void pdfapp_onresize(pdfapp_t *app, int w, int h)
{
if (app->winw != w || app->winh != h)
{
app->winw = w;
app->winh = h;
pdfapp_panview(app, app->panx, app->pany);
winrepaint(app);
}
}
void pdfapp_onmouse(pdfapp_t *app, int x, int y, int btn, int modifiers, int state)
{
pdf_link *link;
fz_matrix ctm;
fz_point p;
p.x = x - app->panx + app->image->x;
p.y = y - app->pany + app->image->y;
ctm = pdfapp_viewctm(app);
ctm = fz_invert_matrix(ctm);
p = fz_transform_point(ctm, p);
for (link = app->page_links; link; link = link->next)
{
if (p.x >= link->rect.x0 && p.x <= link->rect.x1)
if (p.y >= link->rect.y0 && p.y <= link->rect.y1)
break;
}
if (link)
{
wincursor(app, HAND);
if (btn == 1 && state == 1)
{
if (link->kind == PDF_LINK_URI)
pdfapp_gotouri(app, link->dest);
else if (link->kind == PDF_LINK_GOTO)
pdfapp_gotopage(app, fz_array_get(link->dest, 0)); /* [ pageobj ... ] */
return;
}
}
else
{
wincursor(app, ARROW);
}
if (state == 1)
{
if (btn == 1 && !app->iscopying)
{
app->ispanning = 1;
app->selx = x;
app->sely = y;
app->beyondy = 0;
}
if (btn == 3 && !app->ispanning)
{
app->iscopying = 1;
app->selx = x;
app->sely = y;
app->selr.x0 = x;
app->selr.x1 = x;
app->selr.y0 = y;
app->selr.y1 = y;
}
if (btn == 4 || btn == 5) /* scroll wheel */
{
int dir = btn == 4 ? 1 : -1;
app->ispanning = app->iscopying = 0;
if (modifiers & (1<<2))
{
/* zoom in/out if ctrl is pressed */
if (dir > 0)
app->resolution *= ZOOMSTEP;
else
app->resolution /= ZOOMSTEP;
if (app->resolution > MAXRES)
app->resolution = MAXRES;
if (app->resolution < MINRES)
app->resolution = MINRES;
pdfapp_showpage(app, 0, 1, 1);
}
else
{
/* scroll up/down, or left/right if
shift is pressed */
int isx = (modifiers & (1<<0));
int xstep = isx ? 20 * dir : 0;
int ystep = !isx ? 20 * dir : 0;
pdfapp_panview(app, app->panx + xstep, app->pany + ystep);
}
}
}
else if (state == -1)
{
if (app->iscopying)
{
app->iscopying = 0;
app->selr.x0 = MIN(app->selx, x) - app->panx + app->image->x;
app->selr.x1 = MAX(app->selx, x) - app->panx + app->image->x;
app->selr.y0 = MIN(app->sely, y) - app->pany + app->image->y;
app->selr.y1 = MAX(app->sely, y) - app->pany + app->image->y;
winrepaint(app);
if (app->selr.x0 < app->selr.x1 && app->selr.y0 < app->selr.y1)
windocopy(app);
}
if (app->ispanning)
app->ispanning = 0;
}
else if (app->ispanning)
{
int newx = app->panx + x - app->selx;
int newy = app->pany + y - app->sely;
/* Scrolling beyond limits implies flipping pages */
/* Are we requested to scroll beyond limits? */
if (newy + app->image->h < app->winh || newy > 0)
{
/* Yes. We can assume that deltay != 0 */
int deltay = y - app->sely;
/* Check whether the panning has occured in the
* direction that we are already crossing the
* limit it. If not, we can conclude that we
* have switched ends of the page and will thus
* start over counting.
