void _cursor(const char *arg) {
#ifdef module_cursor
cursor_visible(toggle);
#else
fprintf(stderr,"[SLIDER] Module \"cursor\" not included in this build.\n");
#endif
}
void Raspi_App::draw_internal()
{
// clear framebuffer
gl::clear();
// fire user draw-callback
draw();
// draw tweakbar
if(displayTweakBar())
{
// console output
outstream_gl().draw();
}
if(cursor_visible() && (m_mouse_fd || m_touch_fd))
{
gl::draw_points_2D({current_mouse_pos}, gl::COLOR_RED, 5.f);
}
}
int render_pdf_page(int pdf, int pg, Window win, bool fixed) {
if (pg >= _pdf[pdf].npage) return 1;
cairo_t *ctx;
cairo_surface_t *s, *img;
double pdfw, pdfh, scx, scy;
int ig;
unsigned int uig, ww, wh;
/* get page size and scale to window */
PopplerPage *page = poppler_document_get_page(_pdf[pdf].doc, pg);
poppler_page_get_size(page, &pdfw, &pdfh);
XGetGeometry(dpy, win, (Window *) &ig, &ig, &ig, &ww, &wh, &uig, &uig);
scx = ww / pdfw; scy = wh / pdfh;
//if (pdf == 0) { _ww = ww; _wh = wh; }
if (fixed) { /* adjust window size for fixed aspect ratio */
scx = (scx < scy ? (scy=scx) : scy);
ww = scx * pdfw + 0.5; wh = scy * pdfh + 0.5;
XResizeWindow(dpy, win, ww, wh);
}
/* create background pixmap and render page to it */
Pixmap pix = XCreatePixmap(dpy, win, ww, wh, DefaultDepth(dpy,scr));
s = cairo_xlib_surface_create(dpy, pix, DefaultVisual(dpy,scr), ww, wh);
ctx = cairo_create(s);
cairo_surface_destroy(s);
cairo_scale(ctx, scx, scy);
cairo_set_source_rgb(ctx, 1, 1, 1);
cairo_paint(ctx);
poppler_page_render(page, ctx);
cairo_destroy(ctx);
/* if this is the fader window, fade in */
if (win == _fade_win) {
/* hide cursor for fade transitions */
#ifdef module_cursor
bool pre = cursor_visible(query);
cursor_visible(false);
#endif
/* get image, set up context, and render page */
img = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, ww, wh);
ctx = cairo_create(img);
cairo_scale(ctx, scx, scy);
cairo_set_source_rgb(ctx, 1, 1, 1);
cairo_paint(ctx);
poppler_page_render(page, ctx);
cairo_destroy(ctx);
/* get window surface, reset context to draw img to window */
s = cairo_xlib_surface_create(dpy, win, DefaultVisual(dpy,scr), ww, wh);
ctx = cairo_create(s);
cairo_surface_destroy(s);
cairo_set_source_surface(ctx, img, 0, 0); // memory leak?!
/* fade in */
for (ig = _fade_steps; ig; --ig) {
cairo_paint_with_alpha(ctx, 1 / (float) ig); // memory leak?!
//XFlush(dpy);
usleep(200);
}
/* clean up */
cairo_destroy(ctx);
cairo_surface_destroy(img);
#ifdef module_cursor
cursor_visible(pre);
#endif
}
g_object_unref(page);
/* set the pixmap to be the window background */
XSetWindowBackgroundPixmap(dpy, win, pix);
XFreePixmap(dpy, pix);
XClearWindow(dpy, win);
#ifdef module_cursor
if (pdf == 0) cursor_draw(-1, -1);
#endif
return 0;
}
