Notice: Undefined offset: 1 in /home/developpez/www/developpez-com/upload/qt/doc/redir.php on line 39 Qt 4.7: composition.cpp Example File (demos/composition/composition.cpp)
Viadeo Twitter Google Bookmarks ! Facebook Digg del.icio.us MySpace Yahoo MyWeb Blinklist Netvouz Reddit Simpy StumbleUpon Bookmarks Windows Live Favorites 
Logo Documentation Qt ·  Page d'accueil  ·  Toutes les classes  ·  Toutes les fonctions  ·  Vues d'ensemble  · 

composition.cpp Example File

demos/composition/composition.cpp
 /****************************************************************************
 **
 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the demonstration applications of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** GNU Lesser General Public License Usage
 ** This file may be used under the terms of the GNU Lesser General Public
 ** License version 2.1 as published by the Free Software Foundation and
 ** appearing in the file LICENSE.LGPL included in the packaging of this
 ** file. Please review the following information to ensure the GNU Lesser
 ** General Public License version 2.1 requirements will be met:
 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
 ** In addition, as a special exception, Nokia gives you certain additional
 ** rights. These rights are described in the Nokia Qt LGPL Exception
 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU General
 ** Public License version 3.0 as published by the Free Software Foundation
 ** and appearing in the file LICENSE.GPL included in the packaging of this
 ** file. Please review the following information to ensure the GNU General
 ** Public License version 3.0 requirements will be met:
 ** http://www.gnu.org/copyleft/gpl.html.
 **
 ** Other Usage
 ** Alternatively, this file may be used in accordance with the terms and
 ** conditions contained in a signed written agreement between you and Nokia.
 **
 **
 **
 **
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "composition.h"
 #include <QBoxLayout>
 #include <QRadioButton>
 #include <QTimer>
 #include <QDateTime>
 #include <QSlider>
 #include <QMouseEvent>
 #include <qmath.h>

 const int animationInterval = 15; // update every 16 ms = ~60FPS

 CompositionWidget::CompositionWidget(QWidget *parent)
     : QWidget(parent)
 {
     CompositionRenderer *view = new CompositionRenderer(this);

     QGroupBox *mainGroup = new QGroupBox(parent);
     mainGroup->setTitle(tr("Composition Modes"));

     QGroupBox *modesGroup = new QGroupBox(mainGroup);
     modesGroup->setTitle(tr("Mode"));

     rbClear = new QRadioButton(tr("Clear"), modesGroup);
     connect(rbClear, SIGNAL(clicked()), view, SLOT(setClearMode()));
     rbSource = new QRadioButton(tr("Source"), modesGroup);
     connect(rbSource, SIGNAL(clicked()), view, SLOT(setSourceMode()));
     rbDest = new QRadioButton(tr("Destination"), modesGroup);
     connect(rbDest, SIGNAL(clicked()), view, SLOT(setDestMode()));
     rbSourceOver = new QRadioButton(tr("Source Over"), modesGroup);
     connect(rbSourceOver, SIGNAL(clicked()), view, SLOT(setSourceOverMode()));
     rbDestOver = new QRadioButton(tr("Destination Over"), modesGroup);
     connect(rbDestOver, SIGNAL(clicked()), view, SLOT(setDestOverMode()));
     rbSourceIn = new QRadioButton(tr("Source In"), modesGroup);
     connect(rbSourceIn, SIGNAL(clicked()), view, SLOT(setSourceInMode()));
     rbDestIn = new QRadioButton(tr("Dest In"), modesGroup);
     connect(rbDestIn, SIGNAL(clicked()), view, SLOT(setDestInMode()));
     rbSourceOut = new QRadioButton(tr("Source Out"), modesGroup);
     connect(rbSourceOut, SIGNAL(clicked()), view, SLOT(setSourceOutMode()));
     rbDestOut = new QRadioButton(tr("Dest Out"), modesGroup);
     connect(rbDestOut, SIGNAL(clicked()), view, SLOT(setDestOutMode()));
     rbSourceAtop = new QRadioButton(tr("Source Atop"), modesGroup);
     connect(rbSourceAtop, SIGNAL(clicked()), view, SLOT(setSourceAtopMode()));
     rbDestAtop = new QRadioButton(tr("Dest Atop"), modesGroup);
     connect(rbDestAtop, SIGNAL(clicked()), view, SLOT(setDestAtopMode()));
     rbXor = new QRadioButton(tr("Xor"), modesGroup);
     connect(rbXor, SIGNAL(clicked()), view, SLOT(setXorMode()));

