mirror of
git://projects.qi-hardware.com/ben-scans.git
synced 2024-11-22 09:16:15 +02:00
140 lines
2.7 KiB
C
140 lines
2.7 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <gtk/gtk.h>
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#include "array.h"
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#include "face.h"
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#include "level.h"
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static void draw_map(GtkWidget *widget, struct face *f)
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{
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int x, y, z;
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guchar *rgbbuf, *p;
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rgbbuf = p = calloc(f->sx*f->sy, 3);
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if (!rgbbuf) {
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perror("calloc");
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exit(1);
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}
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for (y = f->sy-1; y >= 0; y--)
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for (x = 0; x != f->sx ; x++) {
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z = get(f->a, x+f->a->min_x, y+f->a->min_y);
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if (z == UNDEF) {
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p += 3;
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continue;
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}
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if (z == f->z_ref) {
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*p++ = 0;
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*p++ = 0;
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*p++ = 255;
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continue;
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}
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if (z < f->z_ref) {
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z = 255.0*(z-f->z_ref)/(f->z_ref-f->a->min_z);
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*p++ = 255;
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*p++ = z;
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*p++ = z;
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} else {
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z = 255.0*(f->z_ref-z)/(f->a->max_z-f->z_ref);
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*p++ = z;
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*p++ = 255;
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*p++ = z;
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}
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}
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gdk_draw_rgb_image(widget->window,
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widget->style->fg_gc[GTK_STATE_NORMAL],
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0, 0, f->sx, f->sy, GDK_RGB_DITHER_MAX, rgbbuf, f->sx*3);
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free(rgbbuf);
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}
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static void draw_image(GtkWidget *da, struct face *f)
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{
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fprintf(stderr, "%d\n", f->z_ref);
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draw_map(da, f);
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}
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static gboolean scroll_event(GtkWidget *widget, GdkEventScroll *event,
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gpointer data)
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{
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GtkWidget *da = gtk_bin_get_child(GTK_BIN(widget));
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struct face *f = data;
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switch (event->direction) {
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case GDK_SCROLL_UP:
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if (f->z_ref > f->a->min_z) {
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f->z_ref--;
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draw_image(da, f);
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}
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break;
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case GDK_SCROLL_DOWN:
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if (f->z_ref < f->a->max_z) {
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f->z_ref++;
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draw_image(da, f);
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}
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break;
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default:
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/* ignore */;
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}
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return TRUE;
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}
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static gboolean expose_event(GtkWidget *widget, GdkEventExpose *event,
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gpointer user_data)
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{
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draw_image(widget, user_data);
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return TRUE;
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}
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static gboolean key_press_event(GtkWidget *widget, GdkEventKey *event,
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gpointer data)
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{
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if (event->keyval == 'q')
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gtk_main_quit();
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return TRUE;
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}
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static void make_screen(GtkWidget *root, struct face *f)
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{
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GtkWidget *evbox, *da;
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da = gtk_drawing_area_new();
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gtk_widget_set_size_request(da, f->sx, f->sy);
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evbox = gtk_event_box_new();
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gtk_container_add(GTK_CONTAINER(evbox), da);
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gtk_container_add(GTK_CONTAINER(root), evbox);
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gtk_widget_show_all(root);
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draw_map(da, f);
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g_signal_connect(G_OBJECT(evbox), "scroll-event",
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G_CALLBACK(scroll_event), f);
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g_signal_connect(G_OBJECT(da), "expose-event",
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G_CALLBACK(expose_event), f);
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g_signal_connect(G_OBJECT(root), "key-press-event",
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G_CALLBACK(key_press_event), NULL);
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}
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void level(struct face *f)
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{
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GtkWidget *root;
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root = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_window_set_position(GTK_WINDOW(root), GTK_WIN_POS_CENTER);
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#if 0
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/* get root->window */
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gtk_widget_show_all(root);
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#endif
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g_signal_connect(G_OBJECT(root), "destroy",
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G_CALLBACK(gtk_main_quit), NULL);
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make_screen(root, f);
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gtk_main();
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}
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