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kurlnavigatorbuttonbase.cpp
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1/*****************************************************************************
2 * Copyright (C) 2006-2010 by Peter Penz <peter.penz@gmx.at> *
3 * Copyright (C) 2006 by Aaron J. Seigo <aseigo@kde.org> *
4 * *
5 * This library is free software; you can redistribute it and/or *
6 * modify it under the terms of the GNU Library General Public *
7 * License as published by the Free Software Foundation; either *
8 * version 2 of the License, or (at your option) any later version. *
9 * *
10 * This library is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
13 * Library General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU Library General Public License *
16 * along with this library; see the file COPYING.LIB. If not, write to *
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, *
18 * Boston, MA 02110-1301, USA. *
19 *****************************************************************************/
20
21#include "kurlnavigatorbuttonbase_p.h"
22
23#include <kcolorscheme.h>
24#include <kicon.h>
25#include <klocale.h>
26#include <kmenu.h>
27#include <kurl.h>
28
29#include <QApplication>
30#include <QClipboard>
31#include <QMimeData>
32#include <QStyle>
33#include <QStyleOptionFocusRect>
34
35namespace KDEPrivate
36{
37
38KUrlNavigatorButtonBase::KUrlNavigatorButtonBase(QWidget* parent) :
39 QPushButton(parent),
40 m_active(true),
41 m_displayHint(0)
42{
43 setFocusPolicy(Qt::TabFocus);
44 setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Fixed);
45 setMinimumHeight(parent->minimumHeight());
46
47 connect(this, SIGNAL(pressed()), parent, SLOT(requestActivation()));
48}
49
50KUrlNavigatorButtonBase::~KUrlNavigatorButtonBase()
51{
52}
53
54void KUrlNavigatorButtonBase::setActive(bool active)
55{
56 if (m_active != active) {
57 m_active = active;
58 update();
59 }
60}
61
62bool KUrlNavigatorButtonBase::isActive() const
63{
64 return m_active;
65}
66
67void KUrlNavigatorButtonBase::setDisplayHintEnabled(DisplayHint hint,
68 bool enable)
69{
70 if (enable) {
71 m_displayHint = m_displayHint | hint;
72 } else {
73 m_displayHint = m_displayHint & ~hint;
74 }
75 update();
76}
77
78bool KUrlNavigatorButtonBase::isDisplayHintEnabled(DisplayHint hint) const
79{
80 return (m_displayHint & hint) > 0;
81}
82
83void KUrlNavigatorButtonBase::focusInEvent(QFocusEvent *event)
84{
85 setDisplayHintEnabled(EnteredHint, true);
86 QPushButton::focusInEvent(event);
87}
88
89void KUrlNavigatorButtonBase::focusOutEvent(QFocusEvent *event)
90{
91 setDisplayHintEnabled(EnteredHint, false);
92 QPushButton::focusOutEvent(event);
93}
94
95void KUrlNavigatorButtonBase::enterEvent(QEvent* event)
96{
97 QPushButton::enterEvent(event);
98 setDisplayHintEnabled(EnteredHint, true);
99 update();
100}
101
102void KUrlNavigatorButtonBase::leaveEvent(QEvent* event)
103{
104 QPushButton::leaveEvent(event);
105 setDisplayHintEnabled(EnteredHint, false);
106 update();
107}
108
109void KUrlNavigatorButtonBase::drawHoverBackground(QPainter* painter)
110{
111 const bool isHighlighted = isDisplayHintEnabled(EnteredHint) ||
112 isDisplayHintEnabled(DraggedHint) ||
113 isDisplayHintEnabled(PopupActiveHint);
114
115 QColor backgroundColor = isHighlighted ? palette().color(QPalette::Highlight) : Qt::transparent;
116 if (!m_active && isHighlighted) {
117 backgroundColor.setAlpha(128);
118 }