*/
if( app->beyondy == 0 || (app->beyondy ^ deltay) >= 0 )
{
/* Updating how far we are beyond and
* flipping pages if beyond threshhold
*/
app->beyondy += deltay;
if (app->beyondy > BEYOND_THRESHHOLD)
{
if( app->pageno > 1 )
{
app->pageno--;
pdfapp_showpage(app, 1, 1, 1);
newy = -app->image->h;
}
app->beyondy = 0;
}
else if (app->beyondy < -BEYOND_THRESHHOLD)
{
if( app->pageno < app->pagecount )
{
app->pageno++;
pdfapp_showpage(app, 1, 1, 1);
newy = 0;
}
app->beyondy = 0;
}
}
else
app->beyondy = 0;
}
/* Although at this point we've already determined that
* or that no scrolling will be performed in
* y-direction, the x-direction has not yet been taken
* care off. Therefore
*/
pdfapp_panview(app, newx, newy);
app->selx = x;
app->sely = y;
}
else if (app->iscopying)
{
app->selr.x0 = MIN(app->selx, x) - app->panx + app->image->x;
app->selr.x1 = MAX(app->selx, x) - app->panx + app->image->x;
app->selr.y0 = MIN(app->sely, y) - app->pany + app->image->y;
app->selr.y1 = MAX(app->sely, y) - app->pany + app->image->y;
winrepaint(app);
}
}
static void pdfapp_showpage(pdfapp_t *app, int loadpage, int drawpage, int repaint)
{
char buf[256];
fz_device *idev;
fz_device *tdev;
fz_colorspace *colorspace;
fz_matrix ctm;
fz_bbox bbox;
wincursor(app, WAIT);
if (loadpage)
{
if (app->page_list)
fz_free_display_list(app->page_list);
if (app->page_text)
fz_free_text_span(app->page_text);
if (app->page_links)
pdf_free_link(app->page_links);
if (app->xref)
pdfapp_loadpage_pdf(app);
if (app->xps)
pdfapp_loadpage_xps(app);
/* Zero search hit position */
app->hit = -1;
app->hitlen = 0;
/* Extract text */
app->page_text = fz_new_text_span();
tdev = fz_new_text_device(app->page_text);
fz_execute_display_list(app->page_list, tdev, fz_identity, fz_infinite_bbox);
fz_free_device(tdev);
}
if (drawpage)
{
sprintf(buf, "%s - %d/%d (%d dpi)", app->doctitle,
app->pageno, app->pagecount, app->resolution);
wintitle(app, buf);
ctm = pdfapp_viewctm(app);
bbox = fz_round_rect(fz_transform_rect(ctm, app->page_bbox));
/* Draw */
if (app->image)
fz_drop_pixmap(app->image);
if (app->grayscale)
colorspace = fz_device_gray;
else
#ifdef _WIN32
colorspace = fz_device_bgr;
#else
colorspace = fz_device_rgb;
#endif
app->image = fz_new_pixmap_with_rect(colorspace, bbox);
fz_clear_pixmap_with_color(app->image, 255);
idev = fz_new_draw_device(app->cache, app->image);
fz_execute_display_list(app->page_list, idev, ctm, bbox);
fz_free_device(idev);
}
if (repaint)
{
pdfapp_panview(app, app->panx, app->pany);
if (app->shrinkwrap)
{
int w = app->image->w;
int h = app->image->h;
if (app->winw == w)
app->panx = 0;
if (app->winh == h)
app->pany = 0;
if (w > app->scrw * 90 / 100)
w = app->scrw * 90 / 100;
if (h > app->scrh * 90 / 100)
h = app->scrh * 90 / 100;
if (w != app->winw || h != app->winh)
winresize(app, w, h);
}
winrepaint(app);
wincursor(app, ARROW);
}
fz_flush_warnings();
}
void pdfapp_onmouse(pdfapp_t *app, int x, int y, int btn, int modifiers, int state)
{
pdf_link *link;
fz_matrix ctm;
fz_point p;
p.x = x - app->panx + app->image->x;
p.y = y - app->pany + app->image->y;
ctm = pdfapp_viewctm(app);
ctm = fz_invertmatrix(ctm);
p = fz_transformpoint(ctm, p);
for (link = app->page->links; link; link = link->next)
{
if (p.x >= link->rect.x0 && p.x <= link->rect.x1)
if (p.y >= link->rect.y0 && p.y <= link->rect.y1)
break;
}
if (link)
{
wincursor(app, HAND);
if (btn == 1 && state == 1)
{
if (fz_isstring(link->dest))
pdfapp_gotouri(app, link->dest);
if (fz_isindirect(link->dest))
pdfapp_gotopage(app, link->dest);
return;
}
}
else
{
wincursor(app, ARROW);
}
if (state == 1)
{
if (btn == 1 && !app->iscopying)
{
app->ispanning = 1;