     rbPlus = new QRadioButton(tr("Plus"), modesGroup);
     connect(rbPlus, SIGNAL(clicked()), view, SLOT(setPlusMode()));
     rbMultiply = new QRadioButton(tr("Multiply"), modesGroup);
     connect(rbMultiply, SIGNAL(clicked()), view, SLOT(setMultiplyMode()));
     rbScreen = new QRadioButton(tr("Screen"), modesGroup);
     connect(rbScreen, SIGNAL(clicked()), view, SLOT(setScreenMode()));
     rbOverlay = new QRadioButton(tr("Overlay"), modesGroup);
     connect(rbOverlay, SIGNAL(clicked()), view, SLOT(setOverlayMode()));
     rbDarken = new QRadioButton(tr("Darken"), modesGroup);
     connect(rbDarken, SIGNAL(clicked()), view, SLOT(setDarkenMode()));
     rbLighten = new QRadioButton(tr("Lighten"), modesGroup);
     connect(rbLighten, SIGNAL(clicked()), view, SLOT(setLightenMode()));
     rbColorDodge = new QRadioButton(tr("Color Dodge"), modesGroup);
     connect(rbColorDodge, SIGNAL(clicked()), view, SLOT(setColorDodgeMode()));
     rbColorBurn = new QRadioButton(tr("Color Burn"), modesGroup);
     connect(rbColorBurn, SIGNAL(clicked()), view, SLOT(setColorBurnMode()));
     rbHardLight = new QRadioButton(tr("Hard Light"), modesGroup);
     connect(rbHardLight, SIGNAL(clicked()), view, SLOT(setHardLightMode()));
     rbSoftLight = new QRadioButton(tr("Soft Light"), modesGroup);
     connect(rbSoftLight, SIGNAL(clicked()), view, SLOT(setSoftLightMode()));
     rbDifference = new QRadioButton(tr("Difference"), modesGroup);
     connect(rbDifference, SIGNAL(clicked()), view, SLOT(setDifferenceMode()));
     rbExclusion = new QRadioButton(tr("Exclusion"), modesGroup);
     connect(rbExclusion, SIGNAL(clicked()), view, SLOT(setExclusionMode()));

     QGroupBox *circleColorGroup = new QGroupBox(mainGroup);
     circleColorGroup->setTitle(tr("Circle color"));
     QSlider *circleColorSlider = new QSlider(Qt::Horizontal, circleColorGroup);
     circleColorSlider->setRange(0, 359);
     circleColorSlider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
     connect(circleColorSlider, SIGNAL(valueChanged(int)), view, SLOT(setCircleColor(int)));

     QGroupBox *circleAlphaGroup = new QGroupBox(mainGroup);
     circleAlphaGroup->setTitle(tr("Circle alpha"));
     QSlider *circleAlphaSlider = new QSlider(Qt::Horizontal, circleAlphaGroup);
     circleAlphaSlider->setRange(0, 255);
     circleAlphaSlider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
     connect(circleAlphaSlider, SIGNAL(valueChanged(int)), view, SLOT(setCircleAlpha(int)));

