From 32e78f4b6cc0e0ef710259ae73c39bf607cbb743 Mon Sep 17 00:00:00 2001
From: Gunnar Sletta <gunnar.sletta@digia.com>
Date: Fri, 24 May 2013 14:09:01 +0200
Subject: [PATCH] Manual test for window transparency
Change-Id: I8b9fdd14382904b5a0c2a1ecaabf01b209034b95
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
---
tests/manual/manual.pro | 5 +-
.../windowtransparency/windowtransparency.cpp | 200 ++++++++++++++++++
.../windowtransparency/windowtransparency.pro | 6 +
3 files changed, 209 insertions(+), 2 deletions(-)
create mode 100644 tests/manual/windowtransparency/windowtransparency.cpp
create mode 100644 tests/manual/windowtransparency/windowtransparency.pro
diff --git a/tests/manual/manual.pro b/tests/manual/manual.pro
index 4a466aa4728..d97c69025b5 100644
--- a/tests/manual/manual.pro
+++ b/tests/manual/manual.pro
@@ -38,7 +38,8 @@ windowmodality \
widgetgrab \
xembed-raster \
xembed-widgets \
-dialogs
+dialogs \
+windowtransparency
!contains(QT_CONFIG, openssl):!contains(QT_CONFIG, openssl-linked):SUBDIRS -= qssloptions
@@ -49,4 +50,4 @@ win32 {
}
lessThan(QT_MAJOR_VERSION, 5): SUBDIRS -= bearerex lance qnetworkaccessmanager/qget qnetworkreply \
-qpainfo qscreen socketengine xembed-raster xembed-widgets
+qpainfo qscreen socketengine xembed-raster xembed-widgets windowtransparency
diff --git a/tests/manual/windowtransparency/windowtransparency.cpp b/tests/manual/windowtransparency/windowtransparency.cpp
new file mode 100644
index 00000000000..e90fee82f6d
--- /dev/null
+++ b/tests/manual/windowtransparency/windowtransparency.cpp
@@ -0,0 +1,200 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
+** of its contributors may be used to endorse or promote products derived
+** from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include <QtWidgets>
+
+class GLWindow : public QWindow
+{
+public:
+ GLWindow(Qt::WindowFlags flags)
+ : gl(0)
+ {
+ setFlags(flags);
+ setSurfaceType(OpenGLSurface);
+
+ QSurfaceFormat format;
+ format.setAlphaBufferSize(8);
+ format.setSamples(16);
+ setFormat(format);
+ }
+
+ void exposeEvent(QExposeEvent *)
+ {
+ if (!isExposed())
+ return;
+
+ if (!gl) {
+ gl = new QOpenGLContext();
+ gl->setFormat(requestedFormat());
+ gl->create();
+ }
+
+ gl->makeCurrent(this);
+
+ QOpenGLShaderProgram prog;
+ prog.addShaderFromSourceCode(QOpenGLShader::Vertex,
+ "attribute highp vec4 a_Pos;"
+ "attribute lowp vec4 a_Color;"
+ "varying lowp vec4 v_Color;"
+ "void main() {"
+ " gl_Position = a_Pos;"
+ " v_Color = a_Color;"
+ "}");
+ prog.addShaderFromSourceCode(QOpenGLShader::Fragment,
+ "varying lowp vec4 v_Color;"
+ "void main() {"
+ " gl_FragColor = v_Color;"
+ "}");
+ prog.bind();
+
+ glClearColor(0, 0, 0, 1);
+ glClear(GL_COLOR_BUFFER_BIT);
+ glViewport(0, 0, width(), height());
+
+ prog.enableAttributeArray("a_Pos");
+ prog.enableAttributeArray("a_Color");
+
+ float coords[] = { -0.7f, 0.7f,
+ 0.8f, 0.8f,
+ -0.8f, -0.8f,
+ 0.7f, -0.7f };
+ float colors[] = { 1, 0, 0, 1,
+ 0, 1, 0, 1,
+ 0, 0, 1, 1,
+ 0, 0, 0, 0 };
+
+ prog.setAttributeArray("a_Pos", GL_FLOAT, coords, 2, 0);
+ prog.setAttributeArray("a_Color", GL_FLOAT, colors, 4, 0);
+
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+ prog.disableAttributeArray("a_Pos");
+ prog.disableAttributeArray("a_Color");
+
+ gl->swapBuffers(this);
+ }
+
+ void mousePressEvent(QMouseEvent *)
+ {
+ QCoreApplication::quit();
+ }
+
+private:
+ QOpenGLContext *gl;
+};
+
+class Widget : public QWidget
+{
+public:
+ Widget(Qt::WindowFlags flags)
+ : QWidget(0, flags)
+ {
+ setAttribute(Qt::WA_TranslucentBackground);
+ }
+
+ void paintEvent(QPaintEvent *)
+ {
+ QPainter p(this);
+
+ p.setRenderHint(QPainter::Antialiasing);
+
+ p.fillRect(rect(), QColor("steelblue"));
+
+ int w = width();
+ int h = height();
+ int w2 = width() / 2;
+ int h2 = height() / 2;
+
+ QPainterPath path;
+ path.moveTo(0, 0);
+ path.cubicTo(w2, 0, w2, h2, w, h);
+ path.cubicTo(w2, h, w2, h2, 0, 0);
+
+ QLinearGradient lg(0, 0, w, h);
+ lg.setColorAt(0.0, Qt::transparent);
+ lg.setColorAt(0.5, QColor("palegreen"));
+ lg.setColorAt(1.0, Qt::transparent);
+
+ p.setCompositionMode(QPainter::CompositionMode_Source);
+ p.fillPath(path, lg);
+ }
+
+ void mousePressEvent(QMouseEvent *)
+ {
+ QCoreApplication::quit();
+ }
+
+};
+
+int main(int argc, char **argv)
+{
+ QApplication app(argc, argv);
+
+ // mask: on/off
+ // opacity: on/off
+
+ for (int i=0; i<4; ++i) {
+ bool mask = i & 0x1;
+ bool opacity = i & 0x2;
+
+ Qt::WindowFlags flags = Qt::FramelessWindowHint;
+
+ Widget *widget = new Widget(flags);
+ GLWindow *window = new GLWindow(flags);
+
+ widget->setGeometry(100 + 100 * i, 100, 80, 80);
+ window->setGeometry(100 + 100 * i, 200, 80, 80);
+ if (mask) {
+ QRegion region(0, 0, 80, 80, QRegion::Ellipse);
+ widget->setMask(region);
+ window->setMask(region);
+ }
+ if (opacity) {
+ widget->setWindowOpacity(0.5);
+ window->setOpacity(0.5);
+ }
+
+ widget->show();
+ window->show();
+ }
+
+ return app.exec();
+}
diff --git a/tests/manual/windowtransparency/windowtransparency.pro b/tests/manual/windowtransparency/windowtransparency.pro
new file mode 100644
index 00000000000..0de5c6feb54
--- /dev/null
+++ b/tests/manual/windowtransparency/windowtransparency.pro
@@ -0,0 +1,6 @@
+QT += widgets
+
+SOURCES += \
+ windowtransparency.cpp
+
+CONFIG += console
--
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