app->selx = x;
app->sely = y;
}
if (btn == 3 && !app->ispanning)
{
app->iscopying = 1;
app->selx = x;
app->sely = y;
app->selr.x0 = x;
app->selr.x1 = x;
app->selr.y0 = y;
app->selr.y1 = y;
}
if (btn == 4 || btn == 5) /* scroll wheel */
{
int dir = btn == 4 ? 1 : -1;
app->ispanning = app->iscopying = 0;
if (modifiers & (1<<2))
{
/* zoom in/out if ctrl is pressed */
app->zoom += 0.1 * dir;
if (app->zoom > 3.0)
app->zoom = 3.0;
if (app->zoom < 0.1)
app->zoom = 0.1;
pdfapp_showpage(app, 0, 1);
}
else
{
/* scroll up/down, or left/right if
shift is pressed */
int isx = (modifiers & (1<<0));
int xstep = isx ? 20 * dir : 0;
int ystep = !isx ? 20 * dir : 0;
pdfapp_panview(app, app->panx + xstep, app->pany + ystep);
}
}
}
else if (state == -1)
{
if (app->iscopying)
{
app->iscopying = 0;
app->selr.x0 = MIN(app->selx, x);
app->selr.x1 = MAX(app->selx, x);
app->selr.y0 = MIN(app->sely, y);
app->selr.y1 = MAX(app->sely, y);
winrepaint(app);
if (app->selr.x0 < app->selr.x1 && app->selr.y0 < app->selr.y1)
windocopy(app);
}
if (app->ispanning)
app->ispanning = 0;
}
else if (app->ispanning)
{
int newx = app->panx + x - app->selx;
int newy = app->pany + y - app->sely;
pdfapp_panview(app, newx, newy);
app->selx = x;
app->sely = y;
}
else if (app->iscopying)
{
app->selr.x0 = MIN(app->selx, x);
app->selr.x1 = MAX(app->selx, x);
app->selr.y0 = MIN(app->sely, y);
app->selr.y1 = MAX(app->sely, y);
winrepaint(app);
}
}
void pdfapp_showpage(pdfapp_t *app, int loadpage, int drawpage)
{
char buf[256];
fz_error *error;
fz_matrix ctm;
fz_rect bbox;
fz_obj *obj;
if (loadpage)
{
wincursor(app, WAIT);
if (app->page)
pdf_droppage(app->page);
app->page = nil;
obj = pdf_getpageobject(app->pages, app->pageno - 1);
error = pdf_loadpage(&app->page, app->xref, obj);
if (error)
pdfapp_error(app, error);
sprintf(buf, "%s - %d/%d", app->doctitle,
app->pageno, pdf_getpagecount(app->pages));
wintitle(app, buf);
}
if (drawpage)
{
wincursor(app, WAIT);
if (app->image)
fz_droppixmap(app->image);
app->image = nil;
ctm = pdfapp_viewctm(app);
bbox = fz_transformaabb(ctm, app->page->mediabox);
error = fz_rendertree(&app->image, app->rast, app->page->tree,
ctm, fz_roundrect(bbox), 1);
if (error)
pdfapp_error(app, error);
winconvert(app, app->image);
}
pdfapp_panview(app, app->panx, app->pany);
if (app->shrinkwrap)
{
int w = app->image->w;
int h = app->image->h;
if (app->winw == w)
app->panx = 0;
if (app->winh == h)
app->pany = 0;
if (w > app->scrw * 90 / 100)
w = app->scrw * 90 / 100;
if (h > app->scrh * 90 / 100)
h = app->scrh * 90 / 100;
if (w != app->winw || h != app->winh)
winresize(app, w, h);
}
winrepaint(app);
wincursor(app, ARROW);
}
void pdfapp_onmouse(pdfapp_t *app, int x, int y, int btn, int modifiers, int state)
{
pdf_link *link;
fz_matrix ctm;
fz_point p;
p.x = x - app->panx + app->image->x;
p.y = y - app->pany + app->image->y;
ctm = pdfapp_viewctm(app);
ctm = fz_invertmatrix(ctm);
p = fz_transformpoint(ctm, p);
for (link = app->page->links; link; link = link->next)
{
if (p.x >= link->rect.x0 && p.x <= link->rect.x1)
if (p.y >= link->rect.y0 && p.y <= link->rect.y1)
break;
}
if (link)
{
wincursor(app, HAND);
if (btn == 1 && state == 1)
{
if (link->kind == PDF_LURI)
pdfapp_gotouri(app, link->dest);
else if (link->kind == PDF_LGOTO)
pdfapp_gotopage(app, link->dest);
return;
}
}
else
{
wincursor(app, ARROW);
}
if (state == 1)
{
if (btn == 1 && !app->iscopying)
{
app->ispanning = 1;
app->selx = x;
app->sely = y;
}
if (btn == 3 && !app->ispanning)
{
kno_clearselect(app); //code change by kakai
app->iscopying = 1;
app->selx = x;
app->sely = y;
app->selr.x0 = x;
app->selr.x1 = x;
app->selr.y0 = y;
app->selr.y1 = y;
