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Refactor SVG save action/dialog to be a general image saving function

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This commit is contained in:
Gergely Polonkai 2014-09-17 10:38:00 +02:00
parent 93ef0d2263
commit 8e60f5611c
5 changed files with 196 additions and 32 deletions
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2
src/ag-chart.h
View File

@ -43,6 +43,8 @@ struct _AgChartClass {
GsweMomentClass parent_class;
};
typedef void (*AgChartSaveImageFunc)(AgChart *, GFile *, GError **);
GType ag_chart_get_type(void) G_GNUC_CONST;
AgChart *ag_chart_new_full(GsweTimestamp *timestamp,

179
src/ag-window.c
View File

@ -808,12 +808,12 @@ ag_window_recalculate_chart(AgWindow *window, gboolean set_everything)
}
static void
ag_window_export_svg(AgWindow *window, GError **err)
ag_window_export_image(AgWindow *window, GError **err)
{
const gchar *name;
gchar *file_name;
GtkWidget *fs;
gint response;
GError *local_err = NULL;
AgWindowPrivate *priv = ag_window_get_instance_private(window);
ag_window_recalculate_chart(window, TRUE);
@ -851,41 +851,196 @@ ag_window_export_svg(AgWindow *window, GError **err)
return;
}
file_name = g_strdup_printf("%s.svg", name);
fs = gtk_file_chooser_dialog_new(_("Export Chart as SVG"),
GTK_WINDOW(window),
GTK_FILE_CHOOSER_ACTION_SAVE,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_Save"), GTK_RESPONSE_ACCEPT,
NULL);
gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(fs), filter_svg);
gtk_file_chooser_set_filter(GTK_FILE_CHOOSER(fs), filter_svg);
gtk_dialog_set_default_response(GTK_DIALOG(fs), GTK_RESPONSE_ACCEPT);
gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(fs), FALSE);
gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(fs), TRUE);
gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(fs), file_name);
g_free(file_name);
// Due to file name modifying later (depending on the file type selection),
// we must do this manually
gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(fs), FALSE);
gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(fs), name);
while (TRUE) {
response = gtk_dialog_run(GTK_DIALOG(fs));
gtk_widget_hide(fs);
if (response == GTK_RESPONSE_ACCEPT) {
GFile *file = gtk_file_chooser_get_file(GTK_FILE_CHOOSER(fs));
GFile *file = gtk_file_chooser_get_file(
GTK_FILE_CHOOSER(fs)
);
GtkFileFilter *filter = gtk_file_chooser_get_filter(
GTK_FILE_CHOOSER(fs)
);
gchar *filename = g_file_get_uri(file),
*extension,
*current_extension;
AgChartSaveImageFunc save_func = NULL;
gboolean can_save = FALSE;
ag_chart_export_svg_to_file(priv->chart, file, err);
if (filter == filter_svg) {
extension = ".svg";
save_func = &ag_chart_export_svg_to_file;
} else {
g_warning("Unknown file type");
gtk_file_chooser_set_filter(GTK_FILE_CHOOSER(fs), filter_svg);
}
current_extension = g_utf8_strrchr(filename, -1, '.');
if (current_extension == NULL) {
gchar *tmp;
tmp = filename;
filename = g_strdup_printf("%s%s", tmp, extension);
g_free(tmp);
} else {
GFileInfo *fileinfo;
GFile *tmp_file;
gboolean valid;
GtkFileFilterInfo filter_info;
tmp_file = g_file_new_for_uri(filename);
fileinfo = g_file_query_info(
tmp_file,
G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME,
G_FILE_QUERY_INFO_NONE,
NULL,
NULL
);
g_object_unref(tmp_file);
filter_info.contains =
GTK_FILE_FILTER_URI
| GTK_FILE_FILTER_DISPLAY_NAME;
filter_info.uri = filename;
filter_info.display_name = g_file_info_get_display_name(
fileinfo
);
valid = gtk_file_filter_filter(filter, &filter_info);
g_object_unref(fileinfo);
if (!valid) {
GtkResponseType response;
gchar *message,
*new_filename;
new_filename = g_strdup_printf("%s%s", filename, extension);
message = g_strdup_printf(
"File extension doesn’t match the chosen format. " \
"Do you want Astrognome to append the correct " \
"extension (the new filename will be %s) or " \
"choose a new name?",
new_filename
);
response = ag_app_buttoned_dialog(
GTK_WINDOW(window),
GTK_MESSAGE_QUESTION,
message,
"Cancel", GTK_RESPONSE_CANCEL,
"Append extension", GTK_RESPONSE_APPLY,
"Choose new file", GTK_RESPONSE_NO,
NULL
);
if (response == GTK_RESPONSE_APPLY) {
g_free(filename);
filename = new_filename;
} else {
g_free(filename);
g_clear_object(&file);
if (response == GTK_RESPONSE_NO) {
continue;
}
break;
}
}
}
g_clear_object(&file);
file = g_file_new_for_uri(filename);
g_free(filename);
// Now check if a file under the modified name exists
if (g_file_query_exists(file, NULL)) {
GtkResponseType sub_response;
gchar *message;
GFileInfo *fileinfo;
fileinfo = g_file_query_info(
file,
G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME,
G_FILE_QUERY_INFO_NONE,
NULL,
NULL
);
message = g_strdup_printf(
"File %s already exists. Do you want to overwrite it?",
g_file_info_get_display_name(fileinfo)
);
g_object_unref(fileinfo);
sub_response = ag_app_buttoned_dialog(
GTK_WINDOW(window), GTK_MESSAGE_QUESTION,
message,
_("No"), GTK_RESPONSE_NO,
_("Yes"), GTK_RESPONSE_YES,
NULL
);
g_free(message);
can_save = (sub_response == GTK_RESPONSE_YES);
} else {
can_save = TRUE;
}
if (can_save) {
g_clear_error(&local_err);
save_func(priv->chart, file, &local_err);
if (local_err) {
ag_app_message_dialog(
GTK_WINDOW(window),
GTK_MESSAGE_ERROR,
"%s",
local_err->message
);
}
g_clear_object(&file);
break;
}
g_clear_object(&file);
} else {
break;
}
}
gtk_widget_destroy(fs);
}
static void
ag_window_export_svg_action(GSimpleAction *action,
ag_window_export_image_action(GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
AgWindow *window = AG_WINDOW(user_data);
GError *err = NULL;
ag_window_export_svg(window, &err);
ag_window_export_image(window, &err);
if (err) {
ag_app_message_dialog(
@ -1615,7 +1770,7 @@ static GActionEntry win_entries[] = {
{ "close", ag_window_close_action, NULL, NULL, NULL },
{ "save", ag_window_save_action, NULL, NULL, NULL },
{ "export-agc", ag_window_export_agc_action, NULL, NULL, NULL },
{ "export-svg", ag_window_export_svg_action, NULL, NULL, NULL },
{ "export-image", ag_window_export_image_action, NULL, NULL, NULL },
{ "view-menu", ag_window_view_menu_action, NULL, "false", NULL },
{ "gear-menu", ag_window_gear_menu_action, NULL, "false", NULL },
{ "change-tab", ag_window_change_tab_action, "s", "'edit'", NULL },

