/* queue a window scroll */
static void
widget_scroll_x(struct gui_window *gw, int x, bool abs)
{
struct browser_widget_s *bwidget = fbtk_get_userpw(gw->browser);
int content_width;
int width;
float scale = gw->bw->scale;
if (abs) {
bwidget->panx = x - bwidget->scrollx;
} else {
bwidget->panx += x;
}
content_width = content_get_width(gw->bw->current_content) * scale;
width = fbtk_get_width(gw->browser);
/* dont pan off the left */
if ((bwidget->scrollx + bwidget->panx) < 0)
bwidget->panx = - bwidget->scrollx;
/* do not pan off the right of the content */
if ((bwidget->scrollx + bwidget->panx) > (content_width - width))
bwidget->panx = (content_width - width) - bwidget->scrollx;
if (bwidget->panx == 0)
return;
bwidget->pan_required = true;
fbtk_request_redraw(gw->browser);
fbtk_set_scroll_position(gw->hscroll, bwidget->scrollx + bwidget->panx);
}
/* queue a window scroll */
static void
widget_scroll_y(struct gui_window *gw, int y, bool abs)
{
struct browser_widget_s *bwidget = fbtk_get_userpw(gw->browser);
int content_width, content_height;
int height;
LOG(("window scroll"));
if (abs) {
bwidget->pany = y - bwidget->scrolly;
} else {
bwidget->pany += y;
}
browser_window_get_extents(gw->bw, true,
&content_width, &content_height);
height = fbtk_get_height(gw->browser);
/* dont pan off the top */
if ((bwidget->scrolly + bwidget->pany) < 0)
bwidget->pany = -bwidget->scrolly;
/* do not pan off the bottom of the content */
if ((bwidget->scrolly + bwidget->pany) > (content_height - height))
bwidget->pany = (content_height - height) - bwidget->scrolly;
if (bwidget->pany == 0) {
return;
}
bwidget->pan_required = true;
fbtk_request_redraw(gw->browser);
fbtk_set_scroll_position(gw->vscroll, bwidget->scrolly + bwidget->pany);
}
/* queue a window scroll */
static void
widget_scroll_x(struct gui_window *gw, int x, bool abs)
{
struct browser_widget_s *bwidget = fbtk_get_userpw(gw->browser);
int content_width, content_height;
int width;
if (abs) {
bwidget->panx = x - bwidget->scrollx;
} else {
bwidget->panx += x;
}
browser_window_get_extents(gw->bw, true,
&content_width, &content_height);
width = fbtk_get_width(gw->browser);
/* dont pan off the left */
if ((bwidget->scrollx + bwidget->panx) < 0)
bwidget->panx = - bwidget->scrollx;
/* do not pan off the right of the content */
if ((bwidget->scrollx + bwidget->panx) > (content_width - width))
bwidget->panx = (content_width - width) - bwidget->scrollx;
if (bwidget->panx == 0) {
return;
}
bwidget->pan_required = true;
fbtk_request_redraw(gw->browser);
fbtk_set_scroll_position(gw->hscroll, bwidget->scrollx + bwidget->panx);
}