HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · src/chartsqml2/declarativechartnode.cpp

Fix debug-and-release build...

Fix debug-and-release build Charts is part of the Qt release and there is no need to do magic hacks to install the qmldir file. This was supposed to help running examples separately, but we assume that the lib is shipped with Qt proper. The problem was that the qmldir file would be simultaneously copied into the same location twice which will fail on Windows. Change-Id: I4d765c18367f7985c7dbfadbc7ddae78ce24f398 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com> Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com> Reviewed-by: Titta Heikkala <titta.heikkala@theqtcompany.com>

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             declarativechartnode.cpp
        
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        Titta Heikkala
    
Updated license headers...

              r2845
            
      /******************************************************************************

        Miikka Heikkinen
    
Accelerating lineseries with OpenGL...

              r2820
            
      **

        Titta Heikkala
    
Updated license headers...

              r2845
            
      ** Copyright (C) 2015 The Qt Company Ltd.

      ** Contact: http://www.qt.io/licensing/

        Miikka Heikkinen
    
Accelerating lineseries with OpenGL...

              r2820
            
      **

      ** This file is part of the Qt Charts module.

      **

        Titta Heikkala
    
Updated license headers...

              r2845
            
      ** $QT_BEGIN_LICENSE:COMM$

        Miikka Heikkinen
    
Accelerating lineseries with OpenGL...

              r2820
            
      **

        Titta Heikkala
    
Updated license headers...

              r2845
            
      ** Commercial License Usage

      ** Licensees holding valid commercial Qt licenses may use this file in

      ** accordance with the commercial license agreement provided with the

      ** Software or, alternatively, in accordance with the terms contained in

      ** a written agreement between you and The Qt Company. For licensing terms

      ** and conditions see http://www.qt.io/terms-conditions. For further

      ** information use the contact form at http://www.qt.io/contact-us.

        Miikka Heikkinen
    
Accelerating lineseries with OpenGL...

              r2820
            
      **

        Titta Heikkala
    
Updated license headers...

              r2845
            
      ** $QT_END_LICENSE$

      **

      ******************************************************************************/

        Miikka Heikkinen
    
Accelerating lineseries with OpenGL...

              r2820
            
      #include "declarativechartnode.h"

      #include "declarativerendernode.h"

      #include <QtGui/QOpenGLContext>

      #include <QtGui/QOpenGLFunctions>

      #include <QtGui/QOpenGLFramebufferObjectFormat>

      #include <QtGui/QOpenGLFramebufferObject>

      #include <QOpenGLShaderProgram>

      #include <QtGui/QOpenGLBuffer>

      QT_CHARTS_BEGIN_NAMESPACE

      // This node handles displaying of the chart itself

      DeclarativeChartNode::DeclarativeChartNode(QQuickWindow *window) :

          QSGSimpleTextureNode(),

          m_texture(0),

          m_window(window),

          m_textureOptions(0),

          m_textureSize(1, 1),

          m_glRenderNode(0)

      {

          initializeOpenGLFunctions();

          // Our texture node must have a texture, so use a default one pixel texture

          GLuint defaultTexture = 0;

          glGenTextures(1, &defaultTexture);

          glBindTexture(GL_TEXTURE_2D, defaultTexture);

          uchar buf[4] = { 0, 0, 0, 0 };

          glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &buf);

          QQuickWindow::CreateTextureOptions defaultTextureOptions = QQuickWindow::CreateTextureOptions(

                  QQuickWindow::TextureHasAlphaChannel | QQuickWindow::TextureOwnsGLTexture);

          m_texture = m_window->createTextureFromId(defaultTexture, QSize(1, 1), defaultTextureOptions);

          setTexture(m_texture);

          setFiltering(QSGTexture::Linear);

          // Create child node for rendering GL graphics

          m_glRenderNode = new DeclarativeRenderNode(m_window);

          m_glRenderNode->setFlag(OwnedByParent);

          appendChildNode(m_glRenderNode);

          m_glRenderNode->setRect(0, 0, 0, 0); // Hide child node by default

      }

      DeclarativeChartNode::~DeclarativeChartNode()

      {

          delete m_texture;

