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/*
Copyright (C) 2000 Paul Wilkins
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* draw_image.c by Paul Wilkins 1/2/2000 */
#include <stdio.h>
#include <math.h>
#include <gtk/gtk.h>
#include <gdk_imlib.h>
#include "globals.h"
#include "render_image.h"
#include "read_db.h"
#include "draw_image.h"
int check_options(struct IMAGE_OPTIONS *im_opt){
int ret = 1;
if(im_opt->opt_alg == PIX_SIZE) {
if(im_opt->pixW < 1){
printf("Image size X: invalid number\n");
ret = 0;
}
if(im_opt->pixH < 1){
printf("Image size Y: invalid number\n");
ret = 0;
}
} else {
if(im_opt->nPixW < 1){
printf("Image count X: invalid number\n");
ret = 0;
}
if(im_opt->nPixH < 1){
printf("Image count Y: invalid number\n");
ret = 0;
}
}
if(-1 == im_opt->proximity){
printf("Image proximity: invalid number\n");
ret = 0;
}
return ret;
}
int calc_dimensions(struct IMAGE_OPTIONS *im_opt){
if(0 == check_options(im_opt)){
printf("error with options\n");
return 0;
}
if(im_opt->opt_alg == PIX_SIZE) {
if(globals.in_im == NULL){
im_opt->nPixW = 0;
im_opt->nPixH = 0;
} else {
im_opt->nPixW = ceil((double)globals.in_im->rgb_width / (double)im_opt->pixW);
im_opt->nPixH = ceil((double)globals.in_im->rgb_height / (double)im_opt->pixH);
}
} else if (im_opt->opt_alg == PIX_COUNT) {
if(globals.in_im == NULL){
im_opt->pixW = 0;
im_opt->pixH = 0;
} else {
im_opt->pixW = ceil((double)globals.in_im->rgb_width / (double)im_opt->nPixW);
im_opt->pixH = ceil((double)globals.in_im->rgb_height / (double)im_opt->nPixH);
}
} else {
fprintf(stderr, "calc_dimensions: I shouldn't get here.\n");
exit(1);
}
im_opt->width = im_opt->nPixW * im_opt->pixW;
im_opt->height = im_opt->nPixH * im_opt->pixH;
return 1;
}
int copy_opt_data(){
int ret = 0;
if(globals.cur_opt.width != globals.new_opt.width) ret = 1;
if(globals.cur_opt.height != globals.new_opt.height) ret = 1;
globals.cur_opt.pixW = globals.new_opt.pixW;
globals.cur_opt.pixH = globals.new_opt.pixH;
globals.cur_opt.nPixW = globals.new_opt.nPixW;
globals.cur_opt.nPixH = globals.new_opt.nPixH;
globals.cur_opt.width = globals.new_opt.width;
globals.cur_opt.height = globals.new_opt.height;
globals.cur_opt.opt_alg = globals.new_opt.opt_alg;
globals.cur_opt.proximity = globals.new_opt.proximity;
return ret;
}
void redraw_screen(int x, int y, int w, int h){
GtkStyle *style;
/* if we have opened or rendered an image */
if(globals.in_im != NULL){
/* we may need to create the pixmap it */
if(globals.pixmap == NULL){
/* has the picture been rendered yet? */
if(globals.image){
render_image_pixmap(globals.out_im);
} else {
render_image_pixmap(globals.in_im);
}
}
/* copy it to the screen */
style = gtk_widget_get_style(GTK_WIDGET(globals.picDA));
gdk_draw_pixmap(GTK_WIDGET(globals.picDA)->window,
style->fg_gc[GTK_WIDGET_STATE(GTK_WIDGET(globals.picDA))],
globals.pixmap,
x, y, x, y, w, h);
}
}
void render_image_pixmap(GdkImlibImage *im){
/* Render the original 24-bit Image data into a pixmap of size w * h */
gdk_imlib_render(im,
globals.cur_opt.width, globals.cur_opt.height);
if(globals.pixmap != NULL){
gdk_imlib_free_pixmap(globals.pixmap);
}
/* Extract the Image and mask pixmaps from the Image */
globals.pixmap = gdk_imlib_move_image(im);
}
int draw_big_image(GdkImlibImage *im){
render_image_pixmap(im);
gdk_draw_pixmap(globals.picDA->window,
globals.picDA->style->fg_gc[GTK_WIDGET_STATE(globals.picDA)],
globals.pixmap,
0, 0,
0, 0,
globals.cur_opt.width, globals.cur_opt.height);
return 1;
}
int change_small_image(int xx, int yy){
struct PIC_DB *db;
struct IMAGE_INFO *inf;
GdkImlibImage *im;
GdkImlibImage *scale_im;
if(globals.image != NULL){
inf = &(globals.image[yy][xx]);
db = inf->matches[inf->match_no];
/* load the image */
if(NULL == (im=gdk_imlib_load_image(db->fname))){
fprintf(stderr, "Error: Unable to open %s\n", db->fname);
return 0;
}
/* scale the image */
if(NULL == (scale_im=gdk_imlib_clone_scaled_image(im,
globals.cur_opt.pixW, globals.cur_opt.pixH))){
fprintf(stderr, "Error: Unable to scale image %s\n", db->fname);
return 0;
}
draw_small_image(scale_im, xx, yy);
copy_image_RGB(scale_im->rgb_data, globals.out_im->rgb_data, xx, yy);
/* tell imlib we messed with the RGB data */
gdk_imlib_changed_image(globals.out_im);
/* this is no longer valid */
if(globals.pixmap != NULL){
gdk_imlib_free_pixmap(globals.pixmap);
}
globals.pixmap = NULL;
/* free the images we are done with */
gdk_imlib_destroy_image(im);
gdk_imlib_destroy_image(scale_im);
}
return 1;
}
int draw_small_image(GdkImlibImage *scale_im, int x, int y){
gdk_imlib_paste_image(scale_im,
globals.picDA->window,
globals.cur_opt.pixW * x,
globals.cur_opt.pixH * y,
globals.cur_opt.pixW,
globals.cur_opt.pixH);
return 1;
}
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