     QPushButton *showSourceButton = new QPushButton(mainGroup);
     showSourceButton->setText(tr("Show Source"));
 #if defined(QT_OPENGL_SUPPORT) && !defined(QT_OPENGL_ES)
     QPushButton *enableOpenGLButton = new QPushButton(mainGroup);
     enableOpenGLButton->setText(tr("Use OpenGL"));
     enableOpenGLButton->setCheckable(true);
     enableOpenGLButton->setChecked(view->usesOpenGL());

     if (!QGLFormat::hasOpenGL() || !QGLPixelBuffer::hasOpenGLPbuffers())
         enableOpenGLButton->hide();
 #endif
     QPushButton *whatsThisButton = new QPushButton(mainGroup);
     whatsThisButton->setText(tr("What's This?"));
     whatsThisButton->setCheckable(true);

     QPushButton *animateButton = new QPushButton(mainGroup);
     animateButton->setText(tr("Animated"));
     animateButton->setCheckable(true);
     animateButton->setChecked(true);

     QHBoxLayout *viewLayout = new QHBoxLayout(this);
     viewLayout->addWidget(view);
     viewLayout->addWidget(mainGroup);

     QVBoxLayout *mainGroupLayout = new QVBoxLayout(mainGroup);
     mainGroupLayout->addWidget(circleColorGroup);
     mainGroupLayout->addWidget(circleAlphaGroup);
     mainGroupLayout->addWidget(modesGroup);
     mainGroupLayout->addStretch();
     mainGroupLayout->addWidget(animateButton);
     mainGroupLayout->addWidget(whatsThisButton);
     mainGroupLayout->addWidget(showSourceButton);
 #if defined(QT_OPENGL_SUPPORT) && !defined(QT_OPENGL_ES)
     mainGroupLayout->addWidget(enableOpenGLButton);
 #endif

     QGridLayout *modesLayout = new QGridLayout(modesGroup);
     modesLayout->addWidget(rbClear,             0,      0);
     modesLayout->addWidget(rbSource,            1,      0);
     modesLayout->addWidget(rbDest,              2,      0);
     modesLayout->addWidget(rbSourceOver,        3,      0);
     modesLayout->addWidget(rbDestOver,          4,      0);
     modesLayout->addWidget(rbSourceIn,          5,      0);
     modesLayout->addWidget(rbDestIn,            6,      0);
     modesLayout->addWidget(rbSourceOut,         7,      0);
     modesLayout->addWidget(rbDestOut,           8,      0);
     modesLayout->addWidget(rbSourceAtop,        9,      0);
     modesLayout->addWidget(rbDestAtop,         10,      0);
     modesLayout->addWidget(rbXor,              11,      0);

     modesLayout->addWidget(rbPlus,              0,      1);
     modesLayout->addWidget(rbMultiply,          1,      1);
     modesLayout->addWidget(rbScreen,            2,      1);
     modesLayout->addWidget(rbOverlay,           3,      1);
     modesLayout->addWidget(rbDarken,            4,      1);
     modesLayout->addWidget(rbLighten,           5,      1);
     modesLayout->addWidget(rbColorDodge,        6,      1);
     modesLayout->addWidget(rbColorBurn,         7,      1);
     modesLayout->addWidget(rbHardLight,         8,      1);
     modesLayout->addWidget(rbSoftLight,         9,      1);
     modesLayout->addWidget(rbDifference,       10,      1);
     modesLayout->addWidget(rbExclusion,        11,      1);

     QVBoxLayout *circleColorLayout = new QVBoxLayout(circleColorGroup);
     circleColorLayout->addWidget(circleColorSlider);

