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a4e1d0164998a32e86b3c241a3047ef0ba3ce228
gtk3/tests/print-editor.c
Emmanuele Bassi ad78daaf80 gdk: Deprecate gdk_cairo_create() 
We have GdkDrawingContext, now, which is in charge of creating Cairo
contexts for drawing on a GdkWindow.

https://bugzilla.gnome.org/show_bug.cgi?id=766675
2016-06-09 17:45:40 +01:00

1014 lines
27 KiB
C
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#include <math.h>
#include <pango/pangocairo.h>
#include <gtk/gtk.h>
static GtkWidget *main_window;
static char *filename = NULL;
static GtkPageSetup *page_setup = NULL;
static GtkPrintSettings *settings = NULL;
static gboolean file_changed = FALSE;
static GtkTextBuffer *buffer;
static GtkWidget *statusbar;
static GList *active_prints = NULL;
static void
update_title (GtkWindow *window)
{
char *basename;
char *title;
if (filename == NULL)
basename = g_strdup ("Untitled");
else
basename = g_path_get_basename (filename);
title = g_strdup_printf ("Simple Editor with printing - %s", basename);
g_free (basename);
gtk_window_set_title (window, title);
g_free (title);
}
static void
update_statusbar (void)
{
gchar *msg;
gint row, col;
GtkTextIter iter;
const char *print_str;
gtk_statusbar_pop (GTK_STATUSBAR (statusbar), 0);
gtk_text_buffer_get_iter_at_mark (buffer,
&iter,
gtk_text_buffer_get_insert (buffer));
row = gtk_text_iter_get_line (&iter);
col = gtk_text_iter_get_line_offset (&iter);
print_str = "";
if (active_prints)
{
GtkPrintOperation *op = active_prints->data;
print_str = gtk_print_operation_get_status_string (op);
}
msg = g_strdup_printf ("%d, %d%s %s",
row, col,
file_changed?" - Modified":"",
print_str);
gtk_statusbar_push (GTK_STATUSBAR (statusbar), 0, msg);
g_free (msg);
}
static void
update_ui (void)
{
update_title (GTK_WINDOW (main_window));
update_statusbar ();
}
static char *
get_text (void)
{
GtkTextIter start, end;
gtk_text_buffer_get_start_iter (buffer, &start);
gtk_text_buffer_get_end_iter (buffer, &end);
return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
}
static void
set_text (const char *text, gsize len)
{
gtk_text_buffer_set_text (buffer, text, len);
file_changed = FALSE;
update_ui ();
}
static void
load_file (const char *open_filename)
{
GtkWidget *error_dialog;
char *contents;
GError *error;
gsize len;
error_dialog = NULL;
error = NULL;
if (g_file_get_contents (open_filename, &contents, &len, &error))
{
if (g_utf8_validate (contents, len, NULL))
{
filename = g_strdup (open_filename);
set_text (contents, len);
g_free (contents);
}
else
{
error_dialog = gtk_message_dialog_new (GTK_WINDOW (main_window),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"Error loading file %s:\n%s",
open_filename,
"Not valid utf8");
}
}
else
{
error_dialog = gtk_message_dialog_new (GTK_WINDOW (main_window),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"Error loading file %s:\n%s",
open_filename,
error->message);
g_error_free (error);
}
if (error_dialog)
{
g_signal_connect (error_dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL);
gtk_widget_show (error_dialog);
}
}
static void
save_file (const char *save_filename)
{
char *text = get_text ();
GtkWidget *error_dialog;
GError *error;
error = NULL;
if (g_file_set_contents (save_filename,
text, -1, &error))
{
if (save_filename != filename)
{
g_free (filename);
filename = g_strdup (save_filename);
}
file_changed = FALSE;
update_ui ();
}
else
{
error_dialog = gtk_message_dialog_new (GTK_WINDOW (main_window),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"Error saving to file %s:\n%s",
filename,
error->message);
g_signal_connect (error_dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL);
gtk_widget_show (error_dialog);
g_error_free (error);
}
}
typedef struct {
char *text;
PangoLayout *layout;
GList *page_breaks;