6
src/astrognome.c
View File

@ -24,6 +24,7 @@ GtkBuilder *builder;
GtkFileFilter *filter_all = NULL;
GtkFileFilter *filter_chart = NULL;
GtkFileFilter *filter_hor = NULL;
GtkFileFilter *filter_svg = NULL;
GtkTreeModel *country_list = NULL;
GtkTreeModel *city_list = NULL;
GHashTable *xinclude_positions;
@ -84,6 +85,11 @@ init_filters(void)
gtk_file_filter_set_name(filter_hor, _("Placidus charts"));
gtk_file_filter_add_pattern(filter_hor, "*.hor");
g_object_ref_sink(filter_hor);
filter_svg = gtk_file_filter_new();
gtk_file_filter_set_name(filter_svg, _("SVG image"));
gtk_file_filter_add_pattern(filter_svg, "*.svg");
g_object_ref_sink(filter_svg);
}
static int

1
src/astrognome.h
View File

@ -13,6 +13,7 @@ typedef struct {
extern GtkFileFilter *filter_all;
extern GtkFileFilter *filter_chart;
extern GtkFileFilter *filter_hor;
extern GtkFileFilter *filter_svg;
extern GtkTreeModel *country_list;
extern GtkTreeModel *city_list;
extern const GswePlanet used_planets[];

4
src/resources/ui/ag-window.ui
View File

@ -45,8 +45,8 @@
</section>
<section>
<item>
<attribute name="label" translatable="yes">Export as SVG</attribute>
<attribute name="action">win.export-svg</attribute>
<attribute name="label" translatable="yes">Export as image…</attribute>
<attribute name="action">win.export-image</attribute>
</item>
</section>
<section>