summaryrefslogtreecommitdiff
path: root/indra/llui/llcombobox.h
blob: c9b1212b70c0189b5726c4a5573754abc3844c78 (plain)
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
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
/** 
 * @file llcombobox.h
 * @brief LLComboBox base class
 *
 * $LicenseInfo:firstyear=2001&license=viewerlgpl$
 * 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
 * $/LicenseInfo$
 */

// A control that displays the name of the chosen item, which when clicked
// shows a scrolling box of choices.

#ifndef LL_LLCOMBOBOX_H
#define LL_LLCOMBOBOX_H

#include "llbutton.h"
#include "lluictrl.h"
#include "llctrlselectioninterface.h"
#include "llrect.h"
#include "llscrolllistctrl.h"
#include "lllineeditor.h"
#include <boost/function.hpp>

// Classes

class LLFontGL;
class LLViewBorder;

class LLComboBox
:	public LLUICtrl, public LLCtrlListInterface
{
public:	
	typedef enum e_preferred_position
	{
		ABOVE,
		BELOW
	} EPreferredPosition;

	struct PreferredPositionValues : public LLInitParam::TypeValuesHelper<EPreferredPosition, PreferredPositionValues>
	{
		static void declareValues();
	};


	struct ItemParams : public LLInitParam::Block<ItemParams, LLScrollListItem::Params>
	{
		Optional<std::string>	label;
		ItemParams();
	};

	struct Params 
	:	public LLInitParam::Block<Params, LLUICtrl::Params>
	{
		Optional<bool>						allow_text_entry,
											show_text_as_tentative,
											allow_new_values;
		Optional<S32>						max_chars;
		Optional<commit_callback_t> 		prearrange_callback,
											text_entry_callback,
											text_changed_callback;

		Optional<EPreferredPosition, PreferredPositionValues>	list_position;
		
		// components
		Optional<LLButton::Params>			combo_button;
		Optional<LLScrollListCtrl::Params>	combo_list;
		Optional<LLLineEditor::Params>		combo_editor;

		Optional<LLButton::Params>          drop_down_button;

		Multiple<ItemParams>				items;
		
		Params();
	};


	virtual ~LLComboBox(); 
	/*virtual*/ BOOL postBuild();
	
protected:
	friend class LLUICtrlFactory;
	LLComboBox(const Params&);
	void	initFromParams(const Params&);
	void	prearrangeList(std::string filter = "");

public:
	// LLView interface
	virtual void	onFocusLost();

	virtual BOOL	handleToolTip(S32 x, S32 y, MASK mask);
	virtual BOOL	handleKeyHere(KEY key, MASK mask);
	virtual BOOL	handleUnicodeCharHere(llwchar uni_char);

	// LLUICtrl interface
	virtual void	clear();					// select nothing
	virtual void	onCommit();
	virtual BOOL	acceptsTextInput() const		{ return mAllowTextEntry; }
	virtual BOOL	isDirty() const;			// Returns TRUE if the user has modified this control.
	virtual void	resetDirty();				// Clear dirty state

	virtual void	setFocus(BOOL b);

	// Selects item by underlying LLSD value, using LLSD::asString() matching.  
	// For simple items, this is just the name of the label.
	virtual void	setValue(const LLSD& value );

	// Gets underlying LLSD value for currently selected items.  For simple
	// items, this is just the label.
	virtual LLSD	getValue() const;

	void			setTextEntry(const LLStringExplicit& text);

	LLScrollListItem*	add(const std::string& name, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE);	// add item "name" to menu
	LLScrollListItem*	add(const std::string& name, const LLUUID& id, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE);
	LLScrollListItem*	add(const std::string& name, void* userdata, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE);
	LLScrollListItem*	add(const std::string& name, LLSD value, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE);
	LLScrollListItem*	addSeparator(EAddPosition pos = ADD_BOTTOM);
	BOOL			remove( S32 index );	// remove item by index, return TRUE if found and removed
	void			removeall() { clearRows(); }
	bool			itemExists(const std::string& name);

	void			sortByName(BOOL ascending = TRUE); // Sort the entries in the combobox by name

	// Select current item by name using selectItemByLabel.  Returns FALSE if not found.
	BOOL			setSimple(const LLStringExplicit& name);
	// Get name of current item. Returns an empty string if not found.
	const std::string	getSimple() const;
	// Get contents of column x of selected row
	virtual const std::string getSelectedItemLabel(S32 column = 0) const;

	// Sets the label, which doesn't have to exist in the label.
	// This is probably a UI abuse.
	void			setLabel(const LLStringExplicit& name);

	// Updates the combobox label to match the selected list item.
	void			updateLabel();

