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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "default_actionprovider.h"
#include "invisible_widget_p.h"
#include "qdesigner_toolbar_p.h"
#include <QtWidgets/qapplication.h>
#include <QtGui/qaction.h>
#include <QtCore/qrect.h>
#include <QtCore/qdebug.h>
QT_BEGIN_NAMESPACE
namespace qdesigner_internal {
// ------------ ActionProviderBase:
// Draws the drag indicator when dragging an action over a widget
// that receives action Dnd, such as ToolBar, Menu or MenuBar.
ActionProviderBase::ActionProviderBase(QWidget *widget) :
m_indicator(new InvisibleWidget(widget))
{
Q_ASSERT(widget != nullptr);
m_indicator->setAutoFillBackground(true);
m_indicator->setBackgroundRole(QPalette::Window);
QPalette p;
p.setColor(m_indicator->backgroundRole(), Qt::red);
m_indicator->setPalette(p);
m_indicator->hide();
}
enum { indicatorSize = 2 };
// Position an indicator horizontally over the rectangle, indicating
// 'Insert before' (left or right according to layout direction)
static inline QRect horizontalIndicatorRect(const QRect &rect, Qt::LayoutDirection layoutDirection)
{
// Position right?
QRect rc = QRect(rect.x(), 0, indicatorSize, rect.height() - 1);
if (layoutDirection == Qt::RightToLeft)
rc.moveLeft(rc.x() + rect.width() - indicatorSize);
return rc;
}
// Position an indicator vertically over the rectangle, indicating 'Insert before' (top)
static inline QRect verticalIndicatorRect(const QRect &rect)
{
return QRect(0, rect.top(), rect.width() - 1, indicatorSize);
}
// Determine the geometry of the indicator by retrieving
// the action under mouse and positioning the bar within its geometry.
QRect ActionProviderBase::indicatorGeometry(const QPoint &pos, Qt::LayoutDirection layoutDirection) const
{
QAction *action = actionAt(pos);
if (!action)
return QRect();
QRect rc = actionGeometry(action);
return orientation() == Qt::Horizontal ? horizontalIndicatorRect(rc, layoutDirection) : verticalIndicatorRect(rc);
}
// Adjust the indicator while dragging. (-1,1) is called to finish a DND operation
void ActionProviderBase::adjustIndicator(const QPoint &pos)
{
if (pos == QPoint(-1, -1)) {
m_indicator->hide();
return;
}
const QRect ig = indicatorGeometry(pos, m_indicator->layoutDirection());
if (ig.isValid()) {
m_indicator->setGeometry(ig);
QPalette p = m_indicator->palette();
if (p.color(m_indicator->backgroundRole()) != Qt::red) {
p.setColor(m_indicator->backgroundRole(), Qt::red);
m_indicator->setPalette(p);
}
m_indicator->show();
m_indicator->raise();
} else {
m_indicator->hide();
}
}
// ------------- QToolBarActionProvider
QToolBarActionProvider::QToolBarActionProvider(QToolBar *widget, QObject *parent) :
QObject(parent),
ActionProviderBase(widget),
m_widget(widget)
{
}
QRect QToolBarActionProvider::actionGeometry(QAction *action) const
{
return m_widget->actionGeometry(action);
}
QAction *QToolBarActionProvider::actionAt(const QPoint &pos) const
{
return ToolBarEventFilter::actionAt(m_widget, pos);
}
Qt::Orientation QToolBarActionProvider::orientation() const
{
return m_widget->orientation();
}
QRect QToolBarActionProvider::indicatorGeometry(const QPoint &pos, Qt::LayoutDirection layoutDirection) const
{
const QRect actionRect = ActionProviderBase::indicatorGeometry(pos, layoutDirection);
if (actionRect.isValid())
return actionRect;
// Toolbar differs in that is has no dummy placeholder to 'insert before'
// when intending to append. Check the free area.
const QRect freeArea = ToolBarEventFilter::freeArea(m_widget);
if (!freeArea.contains(pos))
return QRect();
return orientation() == Qt::Horizontal ? horizontalIndicatorRect(freeArea, layoutDirection) : verticalIndicatorRect(freeArea);
}
// ------------- QMenuBarActionProvider
QMenuBarActionProvider::QMenuBarActionProvider(QMenuBar *widget, QObject *parent) :
QObject(parent),
ActionProviderBase(widget),
m_widget(widget)
{
}
QRect QMenuBarActionProvider::actionGeometry(QAction *action) const
{
return m_widget->actionGeometry(action);
}
QAction *QMenuBarActionProvider::actionAt(const QPoint &pos) const
{
return m_widget->actionAt(pos);
}
Qt::Orientation QMenuBarActionProvider::orientation() const
{
return Qt::Horizontal;
}
// ------------- QMenuActionProvider
QMenuActionProvider::QMenuActionProvider(QMenu *widget, QObject *parent) :
QObject(parent),
ActionProviderBase(widget),
m_widget(widget)
{
}
QRect QMenuActionProvider::actionGeometry(QAction *action) const
{
return m_widget->actionGeometry(action);
}
QAction *QMenuActionProvider::actionAt(const QPoint &pos) const
{
return m_widget->actionAt(pos);
}
Qt::Orientation QMenuActionProvider::orientation() const
{
return Qt::Vertical;
}
}
QT_END_NAMESPACE
|