      }

      // Must be called on render thread and in context

      void DeclarativeChartNode::createTextureFromImage(const QImage &chartImage)

      {

          if (chartImage.size() != m_textureSize)

              m_textureSize = chartImage.size();

          delete m_texture;

          m_texture = m_window->createTextureFromImage(chartImage, m_textureOptions);

          setTexture(m_texture);

      }

      QT_CHARTS_END_NAMESPACE

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Titta Heikkala Updated license headers...	r2845	/******************************************************************************
Miikka Heikkinen Accelerating lineseries with OpenGL...	r2820	**
Titta Heikkala Updated license headers...	r2845	** Copyright (C) 2015 The Qt Company Ltd.
		** Contact: http://www.qt.io/licensing/
Miikka Heikkinen Accelerating lineseries with OpenGL...	r2820	**
		** This file is part of the Qt Charts module.
		**
Titta Heikkala Updated license headers...	r2845	** $QT_BEGIN_LICENSE:COMM$
Miikka Heikkinen Accelerating lineseries with OpenGL...	r2820	**
Titta Heikkala Updated license headers...	r2845	** Commercial License Usage
		** Licensees holding valid commercial Qt licenses may use this file in
		** accordance with the commercial license agreement provided with the
		** Software or, alternatively, in accordance with the terms contained in
		** a written agreement between you and The Qt Company. For licensing terms
		** and conditions see http://www.qt.io/terms-conditions. For further
		** information use the contact form at http://www.qt.io/contact-us.
Miikka Heikkinen Accelerating lineseries with OpenGL...	r2820	**
Titta Heikkala Updated license headers...	r2845	** $QT_END_LICENSE$
		**
		******************************************************************************/
Miikka Heikkinen Accelerating lineseries with OpenGL...	r2820
		#include "declarativechartnode.h"
		#include "declarativerendernode.h"
		#include <QtGui/QOpenGLContext>
		#include <QtGui/QOpenGLFunctions>
		#include <QtGui/QOpenGLFramebufferObjectFormat>
		#include <QtGui/QOpenGLFramebufferObject>
		#include <QOpenGLShaderProgram>
		#include <QtGui/QOpenGLBuffer>

		QT_CHARTS_BEGIN_NAMESPACE

		// This node handles displaying of the chart itself
		DeclarativeChartNode::DeclarativeChartNode(QQuickWindow *window) :
		QSGSimpleTextureNode(),
		m_texture(0),
		m_window(window),
		m_textureOptions(0),
		m_textureSize(1, 1),
		m_glRenderNode(0)
		{
		initializeOpenGLFunctions();

		// Our texture node must have a texture, so use a default one pixel texture
		GLuint defaultTexture = 0;
		glGenTextures(1, &defaultTexture);
		glBindTexture(GL_TEXTURE_2D, defaultTexture);
		uchar buf[4] = { 0, 0, 0, 0 };
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &buf);

		QQuickWindow::CreateTextureOptions defaultTextureOptions = QQuickWindow::CreateTextureOptions(
		QQuickWindow::TextureHasAlphaChannel \| QQuickWindow::TextureOwnsGLTexture);
		m_texture = m_window->createTextureFromId(defaultTexture, QSize(1, 1), defaultTextureOptions);

		setTexture(m_texture);
		setFiltering(QSGTexture::Linear);

		// Create child node for rendering GL graphics
		m_glRenderNode = new DeclarativeRenderNode(m_window);
		m_glRenderNode->setFlag(OwnedByParent);
		appendChildNode(m_glRenderNode);
		m_glRenderNode->setRect(0, 0, 0, 0); // Hide child node by default
		}

		DeclarativeChartNode::~DeclarativeChartNode()
		{
		delete m_texture;
		}

		// Must be called on render thread and in context
		void DeclarativeChartNode::createTextureFromImage(const QImage &chartImage)
		{
		if (chartImage.size() != m_textureSize)
		m_textureSize = chartImage.size();

		delete m_texture;
		m_texture = m_window->createTextureFromImage(chartImage, m_textureOptions);
		setTexture(m_texture);
		}

		QT_CHARTS_END_NAMESPACE