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comparison engine/core/gui/widgets/utf8textbox.cpp @ 697:ecaa4d98f05f tip

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Abstracted the GUI code and refactored the GUIChan-specific code into its own module. * Most of the GUIChan code has been refactored into its own gui/guichan module. However, references to the GuiFont class still persist in the Engine and GuiManager code and these will need further refactoring. * GuiManager is now an abstract base class which specific implementations (e.g. GUIChan) should subclass. * The GUIChan GUI code is now a concrete implementation of GuiManager, most of which is in the new GuiChanGuiManager class. * The GUI code in the Console class has been refactored out of the Console and into the GUIChan module as its own GuiChanConsoleWidget class. The rest of the Console class related to executing commands was left largely unchanged. * Existing client code may need to downcast the GuiManager pointer received from FIFE::Engine::getGuiManager() to GuiChanGuiManager, since not all functionality is represented in the GuiManager abstract base class. Python client code can use the new GuiChanGuiManager.castTo static method for this purpose.
author M. George Hansen <technopolitica@gmail.com>
date Sat, 18 Jun 2011 00:28:40 -1000
parents e201abd8c807
children
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696:e201abd8c807 697:ecaa4d98f05f
1 /***************************************************************************
2 * Copyright (C) 2009 by the FIFE team *
3 * http://www.fifengine.de *
4 * This file is part of FIFE. *
5 * *
6 * FIFE is free software; you can redistribute it and/or *
7 * modify it under the terms of the GNU Lesser General Public *
8 * License as published by the Free Software Foundation; either *
9 * version 2.1 of the License, or (at your option) any later version. *
10 * *
11 * This library is distributed in the hope that it will be useful, *
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
14 * Lesser General Public License for more details. *
15 * *
16 * You should have received a copy of the GNU Lesser General Public *
17 * License along with this library; if not, write to the *
18 * Free Software Foundation, Inc., *
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
20 ***************************************************************************/
21
22 // Standard C++ library includes
23 #include <cassert>
24
25 // 3rd party library includes
26
27 // FIFE includes
28 // These includes are split up in two parts, separated by one empty line
29 // First block: files included from the FIFE root src directory
30 // Second block: files included from the same folder
31 #include "util/utf8/utf8.h"
32
33 #include "utf8textbox.h"
34
35 namespace gcn {
36
37 UTF8TextBox::UTF8TextBox(const std::string & text)
38 :TextBox(text), mStringEditor(new UTF8StringEditor())
39 {
40 }
41
42 UTF8TextBox::~ UTF8TextBox()
43 {
44 delete mStringEditor;
45 }
46
47 void UTF8TextBox::keyPressed(KeyEvent& keyEvent)
48 {
49 Key key = keyEvent.getKey();
50
51 if (key.getValue() == Key::LEFT)
52 {
53 if (mCaretColumn == 0)
54 {
55 if (mCaretRow > 0)
56 {
57 mCaretRow--;
58 mCaretColumn = mTextRows[mCaretRow].size();
59 }
60 }
61 else
62 {
63 mCaretColumn = mStringEditor->prevChar(mTextRows[mCaretRow], mCaretColumn);
64 }
65 }
66 else if (key.getValue() == Key::RIGHT)
67 {
68 if (mCaretColumn < mTextRows[mCaretRow].size())
69 {
70 mCaretColumn = mStringEditor->nextChar(mTextRows[mCaretRow], mCaretColumn);
71 }
72 else
73 {
74 if (mCaretRow < mTextRows.size() - 1)
75 {
76 mCaretRow++;
77 mCaretColumn = 0;
78 }
79 }
80 }
81 else if (key.getValue() == Key::DOWN)
82 {
83 setCaretRowUTF8(mCaretRow + 1);
84 }
85
86 else if (key.getValue() == Key::UP)
87 {
