1 | /* |
2 | * Copyright © 2008, 2009 Fredrik Höglund <fredrik@kde.org> |
3 | * |
4 | * This library is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU Library General Public |
6 | * License as published by the Free Software Foundation; either |
7 | * version 2 of the License, or (at your option) any later version. |
8 | * |
9 | * This library is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Library General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU Library General Public License |
15 | * along with this library; see the file COPYING.LIB. If not, write to |
16 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
17 | * Boston, MA 02110-1301, USA. |
18 | */ |
19 | |
20 | #include "dialog.h" |
21 | #include "dialogshadows_p.h" |
22 | |
23 | #include <QApplication> |
24 | #include <QDesktopWidget> |
25 | #include <QGraphicsView> |
26 | #include <QGraphicsWidget> |
27 | #include <QGraphicsScene> |
28 | |
29 | #include <KWindowSystem> |
30 | |
31 | #include <Plasma/Applet> |
32 | #include <Plasma/FrameSvg> |
33 | #include <Plasma/WindowEffects> |
34 | |
35 | #ifdef Q_WS_X11 |
36 | # include <QX11Info> |
37 | # include <X11/Xlib.h> |
38 | #endif |
39 | |
40 | |
41 | Dialog::Dialog(QWidget *parent) |
42 | : QWidget(parent, Qt::Popup), m_widget(0) |
43 | { |
44 | setAttribute(Qt::WA_TranslucentBackground); |
45 | |
46 | #ifdef Q_WS_X11 |
47 | setAttribute(Qt::WA_X11NetWmWindowTypeDropDownMenu); |
48 | |
49 | if (KWindowSystem::compositingActive()) { |
50 | setAttribute(Qt::WA_NoSystemBackground, false); |
51 | Plasma::WindowEffects::overrideShadow(winId(), true); |
52 | } else { |
53 | setAttribute(Qt::WA_NoSystemBackground); |
54 | } |
55 | #endif |
56 | |
57 | KWindowSystem::setState(effectiveWinId(), NET::SkipTaskbar | NET::SkipPager); |
58 | |
59 | QPalette pal = palette(); |
60 | pal.setColor(backgroundRole(), Qt::transparent); |
61 | setPalette(pal); |
62 | |
63 | m_background = new Plasma::FrameSvg(this); |
64 | m_background->setImagePath("dialogs/background" ); |
65 | |
66 | m_scene = new QGraphicsScene(this); |
67 | m_view = new QGraphicsView(m_scene, this); |
68 | m_view->setFrameShape(QFrame::NoFrame); |
69 | m_view->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); |
70 | m_view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); |
71 | m_view->viewport()->setAutoFillBackground(false); |
72 | } |
73 | |
74 | Dialog::~Dialog() |
75 | { |
76 | } |
77 | |
78 | void Dialog::setGraphicsWidget(QGraphicsWidget *widget) |
79 | { |
80 | m_widget = widget; |
81 | m_scene->addItem(widget); |
82 | } |
83 | |
84 | void Dialog::show(Plasma::Applet *applet) |
85 | { |
86 | Plasma::FrameSvg::EnabledBorders borders = Plasma::FrameSvg::AllBorders; |
87 | m_background->setEnabledBorders(borders); |
88 | |
89 | int left = m_background->marginSize(Plasma::LeftMargin); |
90 | int top = m_background->marginSize(Plasma::TopMargin); |
91 | int right = m_background->marginSize(Plasma::RightMargin); |
92 | int bottom = m_background->marginSize(Plasma::BottomMargin); |
93 | |
94 | switch (applet->location()) |
95 | { |
96 | case Plasma::BottomEdge: |
97 | borders &= ~Plasma::FrameSvg::BottomBorder; |
98 | bottom = qMin(bottom, 2); |
99 | break; |
100 | |
101 | case Plasma::TopEdge: |
102 | borders &= ~Plasma::FrameSvg::TopBorder; |
103 | top = qMin(top, 2); |
104 | break; |
105 | |
106 | case Plasma::LeftEdge: |
107 | borders &= ~Plasma::FrameSvg::LeftBorder; |
108 | left = qMin(left, 2); |
109 | break; |
110 | |
111 | case Plasma::RightEdge: |
112 | borders &= ~Plasma::FrameSvg::RightBorder; |
113 | right = qMin(right, 2); |
114 | break; |
115 | |
116 | default: |
117 | break; |
118 | } |
119 | |
120 | const QSize margin(left + right, top + bottom); |
121 | QSize size = m_widget->preferredSize().toSize() + margin; |
122 | QPoint pos = applet->popupPosition(size); |
123 | const QRect availableGeometry = QApplication::desktop()->availableGeometry(pos); |
124 | |
125 | if (pos.y() < 0) { |
126 | size.rheight() += pos.y(); |
127 | pos.ry() = 0; |
128 | } else if (applet->location() == Plasma::TopEdge && |
129 | pos.y() + size.height() > availableGeometry.bottom()) { |
130 | size.rheight() -= pos.y() + size.height() - availableGeometry.bottom(); |
131 | } |
132 | |
133 | if (pos.x() < 0) { |
134 | size.rwidth() += pos.x(); |
135 | pos.rx() = 0; |
136 | } else if (applet->location() == Plasma::LeftEdge && |
137 | pos.x() + size.width() > availableGeometry.right()) { |
138 | size.rwidth() -= pos.x() + size.width() - availableGeometry.right(); |
139 | } |
140 | |
141 | m_background->setEnabledBorders(borders); |
142 | setContentsMargins(left, top, right, bottom); |
143 | |
144 | m_widget->resize(size - margin); |
145 | resize(size); |
146 | move(pos); |
147 | |
148 | QWidget::show(); |
149 | DialogShadows::self()->addWindow(this, borders); |
150 | } |
151 | |
152 | void Dialog::resizeEvent(QResizeEvent *event) |
153 | { |
154 | Q_UNUSED(event) |
155 | |
156 | m_background->resizeFrame(rect().size()); |
157 | m_view->setGeometry(contentsRect()); |
158 | |
159 | if (KWindowSystem::compositingActive()) { |
160 | Plasma::WindowEffects::enableBlurBehind(winId(), true, m_background->mask()); |
161 | } else { |
162 | setMask(m_background->mask()); |
163 | } |
164 | } |
165 | |
166 | void Dialog::paintEvent(QPaintEvent *event) |
167 | { |
168 | Q_UNUSED(event) |
169 | |
170 | QPainter p(this); |
171 | p.setCompositionMode(QPainter::CompositionMode_Source); |
172 | p.fillRect(rect(), Qt::transparent); |
173 | p.setCompositionMode(QPainter::CompositionMode_SourceOver); |
174 | m_background->paintFrame(&p); |
175 | } |
176 | |
177 | void Dialog::mousePressEvent(QMouseEvent *event) |
178 | { |
179 | if (!rect().contains(event->pos())) { |
180 | hide(); |
181 | } |
182 | } |
183 | |
184 | |