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
|
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** 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.
**
****************************************************************************/
#include "itemlibrarytreeview.h"
#include "resourceitemdelegate.h"
#include <QMimeData>
#include <QDebug>
#include <QPixmap>
#include <QDrag>
#include <QPainter>
#include <QFileSystemModel>
#include <QProxyStyle>
enum { debug = 0 };
namespace QmlDesigner {
void ItemLibraryTreeView::drawSelectionBackground(QPainter *painter, const QStyleOption &option)
{
painter->save();
QLinearGradient gradient;
QColor highlight = option.palette.highlight().color();
gradient.setColorAt(0, highlight.lighter(130));
gradient.setColorAt(1, highlight.darker(130));
gradient.setStart(option.rect.topLeft());
gradient.setFinalStop(option.rect.bottomLeft());
painter->fillRect(option.rect, gradient);
painter->setPen(highlight.lighter());
painter->drawLine(option.rect.topLeft(),option.rect.topRight());
painter->setPen(highlight.darker());
painter->drawLine(option.rect.bottomLeft(),option.rect.bottomRight());
painter->restore();
}
namespace {
// This style basically allows us to span the entire row
// including the arrow indicators which would otherwise not be
// drawn by the delegate
class TreeViewStyle : public QProxyStyle
{
public:
void drawPrimitive(PrimitiveElement element, const QStyleOption *option, QPainter *painter, const QWidget * = 0) const
{
if (element == QStyle::PE_PanelItemViewRow) {
if (option->state & QStyle::State_Selected)
ItemLibraryTreeView::drawSelectionBackground(painter, *option);
}
}
int styleHint(StyleHint hint, const QStyleOption *option = 0, const QWidget *widget = 0, QStyleHintReturn *returnData = 0) const {
if (hint == SH_ItemView_ShowDecorationSelected)
return 0;
else
return QProxyStyle::styleHint(hint, option, widget, returnData);
}
};
}
ItemLibraryTreeView::ItemLibraryTreeView(QWidget *parent) :
QTreeView(parent)
{
setDragEnabled(true);
setDragDropMode(QAbstractItemView::DragOnly);
setUniformRowHeights(true);
connect(this, SIGNAL(clicked(QModelIndex)), this, SLOT(activateItem(QModelIndex)));
setHeaderHidden(true);
setIndentation(20);
setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setAttribute(Qt::WA_MacShowFocusRect, false);
TreeViewStyle *style = new TreeViewStyle;
setStyle(style);
style->setParent(this);
m_delegate = new ResourceItemDelegate(this);
setItemDelegateForColumn(0, m_delegate);
}
// We need to implement startDrag ourselves since we cannot
// otherwise influence drag pixmap and hotspot in the standard
// implementation.
void ItemLibraryTreeView::startDrag(Qt::DropActions /* supportedActions */)
{
if (debug)
qDebug() << Q_FUNC_INFO;
QMimeData *mimeData = model()->mimeData(selectedIndexes());
if (!mimeData)
return;
QFileSystemModel *fileSystemModel = qobject_cast<QFileSystemModel*>(model());
Q_ASSERT(fileSystemModel);
QFileInfo fileInfo = fileSystemModel->fileInfo(selectedIndexes().front());
QPixmap pixmap(fileInfo.absoluteFilePath());
if (!pixmap.isNull()) {
QDrag *drag = new QDrag(this);
drag->setPixmap(QIcon(pixmap).pixmap(128, 128));
QMimeData *mimeData = new QMimeData;
mimeData->setData("application/vnd.bauhaus.libraryresource", fileInfo.absoluteFilePath().toUtf8());
drag->setMimeData(mimeData);
drag->exec();
}
}
void ItemLibraryTreeView::setModel(QAbstractItemModel *model)
{
QFileSystemModel *fileSystemModel = dynamic_cast<QFileSystemModel *>(model);
if (fileSystemModel) {
QTreeView::setModel(model);
m_delegate->setModel(fileSystemModel);
setColumnHidden(1, true);
setColumnHidden(2, true);
setColumnHidden(3, true);
setSortingEnabled(true);
}
}
void ItemLibraryTreeView::activateItem( const QModelIndex & /*index*/)
{
QMimeData *mimeData = model()->mimeData(selectedIndexes());
if (!mimeData)
return;
QString name;
QFileSystemModel *fileSystemModel = qobject_cast<QFileSystemModel*>(model());
Q_ASSERT(fileSystemModel);
QFileInfo fileInfo = fileSystemModel->fileInfo(selectedIndexes().front());
QPixmap pixmap(fileInfo.absoluteFilePath());
if (!pixmap.isNull()) {
name = "image^" + fileInfo.absoluteFilePath();
emit itemActivated(name);
}
}
} // namespace QmlDesigner
|
