diff options
Diffstat (limited to 'gtk+-mingw/share/gtk-3.0/demo/printing.c')
| -rw-r--r-- | gtk+-mingw/share/gtk-3.0/demo/printing.c | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/gtk+-mingw/share/gtk-3.0/demo/printing.c b/gtk+-mingw/share/gtk-3.0/demo/printing.c deleted file mode 100644 index 59835ea..0000000 --- a/gtk+-mingw/share/gtk-3.0/demo/printing.c +++ /dev/null @@ -1,212 +0,0 @@ -/* Printing - * - * GtkPrintOperation offers a simple API to support printing - * in a cross-platform way. - * - */ - -#include <math.h> -#include <gtk/gtk.h> -#include "demo-common.h" - -/* In points */ -#define HEADER_HEIGHT (10*72/25.4) -#define HEADER_GAP (3*72/25.4) - -typedef struct -{ - gchar *filename; - gdouble font_size; - - gint lines_per_page; - gchar **lines; - gint num_lines; - gint num_pages; -} PrintData; - -static void -begin_print (GtkPrintOperation *operation, - GtkPrintContext *context, - gpointer user_data) -{ - PrintData *data = (PrintData *)user_data; - char *contents; - int i; - double height; - - height = gtk_print_context_get_height (context) - HEADER_HEIGHT - HEADER_GAP; - - data->lines_per_page = floor (height / data->font_size); - - g_file_get_contents (data->filename, &contents, NULL, NULL); - - data->lines = g_strsplit (contents, "\n", 0); - g_free (contents); - - i = 0; - while (data->lines[i] != NULL) - i++; - - data->num_lines = i; - data->num_pages = (data->num_lines - 1) / data->lines_per_page + 1; - - gtk_print_operation_set_n_pages (operation, data->num_pages); -} - -static void -draw_page (GtkPrintOperation *operation, - GtkPrintContext *context, - gint page_nr, - gpointer user_data) -{ - PrintData *data = (PrintData *)user_data; - cairo_t *cr; - PangoLayout *layout; - gint text_width, text_height; - gdouble width; - gint line, i; - PangoFontDescription *desc; - gchar *page_str; - - cr = gtk_print_context_get_cairo_context (context); - width = gtk_print_context_get_width (context); - - cairo_rectangle (cr, 0, 0, width, HEADER_HEIGHT); - - cairo_set_source_rgb (cr, 0.8, 0.8, 0.8); - cairo_fill_preserve (cr); - - cairo_set_source_rgb (cr, 0, 0, 0); - cairo_set_line_width (cr, 1); - cairo_stroke (cr); - - layout = gtk_print_context_create_pango_layout (context); - - desc = pango_font_description_from_string ("sans 14"); - pango_layout_set_font_description (layout, desc); - pango_font_description_free (desc); - - pango_layout_set_text (layout, data->filename, -1); - pango_layout_get_pixel_size (layout, &text_width, &text_height); - - if (text_width > width) - { - pango_layout_set_width (layout, width); - pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_START); - pango_layout_get_pixel_size (layout, &text_width, &text_height); - } - - cairo_move_to (cr, (width - text_width) / 2, (HEADER_HEIGHT - text_height) / 2); - pango_cairo_show_layout (cr, layout); - - page_str = g_strdup_printf ("%d/%d", page_nr + 1, data->num_pages); - pango_layout_set_text (layout, page_str, -1); - g_free (page_str); - - pango_layout_set_width (layout, -1); - pango_layout_get_pixel_size (layout, &text_width, &text_height); - cairo_move_to (cr, width - text_width - 4, (HEADER_HEIGHT - text_height) / 2); - pango_cairo_show_layout (cr, layout); - - g_object_unref (layout); - - layout = gtk_print_context_create_pango_layout (context); - - desc = pango_font_description_from_string ("monospace"); - pango_font_description_set_size (desc, data->font_size * PANGO_SCALE); - pango_layout_set_font_description (layout, desc); - pango_font_description_free (desc); - - cairo_move_to (cr, 0, HEADER_HEIGHT + HEADER_GAP); - line = page_nr * data->lines_per_page; - for (i = 0; i < data->lines_per_page && line < data->num_lines; i++) - { - pango_layout_set_text (layout, data->lines[line], -1); - pango_cairo_show_layout (cr, layout); - cairo_rel_move_to (cr, 0, data->font_size); - line++; - } - - g_object_unref (layout); -} - -static void -end_print (GtkPrintOperation *operation, - GtkPrintContext *context, - gpointer user_data) -{ - PrintData *data = (PrintData *)user_data; - - g_free (data->filename); - g_strfreev (data->lines); - g_free (data); -} - - -GtkWidget * -do_printing (GtkWidget *do_widget) -{ - GtkPrintOperation *operation; - GtkPrintSettings *settings; - PrintData *data; - gchar *uri, *ext; - const gchar *dir; - GError *error = NULL; - - operation = gtk_print_operation_new (); - data = g_new0 (PrintData, 1); - data->filename = demo_find_file ("printing.c", NULL); - data->font_size = 12.0; - - g_signal_connect (G_OBJECT (operation), "begin-print", - G_CALLBACK (begin_print), data); - g_signal_connect (G_OBJECT (operation), "draw-page", - G_CALLBACK (draw_page), data); - g_signal_connect (G_OBJECT (operation), "end-print", - G_CALLBACK (end_print), data); - - gtk_print_operation_set_use_full_page (operation, FALSE); - gtk_print_operation_set_unit (operation, GTK_UNIT_POINTS); - gtk_print_operation_set_embed_page_setup (operation, TRUE); - - settings = gtk_print_settings_new (); - dir = g_get_user_special_dir (G_USER_DIRECTORY_DOCUMENTS); - if (dir == NULL) - dir = g_get_home_dir (); - if (g_strcmp0 (gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT), "ps") == 0) - ext = ".ps"; - else if (g_strcmp0 (gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT), "svg") == 0) - ext = ".svg"; - else - ext = ".pdf"; - - uri = g_strconcat ("file://", dir, "/", "gtk-demo", ext, NULL); - gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_OUTPUT_URI, uri); - gtk_print_operation_set_print_settings (operation, settings); - - gtk_print_operation_run (operation, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, GTK_WINDOW (do_widget), &error); - - g_object_unref (operation); - g_object_unref (settings); - g_free (uri); - - if (error) - { - GtkWidget *dialog; - - dialog = gtk_message_dialog_new (GTK_WINDOW (do_widget), - GTK_DIALOG_DESTROY_WITH_PARENT, - GTK_MESSAGE_ERROR, - GTK_BUTTONS_CLOSE, - "%s", error->message); - g_error_free (error); - - g_signal_connect (dialog, "response", - G_CALLBACK (gtk_widget_destroy), NULL); - - gtk_widget_show (dialog); - } - - - return NULL; -} |