     QVBoxLayout *circleAlphaLayout = new QVBoxLayout(circleAlphaGroup);
     circleAlphaLayout->addWidget(circleAlphaSlider);

     view->loadDescription(":res/composition/composition.html");
     view->loadSourceFile(":res/composition/composition.cpp");

     connect(whatsThisButton, SIGNAL(clicked(bool)), view, SLOT(setDescriptionEnabled(bool)));
     connect(view, SIGNAL(descriptionEnabledChanged(bool)), whatsThisButton, SLOT(setChecked(bool)));
     connect(showSourceButton, SIGNAL(clicked()), view, SLOT(showSource()));
 #if defined(QT_OPENGL_SUPPORT) && !defined(QT_OPENGL_ES)
     connect(enableOpenGLButton, SIGNAL(clicked(bool)), view, SLOT(enableOpenGL(bool)));
 #endif
     connect(animateButton, SIGNAL(toggled(bool)), view, SLOT(setAnimationEnabled(bool)));

     circleColorSlider->setValue(270);
     circleAlphaSlider->setValue(200);
     rbSourceOut->animateClick();

     setWindowTitle(tr("Composition Modes"));
 }

 void CompositionWidget::nextMode()
 {
     /*
       if (!m_animation_enabled)
       return;
       if (rbClear->isChecked()) rbSource->animateClick();
       if (rbSource->isChecked()) rbDest->animateClick();
       if (rbDest->isChecked()) rbSourceOver->animateClick();
       if (rbSourceOver->isChecked()) rbDestOver->animateClick();
       if (rbDestOver->isChecked()) rbSourceIn->animateClick();
       if (rbSourceIn->isChecked()) rbDestIn->animateClick();
       if (rbDestIn->isChecked()) rbSourceOut->animateClick();
       if (rbSourceOut->isChecked()) rbDestOut->animateClick();
       if (rbDestOut->isChecked()) rbSourceAtop->animateClick();
       if (rbSourceAtop->isChecked()) rbDestAtop->animateClick();
       if (rbDestAtop->isChecked()) rbXor->animateClick();
       if (rbXor->isChecked()) rbClear->animateClick();
     */
 }

 CompositionRenderer::CompositionRenderer(QWidget *parent)
     : ArthurFrame(parent)
 {
     m_animation_enabled = true;
     m_animationTimer = startTimer(animationInterval);
 #ifdef Q_WS_QWS
     m_image = QPixmap(":res/composition/flower.jpg");
     m_image.setAlphaChannel(QPixmap(":res/composition/flower_alpha.jpg"));
 #else
     m_image = QImage(":res/composition/flower.jpg");
     m_image.setAlphaChannel(QImage(":res/composition/flower_alpha.jpg"));
 #endif
     m_circle_alpha = 127;
     m_circle_hue = 255;
     m_current_object = NoObject;
     m_composition_mode = QPainter::CompositionMode_SourceOut;

     m_circle_pos = QPoint(200, 100);

     setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 #ifdef QT_OPENGL_SUPPORT
     m_pbuffer = 0;
     m_pbuffer_size = 1024;
 #endif
 }

 QRectF rectangle_around(const QPointF &p, const QSizeF &size = QSize(250, 200))
 {
     QRectF rect(p, size);
     rect.translate(-size.width()/2, -size.height()/2);
     return rect;
 }

 void CompositionRenderer::setAnimationEnabled(bool enabled)
 {
     if (m_animation_enabled == enabled)
         return;
     m_animation_enabled = enabled;
     if (enabled) {
         Q_ASSERT(!m_animationTimer);
         m_animationTimer = startTimer(animationInterval);
     } else {
         killTimer(m_animationTimer);
         m_animationTimer = 0;
     }
 }

 void CompositionRenderer::updateCirclePos()
 {
     if (m_current_object != NoObject)
         return;
     QDateTime dt = QDateTime::currentDateTime();
     qreal t = (dt.toTime_t() * 1000 + dt.time().msec()) / 1000.0;

     qreal x = width() / qreal(2) + (qCos(t*8/11) + qSin(-t)) * width() / qreal(4);
     qreal y = height() / qreal(2) + (qSin(t*6/7) + qCos(t * qreal(1.5))) * height() / qreal(4);

     setCirclePos(QLineF(m_circle_pos, QPointF(x, y)).pointAt(0.02));
 }

 void CompositionRenderer::drawBase(QPainter &p)
 {
     p.setPen(Qt::NoPen);

