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/* sxiv: thumbs.c
* Copyright (c) 2011 Bert Muennich <muennich at informatik.hu-berlin.de>
*
* 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.
*/
#include <stdlib.h>
#include <string.h>
#include <Imlib2.h>
#include "config.h"
#include "thumbs.h"
#include "util.h"
extern Imlib_Image *im_broken;
const int thumb_dim = THUMB_SIZE + 10;
void tns_init(tns_t *tns, int cnt) {
if (!tns)
return;
tns->cnt = tns->first = tns->sel = 0;
tns->thumbs = (thumb_t*) s_malloc(cnt * sizeof(thumb_t));
}
void tns_free(tns_t *tns, win_t *win) {
int i;
if (!tns)
return;
for (i = 0; i < tns->cnt; ++i)
win_free_pixmap(win, tns->thumbs[i].pm);
free(tns->thumbs);
tns->thumbs = NULL;
}
void tns_load(tns_t *tns, win_t *win, const char *filename) {
int w, h;
float z, zw, zh;
thumb_t *t;
Imlib_Image *im;
if (!tns || !win || !filename)
return;
if ((im = imlib_load_image(filename)))
imlib_context_set_image(im);
else
imlib_context_set_image(im_broken);
w = imlib_image_get_width();
h = imlib_image_get_height();
zw = (float) THUMB_SIZE / (float) w;
zh = (float) THUMB_SIZE / (float) h;
z = MIN(zw, zh);
if (!im && z > 1.0)
z = 1.0;
t = &tns->thumbs[tns->cnt++];
t->w = z * w;
t->h = z * h;
t->pm = win_create_pixmap(win, t->w, t->h);
imlib_context_set_drawable(t->pm);
imlib_render_image_part_on_drawable_at_size(0, 0, w, h,
0, 0, t->w, t->h);
imlib_free_image();
}
void tns_render(tns_t *tns, win_t *win) {
int i, cnt, x, y;
if (!tns || !win)
return;
tns->cols = MAX(1, win->w / thumb_dim);
tns->rows = MAX(1, win->h / thumb_dim);
cnt = tns->cols * tns->rows;
if (tns->first && tns->first + cnt > tns->cnt)
tns->first = MAX(0, tns->cnt - cnt);
cnt = MIN(tns->first + cnt, tns->cnt);
win_clear(win);
x = y = 5;
i = tns->first;
while (i < cnt) {
tns->thumbs[i].x = x + (THUMB_SIZE - tns->thumbs[i].w) / 2;
tns->thumbs[i].y = y + (THUMB_SIZE - tns->thumbs[i].h) / 2;
win_draw_pixmap(win, tns->thumbs[i].pm, tns->thumbs[i].x,
tns->thumbs[i].y, tns->thumbs[i].w, tns->thumbs[i].h);
if (++i % tns->cols == 0) {
x = 5;
y += thumb_dim;
} else {
x += thumb_dim;
}
}
tns_highlight(tns, win, -1);
win_draw(win);
}
void tns_highlight(tns_t *tns, win_t *win, int old) {
thumb_t *t;
if (!tns || !win)
return;
if (old >= 0 && old < tns->cnt) {
t = &tns->thumbs[old];
win_draw_rect(win, t->x - 2, t->y - 2, t->w + 4, t->h + 4, False);
}
if (tns->sel < tns->cnt) {
t = &tns->thumbs[tns->sel];
win_draw_rect(win, t->x - 2, t->y - 2, t->w + 4, t->h + 4, True);
}
}
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