool getPanelMinSize(const std::string& panel_name, S32* min_widthp, S32* min_heightp);
/**
* Gets maximal width and/or height of the specified by name panel.
*
* If it is necessary to get only the one dimension pass NULL for another one.
* @returns true if specified by panel_name internal panel exists, false otherwise.
*/
bool getPanelMaxSize(const std::string& panel_name, S32* max_width, S32* max_height);
void updateLayout(BOOL force_resize = FALSE);
S32 getPanelSpacing() const { return mPanelSpacing; }
BOOL getAnimate () const { return mAnimate; }
void setAnimate (BOOL animate) { mAnimate = animate; }
static void updateClass();
protected:
LLLayoutStack(const Params&);
friend class LLUICtrlFactory;
private:
struct LayoutPanel;
void calcMinExtents();
S32 getDefaultHeight(S32 cur_height);
S32 getDefaultWidth(S32 cur_width);
const ELayoutOrientation mOrientation;
typedef std::vector<LayoutPanel*> e_panel_list_t;
e_panel_list_t mPanels;
LayoutPanel* findEmbeddedPanel(LLPanel* panelp) const;
LayoutPanel* findEmbeddedPanelByName(const std::string& name) const;
S32 mMinWidth; // calculated by calcMinExtents
S32 mMinHeight; // calculated by calcMinExtents
S32 mPanelSpacing;
// true if we already applied animation this frame
bool mAnimatedThisFrame;
bool mAnimate;
bool mClip;
}; // end class LLLayoutStack
#endif
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