}
if (btn == 4 || btn == 5) /* scroll wheel */
{
int dir = btn == 4 ? 1 : -1;
app->ispanning = app->iscopying = 0;
if (modifiers & (1<<2))
{
/* zoom in/out if ctrl is pressed */
app->zoom += 0.1 * dir;
if (app->zoom > 3.0)
app->zoom = 3.0;
if (app->zoom < 0.1)
app->zoom = 0.1;
pdfapp_showpage(app, 0, 1);
}
else
{
/* scroll up/down, or left/right if
shift is pressed */
int isx = (modifiers & (1<<0));
int xstep = isx ? 20 * dir : 0;
int ystep = !isx ? 20 * dir : 0;
pdfapp_panview(app, app->panx + xstep, app->pany + ystep);
}
}
}
else if (state == -1)
{
//Code change by Kakai
//Hit testing
kno_hitdata *hitdata = kno_gethitdata(app, x, y);
printf("hit test char is: %c\n", hitdata->ucs);
//Code change by Kakai
if (app->iscopying)
{
app->iscopying = 0;
app->selr.x0 = MIN(app->selx, x);
app->selr.x1 = MAX(app->selx, x);
app->selr.y0 = MIN(app->sely, y);
app->selr.y1 = MAX(app->sely, y);
winrepaint(app);
if (app->selr.x0 < app->selr.x1 && app->selr.y0 < app->selr.y1)
windocopy(app);
}
if (app->ispanning)
app->ispanning = 0;
}
else if (app->ispanning)
{
int newx = app->panx + x - app->selx;
int newy = app->pany + y - app->sely;
pdfapp_panview(app, newx, newy);
app->selx = x;
app->sely = y;
}
else if (app->iscopying)
{
app->selr.x0 = MIN(app->selx, x);
app->selr.x1 = MAX(app->selx, x);
app->selr.y0 = MIN(app->sely, y);
app->selr.y1 = MAX(app->sely, y);
//code change by kakai
//IsHighlightable and selection testing
int closestx, closesty;
closestx = closesty = 0;
if (kno_ishighlightable(app, x, y, &closestx, &closesty) == 1)
kno_onselect(app); //code change by kakai
else
{
printf("x is %d\n", closestx);
printf("y is %d\n", closesty);
}
//code change by kakai
winrepaint(app);
}
}
static void pdfapp_showpage(pdfapp_t *app, int loadpage, int drawpage)
{
char buf[256];
fz_error error;
fz_device *idev, *tdev, *mdev;
fz_displaylist *list;
fz_matrix ctm;
fz_bbox bbox;
fz_obj *obj;
if (loadpage)
{
wincursor(app, WAIT);
if (app->page)
pdf_droppage(app->page);
app->page = nil;
//code change by kakai
kno_clearselect(app);
//code change by kakai
pdf_flushxref(app->xref, 0);
obj = pdf_getpageobject(app->xref, app->pageno);
error = pdf_loadpage(&app->page, app->xref, obj);
if (error)
pdfapp_error(app, error);
sprintf(buf, "%s - %d/%d", app->doctitle,
app->pageno, app->pagecount);
wintitle(app, buf);
}
if (drawpage)
{
wincursor(app, WAIT);
ctm = pdfapp_viewctm(app);
bbox = fz_roundrect(fz_transformrect(ctm, app->page->mediabox));
list = fz_newdisplaylist();
mdev = fz_newlistdevice(list);
error = pdf_runcontentstream(mdev, fz_identity(), app->xref, app->page->resources, app->page->contents);
if (error)
pdfapp_error(app, error);
fz_freedevice(mdev);
if (app->image)
fz_droppixmap(app->image);
app->image = fz_newpixmapwithrect(pdf_devicergb, bbox);
fz_clearpixmap(app->image, 0xFF);
idev = fz_newdrawdevice(app->cache, app->image);
fz_executedisplaylist(list, idev, ctm);
fz_freedevice(idev);
if (app->text)
fz_freetextspan(app->text);
app->text = fz_newtextspan();
tdev = fz_newtextdevice(app->text);
fz_executedisplaylist(list, tdev, ctm);
fz_freedevice(tdev);
fz_freedisplaylist(list);
//code change by kakai
kno_allocselection(app);
kno_applyselect(app);
//code change by kakai
winconvert(app, app->image);
}
pdfapp_panview(app, app->panx, app->pany);
if (app->shrinkwrap)
{
int w = app->image->w;
int h = app->image->h;
if (app->winw == w)
app->panx = 0;
if (app->winh == h)
app->pany = 0;
if (w > app->scrw * 90 / 100)
w = app->scrw * 90 / 100;
if (h > app->scrh * 90 / 100)
h = app->scrh * 90 / 100;
if (w != app->winw || h != app->winh)
winresize(app, w, h);
}
winrepaint(app);
wincursor(app, ARROW);
}