     QLinearGradient rect_gradient(0, 0, 0, height());
     rect_gradient.setColorAt(0, Qt::red);
     rect_gradient.setColorAt(.17, Qt::yellow);
     rect_gradient.setColorAt(.33, Qt::green);
     rect_gradient.setColorAt(.50, Qt::cyan);
     rect_gradient.setColorAt(.66, Qt::blue);
     rect_gradient.setColorAt(.81, Qt::magenta);
     rect_gradient.setColorAt(1, Qt::red);
     p.setBrush(rect_gradient);
     p.drawRect(width() / 2, 0, width() / 2, height());

     QLinearGradient alpha_gradient(0, 0, width(), 0);
     alpha_gradient.setColorAt(0, Qt::white);
     alpha_gradient.setColorAt(0.2, Qt::white);
     alpha_gradient.setColorAt(0.5, Qt::transparent);
     alpha_gradient.setColorAt(0.8, Qt::white);
     alpha_gradient.setColorAt(1, Qt::white);

     p.setCompositionMode(QPainter::CompositionMode_DestinationIn);
     p.setBrush(alpha_gradient);
     p.drawRect(0, 0, width(), height());

     p.setCompositionMode(QPainter::CompositionMode_DestinationOver);

     p.setPen(Qt::NoPen);
     p.setRenderHint(QPainter::SmoothPixmapTransform);
 #ifdef Q_WS_QWS
     p.drawPixmap(rect(), m_image);
 #else
     p.drawImage(rect(), m_image);
 #endif
 }

 void CompositionRenderer::drawSource(QPainter &p)
 {
     p.setPen(Qt::NoPen);
     p.setRenderHint(QPainter::Antialiasing);
     p.setCompositionMode(m_composition_mode);

     QRectF circle_rect = rectangle_around(m_circle_pos);
     QColor color = QColor::fromHsvF(m_circle_hue / 360.0, 1, 1, m_circle_alpha / 255.0);
     QLinearGradient circle_gradient(circle_rect.topLeft(), circle_rect.bottomRight());
     circle_gradient.setColorAt(0, color.light());
     circle_gradient.setColorAt(0.5, color);
     circle_gradient.setColorAt(1, color.dark());
     p.setBrush(circle_gradient);

     p.drawEllipse(circle_rect);
 }

 void CompositionRenderer::paint(QPainter *painter)
 {
 #if defined(QT_OPENGL_SUPPORT) && !defined(QT_OPENGL_ES)
     if (usesOpenGL()) {

         int new_pbuf_size = m_pbuffer_size;
         if (size().width() > m_pbuffer_size ||
             size().height() > m_pbuffer_size)
             new_pbuf_size *= 2;

         if (size().width() < m_pbuffer_size/2 &&
             size().height() < m_pbuffer_size/2)
             new_pbuf_size /= 2;

         if (!m_pbuffer || new_pbuf_size != m_pbuffer_size) {
             if (m_pbuffer) {
                 m_pbuffer->deleteTexture(m_base_tex);
                 m_pbuffer->deleteTexture(m_compositing_tex);
                 delete m_pbuffer;
             }

             m_pbuffer = new QGLPixelBuffer(QSize(new_pbuf_size, new_pbuf_size), QGLFormat::defaultFormat(), glWidget());
             m_pbuffer->makeCurrent();
             m_base_tex = m_pbuffer->generateDynamicTexture();
             m_compositing_tex = m_pbuffer->generateDynamicTexture();
             m_pbuffer_size = new_pbuf_size;
         }

         if (size() != m_previous_size) {
             m_previous_size = size();
             QPainter p(m_pbuffer);
             p.setCompositionMode(QPainter::CompositionMode_Source);
             p.fillRect(QRect(0, 0, m_pbuffer->width(), m_pbuffer->height()), Qt::transparent);
             drawBase(p);
             p.end();
             m_pbuffer->updateDynamicTexture(m_base_tex);
         }

         qreal x_fraction = width()/float(m_pbuffer->width());
         qreal y_fraction = height()/float(m_pbuffer->height());

