zathura/print.c
2011-05-02 18:50:24 +02:00

81 lines
2.6 KiB
C

#include "print.h"
#include "document.h"
void
print(zathura_t* zathura)
{
g_return_if_fail(zathura != NULL);
g_return_if_fail(zathura->document != NULL);
GtkPrintOperation* print_operation = gtk_print_operation_new();
/* print operation settings */
if (zathura->print.settings != NULL) {
gtk_print_operation_set_print_settings(print_operation, zathura->print.settings);
}
if (zathura->print.page_setup != NULL) {
gtk_print_operation_set_default_page_setup(print_operation, zathura->print.page_setup);
}
gtk_print_operation_set_allow_async(print_operation, TRUE);
gtk_print_operation_set_n_pages(print_operation, zathura->document->number_of_pages);
gtk_print_operation_set_current_page(print_operation, zathura->document->current_page_number);
/* print operation signals */
g_signal_connect(print_operation, "draw-page", G_CALLBACK(cb_print_draw_page), zathura);
/* print */
GtkPrintOperationResult result = gtk_print_operation_run(print_operation,
GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, NULL, NULL);
if (result == GTK_PRINT_OPERATION_RESULT_APPLY) {
/* save previous settings */
zathura->print.settings = gtk_print_operation_get_print_settings(print_operation);
zathura->print.page_setup = gtk_print_operation_get_default_page_setup(print_operation);
} else if (result == GTK_PRINT_OPERATION_RESULT_ERROR) {
girara_error("Error occured while printing progress");
}
g_object_unref(print_operation);
}
void
cb_print_begin(GtkPrintOperation* print_operation, GtkPrintContext* context, zathura_t* zathura)
{
}
void
cb_print_draw_page(GtkPrintOperation* print_operation, GtkPrintContext* context, gint page_number, zathura_t* zathura)
{
cairo_t* cairo = gtk_print_context_get_cairo_context(context);
girara_info("Printing page %d", page_number);
zathura_page_t* page = zathura->document->pages[page_number];
double requested_with = gtk_print_context_get_width(context);
double tmp_scale = zathura->document->scale;
zathura->document->scale = requested_with / page->width;
g_static_mutex_lock(&(page->lock));
zathura_image_buffer_t* image_buffer = zathura_page_render(page);
g_static_mutex_unlock(&(page->lock));
for (unsigned int y = 0; y < image_buffer->height; y++) {
unsigned char* src = image_buffer->data + y * image_buffer->rowstride;
for (unsigned int x = 0; x < image_buffer->width; x++) {
if (src[0] != 255 && src[1] != 255 && src[2] != 255) {
cairo_set_source_rgb(cairo, src[0], src[1], src[2]);
cairo_rectangle(cairo, x, y, 1, 1);
cairo_fill(cairo);
}
src += 3;
}
}
zathura->document->scale = tmp_scale;
}