void k2pdfopt_crop_bmp(KOPTContext *kctx) {
static char *funcname="k2pdfopt_crop_bmp";
K2PDFOPT_SETTINGS _k2settings, *k2settings;
MASTERINFO _masterinfo, *masterinfo;
WILLUSBITMAP _srcgrey, *srcgrey;
WILLUSBITMAP *src;
BMPREGION _region, *region;
int *colcount,*rowcount;
int i,j;
float margin;
src = &kctx->src;
srcgrey = &_srcgrey;
bmp_init(srcgrey);
k2settings = &_k2settings;
masterinfo = &_masterinfo;
/* Initialize settings */
k2pdfopt_settings_init_from_koptcontext(k2settings, kctx);
k2pdfopt_settings_sanity_check(k2settings);
/* Init master output structure */
masterinfo_init(masterinfo, k2settings);
bmp_init(&masterinfo->bmp);
masterinfo->bmp.width = 0;
masterinfo->bmp.height = 0;
//wrapbmp_free(&masterinfo->wrapbmp);
//wrapbmp_init(&masterinfo->wrapbmp, k2settings->dst_color);
/* Init new source bitmap */
region = &_region;
bmpregion_init(region);
masterinfo_new_source_page_init(masterinfo, k2settings, src, srcgrey, NULL,
region, k2settings->src_rot, NULL, NULL, 1, NULL);
printf("source page (%d,%d) - (%d,%d)\n",region->c1,region->r1,region->c2,region->r2);
printf("source page bgcolor %d\n", region->bgcolor);
bmpregion_trim_margins(region,k2settings,0xf);
margin = kctx->margin*k2settings->dst_dpi;
/*
* Suppose when page is zoomed to k level at fit to content width zoom mode,
* the content width is a, the device screen width is w,
* and the request margin size is m, x pixels are added as page margin.
* Then the following equations should be satisified:
* 1. k*(a + 2x) = w
* 2. 2*x*k = m
* which should be solved to x = m*a/(w-m)/2
*/
margin = margin*(region->c2 - region->c1)/(kctx->dev_width - margin)/2;
kctx->bbox.x0 = (float)region->c1 - margin;
kctx->bbox.y0 = (float)region->r1 - margin;
kctx->bbox.x1 = (float)region->c2 + margin;
kctx->bbox.y1 = (float)region->r2 + margin;
bmp_free(src);
bmp_free(srcgrey);
bmpregion_free(region);
masterinfo_free(masterinfo,k2settings);
}
void k2pdfopt_crop_bmp(KOPTContext *kctx) {
static char *funcname="k2pdfopt_crop_bmp";
K2PDFOPT_SETTINGS _k2settings, *k2settings;
MASTERINFO _masterinfo, *masterinfo;
WILLUSBITMAP _srcgrey, *srcgrey;
WILLUSBITMAP *src;
BMPREGION _region, *region;
int *colcount,*rowcount;
int i,j;
float margin;
src = &kctx->src;
srcgrey = &_srcgrey;
bmp_init(srcgrey);
k2settings = &_k2settings;
masterinfo = &_masterinfo;
/* Initialize settings */
k2pdfopt_settings_init_from_koptcontext(k2settings, kctx);
k2pdfopt_settings_sanity_check(k2settings);
/* Init master output structure */
masterinfo_init(masterinfo, k2settings);
bmp_init(&masterinfo->bmp);
masterinfo->bmp.width = 0;
masterinfo->bmp.height = 0;
//wrapbmp_free(&masterinfo->wrapbmp);
//wrapbmp_init(&masterinfo->wrapbmp, k2settings->dst_color);
/* Init new source bitmap */
region = &_region;
bmpregion_init(region);
masterinfo_new_source_page_init(masterinfo, k2settings, src, srcgrey, NULL,
region, k2settings->src_rot, NULL, NULL, 1, NULL);
printf("source page (%d,%d) - (%d,%d)\n",region->c1,region->r1,region->c2,region->r2);
printf("source page bgcolor %d\n", region->bgcolor);
bmpregion_trim_margins(region,k2settings,0xf);
margin = k2settings->dst_mar*k2settings->dst_dpi+.5;
kctx->bbox.x0 = (float)region->c1 - margin;
kctx->bbox.y0 = (float)region->r1 - margin;
kctx->bbox.x1 = (float)region->c2 + margin;
kctx->bbox.y1 = (float)region->r2 + margin;
bmp_free(src);
bmp_free(srcgrey);
bmpregion_free(region);
masterinfo_free(masterinfo,k2settings);
}
