1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/**
* @file llscrollcontainer.h
* @brief LLScrollableContainerView class header file.
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2008, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlife.com/developers/opensource/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlife.com/developers/opensource/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LL_LLSCROLLCONTAINER_H
#define LL_LLSCROLLCONTAINER_H
#include "lluictrl.h"
#ifndef LL_V4COLOR_H
#include "v4color.h"
#endif
#include "stdenums.h"
#include "llcoord.h"
#include "llscrollbar.h"
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Class LLScrollableContainerView
//
// A view meant to encapsulate a clipped region which is
// scrollable. It automatically takes care of pixel perfect scrolling
// and cliipping, as well as turning the scrollbars on or off based on
// the width and height of the view you're scrolling.
//
// This class is a decorator class.
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
class LLViewBorder;
class LLUICtrlFactory;
class LLScrollableContainerView : public LLUICtrl
{
public:
// Note: vertical comes before horizontal because vertical
// scrollbars have priority for mouse and keyboard events.
enum SCROLL_ORIENTATION { VERTICAL, HORIZONTAL, SCROLLBAR_COUNT };
LLScrollableContainerView( const LLString& name, const LLRect& rect,
LLView* scrolled_view, BOOL is_opaque = FALSE,
const LLColor4& bg_color = LLColor4(0,0,0,0) );
LLScrollableContainerView( const LLString& name, const LLRect& rect,
LLUICtrl* scrolled_ctrl, BOOL is_opaque = FALSE,
const LLColor4& bg_color = LLColor4(0,0,0,0) );
virtual ~LLScrollableContainerView( void );
void init();
void setScrolledView(LLView* view) { mScrolledView = view; }
virtual void setValue(const LLSD& value) { mInnerRect.setValue(value); }
virtual EWidgetType getWidgetType() const { return WIDGET_TYPE_SCROLL_CONTAINER; }
virtual LLString getWidgetTag() const { return LL_SCROLLABLE_CONTAINER_VIEW_TAG; }
// scrollbar handlers
static void horizontalChange( S32 new_pos, LLScrollbar* sb, void* user_data );
static void verticalChange( S32 new_pos, LLScrollbar* sb, void* user_data );
void calcVisibleSize( S32 *visible_width, S32 *visible_height, BOOL* show_h_scrollbar, BOOL* show_v_scrollbar );
void calcVisibleSize( const LLRect& doc_rect, S32 *visible_width, S32 *visible_height, BOOL* show_h_scrollbar, BOOL* show_v_scrollbar );
void setBorderVisible( BOOL b );
void scrollToShowRect( const LLRect& rect, const LLCoordGL& desired_offset );
void setReserveScrollCorner( BOOL b ) { mReserveScrollCorner = b; }
const LLRect& getScrolledViewRect() { return mScrolledView->getRect(); }
void pageUp(S32 overlap = 0);
void pageDown(S32 overlap = 0);
void goToTop();
void goToBottom();
S32 getBorderWidth();
BOOL needsToScroll(S32 x, S32 y, SCROLL_ORIENTATION axis);
// LLView functionality
virtual void reshape(S32 width, S32 height, BOOL called_from_parent);
virtual BOOL handleKey(KEY key, MASK mask, BOOL called_from_parent);
virtual BOOL handleScrollWheel( S32 x, S32 y, S32 clicks );
virtual BOOL handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop,
EDragAndDropType cargo_type,
void* cargo_data,
EAcceptance* accept,
LLString& tooltip_msg);
virtual BOOL handleToolTip(S32 x, S32 y, LLString& msg, LLRect* sticky_rect);
virtual void draw();
virtual LLXMLNodePtr getXML(bool save_children = true) const;
static LLView* fromXML(LLXMLNodePtr node, LLView *parent, LLUICtrlFactory *factory);
protected:
// internal scrollbar handlers
virtual void scrollHorizontal( S32 new_pos );
virtual void scrollVertical( S32 new_pos );
void updateScroll();
LLScrollbar* mScrollbar[SCROLLBAR_COUNT];
LLView* mScrolledView;
S32 mSize;
BOOL mIsOpaque;
LLColor4 mBackgroundColor;
LLRect mInnerRect;
LLViewBorder* mBorder;
BOOL mReserveScrollCorner;
BOOL mAutoScrolling;
F32 mAutoScrollRate;
};
#endif // LL_LLSCROLLCONTAINER_H
|