	BOOL			remove(const std::string& name);	// remove item "name", return TRUE if found and removed
	
	BOOL			setCurrentByIndex( S32 index );
	S32				getCurrentIndex() const;

	void			createLineEditor(const Params&);

	//========================================================================
	LLCtrlSelectionInterface* getSelectionInterface()	{ return (LLCtrlSelectionInterface*)this; };
	LLCtrlListInterface* getListInterface()				{ return (LLCtrlListInterface*)this; };

	// LLCtrlListInterface functions
	// See llscrolllistctrl.h
	virtual S32		getItemCount() const;
	// Overwrites the default column (See LLScrollListCtrl for format)
	virtual void 	addColumn(const LLSD& column, EAddPosition pos = ADD_BOTTOM);
	virtual void 	clearColumns();
	virtual void	setColumnLabel(const std::string& column, const std::string& label);
	virtual LLScrollListItem* addElement(const LLSD& value, EAddPosition pos = ADD_BOTTOM, void* userdata = NULL);
	virtual LLScrollListItem* addSimpleElement(const std::string& value, EAddPosition pos = ADD_BOTTOM, const LLSD& id = LLSD());
	virtual void 	clearRows();
	virtual void 	sortByColumn(const std::string& name, BOOL ascending);

	// LLCtrlSelectionInterface functions
	virtual BOOL	getCanSelect() const				{ return TRUE; }
	virtual BOOL	selectFirstItem()					{ return setCurrentByIndex(0); }
	virtual BOOL	selectNthItem( S32 index )			{ return setCurrentByIndex(index); }
	virtual BOOL	selectItemRange( S32 first, S32 last );
	virtual S32		getFirstSelectedIndex() const		{ return getCurrentIndex(); }
	virtual BOOL	setCurrentByID( const LLUUID& id );
	virtual LLUUID	getCurrentID() const;				// LLUUID::null if no items in menu
	virtual BOOL	setSelectedByValue(const LLSD& value, BOOL selected);
	virtual LLSD	getSelectedValue();
	virtual BOOL	isSelected(const LLSD& value) const;
	virtual BOOL	operateOnSelection(EOperation op);
	virtual BOOL	operateOnAll(EOperation op);

	//========================================================================
	
	void			setLeftTextPadding(S32 pad);
	
	void*			getCurrentUserdata();

	void			setPrearrangeCallback( commit_callback_t cb ) { mPrearrangeCallback = cb; }
	void			setTextEntryCallback( commit_callback_t cb ) { mTextEntryCallback = cb; }
	void			setTextChangedCallback( commit_callback_t cb ) { mTextChangedCallback = cb; }

	/**
	* Connects callback to signal called when Return key is pressed.
	*/
	boost::signals2::connection setReturnCallback( const commit_signal_t::slot_type& cb ) { return mOnReturnSignal.connect(cb); }

	void			setButtonVisible(BOOL visible);

	void			onButtonMouseDown();
	void			onListMouseUp();
	void			onItemSelected(const LLSD& data);
	void			onTextCommit(const LLSD& data);

	void			updateSelection();
	virtual void	showList();
	virtual void	hideList();
	
	virtual void	onTextEntry(LLLineEditor* line_editor);
	
protected:
	LLButton*			mButton;
	LLLineEditor*		mTextEntry;
	LLScrollListCtrl*	mList;
	EPreferredPosition	mListPosition;
	LLPointer<LLUIImage>	mArrowImage;
	LLUIString			mLabel;
	BOOL				mHasAutocompletedText;

private:
	BOOL				mAllowTextEntry;
	BOOL				mAllowNewValues;
	S32					mMaxChars;
	BOOL				mTextEntryTentative;
	commit_callback_t	mPrearrangeCallback;
	commit_callback_t	mTextEntryCallback;
	commit_callback_t	mTextChangedCallback;
	commit_callback_t	mSelectionCallback;
	boost::signals2::connection mTopLostSignalConnection;
	commit_signal_t		mOnReturnSignal;
	S32                 mLastSelectedIndex;
};

// A combo box with icons for the list of items.
class LLIconsComboBox
:	public LLComboBox
{
public:
	struct Params
	:	public LLInitParam::Block<Params, LLComboBox::Params>
	{
		Optional<S32>		icon_column,
							label_column;
		Params();
	};

	/*virtual*/ const std::string getSelectedItemLabel(S32 column = 0) const;

private:
	enum EColumnIndex
	{
		ICON_COLUMN = 0,
		LABEL_COLUMN
	};

	friend class LLUICtrlFactory;
	LLIconsComboBox(const Params&);
	virtual ~LLIconsComboBox() {};

	S32			mIconColumnIndex;
	S32			mLabelColumnIndex;
};

#endif