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
|
/*
* Copyright (c) 2002-2003 Jesper K. Pedersen <blackie@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License version 2 as published by the Free Software Foundation.
*
* 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
**/
#ifdef QT_ONLY
#include "compat.h"
#else
#include <klocale.h>
#include <kmessagebox.h>
#endif
#include "altnwidget.h"
#include "dragaccepter.h"
#include "concwidget.h"
#include "altnregexp.h"
#include <qpainter.h>
AltnWidget::AltnWidget(RegExpEditorWindow* editorWindow, QWidget *parent,
const char *name)
:MultiContainerWidget(editorWindow, parent, name == 0 ? "AltnWidget" : name)
{
DragAccepter *accepter = new DragAccepter(editorWindow, this);
accepter->resize(0,0); // See note (1) in Comments
_children.append(accepter);
_text = i18n("Alternatives");
}
AltnWidget::AltnWidget( AltnRegExp* regexp, RegExpEditorWindow* editorWindow,
QWidget* parent, const char* name)
:MultiContainerWidget( editorWindow, parent, name )
{
DragAccepter *accepter = new DragAccepter(editorWindow, this);
accepter->resize(0,0); // See note (1) in Comments
_children.append(accepter);
_text = i18n("Alternatives");
RegExpList list = regexp->children();
for ( RegExpListIt it(list); *it; ++it ) {
RegExpWidget* child = WidgetFactory::createWidget( *it, editorWindow, this );
ConcWidget* conc;
if ( ! (conc = dynamic_cast<ConcWidget*>( child ) ) ) {
conc = new ConcWidget( editorWindow, child, parent );
}
append( conc );
}
updateDrawLineInfo();
}
void AltnWidget::addNewChild(DragAccepter *accepter, RegExpWidget *child)
{
ConcWidget *conc = new ConcWidget(_editorWindow, child,this);
MultiContainerWidget::addNewChild( accepter, conc );
updateDrawLineInfo();
repaint();
}
void AltnWidget::setConcChild(ConcWidget *child)
{
addNewConcChild( dynamic_cast<DragAccepter*>(_children.at(0)), child );
}
void AltnWidget::addNewConcChild(DragAccepter *accepter, ConcWidget *child)
{
child->reparent(this, QPoint(0,0), false);
MultiContainerWidget::addNewChild( accepter, child );
updateDrawLineInfo();
}
QSize AltnWidget::sizeHint() const
{
QPtrListIterator<RegExpWidget> it(_children);
// Skip the first child, as we only need half of the size of the first and the
// last drag accepter. Does, however, not apply when there only is onw child.
if ( _children.count() != 1 )
++it;
_childrenWidth = 0;
_childrenHeight = 0;
for ( ; *it ; ++it) {
QSize thisChildSize = (*it)->sizeHint();
_childrenWidth = QMAX(_childrenWidth, thisChildSize.width());
_childrenHeight += thisChildSize.height();
}
// Now add the size of the header
QFontMetrics metrics = fontMetrics();
_textSize = metrics.size(0,_text);
int headerWidth = _textSize.width() + 2 * bdSize + 2;
_childrenWidth = QMAX(_childrenWidth, headerWidth);
return QSize(_childrenWidth + 2*pw, _childrenHeight + _textSize.height() + 1*pw );
}
void AltnWidget::paintEvent( QPaintEvent *e)
{
Q_ASSERT( dynamic_cast<DragAccepter*>(_children.at(0)) );
// if this fails, then I should check the location of the show()
Q_ASSERT( _children.count() == 1 ||
( _children.count() >=3 &&
dynamic_cast<DragAccepter*>(_children.at(_children.count()-1)) ) );
int offset = 0;
QSize mySize = sizeHint();
QPainter painter(this);
drawPossibleSelection( painter, mySize );
//-------------------------------------- First draw the border and text
int startY = _textSize.height()/2;
painter.drawLine(0, startY, bdSize, startY);
int xOffset = bdSize +1;
painter.drawText(xOffset,0,_textSize.width(), _textSize.height(),0,_text);
xOffset += _textSize.width() +1;
painter.drawLine(xOffset,startY,mySize.width(), startY);
painter.drawLine(0,startY,0,mySize.height());
painter.drawLine(mySize.width()-pw, startY, mySize.width()-pw, mySize.height());
painter.drawLine(0,mySize.height()-pw, mySize.width()-pw, mySize.height()-pw);
//---- Run through all the children and place them at the correct location.
offset = _textSize.height();
xOffset = pw;
for (unsigned int i = 0; i < _children.count(); i++ ) {
RegExpWidget* child = _children.at(i);
QSize childSize = child->sizeHint();
QSize curChildSize = child->size();
//-------------------------------------- place the child
int x = xOffset;
int y = offset;
int h = childSize.height();
if ( ( _children.count() != 1 ) && ( i == 0 || i == _children.count() -1 ) ) {
// first and last DragAccepter should only be half size.
h /= 2;
}
int w = _childrenWidth;
child->setGeometry( x, y, w, h );
if ( w != curChildSize.width() || h != curChildSize.height() ) {
// I resized the child, so give it a chance to relect thus.
child->update();
}
offset += h;
}
MultiContainerWidget::paintEvent( e );
}
RegExp* AltnWidget::regExp() const
{
AltnRegExp *regexp = new AltnRegExp( isSelected() );
QPtrListIterator<RegExpWidget> it(_children);
++it; // start with the second element
for ( ; *it; it+=2 ) {
regexp->addRegExp( (*it)->regExp() );
}
return regexp;
}
void AltnWidget::applyRegExpToSelection( RegExpType type )
{
for ( unsigned int i=1; i < _children.count(); i += 2 ) {
RegExpWidget* child = _children.at( i );
if ( child->hasSelection() ) {
child->applyRegExpToSelection( type );
}
}
}
RegExp* AltnWidget::selection() const
{
if ( isSelected() )
return regExp();
else {
QPtrListIterator<RegExpWidget> it(_children);
++it; // Skip past DragAccepter
for ( ; *it; it+=2 ) {
if ( (*it)->hasSelection() ) {
return (*it)->selection();
}
}
}
qFatal("Selection not found");
return 0; // compiler shut up.
}
bool AltnWidget::validateSelection() const
{
if ( _isSelected ) {
return true;
}
bool foundASelection = false;
QPtrListIterator<RegExpWidget> it(_children);
++it; // Skip past DragAccepter
for ( ; *it; it+=2 ) {
if ( (*it)->hasSelection() ) {
if ( foundASelection ) {
KMessageBox::information( const_cast<AltnWidget*>(this),
i18n( "Selecting several alternatives is "
"currently not supported." ),
i18n( "Selection Invalid" ) );
_editorWindow->clearSelection( true );
return false;
}
else {
foundASelection = true;
}
}
}
return true;
}
void AltnWidget::updateDrawLineInfo()
{
for ( unsigned int i=0; i < _children.count(); i+=2 ) {
bool line = ( i != 0 && i!= _children.count()-1 );
DragAccepter *accepter = dynamic_cast<DragAccepter*>(_children.at(i));
if (accepter)
accepter->setDrawLine( line );
}
}
void AltnWidget::deleteSelection()
{
MultiContainerWidget::deleteSelection();
updateDrawLineInfo();
}
|