         {
             QPainter p(m_pbuffer);
             p.setCompositionMode(QPainter::CompositionMode_Source);
             p.fillRect(QRect(0, 0, m_pbuffer->width(), m_pbuffer->height()), Qt::transparent);

             p.save(); // Needed when using the GL1 engine
             p.beginNativePainting(); // Needed when using the GL2 engine

             glBindTexture(GL_TEXTURE_2D, m_base_tex);
             glEnable(GL_TEXTURE_2D);
             glColor4f(1.,1.,1.,1.);

             glBegin(GL_QUADS);
             {
                 glTexCoord2f(0, 1.0);
                 glVertex2f(0, 0);

                 glTexCoord2f(x_fraction, 1.0);
                 glVertex2f(width(), 0);

                 glTexCoord2f(x_fraction, 1.0-y_fraction);
                 glVertex2f(width(), height());

                 glTexCoord2f(0, 1.0-y_fraction);
                 glVertex2f(0, height());
             }
             glEnd();

             glDisable(GL_TEXTURE_2D);

             p.endNativePainting(); // Needed when using the GL2 engine
             p.restore(); // Needed when using the GL1 engine

             drawSource(p);
             p.end();
             m_pbuffer->updateDynamicTexture(m_compositing_tex);
         }

         painter->beginNativePainting(); // Needed when using the GL2 engine
         glWidget()->makeCurrent(); // Needed when using the GL1 engine
         glBindTexture(GL_TEXTURE_2D, m_compositing_tex);
         glEnable(GL_TEXTURE_2D);
         glEnable(GL_BLEND);
         glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
         glColor4f(1.,1.,1.,1.);
         glBegin(GL_QUADS);
         {
             glTexCoord2f(0, 1.0);
             glVertex2f(0, 0);

             glTexCoord2f(x_fraction, 1.0);
             glVertex2f(width(), 0);

             glTexCoord2f(x_fraction, 1.0-y_fraction);
             glVertex2f(width(), height());

             glTexCoord2f(0, 1.0-y_fraction);
             glVertex2f(0, height());
         }
         glEnd();
         glDisable(GL_TEXTURE_2D);
         painter->endNativePainting(); // Needed when using the GL2 engine
     } else
 #endif
     {
         // using a QImage
         if (m_buffer.size() != size()) {
 #ifdef Q_WS_QWS
             m_base_buffer = QPixmap(size());
             m_base_buffer.fill(Qt::transparent);
 #else
             m_buffer = QImage(size(), QImage::Format_ARGB32_Premultiplied);
             m_base_buffer = QImage(size(), QImage::Format_ARGB32_Premultiplied);

             m_base_buffer.fill(0);
 #endif

             QPainter p(&m_base_buffer);

             drawBase(p);
         }

 #ifdef Q_WS_QWS
         m_buffer = m_base_buffer;
 #else
         memcpy(m_buffer.bits(), m_base_buffer.bits(), m_buffer.byteCount());
 #endif

         {
             QPainter p(&m_buffer);
             drawSource(p);
         }

 #ifdef Q_WS_QWS
         painter->drawPixmap(0, 0, m_buffer);
 #else
         painter->drawImage(0, 0, m_buffer);
 #endif
     }
 }

 void CompositionRenderer::mousePressEvent(QMouseEvent *e)
 {
     setDescriptionEnabled(false);