119
120 if (backgroundColor != Qt::transparent) {
121 // TODO: the backgroundColor should be applied to the style
122 QStyleOptionViewItemV4 option;
123 option.initFrom(this);
124 option.state = QStyle::State_Enabled | QStyle::State_MouseOver;
125 option.viewItemPosition = QStyleOptionViewItemV4::OnlyOne;
126 style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &option, painter, this);
127 }
128}
129
130QColor KUrlNavigatorButtonBase::foregroundColor() const
131{
132 const bool isHighlighted = isDisplayHintEnabled(EnteredHint) ||
133 isDisplayHintEnabled(DraggedHint) ||
134 isDisplayHintEnabled(PopupActiveHint);
135
136 QColor foregroundColor = palette().color(foregroundRole());
137
138 int alpha = m_active ? 255 : 128;
139 if (!m_active && !isHighlighted) {
140 alpha -= alpha / 4;
141 }
142 foregroundColor.setAlpha(alpha);
143
144 return foregroundColor;
145}
146
147void KUrlNavigatorButtonBase::activate()
148{
149 setActive(true);
150}
151
152} // namespace KDEPrivate
153
154#include "kurlnavigatorbuttonbase_p.moc"
KDEPrivate::KUrlNavigatorButtonBase::enterEvent
virtual void enterEvent(QEvent *event)
Definition: kurlnavigatorbuttonbase.cpp:95
KDEPrivate::KUrlNavigatorButtonBase::KUrlNavigatorButtonBase
KUrlNavigatorButtonBase(QWidget *parent)
Definition: kurlnavigatorbuttonbase.cpp:38
KDEPrivate::KUrlNavigatorButtonBase::leaveEvent
virtual void leaveEvent(QEvent *event)
Definition: kurlnavigatorbuttonbase.cpp:102
KDEPrivate::KUrlNavigatorButtonBase::setDisplayHintEnabled
void setDisplayHintEnabled(DisplayHint hint, bool enable)
Definition: kurlnavigatorbuttonbase.cpp:67
KDEPrivate::KUrlNavigatorButtonBase::drawHoverBackground
void drawHoverBackground(QPainter *painter)
Definition: kurlnavigatorbuttonbase.cpp:109
KDEPrivate::KUrlNavigatorButtonBase::DisplayHint
DisplayHint
Definition: kurlnavigatorbuttonbase_p.h:58
KDEPrivate::KUrlNavigatorButtonBase::DraggedHint
@ DraggedHint
Definition: kurlnavigatorbuttonbase_p.h:60
KDEPrivate::KUrlNavigatorButtonBase::PopupActiveHint
@ PopupActiveHint
Definition: kurlnavigatorbuttonbase_p.h:61
KDEPrivate::KUrlNavigatorButtonBase::EnteredHint
@ EnteredHint
Definition: kurlnavigatorbuttonbase_p.h:59
KDEPrivate::KUrlNavigatorButtonBase::focusOutEvent
virtual void focusOutEvent(QFocusEvent *event)
Definition: kurlnavigatorbuttonbase.cpp:89
KDEPrivate::KUrlNavigatorButtonBase::setActive
void setActive(bool active)
When having several URL navigator instances, it is important to provide a visual difference to indica...
Definition: kurlnavigatorbuttonbase.cpp:54
KDEPrivate::KUrlNavigatorButtonBase::~KUrlNavigatorButtonBase
virtual ~KUrlNavigatorButtonBase()
Definition: kurlnavigatorbuttonbase.cpp:50
KDEPrivate::KUrlNavigatorButtonBase::focusInEvent
virtual void focusInEvent(QFocusEvent *event)
Definition: kurlnavigatorbuttonbase.cpp:83
KDEPrivate::KUrlNavigatorButtonBase::isDisplayHintEnabled
bool isDisplayHintEnabled(DisplayHint hint) const
Definition: kurlnavigatorbuttonbase.cpp:78
KDEPrivate::KUrlNavigatorButtonBase::foregroundColor
QColor foregroundColor() const
Returns the foreground color by respecting the current display hint.
Definition: kurlnavigatorbuttonbase.cpp:130
KDEPrivate::KUrlNavigatorButtonBase::isActive
bool isActive() const
Definition: kurlnavigatorbuttonbase.cpp:62
QPushButton
QWidget
kcolorscheme.h
kicon.h
klocale.h
kmenu.h
kurl.h
kurlnavigatorbuttonbase_p.h
KDEPrivate
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