Some clean-up and simplification for JobObject class.
[MUtilities.git] / src / GUI.cpp
blob6e0bbd1fa0bd62d30931ae579fb06fe8d82a56a4
1 ///////////////////////////////////////////////////////////////////////////////
2 // MuldeR's Utilities for Qt
3 // Copyright (C) 2004-2016 LoRd_MuldeR <MuldeR2@GMX.de>
4 //
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Lesser General Public
7 // License as published by the Free Software Foundation; either
8 // version 2.1 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 // Lesser General Public License for more details.
15 // You should have received a copy of the GNU Lesser General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 // http://www.gnu.org/licenses/lgpl-2.1.txt
20 //////////////////////////////////////////////////////////////////////////////////
22 //MUtils
23 #include <MUtils/GUI.h>
24 #include <MUtils/OSSupport.h>
26 //Internal
27 #include "Utils_Win32.h"
29 //Qt
30 #include <QIcon>
31 #include <QApplication>
32 #include <QWidget>
33 #include <QMutex>
35 //Win32 API
36 #ifndef _INC_WINDOWS
37 #define WIN32_LEAN_AND_MEAN 1
38 #include <Windows.h>
39 #endif //_INC_WINDOWS
41 ///////////////////////////////////////////////////////////////////////////////
42 // BROADCAST
43 ///////////////////////////////////////////////////////////////////////////////
45 bool MUtils::GUI::broadcast(int eventType, const bool &onlyToVisible)
47 if(QApplication *app = dynamic_cast<QApplication*>(QApplication::instance()))
49 qDebug("Broadcasting %d", eventType);
51 bool allOk = true;
52 QEvent poEvent(static_cast<QEvent::Type>(eventType));
53 QWidgetList list = app->topLevelWidgets();
55 while(!list.isEmpty())
57 QWidget *widget = list.takeFirst();
58 if(!onlyToVisible || widget->isVisible())
60 if(!app->sendEvent(widget, &poEvent))
62 allOk = false;
67 qDebug("Broadcast %d done (%s)", eventType, (allOk ? "OK" : "Stopped"));
68 return allOk;
70 else
72 qWarning("Broadcast failed, could not get QApplication instance!");
73 return false;
77 ///////////////////////////////////////////////////////////////////////////////
78 // WINDOW ICON
79 ///////////////////////////////////////////////////////////////////////////////
81 namespace MUtils
83 namespace GUI
85 namespace Internal
87 class WindowIconHelper : public QObject
89 public:
90 WindowIconHelper(QWidget *const parent, const HICON hIcon, const bool &bIsBigIcon)
92 QObject(parent),
93 m_hIcon(hIcon)
95 SendMessage(parent->winId(), WM_SETICON, (bIsBigIcon ? ICON_BIG : ICON_SMALL), LPARAM(hIcon));
98 virtual ~WindowIconHelper(void)
100 if(m_hIcon)
102 DestroyIcon(m_hIcon);
106 private:
107 const HICON m_hIcon;
113 bool MUtils::GUI::set_window_icon(QWidget *const window, const QIcon &icon, const bool bIsBigIcon)
115 if((!icon.isNull()) && window->winId())
117 const int extend = (bIsBigIcon ? 32 : 16);
118 if(const HICON hIcon = (HICON) MUtils::Win32Utils::qicon_to_hicon(icon, extend, extend))
120 new Internal::WindowIconHelper(window, hIcon, bIsBigIcon); /*will be free'd using QObject parent mechanism*/
121 return true;
124 return false;
127 ///////////////////////////////////////////////////////////////////////////////
128 // BLINK WINDOW
129 ///////////////////////////////////////////////////////////////////////////////
131 static QMutex g_blinkMutex;
133 void MUtils::GUI::blink_window(QWidget *const poWindow, const unsigned int &count, const unsigned int &delay)
135 const double maxOpac = 1.0;
136 const double minOpac = 0.3;
137 const double delOpac = 0.1;
139 if(!g_blinkMutex.tryLock())
141 qWarning("Blinking is already in progress, skipping!");
142 return;
147 const int steps = static_cast<int>(ceil(maxOpac - minOpac) / delOpac);
148 const int sleep = static_cast<int>(floor(static_cast<double>(delay) / static_cast<double>(steps)));
149 const double opacity = poWindow->windowOpacity();
151 for(unsigned int i = 0; i < count; i++)
153 for(double x = maxOpac; x >= minOpac; x -= delOpac)
155 poWindow->setWindowOpacity(x);
156 QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
157 MUtils::OS::sleep_ms(sleep);
160 for(double x = minOpac; x <= maxOpac; x += delOpac)
162 poWindow->setWindowOpacity(x);
163 QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
164 MUtils::OS::sleep_ms(sleep);
168 poWindow->setWindowOpacity(opacity);
169 QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
171 catch(...)
173 qWarning("Exception error while blinking!");
176 g_blinkMutex.unlock();
179 ///////////////////////////////////////////////////////////////////////////////
180 // FORCE QUIT
181 ///////////////////////////////////////////////////////////////////////////////
183 void MUtils::GUI::force_quit(void)
185 qApp->closeAllWindows();
186 qApp->quit();
189 ///////////////////////////////////////////////////////////////////////////////