GtkWidget *font_button;
char *font;
} PrintData;
static void
begin_print (GtkPrintOperation *operation,
GtkPrintContext *context,
PrintData *print_data)
{
PangoFontDescription *desc;
PangoLayoutLine *layout_line;
double width, height;
double page_height;
GList *page_breaks;
int num_lines;
int line;
width = gtk_print_context_get_width (context);
height = gtk_print_context_get_height (context);
print_data->layout = gtk_print_context_create_pango_layout (context);
desc = pango_font_description_from_string (print_data->font);
pango_layout_set_font_description (print_data->layout, desc);
pango_font_description_free (desc);
pango_layout_set_width (print_data->layout, width * PANGO_SCALE);
pango_layout_set_text (print_data->layout, print_data->text, -1);
num_lines = pango_layout_get_line_count (print_data->layout);
page_breaks = NULL;
page_height = 0;
for (line = 0; line < num_lines; line++)
{
PangoRectangle ink_rect, logical_rect;
double line_height;
layout_line = pango_layout_get_line (print_data->layout, line);
pango_layout_line_get_extents (layout_line, &ink_rect, &logical_rect);
line_height = logical_rect.height / 1024.0;
if (page_height + line_height > height)
{
page_breaks = g_list_prepend (page_breaks, GINT_TO_POINTER (line));
page_height = 0;
}
page_height += line_height;
}
page_breaks = g_list_reverse (page_breaks);
gtk_print_operation_set_n_pages (operation, g_list_length (page_breaks) + 1);
print_data->page_breaks = page_breaks;
}
static void
draw_page (GtkPrintOperation *operation,
GtkPrintContext *context,
int page_nr,
PrintData *print_data)
{
cairo_t *cr;
GList *pagebreak;
int start, end, i;
PangoLayoutIter *iter;
double start_pos;
if (page_nr == 0)
start = 0;
else
{
pagebreak = g_list_nth (print_data->page_breaks, page_nr - 1);
start = GPOINTER_TO_INT (pagebreak->data);
}
pagebreak = g_list_nth (print_data->page_breaks, page_nr);
if (pagebreak == NULL)
end = pango_layout_get_line_count (print_data->layout);
else
end = GPOINTER_TO_INT (pagebreak->data);
cr = gtk_print_context_get_cairo_context (context);
cairo_set_source_rgb (cr, 0, 0, 0);
i = 0;
start_pos = 0;
iter = pango_layout_get_iter (print_data->layout);
do
{
PangoRectangle logical_rect;
PangoLayoutLine *line;
int baseline;
if (i >= start)
{
line = pango_layout_iter_get_line (iter);
pango_layout_iter_get_line_extents (iter, NULL, &logical_rect);
baseline = pango_layout_iter_get_baseline (iter);
if (i == start)
start_pos = logical_rect.y / 1024.0;
cairo_move_to (cr, logical_rect.x / 1024.0, baseline / 1024.0 - start_pos);
pango_cairo_show_layout_line (cr, line);
}
i++;
}
while (i < end &&
pango_layout_iter_next_line (iter));
pango_layout_iter_free (iter);
}
static void
status_changed_cb (GtkPrintOperation *op,
gpointer user_data)
{
if (gtk_print_operation_is_finished (op))
{
active_prints = g_list_remove (active_prints, op);
g_object_unref (op);
}
update_statusbar ();
}
static GtkWidget *
create_custom_widget (GtkPrintOperation *operation,
PrintData *data)
{
GtkWidget *vbox, *hbox, *font, *label;
gtk_print_operation_set_custom_tab_label (operation, "Other");
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new ("Font:");
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
font = gtk_font_button_new_with_font (data->font);
gtk_box_pack_start (GTK_BOX (hbox), font, FALSE, FALSE, 0);
gtk_widget_show (font);
data->font_button = font;
return vbox;
}
static void
custom_widget_apply (GtkPrintOperation *operation,
GtkWidget *widget,
PrintData *data)
{
const char *selected_font;
selected_font = gtk_font_button_get_font_name (GTK_FONT_BUTTON (data->font_button));
g_free (data->font);
data->font = g_strdup (selected_font);
}
typedef struct
{
GtkPrintOperation *op;
GtkPrintOperationPreview *preview;
GtkPrintContext *context;
GtkWidget *spin;
GtkWidget *area;
