forked from IENT/YUView
-
Notifications
You must be signed in to change notification settings - Fork 0
/
fileInfoWidget.cpp
169 lines (149 loc) · 5.27 KB
/
fileInfoWidget.cpp
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
/* This file is part of YUView - The YUV player with advanced analytics toolset
* <https://github.com/IENT/YUView>
* Copyright (C) 2015 Institut für Nachrichtentechnik, RWTH Aachen University, GERMANY
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations including
* the two.
*
* You must obey the GNU General Public License in all respects for all
* of the code used other than OpenSSL. If you modify file(s) with this
* exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do
* so, delete this exception statement from your version. If you delete
* this exception statement from all source files in the program, then
* also delete it here.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "fileInfoWidget.h"
#include <QPointer>
#include <QPushButton>
#include <QGridLayout>
#include <QVariant>
#include "labelElided.h"
static const char kInfoIndex[] = "fi_infoIndex";
static const char kInfoButtonID[] = "fi_buttonID";
/* The file info group box can display information on a file (or any other display object).
* If you provide a list of QString tuples, this class will fill a grid layout with the
* corresponding labels.
*/
FileInfoWidget::FileInfoWidget(QWidget *parent) :
QWidget(parent),
grid(this)
{
// Load the warning icon
warningIcon = QPixmap(":img_warning.png");
// Clear the file info dock
setInfo();
}
void FileInfoWidget::clear(int startRow)
{
for (int i = startRow; i < grid.rowCount(); ++i)
for (int j = 0; j < grid.columnCount(); ++j)
{
auto item = grid.itemAtPosition(i, j);
if (item)
delete item->widget();
}
}
// Returns a possibly new widget at given row and column, having a set column span.
// Any existing widgets of other types or other span will be removed.
template <typename W> static W * widgetAt(QGridLayout *grid, int row, int column, int columnSpan = 1)
{
Q_ASSERT(grid->columnCount() <= 2);
QPointer<QWidget> widgets[2];
for (int j = 0; j < grid->columnCount(); ++j)
{
auto item = grid->itemAtPosition(row, j);
if (item)
widgets[j] = item->widget();
}
if (columnSpan == 1 && widgets[0] == widgets[1])
delete widgets[0];
if (columnSpan == 2 && widgets[0] != widgets[1])
for (auto & w : widgets)
delete w;
auto widget = qobject_cast<W*>(widgets[column]);
if (!widget)
{
// There may be an incompatible widget there.
delete widgets[column];
widget = new W;
grid->addWidget(widget, row, column, 1, columnSpan, Qt::AlignTop);
}
return widget;
}
int FileInfoWidget::addInfo(const infoData &data, int row, int infoIndex)
{
for (auto &info : data.items)
{
auto name = widgetAt<QLabel>(&grid, row, 0);
if (info.name != "Warning")
name->setText(info.name);
else
name->setPixmap(warningIcon);
if (!info.button)
{
auto text = widgetAt<labelElided>(&grid, row, 1);
text->setText(info.text);
text->setToolTip(info.toolTip);
}
else
{
auto button = widgetAt<QPushButton>(&grid, row, 1);
button->setText(info.text);
button->setToolTip(info.toolTip);
button->setProperty(kInfoIndex, infoIndex);
button->setProperty(kInfoButtonID, info.buttonID);
connect(button, &QPushButton::clicked, this, &FileInfoWidget::infoButtonClickedSlot, Qt::UniqueConnection);
}
grid.setRowStretch(row, 0);
++ row;
}
return row;
}
void FileInfoWidget::setInfo(const infoData &info1, const infoData &info2)
{
QString topTitle = FILEINFOWIDGET_DEFAULT_WINDOW_TITLE;
int row = 0;
if (!info2.isEmpty())
widgetAt<QLabel>(&grid, row++, 0, 2)->setText(QStringLiteral("1: %1").arg(info1.title));
else
if (!info1.title.isEmpty()) topTitle = info1.title;
row = addInfo(info1, row, 0);
if (!info2.isEmpty())
{
widgetAt<QFrame>(&grid, row++, 0, 2)->setFrameStyle(QFrame::HLine);
widgetAt<QLabel>(&grid, row++, 0, 2)->setText(QStringLiteral("2: %2").arg(info2.title));
}
row = addInfo(info2, row, 1);
clear(row);
if (row)
{
grid.setColumnStretch(1, 1); // Last column should stretch
grid.setRowStretch(row-1, 1); // Last row should stretch
}
if (parentWidget())
parentWidget()->setWindowTitle(topTitle);
}
void FileInfoWidget::infoButtonClickedSlot()
{
auto button = qobject_cast<QPushButton*>(QObject::sender());
if (button)
emit infoButtonClicked(button->property(kInfoIndex).toInt(),
button->property(kInfoButtonID).toInt());
}