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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
//
// W A R N I N G
// -------------
//
// This file is not part of the QtDataVisualization API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef DRAWER_P_H
#define DRAWER_P_H
#include <private/datavisualizationglobal_p.h>
#include <private/labelitem_p.h>
#include <private/abstractrenderitem_p.h>
#include <QtDataVisualization/q3dbars.h>
#include <QtDataVisualization/q3dtheme.h>
QT_BEGIN_NAMESPACE
class ShaderHelper;
class ObjectHelper;
class AbstractObjectHelper;
class SurfaceObject;
class TextureHelper;
class Q3DCamera;
class Abstract3DRenderer;
class ScatterPointBufferHelper;
class Drawer : public QObject, public QOpenGLFunctions
{
Q_OBJECT
public:
enum LabelPosition {
LabelBelow = 0,
LabelLow,
LabelMid,
LabelHigh,
LabelOver,
LabelBottom, // Absolute positions from here onward, used for axes (QDataItem is ignored)
LabelTop,
LabelLeft,
LabelRight
};
public:
explicit Drawer(Q3DTheme *theme);
~Drawer();
void initializeOpenGL();
void setTheme(Q3DTheme *theme);
Q3DTheme *theme() const;
QFont font() const;
inline GLfloat scaledFontSize() const { return m_scaledFontSize; }
void drawObject(ShaderHelper *shader, AbstractObjectHelper *object, GLuint textureId = 0,
GLuint depthTextureId = 0, GLuint textureId3D = 0);
void drawSelectionObject(ShaderHelper *shader, AbstractObjectHelper *object);
void drawSurfaceGrid(ShaderHelper *shader, SurfaceObject *object);
void drawPoint(ShaderHelper *shader);
void drawPoints(ShaderHelper *shader, ScatterPointBufferHelper *object, GLuint textureId);
void drawLine(ShaderHelper *shader);
void drawLabel(const AbstractRenderItem &item, const LabelItem &labelItem,
const QMatrix4x4 &viewmatrix, const QMatrix4x4 &projectionmatrix,
const QVector3D &positionComp, const QQuaternion &rotation, GLfloat itemHeight,
QAbstract3DGraph::SelectionFlags mode, ShaderHelper *shader, ObjectHelper *object,
const Q3DCamera *camera, bool useDepth = false, bool rotateAlong = false,
LabelPosition position = LabelOver,
Qt::Alignment alignment = Qt::AlignCenter, bool isSlicing = false,
bool isSelecting = false);
void generateSelectionLabelTexture(Abstract3DRenderer *item);
void generateLabelItem(LabelItem &item, const QString &text, int widestLabel = 0);
Q_SIGNALS:
void drawerChanged();
private:
Q3DTheme *m_theme;
TextureHelper *m_textureHelper;
GLuint m_pointbuffer;
GLuint m_linebuffer;
GLfloat m_scaledFontSize;
};
QT_END_NAMESPACE
#endif
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