88 setCaretRowUTF8(mCaretRow - 1);
89 }
90
91 else if (key.getValue() == Key::HOME)
92 {
93 mCaretColumn = 0;
94 }
95
96 else if (key.getValue() == Key::END)
97 {
98 mCaretColumn = mTextRows[mCaretRow].size();
99 }
100
101 else if (key.getValue() == Key::ENTER && mEditable)
102 {
103 mTextRows.insert(mTextRows.begin() + mCaretRow + 1,
104 mTextRows[mCaretRow].substr(mCaretColumn, mTextRows[mCaretRow].size() - mCaretColumn));
105 mTextRows[mCaretRow].resize(mCaretColumn);
106 ++mCaretRow;
107 mCaretColumn = 0;
108 }
109
110 else if (key.getValue() == Key::BACKSPACE
111 && mCaretColumn != 0
112 && mEditable)
113 {
114 mCaretColumn = mStringEditor->prevChar(mTextRows[mCaretRow], mCaretColumn);
115 mCaretColumn = mStringEditor->eraseChar(mTextRows[mCaretRow], mCaretColumn);
116 }
117
118 else if (key.getValue() == Key::BACKSPACE
119 && mCaretColumn == 0
120 && mCaretRow != 0
121 && mEditable)
122 {
123 mCaretColumn = mTextRows[mCaretRow - 1].size();
124 mTextRows[mCaretRow - 1] += mTextRows[mCaretRow];
125 mTextRows.erase(mTextRows.begin() + mCaretRow);
126 mCaretRow--;
127 }
128
129 else if (key.getValue() == Key::DELETE
130 && mCaretColumn < (int)mTextRows[mCaretRow].size()
131 && mEditable)
132 {
133 mCaretColumn = mStringEditor->eraseChar(mTextRows[mCaretRow], mCaretColumn);
134 }
135
136 else if (key.getValue() == Key::DELETE
137 && mCaretColumn == (int)mTextRows[mCaretRow].size()
138 && mCaretRow < ((int)mTextRows.size() - 1)
139 && mEditable)
140 {
141 mTextRows[mCaretRow] += mTextRows[mCaretRow + 1];
142 mTextRows.erase(mTextRows.begin() + mCaretRow + 1);
143 }
144
145 else if(key.getValue() == Key::PAGE_UP)
146 {
147 Widget* par = getParent();
148
149 if (par != NULL)
150 {
151 int rowsPerPage = par->getChildrenArea().height / getFont()->getHeight();
152 int chars = mStringEditor->countChars(mTextRows[mCaretRow], mCaretColumn);
153 mCaretRow -= rowsPerPage;
154
155 if (mCaretRow < 0)
156 {
157 mCaretRow = 0;
158 }
159 mCaretColumn = mStringEditor->getOffset(mTextRows[mCaretRow], chars);
160 }
161 }
162
163 else if(key.getValue() == Key::PAGE_DOWN)
164 {
165 Widget* par = getParent();
166
167 if (par != NULL)
168 {
169 int rowsPerPage = par->getChildrenArea().height / getFont()->getHeight();
170 int chars = mStringEditor->countChars(mTextRows[mCaretRow], mCaretColumn);
171 mCaretRow += rowsPerPage;
172
173 if (mCaretRow >= (int)mTextRows.size())
174 {
175 mCaretRow = mTextRows.size() - 1;
176 }
177
178 mCaretColumn = mStringEditor->getOffset(mTextRows[mCaretRow], chars);
179 }
180 }
181
182 else if(key.getValue() == Key::TAB
183 && mEditable)
184 {
185 // FIXME: jump X spaces, so mCaretColumn % TAB_SIZE = 0 and X <= TAB_SIZE
186 mTextRows[mCaretRow].insert(mCaretColumn,std::string(" "));
187 mCaretColumn += 4;
188 }
189
190 else if ((key.isCharacter() || key.getValue() > 255)
191 && mEditable)
192 {
193 mCaretColumn = mStringEditor->insertChar(mTextRows[mCaretRow], mCaretColumn, key.getValue());
194 }
195
196 adjustSize();
197 scrollToCaret();
198 assert( utf8::is_valid(mTextRows[mCaretRow].begin(),mTextRows[mCaretRow].end()) );
199 assert( utf8::is_valid(mTextRows[mCaretRow].begin(),mTextRows[mCaretRow].begin() + mCaretColumn) );
200 keyEvent.consume();
201 }
202
203
204 void UTF8TextBox::setCaretColumnUTF8(int column)
205 {
206 // no need to clip the column, mStringEditor handles it automaticly
207 mCaretColumn = mStringEditor->getOffset(mTextRows[mCaretRow], column);
208 }
209
210 void UTF8TextBox::setCaretRowUTF8(int row)
211 {
212 int chars = mStringEditor->countChars(mTextRows[mCaretRow], mCaretColumn);
213 if (row < 0) {
214 row = 0;
215 } else if (row >= mTextRows.size()) {
216 row = mTextRows.size() - 1;
217 }
218 mCaretRow = row;
219 mCaretColumn = mStringEditor->getOffset(mTextRows[mCaretRow], chars);
220 }
221
222 }
223
224