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) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "filterwidget_p.h"
#include "iconloader_p.h"
#include <QtGui/QVBoxLayout>
#include <QtGui/QHBoxLayout>
#include <QtGui/QLineEdit>
#include <QtGui/QFocusEvent>
#include <QtGui/QPalette>
#include <QtGui/QCursor>
#include <QtGui/QToolButton>
#include <QtGui/QPainter>
#include <QtGui/QStyle>
#include <QtGui/QStyleOption>
#include <QtCore/QDebug>
#include <QtCore/QPropertyAnimation>
enum { debugFilter = 0 };
QT_BEGIN_NAMESPACE
namespace qdesigner_internal {
HintLineEdit::HintLineEdit(QWidget *parent) :
QLineEdit(parent),
m_defaultFocusPolicy(focusPolicy()),
m_refuseFocus(false)
{
}
IconButton::IconButton(QWidget *parent)
: QToolButton(parent)
{
#ifndef QT_NO_CURSOR
setCursor(Qt::ArrowCursor);
#endif
}
void IconButton::paintEvent(QPaintEvent *)
{
QPainter painter(this);
// Note isDown should really use the active state but in most styles
// this has no proper feedback
QIcon::Mode state = QIcon::Disabled;
if (isEnabled())
state = isDown() ? QIcon::Selected : QIcon::Normal;
QPixmap iconpixmap = icon().pixmap(QSize(ICONBUTTON_SIZE, ICONBUTTON_SIZE),
state, QIcon::Off);
QRect pixmapRect = QRect(0, 0, iconpixmap.width(), iconpixmap.height());
pixmapRect.moveCenter(rect().center());
painter.setOpacity(m_fader);
painter.drawPixmap(pixmapRect, iconpixmap);
}
void IconButton::animateShow(bool visible)
{
if (visible) {
QPropertyAnimation *animation = new QPropertyAnimation(this, "fader");
animation->setDuration(160);
animation->setEndValue(1.0);
animation->start(QAbstractAnimation::DeleteWhenStopped);
} else {
QPropertyAnimation *animation = new QPropertyAnimation(this, "fader");
animation->setDuration(160);
animation->setEndValue(0.0);
animation->start(QAbstractAnimation::DeleteWhenStopped);
}
}
bool HintLineEdit::refuseFocus() const
{
return m_refuseFocus;
}
void HintLineEdit::setRefuseFocus(bool v)
{
if (v == m_refuseFocus)
return;
m_refuseFocus = v;
setFocusPolicy(m_refuseFocus ? Qt::NoFocus : m_defaultFocusPolicy);
}
void HintLineEdit::mousePressEvent(QMouseEvent *e)
{
if (debugFilter)
qDebug() << Q_FUNC_INFO;
// Explicitly focus on click.
if (m_refuseFocus && !hasFocus())
setFocus(Qt::OtherFocusReason);
QLineEdit::mousePressEvent(e);
}
void HintLineEdit::focusInEvent(QFocusEvent *e)
{
if (debugFilter)
qDebug() << Q_FUNC_INFO;
if (m_refuseFocus) {
// Refuse the focus if the mouse it outside. In addition to the mouse
// press logic, this prevents a re-focussing which occurs once
// we actually had focus
const Qt::FocusReason reason = e->reason();
if (reason == Qt::ActiveWindowFocusReason || reason == Qt::PopupFocusReason) {
const QPoint mousePos = mapFromGlobal(QCursor::pos());
const bool refuse = !geometry().contains(mousePos);
if (debugFilter)
qDebug() << Q_FUNC_INFO << refuse ;
if (refuse) {
e->ignore();
return;
}
}
}
QLineEdit::focusInEvent(e);
}
// ------------------- FilterWidget
FilterWidget::FilterWidget(QWidget *parent, LayoutMode lm) :
QWidget(parent),
m_editor(new HintLineEdit(this)),
m_button(new IconButton(m_editor)),
m_buttonwidth(0)
{
m_editor->setPlaceholderText(tr("Filter"));
// Let the style determine minimum height for our widget
QSize size(ICONBUTTON_SIZE + 6, ICONBUTTON_SIZE + 2);
// Note KDE does not reserve space for the highlight color
if (style()->inherits("OxygenStyle")) {
size = size.expandedTo(QSize(24, 0));
}
// Make room for clear icon
QMargins margins = m_editor->textMargins();
if (layoutDirection() == Qt::LeftToRight)
margins.setRight(size.width());
else
margins.setLeft(size.width());
m_editor->setTextMargins(margins);
QHBoxLayout *l = new QHBoxLayout(this);
l->setMargin(0);
l->setSpacing(0);
if (lm == LayoutAlignRight)
l->addItem(new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Minimum));
l->addWidget(m_editor);
// KDE has custom icons for this. Notice that icon namings are counter intuitive
// If these icons are not avaiable we use the freedesktop standard name before
// falling back to a bundled resource
QIcon icon = QIcon::fromTheme(layoutDirection() == Qt::LeftToRight ?
QLatin1String("edit-clear-locationbar-rtl") :
QLatin1String("edit-clear-locationbar-ltr"),
QIcon::fromTheme("edit-clear", createIconSet(QLatin1String("cleartext.png"))));
m_button->setIcon(icon);
m_button->setToolTip(tr("Clear text"));
connect(m_button, SIGNAL(clicked()), this, SLOT(reset()));
connect(m_editor, SIGNAL(textChanged(QString)), this, SLOT(checkButton(QString)));
connect(m_editor, SIGNAL(textEdited(QString)), this, SIGNAL(filterChanged(QString)));
}
QString FilterWidget::text() const
{
return m_editor->text();
}
void FilterWidget::checkButton(const QString &text)
{
if (m_oldText.isEmpty() || text.isEmpty())
m_button->animateShow(!m_editor->text().isEmpty());
m_oldText = text;
}
void FilterWidget::reset()
{
if (debugFilter)
qDebug() << Q_FUNC_INFO;
if (!m_editor->text().isEmpty()) {
// Editor has lost focus once this is pressed
m_editor->clear();
emit filterChanged(QString());
}
}
void FilterWidget::resizeEvent(QResizeEvent *)
{
QRect contentRect = m_editor->rect();
if (layoutDirection() == Qt::LeftToRight) {
const int iconoffset = m_editor->textMargins().right() + 4;
m_button->setGeometry(contentRect.adjusted(m_editor->width() - iconoffset, 0, 0, 0));
} else {
const int iconoffset = m_editor->textMargins().left() + 4;
m_button->setGeometry(contentRect.adjusted(0, 0, -m_editor->width() + iconoffset, 0));
}
}
bool FilterWidget::refuseFocus() const
{
return m_editor->refuseFocus();
}
void FilterWidget::setRefuseFocus(bool v)
{
m_editor->setRefuseFocus(v);
}
} // namespace qdesigner_internal
QT_END_NAMESPACE
|