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
|
/***************************************************************************
* Copyright (C) 2008 by Fredrik Höglund <[email protected]> *
* *
* 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 2 of the License, or *
* (at your option) any later version. *
* *
* 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, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
#include "ktooltipdelegate.h"
#include "ktooltip.h"
#include <QApplication>
#include <QPainter>
#include <QIcon>
#ifdef Q_WS_X11
# include <QX11Info>
# include <X11/Xlib.h>
# include <X11/extensions/shape.h>
#endif
// ----------------------------------------------------------------------------
KStyleOptionToolTip::KStyleOptionToolTip()
: fontMetrics(QApplication::font())
{
}
// ----------------------------------------------------------------------------
KToolTipDelegate::KToolTipDelegate() : QObject()
{
}
KToolTipDelegate::~KToolTipDelegate()
{
}
QSize KToolTipDelegate::sizeHint(const KStyleOptionToolTip &option, const KToolTipItem &item) const
{
QSize size;
size.rwidth() = option.fontMetrics.width(item.text());
size.rheight() = option.fontMetrics.lineSpacing();
QIcon icon = item.icon();
if (!icon.isNull()) {
const QSize iconSize = icon.actualSize(option.decorationSize);
size.rwidth() += iconSize.width() + 4;
size.rheight() = qMax(size.height(), iconSize.height());
}
return size + QSize(20, 20);
}
void KToolTipDelegate::paint(QPainter *painter,
const KStyleOptionToolTip &option,
const KToolTipItem &item) const
{
bool haveAlpha = haveAlphaChannel();
painter->setRenderHint(QPainter::Antialiasing);
QPainterPath path;
if (haveAlpha)
path.addRoundRect(option.rect.adjusted(0, 0, -1, -1), 25);
else
path.addRect(option.rect.adjusted(0, 0, -1, -1));
QColor color = option.palette.color(QPalette::ToolTipBase);
QColor from = color.lighter(105);
QColor to = color.darker(120);
QLinearGradient gradient(0, 0, 0, 1);
gradient.setCoordinateMode(QGradient::ObjectBoundingMode);
gradient.setColorAt(0, from);
gradient.setColorAt(1, to);
painter->translate(.5, .5);
painter->setPen(QPen(Qt::black, 1));
painter->setBrush(gradient);
painter->drawPath(path);
painter->translate(-.5, -.5);
if (haveAlpha) {
QLinearGradient mask(0, 0, 0, 1);
gradient.setCoordinateMode(QGradient::ObjectBoundingMode);
gradient.setColorAt(0, QColor(0, 0, 0, 192));
gradient.setColorAt(1, QColor(0, 0, 0, 72));
painter->setCompositionMode(QPainter::CompositionMode_DestinationIn);
painter->fillRect(option.rect, gradient);
painter->setCompositionMode(QPainter::CompositionMode_SourceOver);
}
QRect textRect = option.rect.adjusted(10, 10, -10, -10);
QIcon icon = item.icon();
if (!icon.isNull()) {
const QSize iconSize = icon.actualSize(option.decorationSize);
painter->drawPixmap(textRect.topLeft(), icon.pixmap(iconSize));
textRect.adjust(iconSize.width() + 4, 0, 0, 0);
}
painter->drawText(textRect, Qt::AlignLeft | Qt::AlignVCenter, item.text());
}
QRegion KToolTipDelegate::inputShape(const KStyleOptionToolTip &option) const
{
return QRegion(option.rect);
}
QRegion KToolTipDelegate::shapeMask(const KStyleOptionToolTip &option) const
{
return QRegion(option.rect);
}
bool KToolTipDelegate::haveAlphaChannel() const
{
#ifdef Q_WS_X11
return QX11Info::isCompositingManagerRunning();
#else
return false;
#endif
}
|
