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
|
/*
* Abstract Contact Delegate - base class for other delegates
*
* Copyright (C) 2011 Martin Klapetek <martin.klapetek@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "abstract-contact-delegate.h"
#include <QApplication>
#include <QStyle>
#include <QPainter>
#include <QToolTip>
#include <QHelpEvent>
#include <QFontDatabase>
#include <QAbstractItemView>
#include <QStyleOptionViewItem>
#include <KIconLoader>
#include <KTp/types.h>
const int SPACING = 2;
const int ACCOUNT_ICON_SIZE = 22;
const qreal GROUP_ICON_OPACITY = 0.6;
AbstractContactDelegate::AbstractContactDelegate(QObject *parent)
: QStyledItemDelegate(parent)
{
}
AbstractContactDelegate::~AbstractContactDelegate()
{
}
void AbstractContactDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
if (index.data(KTp::RowTypeRole).toInt() == KTp::ContactRowType || index.data(KTp::RowTypeRole).toInt() == KTp::PersonRowType) {
paintContact(painter, option, index);
} else {
paintHeader(painter, option, index);
}
}
QSize AbstractContactDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
{
if (index.data(KTp::RowTypeRole).toInt() == KTp::ContactRowType || index.data(KTp::RowTypeRole).toInt() == KTp::PersonRowType) {
return sizeHintContact(option, index);
} else {
return sizeHintHeader(option, index);
}
}
void AbstractContactDelegate::paintHeader(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
QStyleOptionViewItem opt = option;
initStyleOption(&opt, index);
painter->save();
painter->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform | QPainter::HighQualityAntialiasing);
painter->setClipRect(opt.rect);
QStyle *style = QApplication::style();
style->drawPrimitive(QStyle::PE_PanelItemViewItem, &option, painter);
QRect groupRect = opt.rect;
//paint the background
QBrush bgBrush(option.palette.color(QPalette::Active, QPalette::Button).lighter(105));
painter->fillRect(groupRect, bgBrush);
//paint very subtle line at the bottom
QPen thinLinePen;
thinLinePen.setWidth(0);
thinLinePen.setColor(option.palette.color(QPalette::Active, QPalette::Button));
painter->setPen(thinLinePen);
//to get nice sharp 1px line we need to turn AA off, otherwise it will be all blurry
painter->setRenderHint(QPainter::Antialiasing, false);
painter->drawLine(groupRect.bottomLeft(), groupRect.bottomRight());
painter->setRenderHint(QPainter::Antialiasing, true);
//remove spacing from the sides and one point to the bottom for the 1px line
groupRect.adjust(SPACING, 0, -SPACING, -1);
//get the proper rect for the expand sign
int iconSize = IconSize(KIconLoader::Toolbar);
QStyleOption expandSignOption = option;
expandSignOption.rect = groupRect;
//FIXME hardcoded magic...though corresponds with the list indentation
expandSignOption.rect.setSize(QSize(14, iconSize));
expandSignOption.rect.moveLeft(groupRect.left());
expandSignOption.rect.moveTop(groupRect.top() + groupRect.height()/2 - expandSignOption.rect.height()/2);
// simulates mouseover to highlight arrow when selected with keyboard
if (option.state & QStyle::State_Selected) {
expandSignOption.state |= QStyle::State_MouseOver;
}
//paint the expand sign
if (option.state & QStyle::State_Open) {
style->drawPrimitive(QStyle::PE_IndicatorArrowDown, &expandSignOption, painter);
} else {
style->drawPrimitive(QStyle::PE_IndicatorArrowRight, &expandSignOption, painter);
}
QFont groupFont = QFontDatabase::systemFont(QFontDatabase::SmallestReadableFont);
//paint the group icon
QRect groupIconRect;
groupIconRect.setSize(QSize(ACCOUNT_ICON_SIZE, ACCOUNT_ICON_SIZE));
groupIconRect.moveRight(groupRect.right());
groupIconRect.moveTop(groupRect.top() + groupRect.height()/2 - groupIconRect.height()/2);
if (index.data(KTp::RowTypeRole).toInt() == KTp::AccountRowType) {
//draw the icon with some opacity
painter->setOpacity(GROUP_ICON_OPACITY);
painter->drawPixmap(groupIconRect, index.data(Qt::DecorationRole).value<QIcon>().pixmap(ACCOUNT_ICON_SIZE));
painter->setOpacity(1.0);
} else {
groupIconRect.setWidth(0);
}
//paint the header string
QRect groupLabelRect = groupRect.adjusted(expandSignOption.rect.width() + SPACING * 2, 0, -groupIconRect.width() -SPACING, 0);
QString countsString = QString("(%1/%2)").arg(index.data(KTp::HeaderOnlineUsersRole).toString(),
index.data(KTp::HeaderTotalUsersRole).toString());
QString groupHeaderString = index.data(Qt::DisplayRole).toString();
QFontMetrics groupFontMetrics(groupFont);
painter->setFont(groupFont);
if (index.data(KTp::HeaderTotalUsersRole).toInt() > 0) {
painter->setPen(option.palette.color(QPalette::Disabled, QPalette::Text));
painter->drawText(groupLabelRect, Qt::AlignVCenter | Qt::AlignRight, countsString);
}
painter->setPen(option.palette.color(QPalette::Active, QPalette::Text));
painter->drawText(groupLabelRect, Qt::AlignVCenter | Qt::AlignLeft,
groupFontMetrics.elidedText(groupHeaderString, Qt::ElideRight,
groupLabelRect.width() - groupFontMetrics.width(countsString) - SPACING));
painter->restore();
}
QSize AbstractContactDelegate::sizeHintHeader(const QStyleOptionViewItem &option, const QModelIndex &index) const
{
Q_UNUSED(option)
Q_UNUSED(index)
// Add one point to the bottom for the 1px line
return QSize(0, qMax(ACCOUNT_ICON_SIZE, QFontDatabase::systemFont(QFontDatabase::SmallestReadableFont).pixelSize()) + SPACING + 1);
}
bool AbstractContactDelegate::helpEvent(QHelpEvent *event, QAbstractItemView *view, const QStyleOptionViewItem &option, const QModelIndex &index)
{
Q_UNUSED(event)
Q_UNUSED(view)
Q_UNUSED(option)
Q_UNUSED(index)
return false;
}
void AbstractContactDelegate::avatarToGray(QPixmap &avatar) const
{
QImage image = avatar.toImage();
QImage alpha= image.alphaChannel();
for (int i = 0; i < image.width(); ++i) {
for (int j = 0; j < image.height(); ++j) {
int colour = qGray(image.pixel(i, j));
image.setPixel(i, j, qRgb(colour, colour, colour));
}
}
image.setAlphaChannel(alpha);
avatar = QPixmap::fromImage(image);
}
|
