ImageViewOldGL Class Reference

#include <ImageViewOldGL.h>

Inherits QGLWidget.

Inherited by RangeViewGL, and SonarViewGL.

Public Member Functions
	ImageViewOldGL (ImageViewOld &parent)
virtual	~ImageViewOldGL ()
void	setGLViewPoint (int display_width=0, int display_height=0)
void	setAspectRatio (bool value)

Detailed Description

Deprecated:

This class is deprecated and will no longer be maintained. You should use the new ImageView widget.

Definition at line 24 of file ImageViewOldGL.h.

Constructor & Destructor Documentation

ImageViewOldGL::ImageViewOldGL

(

ImageViewOld &

parent

)

Definition at line 11 of file ImageViewOldGL.cc.

                                                  :
  QGLWidget(&parent),
  image_view(parent)
{
}

ImageViewOldGL::~ImageViewOldGL ( )

virtual

Definition at line 17 of file ImageViewOldGL.cc.

{
}

Member Function Documentation

void ImageViewOldGL::setAspectRatio ( bool  value )

inline

Definition at line 37 of file ImageViewOldGL.h.

{aspect_ratio = value;};

void ImageViewOldGL::setGLViewPoint	(	int	display_width = 0,
		int	display_height = 0
	)

Definition at line 34 of file ImageViewOldGL.cc.

{
  if(!display_width || !display_height)
  {
    display_width = width();
    display_height = height();
  }

  float x =1; 
  float y =1; 
 
  if (image_view.image.width() && image_view.image.height())
  {
    x = ((float)display_width)/ image_view.image.width();
    y = ((float)display_height)/ image_view.image.height();
  }

  int x_offset = 0;
  int y_offset = 0;
  if(aspect_ratio)
  {
    if(x < y)
    {
      y_offset =  -0.5f*(display_height-x*image_view.image.height());
      y = x;
    }
    else
    {
      x_offset =  0.5f*(display_width-y*image_view.image.width());
      x = y;
    }
  }
  glPixelZoom(x,-y);
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  glOrtho(0, display_width, 0, display_height, 0, 1);
  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
  glViewport(0,0, display_width, display_height);
  glRasterPos2i(x_offset,display_height+y_offset);
  
 // target.setRect(x_offset,y_offset,display_width-x_offset,display_width-y_offset);
 // source.setRect(0,0,image->width(),image->height());
}

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The documentation for this class was generated from the following files:

• /build/rock-master-18.09-gui-rock-widget-collection-0.20180124/src/image_view_old/ImageViewOldGL.h
• /build/rock-master-18.09-gui-rock-widget-collection-0.20180124/src/image_view_old/ImageViewOldGL.cc