From e91237b54c2f58eaa8a2ce36bf016e2d8e8588f2 Mon Sep 17 00:00:00 2001
From: Mika Salmela <mika.salmela@digia.com>
Date: Thu, 6 Feb 2014 12:56:54 +0200
Subject: Multiseries support for surface

Task-number: QTRD-2767

Change-Id: Ifa7ca07f2afdb27974ad20819f0a4646293764b0
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>
---
 src/datavisualization/utils/surfaceobject.cpp |  7 +++++++
 src/datavisualization/utils/surfaceobject_p.h | 13 ++++++++-----
 src/datavisualization/utils/texturehelper.cpp | 12 ++++++++++++
 src/datavisualization/utils/texturehelper_p.h |  1 +
 4 files changed, 28 insertions(+), 5 deletions(-)

(limited to 'src/datavisualization/utils')

diff --git a/src/datavisualization/utils/surfaceobject.cpp b/src/datavisualization/utils/surfaceobject.cpp
index b0cd6c82..cfaab09c 100644
--- a/src/datavisualization/utils/surfaceobject.cpp
+++ b/src/datavisualization/utils/surfaceobject.cpp
@@ -25,6 +25,10 @@
 QT_BEGIN_NAMESPACE_DATAVISUALIZATION
 
 SurfaceObject::SurfaceObject()
+    : m_surfaceType(Undefined),
+      m_columns(0),
+      m_rows(0),
+      m_gridIndexCount(0)
 {
     m_indicesType = GL_UNSIGNED_INT;
     initializeOpenGLFunctions();
@@ -668,6 +672,9 @@ GLuint SurfaceObject::gridIndexCount()
 QVector3D SurfaceObject::vertexAt(int column, int row)
 {
     int pos = 0;
+    if (m_surfaceType == Undefined || !m_vertices.size())
+        return zeroVector;
+
     if (m_surfaceType == SurfaceFlat)
         pos = row * (m_columns * 2 - 2) + column * 2 - (column > 0);
     else
diff --git a/src/datavisualization/utils/surfaceobject_p.h b/src/datavisualization/utils/surfaceobject_p.h
index ec1a30bd..f51c2909 100644
--- a/src/datavisualization/utils/surfaceobject_p.h
+++ b/src/datavisualization/utils/surfaceobject_p.h
@@ -39,6 +39,13 @@ QT_BEGIN_NAMESPACE_DATAVISUALIZATION
 
 class SurfaceObject : public AbstractObjectHelper
 {
+public:
+    enum SurfaceType {
+        SurfaceSmooth,
+        SurfaceFlat,
+        Undefined
+    };
+
 public:
     SurfaceObject();
     ~SurfaceObject();
@@ -71,11 +78,7 @@ private:
                        bool changeGeometry);
 
 private:
-    enum SurfaceType {
-        SurfaceSmooth,
-        SurfaceFlat
-    };
-    int m_surfaceType;
+    SurfaceType m_surfaceType;
     int m_columns;
     int m_rows;
     GLuint m_gridElementbuffer;
diff --git a/src/datavisualization/utils/texturehelper.cpp b/src/datavisualization/utils/texturehelper.cpp
index 91d70946..0f5c8313 100644
--- a/src/datavisualization/utils/texturehelper.cpp
+++ b/src/datavisualization/utils/texturehelper.cpp
@@ -151,6 +151,18 @@ GLuint TextureHelper::createSelectionTexture(const QSize &size, GLuint &frameBuf
     return textureid;
 }
 
+GLuint TextureHelper::createUniformTexture(const QColor &color)
+{
+    QImage image(QSize(int(uniformTextureWidth), int(uniformTextureHeight)),
+                 QImage::Format_RGB32);
+    QPainter pmp(&image);
+    pmp.setBrush(QBrush(color));
+    pmp.setPen(Qt::NoPen);
+    pmp.drawRect(0, 0, int(uniformTextureWidth), int(uniformTextureHeight));
+
+    return create2DTexture(image, false, true, false, true);
+}
+
 GLuint TextureHelper::createGradientTexture(const QLinearGradient &gradient)
 {
     QImage image(QSize(int(gradientTextureWidth), int(gradientTextureHeight)),
diff --git a/src/datavisualization/utils/texturehelper_p.h b/src/datavisualization/utils/texturehelper_p.h
index 17553f30..f9a23a08 100644
--- a/src/datavisualization/utils/texturehelper_p.h
+++ b/src/datavisualization/utils/texturehelper_p.h
@@ -48,6 +48,7 @@ class TextureHelper : protected QOpenGLFunctions
     GLuint createCubeMapTexture(const QImage &image, bool useTrilinearFiltering = false);
     // Returns selection texture and inserts generated framebuffers to framebuffer parameters
     GLuint createSelectionTexture(const QSize &size, GLuint &frameBuffer, GLuint &depthBuffer);
+    GLuint createUniformTexture(const QColor &color);
     GLuint createGradientTexture(const QLinearGradient &gradient);
 #if !defined(QT_OPENGL_ES_2)
     GLuint createDepthTexture(const QSize &size, GLuint textureSize);
-- 
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