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
|
/* Copyright 2013 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <QHeaderView>
#include <QApplication>
#include <QMouseEvent>
#include <QDrag>
#include <QPainter>
#include "VersionListView.h"
#include "Common.h"
VersionListView::VersionListView(QWidget *parent)
:QTreeView ( parent )
{
m_emptyString = tr("No versions are currently available.");
}
void VersionListView::rowsInserted(const QModelIndex &parent, int start, int end)
{
if(!m_itemCount)
viewport()->update();
m_itemCount += end-start+1;
QTreeView::rowsInserted(parent, start, end);
}
void VersionListView::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end)
{
m_itemCount -= end-start+1;
if(!m_itemCount)
viewport()->update();
QTreeView::rowsInserted(parent, start, end);
}
void VersionListView::setModel(QAbstractItemModel *model)
{
m_itemCount = model->rowCount();
if(!m_itemCount)
viewport()->update();
QTreeView::setModel(model);
}
void VersionListView::reset()
{
if(model())
{
m_itemCount = model()->rowCount();
}
viewport()->update();
QTreeView::reset();
}
void VersionListView::setEmptyString(QString emptyString)
{
m_emptyString = emptyString;
if(!m_itemCount)
{
viewport()->update();
}
}
void VersionListView::paintEvent(QPaintEvent *event)
{
if(m_itemCount)
{
QTreeView::paintEvent(event);
}
else
{
paintInfoLabel(event);
}
}
void VersionListView::paintInfoLabel(QPaintEvent *event)
{
//calculate the rect for the overlay
QPainter painter(viewport());
painter.setRenderHint(QPainter::Antialiasing, true);
QFont font("sans", 20);
font.setBold(true);
QRect bounds = viewport()->geometry();
bounds.moveTop(0);
QTextLayout layout(m_emptyString, font);
qreal height = 0.0;
qreal widthUsed = 0.0;
QStringList lines = viewItemTextLayout(layout, bounds.width() - 20, height, widthUsed);
QRect rect (0,0, widthUsed, height);
rect.setWidth(rect.width()+20);
rect.setHeight(rect.height()+20);
rect.moveCenter(bounds.center());
//check if we are allowed to draw in our area
if (!event->rect().intersects(rect)) {
return;
}
//draw the letter of the topmost item semitransparent in the middle
QColor background = QApplication::palette().color(QPalette::Foreground);
QColor foreground = QApplication::palette().color(QPalette::Base);
/*
background.setAlpha(128 - scrollFade);
foreground.setAlpha(128 - scrollFade);
*/
painter.setBrush(QBrush(background));
painter.setPen(foreground);
painter.drawRoundedRect(rect, 5.0, 5.0);
foreground.setAlpha(190);
painter.setPen(foreground);
painter.setFont(font);
painter.drawText(rect, Qt::AlignCenter, lines.join("\n"));
}
/*
void ModListView::setModel ( QAbstractItemModel* model )
{
QTreeView::setModel ( model );
auto head = header();
head->setStretchLastSection(false);
// HACK: this is true for the checkbox column of mod lists
auto string = model->headerData(0,head->orientation()).toString();
if(!string.size())
{
head->setSectionResizeMode(0, QHeaderView::ResizeToContents);
head->setSectionResizeMode(1, QHeaderView::Stretch);
for(int i = 2; i < head->count(); i++)
head->setSectionResizeMode(i, QHeaderView::ResizeToContents);
}
else
{
head->setSectionResizeMode(0, QHeaderView::Stretch);
for(int i = 1; i < head->count(); i++)
head->setSectionResizeMode(i, QHeaderView::ResizeToContents);
}
}
*/
|
