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/* $Id: glcompimage.c,v 1.4 2009/12/04 21:08:05 arif Exp $Revision: */
/* vim:set shiftwidth=4 ts=8: */
/**********************************************************
* This software is part of the graphviz package *
* http://www.graphviz.org/ *
* *
* Copyright (c) 1994-2007 AT&T Corp. *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Corp. *
* *
* Information and Software Systems Research *
* AT&T Research, Florham Park NJ *
**********************************************************/
#include "glcompimage.h"
#include "glcompfont.h"
#include "glcompset.h"
#include "glutils.h"
#include "glcomptexture.h"
#include "memory.h"
glCompImage *glCompImageNew(glCompObj * par, GLfloat x, GLfloat y)
{
glCompImage *p;
p = NEW(glCompImage);
glCompInitCommon((glCompObj *) p, par, x, y);
p->objType = glImageObj;
//typedef enum {glPanelObj,glbuttonObj,glLabelObj,glImageObj}glObjType;
p->objType = glImageObj;
p->stretch = 0;
p->pngFile = (char *) 0;
p->texture = NULL;
p->common.functions.draw = glCompImageDraw;
return p;
}
void glCompImageDelete(glCompImage * p)
{
glCompEmptyCommon(&p->common);
if (p->pngFile)
free(p->pngFile);
if (p->texture)
glCompDeleteTexture(p->texture);
free(p);
}
extern unsigned char *load_png(char *file_name, int *imageWidth,
int *imageHeight);
int glCompImageLoad(glCompImage * i, unsigned char *data, int width,
int height)
{
if (data != NULL) { /*valid image data */
glCompDeleteTexture(i->texture);
i->texture =
glCompSetAddNewTexImage(i->common.compset, width, height, data,
1);
if (i->texture) {
i->common.width = width;
i->common.height = height;
return 1;
}
}
return 0;
}
int glCompImageLoadPng(glCompImage * i, char *pngFile)
{
int imageWidth, imageHeight;
unsigned char *data;
data = load_png(pngFile, &imageWidth, &imageHeight);
return glCompImageLoad(i, data, imageWidth, imageHeight);
}
int glCompImageLoadRaw(glCompSet * s, glCompImage * i, char *rawFile)
{
int imageWidth, imageHeight;
unsigned char *data;
data = load_png(rawFile, &imageWidth, &imageHeight);
return glCompImageLoad(i, data, imageWidth, imageHeight);
}
void glCompImageDraw(void *obj)
{
glCompImage *p;
static glCompCommon ref;
// static GLfloat w,h,d;
p = (glCompImage *) obj;
ref = p->common;
glCompCalcWidget((glCompCommon *) p->common.parent, &p->common, &ref);
if (!p->common.visible)
return;
if (!p->texture)
return;
glRasterPos2f(ref.pos.x, ref.pos.y);
// glPixelZoom(2,2);
glDrawPixels(p->texture->width, p->texture->height, GL_RGBA,
GL_UNSIGNED_BYTE, p->texture->data);
/* w=ref.width;
h=ref.height;
d=(GLfloat)p->common.layer* (GLfloat)GLCOMPSET_BEVEL_DIFF;
glDisable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
glBindTexture(GL_TEXTURE_2D,p->texture->id);
glBegin(GL_QUADS);
glTexCoord2d(0.0f, 1.0f);glVertex3d(ref.pos.x,ref.pos.y,d);
glTexCoord2d(1.0f, 1.0f);glVertex3d(ref.pos.x+w,ref.pos.y,d);
glTexCoord2d(1.0f, 0.0f);glVertex3d(ref.pos.x+w,ref.pos.y+h,d);
glTexCoord2d(0.0f, 0.0f);glVertex3d(ref.pos.x,ref.pos.y+h,d);
glEnd();
glDisable(GL_TEXTURE_2D);
glEnable(GL_BLEND);*/
}
void glCompImageClick(glCompObj * o, GLfloat x, GLfloat y,
glMouseButtonType t)
{
if (o->common.callbacks.click)
o->common.callbacks.click(o, x, y, t);
}
void glCompImageDoubleClick(glCompObj * obj, GLfloat x, GLfloat y,
glMouseButtonType t)
{
/*Put your internal code here */
if (((glCompImage *) obj)->common.callbacks.doubleclick)
((glCompImage *) obj)->common.callbacks.doubleclick(obj, x, y, t);
}
void glCompImageMouseDown(glCompObj * obj, GLfloat x, GLfloat y,
glMouseButtonType t)
{
/*Put your internal code here */
if (((glCompImage *) obj)->common.callbacks.mousedown)
((glCompImage *) obj)->common.callbacks.mousedown(obj, x, y, t);
}
void glCompImageMouseIn(glCompObj * obj, GLfloat x, GLfloat y)
{
/*Put your internal code here */
if (((glCompImage *) obj)->common.callbacks.mousein)
((glCompImage *) obj)->common.callbacks.mousein(obj, x, y);
}
void glCompImageMouseOut(glCompObj * obj, GLfloat x, GLfloat y)
{
/*Put your internal code here */
if (((glCompImage *) obj)->common.callbacks.mouseout)
((glCompImage *) obj)->common.callbacks.mouseout(obj, x, y);
}
void glCompImageMouseOver(glCompObj * obj, GLfloat x, GLfloat y)
{
/*Put your internal code here */
if (((glCompImage *) obj)->common.callbacks.mouseover)
((glCompImage *) obj)->common.callbacks.mouseover(obj, x, y);
}
void glCompImageMouseUp(glCompObj * obj, GLfloat x, GLfloat y,
glMouseButtonType t)
{
/*Put your internal code here */
if (((glCompImage *) obj)->common.callbacks.mouseup)
((glCompImage *) obj)->common.callbacks.mouseup(obj, x, y, t);
}
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