gint page;
PrintData *data;
gdouble dpi_x, dpi_y;
} PreviewOp;
static gboolean
preview_draw (GtkWidget *widget,
cairo_t *cr,
gpointer data)
{
PreviewOp *pop = data;
cairo_t *prev_cr;
double dpi_x, dpi_y;
prev_cr = gtk_print_context_get_cairo_context (pop->context);
cairo_reference (prev_cr);
dpi_x = gtk_print_context_get_dpi_x (pop->context);
dpi_y = gtk_print_context_get_dpi_y (pop->context);
gtk_print_context_set_cairo_context (pop->context,
cr, dpi_x, dpi_y);
gtk_print_operation_preview_render_page (pop->preview,
pop->page - 1);
gtk_print_context_set_cairo_context (pop->context,
prev_cr, dpi_x, dpi_y);
cairo_destroy (prev_cr);
return TRUE;
}
static void
preview_ready (GtkPrintOperationPreview *preview,
GtkPrintContext *context,
gpointer data)
{
PreviewOp *pop = data;
gint n_pages;
g_object_get (pop->op, "n-pages", &n_pages, NULL);
gtk_spin_button_set_range (GTK_SPIN_BUTTON (pop->spin),
1.0, n_pages);
g_signal_connect (pop->area, "draw",
G_CALLBACK (preview_draw),
pop);
gtk_widget_queue_draw (pop->area);
}
static void
preview_got_page_size (GtkPrintOperationPreview *preview,
GtkPrintContext *context,
GtkPageSetup *page_setup,
gpointer data)
{
PreviewOp *pop = data;
GtkAllocation allocation;
GtkPaperSize *paper_size;
double w, h;
cairo_t *cr;
gdouble dpi_x, dpi_y;
paper_size = gtk_page_setup_get_paper_size (page_setup);
w = gtk_paper_size_get_width (paper_size, GTK_UNIT_INCH);
h = gtk_paper_size_get_height (paper_size, GTK_UNIT_INCH);
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
cr = gdk_cairo_create (gtk_widget_get_window (pop->area));
G_GNUC_END_IGNORE_DEPRECATIONS
gtk_widget_get_allocation (pop->area, &allocation);
dpi_x = allocation.width/w;
dpi_y = allocation.height/h;
if (fabs (dpi_x - pop->dpi_x) > 0.001 ||
fabs (dpi_y - pop->dpi_y) > 0.001)
{
gtk_print_context_set_cairo_context (context, cr, dpi_x, dpi_y);
pop->dpi_x = dpi_x;
pop->dpi_y = dpi_y;
}
pango_cairo_update_layout (cr, pop->data->layout);
cairo_destroy (cr);
}
static void
update_page (GtkSpinButton *widget,
gpointer data)
{
PreviewOp *pop = data;
pop->page = gtk_spin_button_get_value_as_int (widget);
gtk_widget_queue_draw (pop->area);
}
static void
preview_destroy (GtkWindow *window,
PreviewOp *pop)
{
gtk_print_operation_preview_end_preview (pop->preview);
g_object_unref (pop->op);
g_free (pop);
}
static gboolean
preview_cb (GtkPrintOperation *op,
GtkPrintOperationPreview *preview,
GtkPrintContext *context,
GtkWindow *parent,
gpointer data)
{
GtkWidget *window, *close, *page, *hbox, *vbox, *da;
gdouble width, height;
cairo_t *cr;
PreviewOp *pop;
PrintData *print_data = data;
pop = g_new0 (PreviewOp, 1);
pop->data = print_data;
width = 200;
height = 300;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_transient_for (GTK_WINDOW (window),
GTK_WINDOW (main_window));
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox,
FALSE, FALSE, 0);
page = gtk_spin_button_new_with_range (1, 100, 1);
gtk_box_pack_start (GTK_BOX (hbox), page, FALSE, FALSE, 0);
close = gtk_button_new_with_label ("Close");
gtk_box_pack_start (GTK_BOX (hbox), close, FALSE, FALSE, 0);
da = gtk_drawing_area_new ();
gtk_widget_set_size_request (GTK_WIDGET (da), width, height);
gtk_box_pack_start (GTK_BOX (vbox), da, TRUE, TRUE, 0);
gtk_widget_realize (da);
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
cr = gdk_cairo_create (gtk_widget_get_window (da));
G_GNUC_END_IGNORE_DEPRECATIONS
/* TODO: What dpi to use here? This will be used for pagination.. */
gtk_print_context_set_cairo_context (context, cr, 72, 72);
cairo_destroy (cr);
pop->op = g_object_ref (op);
pop->preview = preview;
pop->context = context;
pop->spin = page;
pop->area = da;
pop->page = 1;
g_signal_connect (page, "value-changed",
G_CALLBACK (update_page), pop);
g_signal_connect_swapped (close, "clicked",
