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
|
/****************************************************************************
**
** 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 "previewframe.h"
#include "previewwidget.h"
#include <QtCore/qcoreapplication.h>
#include <QtCore/qdebug.h>
#include <QtGui/qpainter.h>
#include <QtWidgets/qmdiarea.h>
#include <QtWidgets/qmdisubwindow.h>
#include <QtGui/qevent.h>
QT_BEGIN_NAMESPACE
namespace qdesigner_internal {
class PreviewMdiArea: public QMdiArea {
public:
PreviewMdiArea(QWidget *parent = nullptr) : QMdiArea(parent) {}
protected:
bool viewportEvent(QEvent *event) override;
};
bool PreviewMdiArea::viewportEvent (QEvent * event) {
if (event->type() != QEvent::Paint)
return QMdiArea::viewportEvent (event);
QWidget *paintWidget = viewport();
QPainter p(paintWidget);
p.fillRect(rect(), paintWidget->palette().color(backgroundRole()).darker());
p.setPen(QPen(Qt::white));
//: Palette editor background
p.drawText(0, height() / 2, width(), height(), Qt::AlignHCenter,
QCoreApplication::translate("qdesigner_internal::PreviewMdiArea", "The moose in the noose\nate the goose who was loose."));
return true;
}
PreviewFrame::PreviewFrame(QWidget *parent) :
QFrame(parent),
m_mdiArea(new PreviewMdiArea(this))
{
m_mdiArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
m_mdiArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
setLineWidth(1);
QVBoxLayout *vbox = new QVBoxLayout(this);
vbox->setContentsMargins(QMargins());
vbox->addWidget(m_mdiArea);
setMinimumSize(ensureMdiSubWindow()->minimumSizeHint());
}
void PreviewFrame::setPreviewPalette(const QPalette &pal)
{
ensureMdiSubWindow()->setPalette(pal);
}
void PreviewFrame::setSubWindowActive(bool active)
{
m_mdiArea->setActiveSubWindow (active ? ensureMdiSubWindow() : nullptr);
}
QMdiSubWindow *PreviewFrame::ensureMdiSubWindow()
{
if (!m_mdiSubWindow) {
PreviewWidget *previewWidget = new PreviewWidget(m_mdiArea);
m_mdiSubWindow = m_mdiArea->addSubWindow(previewWidget, Qt::WindowTitleHint | Qt::WindowMinimizeButtonHint | Qt::WindowMaximizeButtonHint);
m_mdiSubWindow->move(10,10);
m_mdiSubWindow->showMaximized();
}
const Qt::WindowStates state = m_mdiSubWindow->windowState();
if (state & Qt::WindowMinimized)
m_mdiSubWindow->setWindowState(state & ~Qt::WindowMinimized);
return m_mdiSubWindow;
}
}
QT_END_NAMESPACE
|