     QRectF circle = rectangle_around(m_circle_pos);

     if (circle.contains(e->pos())) {
         m_current_object = Circle;
         m_offset = circle.center() - e->pos();
     } else {
         m_current_object = NoObject;
     }
     if (m_animation_enabled) {
         killTimer(m_animationTimer);
         m_animationTimer = 0;
     }
 }

 void CompositionRenderer::mouseMoveEvent(QMouseEvent *e)
 {
     if (m_current_object == Circle) setCirclePos(e->pos() + m_offset);
 }

 void CompositionRenderer::mouseReleaseEvent(QMouseEvent *)
 {
     m_current_object = NoObject;

     if (m_animation_enabled) {
         Q_ASSERT(!m_animationTimer);
         m_animationTimer = startTimer(animationInterval);
     }
 }

 void CompositionRenderer::timerEvent(QTimerEvent *event)
 {
     if (event->timerId() == m_animationTimer)
         updateCirclePos();
 }

 void CompositionRenderer::setCirclePos(const QPointF &pos)
 {
     const QRect oldRect = rectangle_around(m_circle_pos).toAlignedRect();
     m_circle_pos = pos;
     const QRect newRect = rectangle_around(m_circle_pos).toAlignedRect();
 #if defined(QT_OPENGL_SUPPORT) && !defined(QT_OPENGL_ES)
     if (usesOpenGL())
         update();
     else
 #endif
         update(oldRect | newRect);
 }
Publicité

Best Of

Actualités les plus lues

Semaine
Mois
Année
  1. « Quelque chose ne va vraiment pas avec les développeurs "modernes" », un développeur à "l'ancienne" critique la multiplication des bibliothèques 82
  2. Apercevoir la troisième dimension ou l'utilisation multithreadée d'OpenGL dans Qt, un article des Qt Quarterly traduit par Guillaume Belz 0
  3. Les développeurs ignorent-ils trop les failles découvertes dans leur code ? Prenez-vous en compte les remarques des autres ? 17
  4. BlackBerry 10 : premières images du prochain OS de RIM qui devrait intégrer des widgets et des tuiles inspirées de Windows Phone 0
  5. Quelles nouveautés de C++11 Visual C++ doit-il rapidement intégrer ? Donnez-nous votre avis 10
  6. Adieu qmake, bienvenue qbs : Qt Building Suite, un outil déclaratif et extensible pour la compilation de projets Qt 17
  7. 2017 : un quinquennat pour une nouvelle version du C++ ? Possible, selon Herb Sutter 6
Page suivante

Le blog Digia au hasard

Logo

Créer des applications avec un style Metro avec Qt, exemples en QML et C++, un article de Digia Qt traduit par Thibaut Cuvelier

Le blog Digia est l'endroit privilégié pour la communication sur l'édition commerciale de Qt, où des réponses publiques sont apportées aux questions les plus posées au support. Lire l'article.

Communauté

Ressources

Liens utiles

Contact

  • Vous souhaitez rejoindre la rédaction ou proposer un tutoriel, une traduction, une question... ? Postez dans le forum Contribuez ou contactez-nous par MP ou par email (voir en bas de page).

Qt dans le magazine

Cette page est une traduction d'une page de la documentation de Qt, écrite par Nokia Corporation and/or its subsidiary(-ies). Les éventuels problèmes résultant d'une mauvaise traduction ne sont pas imputables à Nokia. Qt 4.7
Copyright © 2012 Developpez LLC. Tous droits réservés Developpez LLC. Aucune reproduction, même partielle, ne peut être faite de ce site et de l'ensemble de son contenu : textes, documents et images sans l'autorisation expresse de Developpez LLC. Sinon, vous encourez selon la loi jusqu'à 3 ans de prison et jusqu'à 300 000 E de dommages et intérêts. Cette page est déposée à la SACD.
Vous avez déniché une erreur ? Un bug ? Une redirection cassée ? Ou tout autre problème, quel qu'il soit ? Ou bien vous désirez participer à ce projet de traduction ? N'hésitez pas à nous contacter ou par MP !
 
 
 
 
Partenaires

Hébergement Web