G_CALLBACK (gtk_widget_destroy), window);
g_signal_connect (preview, "ready",
G_CALLBACK (preview_ready), pop);
g_signal_connect (preview, "got-page-size",
G_CALLBACK (preview_got_page_size), pop);
g_signal_connect (window, "destroy",
G_CALLBACK (preview_destroy), pop);
gtk_widget_show_all (window);
return TRUE;
}
static void
print_done (GtkPrintOperation *op,
GtkPrintOperationResult res,
PrintData *print_data)
{
GError *error = NULL;
if (res == GTK_PRINT_OPERATION_RESULT_ERROR)
{
GtkWidget *error_dialog;
gtk_print_operation_get_error (op, &error);
error_dialog = gtk_message_dialog_new (GTK_WINDOW (main_window),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"Error printing file:\n%s",
error ? error->message : "no details");
g_signal_connect (error_dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL);
gtk_widget_show (error_dialog);
}
else if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
{
if (settings != NULL)
g_object_unref (settings);
settings = g_object_ref (gtk_print_operation_get_print_settings (op));
}
g_free (print_data->text);
g_free (print_data->font);
g_free (print_data);
if (!gtk_print_operation_is_finished (op))
{
g_object_ref (op);
active_prints = g_list_append (active_prints, op);
update_statusbar ();
/* This ref is unref:ed when we get the final state change */
g_signal_connect (op, "status_changed",
G_CALLBACK (status_changed_cb), NULL);
}
}
static void
end_print (GtkPrintOperation *op, GtkPrintContext *context, PrintData *print_data)
{
g_list_free (print_data->page_breaks);
print_data->page_breaks = NULL;
g_object_unref (print_data->layout);
print_data->layout = NULL;
}
static void
print_or_preview (GSimpleAction *action, GtkPrintOperationAction print_action)
{
GtkPrintOperation *print;
PrintData *print_data;
print_data = g_new0 (PrintData, 1);
print_data->text = get_text ();
print_data->font = g_strdup ("Sans 12");
print = gtk_print_operation_new ();
gtk_print_operation_set_track_print_status (print, TRUE);
if (settings != NULL)
gtk_print_operation_set_print_settings (print, settings);
if (page_setup != NULL)
gtk_print_operation_set_default_page_setup (print, page_setup);
g_signal_connect (print, "begin_print", G_CALLBACK (begin_print), print_data);
g_signal_connect (print, "end-print", G_CALLBACK (end_print), print_data);
g_signal_connect (print, "draw_page", G_CALLBACK (draw_page), print_data);
g_signal_connect (print, "create_custom_widget", G_CALLBACK (create_custom_widget), print_data);
g_signal_connect (print, "custom_widget_apply", G_CALLBACK (custom_widget_apply), print_data);
g_signal_connect (print, "preview", G_CALLBACK (preview_cb), print_data);
g_signal_connect (print, "done", G_CALLBACK (print_done), print_data);
gtk_print_operation_set_export_filename (print, "test.pdf");
#if 0
gtk_print_operation_set_allow_async (print, TRUE);
#endif
gtk_print_operation_run (print, print_action, GTK_WINDOW (main_window), NULL);
g_object_unref (print);
}
static void
activate_page_setup (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkPageSetup *new_page_setup;
new_page_setup = gtk_print_run_page_setup_dialog (GTK_WINDOW (main_window),
page_setup, settings);
if (page_setup)
g_object_unref (page_setup);
page_setup = new_page_setup;
}
static void
activate_print (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
print_or_preview (action, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG);
}
static void
activate_preview (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
print_or_preview (action, GTK_PRINT_OPERATION_ACTION_PREVIEW);
}
static void
activate_save_as (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkWidget *dialog;
gint response;
char *save_filename;
dialog = gtk_file_chooser_dialog_new ("Select file",
GTK_WINDOW (main_window),
GTK_FILE_CHOOSER_ACTION_SAVE,
