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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
/**
* @file llexpandabletextbox.h
* @brief LLExpandableTextBox and related class definitions
*
* $LicenseInfo:firstyear=2004&license=viewergpl$
*
* Copyright (c) 2004-2009, 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://secondlifegrid.net/programs/open_source/licensing/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://secondlifegrid.net/programs/open_source/licensing/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_LLEXPANDABLETEXTBOX_H
#define LL_LLEXPANDABLETEXTBOX_H
#include "lltextbox.h"
#include "llscrollcontainer.h"
/**
* LLExpandableTextBox is a text box control that will show "More" link at end of text
* if text doesn't fit into text box. After pressing "More" the text box will expand to show
* all text. If text is still too big, a scroll bar will appear inside expanded text box.
*/
class LLExpandableTextBox : public LLUICtrl
{
protected:
/**
* Extended text box. "More" link will appear at end of text if
* text is too long to fit into text box size.
*/
class LLTextBoxEx : public LLTextBox
{
public:
struct Params : public LLInitParam::Block<Params, LLTextBox::Params>
{
Mandatory<std::string> more_label;
Params();
};
// adds or removes "More" link as needed
/*virtual*/ void reshape(S32 width, S32 height, BOOL called_from_parent = TRUE);
/*virtual*/ void setText(const LLStringExplicit& text);
/**
* Returns difference between text box height and text height.
* Value is positive if text height is greater than text box height.
*/
virtual S32 getVerticalTextDelta();
/**
* Shows "More" link
*/
void showExpandText();
/**
* Hides "More" link
*/
void hideExpandText();
protected:
LLTextBoxEx(const Params& p);
friend class LLUICtrlFactory;
private:
std::string mExpanderLabel;
bool mExpanderVisible;
};
public:
struct Params : public LLInitParam::Block<Params, LLUICtrl::Params>
{
Optional<LLTextBoxEx::Params> textbox;
Optional<LLScrollContainer::Params> scroll;
Optional<S32> max_height;
Optional<bool> bg_visible,
expanded_bg_visible;
Optional<LLUIColor> bg_color,
expanded_bg_color;
Params();
};
/**
* Sets text
*/
virtual void setText(const std::string& str);
/**
* Returns text
*/
virtual std::string getText() const { return mText; }
/**
* Sets text
*/
/*virtual*/ void setValue(const LLSD& value);
/**
* Returns text
*/
/*virtual*/ LLSD getValue() const { return mText; }
/**
* Collapses text box on focus_lost event
*/
/*virtual*/ void onFocusLost();
/**
* Collapses text box on top_lost event
*/
/*virtual*/ void onTopLost();
/**
* Draws text box, collapses text box if its expanded and its parent's position changed
*/
/*virtual*/ void draw();
protected:
LLExpandableTextBox(const Params& p);
friend class LLUICtrlFactory;
/**
* Expands text box.
* A scroll bar will appear if expanded height is greater than max_height
*/
virtual void expandTextBox();
/**
* Collapses text box.
*/
virtual void collapseTextBox();
/**
* Collapses text box if it is expanded and its parent's position changed
*/
virtual void collapseIfPosChanged();
/**
* Updates text box rect to avoid horizontal scroll bar
*/
virtual void updateTextBoxRect();
/**
* User clicked on "More" link - expand text box
*/
virtual void onExpandClicked();
/**
* Saves collapsed text box's states(rect, parent rect...)
*/
virtual void saveCollapsedState();
/**
* Recalculate text delta considering min_height and window rect.
*/
virtual S32 recalculateTextDelta(S32 text_delta);
protected:
std::string mText;
LLTextBoxEx* mTextBox;
LLScrollContainer* mScroll;
S32 mMaxHeight;
LLRect mCollapsedRect;
bool mExpanded;
LLRect mParentRect;
bool mBGVisible;
bool mExpandedBGVisible;
LLUIColor mBGColor;
LLUIColor mExpandedBGColor;
};
#endif //LL_LLEXPANDABLETEXTBOX_H
|