"_Cancel", GTK_RESPONSE_CANCEL,
"_Save", GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
response = gtk_dialog_run (GTK_DIALOG (dialog));
if (response == GTK_RESPONSE_OK)
{
save_filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
save_file (save_filename);
g_free (save_filename);
}
gtk_widget_destroy (dialog);
}
static void
activate_save (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
if (filename == NULL)
activate_save_as (action, NULL, NULL);
else
save_file (filename);
}
static void
activate_open (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkWidget *dialog;
gint response;
char *open_filename;
dialog = gtk_file_chooser_dialog_new ("Select file",
GTK_WINDOW (main_window),
GTK_FILE_CHOOSER_ACTION_OPEN,
"_Cancel", GTK_RESPONSE_CANCEL,
"_Open", GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
response = gtk_dialog_run (GTK_DIALOG (dialog));
if (response == GTK_RESPONSE_OK)
{
open_filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
load_file (open_filename);
g_free (open_filename);
}
gtk_widget_destroy (dialog);
}
static void
activate_new (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
g_free (filename);
filename = NULL;
set_text ("", 0);
}
static void
activate_about (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
const gchar *authors[] = {
"Alexander Larsson",
NULL
};
gtk_show_about_dialog (GTK_WINDOW (main_window),
"name", "Print Test Editor",
"logo-icon-name", "text-editor",
"version", "0.1",
"copyright", "(C) Red Hat, Inc",
"comments", "Program to demonstrate GTK+ printing.",
"authors", authors,
NULL);
}
static void
activate_quit (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkApplication *app = user_data;
GtkWidget *win;
GList *list, *next;
list = gtk_application_get_windows (app);
while (list)
{
win = list->data;
next = list->next;
gtk_widget_destroy (GTK_WIDGET (win));
list = next;
}
}
static GActionEntry app_entries[] = {
{ "new", activate_new, NULL, NULL, NULL },
{ "open", activate_open, NULL, NULL, NULL },
{ "save", activate_save, NULL, NULL, NULL },
{ "save-as", activate_save_as, NULL, NULL, NULL },
{ "quit", activate_quit, NULL, NULL, NULL },
{ "about", activate_about, NULL, NULL, NULL },
{ "page-setup", activate_page_setup, NULL, NULL, NULL },
{ "preview", activate_preview, NULL, NULL, NULL },
{ "print", activate_print, NULL, NULL, NULL }
};
static const gchar ui_info[] =
"<interface>"
" <menu id='appmenu'>"
" <section>"
" <item>"
" <attribute name='label'>_About</attribute>"
" <attribute name='action'>app.about</attribute>"
" <attribute name='accel'>&lt;Primary&gt;a</attribute>"
" </item>"
" </section>"
" <section>"
" <item>"
" <attribute name='label'>_Quit</attribute>"
" <attribute name='action'>app.quit</attribute>"
" <attribute name='accel'>&lt;Primary&gt;q</attribute>"
" </item>"
" </section>"
" </menu>"
" <menu id='menubar'>"
" <submenu>"
" <attribute name='label'>_File</attribute>"
" <section>"
" <item>"
" <attribute name='label'>_New</attribute>"
" <attribute name='action'>app.new</attribute>"
" <attribute name='accel'>&lt;Primary&gt;n</attribute>"
" </item>"
" <item>"
" <attribute name='label'>_Open</attribute>"
" <attribute name='action'>app.open</attribute>"
" </item>"
" <item>"
" <attribute name='label'>_Save</attribute>"
" <attribute name='action'>app.save</attribute>"
" <attribute name='accel'>&lt;Primary&gt;s</attribute>"
" </item>"
" <item>"
" <attribute name='label'>Save _As...</attribute>"
" <attribute name='action'>app.save-as</attribute>"
" <attribute name='accel'>&lt;Primary&gt;s</attribute>"
" </item>"
" </section>"
" <section>"
" <item>"
" <attribute name='label'>Page Setup</attribute>"
" <attribute name='action'>app.page-setup</attribute>"
" </item>"
" <item>"
" <attribute name='label'>Preview</attribute>"
" <attribute name='action'>app.preview</attribute>"
" </item>"
" <item>"
" <attribute name='label'>Print</attribute>"
" <attribute name='action'>app.print</attribute>"
" </item>"
" </section>"
" </submenu>"
" </menu>"
"</interface>";
static void
buffer_changed_callback (GtkTextBuffer *buffer)
{
file_changed = TRUE;
update_statusbar ();
}
static void
mark_set_callback (GtkTextBuffer *buffer,
const GtkTextIter *new_location,
GtkTextMark *mark,
gpointer data)
{
update_statusbar ();
}
static gint
command_line (GApplication *application,
GApplicationCommandLine *command_line)
{
int argc;
char **argv;
argv = g_application_command_line_get_arguments (command_line, &argc);
if (argc == 2)
load_file (argv[1]);
return 0;
}
static void
startup (GApplication *app)
{
GtkBuilder *builder;
GMenuModel *appmenu;
GMenuModel *menubar;
builder = gtk_builder_new ();
gtk_builder_add_from_string (builder, ui_info, -1, NULL);
appmenu = (GMenuModel *)gtk_builder_get_object (builder, "appmenu");
menubar = (GMenuModel *)gtk_builder_get_object (builder, "menubar");
gtk_application_set_app_menu (GTK_APPLICATION (app), appmenu);
gtk_application_set_menubar (GTK_APPLICATION (app), menubar);
g_object_unref (builder);
}
static void
activate (GApplication *app)
{
GtkWidget *box;
GtkWidget *bar;
GtkWidget *sw;
GtkWidget *contents;
main_window = gtk_application_window_new (GTK_APPLICATION (app));
gtk_window_set_icon_name (GTK_WINDOW (main_window), "text-editor");
gtk_window_set_default_size (GTK_WINDOW (main_window), 400, 600);
update_title (GTK_WINDOW (main_window));
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (main_window), box);
bar = gtk_menu_bar_new ();
gtk_widget_show (bar);
gtk_container_add (GTK_CONTAINER (box), bar);
/* Create document */
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
GTK_SHADOW_IN);
gtk_widget_set_vexpand (sw, TRUE);
gtk_container_add (GTK_CONTAINER (box), sw);
contents = gtk_text_view_new ();
gtk_widget_grab_focus (contents);
gtk_container_add (GTK_CONTAINER (sw),
contents);
/* Create statusbar */
statusbar = gtk_statusbar_new ();
gtk_container_add (GTK_CONTAINER (box), statusbar);
/* Show text widget info in the statusbar */
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (contents));
g_signal_connect_object (buffer,
"changed",
G_CALLBACK (buffer_changed_callback),
NULL,
0);
g_signal_connect_object (buffer,
"mark_set", /* cursor moved */
G_CALLBACK (mark_set_callback),
NULL,
0);
update_ui ();
gtk_widget_show_all (main_window);
}
int
main (int argc, char **argv)
{
GtkApplication *app;
GError *error = NULL;
gtk_init (NULL, NULL);
settings = gtk_print_settings_new_from_file ("print-settings.ini", &error);
if (error) {
g_print ("Failed to load print settings: %s\n", error->message);
g_clear_error (&error);
settings = gtk_print_settings_new ();
}
g_assert (settings != NULL);
page_setup = gtk_page_setup_new_from_file ("page-setup.ini", &error);
if (error) {
g_print ("Failed to load page setup: %s\n", error->message);
g_clear_error (&error);
}
app = gtk_application_new ("org.gtk.PrintEditor", 0);
g_action_map_add_action_entries (G_ACTION_MAP (app),
app_entries, G_N_ELEMENTS (app_entries),
app);
g_signal_connect (app, "startup", G_CALLBACK (startup), NULL);
g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
g_signal_connect (app, "command-line", G_CALLBACK (command_line), NULL);
g_application_run (G_APPLICATION (app), argc, argv);
if (!gtk_print_settings_to_file (settings, "print-settings.ini", &error)) {
g_print ("Failed to save print settings: %s\n", error->message);
g_clear_error (&error);
}
if (page_setup &&
!gtk_page_setup_to_file (page_setup, "page-setup.ini", &error)) {
g_print ("Failed to save page setup: %s\n", error->message);
g_clear_error (&error);
}
return 0;
}
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