Clean up printing in Evolution (bug #426816)

svn path=/trunk/; revision=33440

1 files changed, 126 insertions, 188 deletions

diff --git a/mail/em-format-html-print.c b/mail/em-format-html-print.c
index bc94f8aae5..ebda5aaf2a 100644
--- a/mail/em-format-html-print.c
+++ b/mail/em-format-html-print.c
@@ -26,274 +26,212 @@
 #endif
 
 #include <string.h>
-#include <libgnomeprint/gnome-print-job.h>
-#include <libgnomeprintui/gnome-print-job-preview.h>
+#include <gtk/gtk.h>
 #include <gtkhtml/gtkhtml.h>
-#include <gtk/gtkwindow.h>
 
 #include <camel/camel-i18n.h>
 #include "mail-ops.h"
 #include "mail-mt.h"
 #include "em-format-html-print.h"
-#include <gtk/gtk.h>
 #include <e-util/e-print.h>
 
-static void efhp_builtin_init(EMFormatHTMLPrintClass *efhc);
-
-static EMFormatHTMLClass *efhp_parent;
+static gpointer parent_class = NULL;
 
 static void
-efhp_init(GObject *o)
+efhp_finalize (GObject *o)
 {
 	EMFormatHTMLPrint *efhp = (EMFormatHTMLPrint *)o;
-	GtkWidget *html = (GtkWidget *)efhp->formathtml.html;
 
-	/* ?? */
-	gtk_widget_set_name(html, "EvolutionMailPrintHTMLWidget");
+	gtk_widget_destroy (efhp->window);
+	if (efhp->source != NULL)
+		g_object_unref (efhp->source);
 
-	/* gtk widgets don't like to be realized outside top level widget
-	   so we put new html widget into gtk window */
-	efhp->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
-	gtk_container_add((GtkContainer *)efhp->window, html);
-	gtk_widget_realize(html);
-	efhp->formathtml.show_icon = FALSE;
+	((GObjectClass *) parent_class)->finalize (o);
 }
 
 static void
-efhp_finalise(GObject *o)
+efhp_class_init (GObjectClass *class)
 {
-	EMFormatHTMLPrint *efhp = (EMFormatHTMLPrint *)o;
-
-	gtk_widget_destroy(efhp->window);
-	if (efhp->settings)
-		g_object_unref(efhp->settings);
-	if (efhp->source)
-		g_object_unref(efhp->source);
-
-	((GObjectClass *)efhp_parent)->finalize(o);
+	parent_class = g_type_class_ref(EM_TYPE_FORMAT_HTML_PRINT);
+	class->finalize = efhp_finalize;
 }
 
 static void
-efhp_base_init(EMFormatHTMLPrintClass *efhpklass)
+efhp_init (GObject *o)
 {
-	efhp_builtin_init(efhpklass);
-}
+	EMFormatHTMLPrint *efhp = (EMFormatHTMLPrint *)o;
+	GtkWidget *html = (GtkWidget *)efhp->parent.html;
 
-static void
-efhp_class_init(GObjectClass *klass)
-{
-	klass->finalize = efhp_finalise;
+	/* ?? */
+	gtk_widget_set_name(html, "EvolutionMailPrintHTMLWidget");
+
+	/* gtk widgets don't like to be realized outside top level widget
+	   so we put new html widget into gtk window */
+	efhp->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+	gtk_container_add (GTK_CONTAINER (efhp->window), html);
+	gtk_widget_realize (html);
+	efhp->parent.show_icon = FALSE;
 }
 
 GType
-em_format_html_print_get_type(void)
+em_format_html_print_get_type (void)
 {
 	static GType type = 0;
 
-	if (type == 0) {
-		static const GTypeInfo info = {
-			sizeof(EMFormatHTMLPrintClass),
-			(GBaseInitFunc)efhp_base_init, NULL,
-			(GClassInitFunc)efhp_class_init,
-			NULL, NULL,
-			sizeof(EMFormatHTMLPrint), 0,
-			(GInstanceInitFunc)efhp_init
+	if (G_UNLIKELY (type == 0)) {
+		static const GTypeInfo type_info = {
+			sizeof (EMFormatHTMLPrintClass),
+			(GBaseInitFunc) NULL,
+			(GBaseFinalizeFunc) NULL,
+			(GClassInitFunc) efhp_class_init,
+			(GClassFinalizeFunc) NULL,
+			NULL,  /* class_data */
+			sizeof (EMFormatHTMLPrint),
+			0,     /* n_preallocs */
+			(GInstanceInitFunc) efhp_init
 		};
-		efhp_parent = g_type_class_ref(em_format_html_get_type());
-		type = g_type_register_static(em_format_html_get_type(), "EMFormatHTMLPrint", &info, 0);
+
+		type = g_type_register_static (
+			em_format_html_get_type (), "EMFormatHTMLPrint",
+			&type_info, 0);
 	}
 
 	return type;
 }
 
-EMFormatHTMLPrint *em_format_html_print_new(void)
+EMFormatHTMLPrint *
+em_format_html_print_new (EMFormatHTML *source, GtkPrintOperationAction action)
 {
 	EMFormatHTMLPrint *efhp;
 
-	efhp = g_object_new(em_format_html_print_get_type(), 0);
+	efhp = g_object_new (EM_TYPE_FORMAT_HTML_PRINT, NULL);
+	if (source != NULL)
+		efhp->source = g_object_ref (source);
+	efhp->action = action;
 
 	return efhp;
 }
 
 struct footer_info {
-	GnomeFont *local_font;
+	PangoLayout *layout;
 	gint page_num, pages;
 };
-typedef struct MailDraw MailDraw;
-
-struct MailDraw {
-	EMFormatHTMLPrint *efhp;
-	struct footer_info info;
-	void *data;
-	gint res;
-	gdouble line;
-};
 
-static void mail_draw_page(GtkPrintOperation *print, GtkPrintContext *context, gint page_nr, MailDraw *mdi);
 static void
-efhp_footer_cb(GtkHTML *html, GtkPrintContext *print_context, double x, double y, double width, double height, void *data)
+efhp_footer_cb (GtkHTML *html, GtkPrintContext *context, gdouble x, gdouble y,
+                gdouble width, gdouble height, gpointer data)
 {
 	struct footer_info *info = data;
+	gchar *footer_text;
 	cairo_t *cr;
-     
-	/* do we want anything nicer here, like who its from, etc? */
-	if (info->local_font) {
-		char *text = g_strdup_printf (_("Page %d of %d"), info->page_num, info->pages);
-		/*gdouble tw = gnome_font_get_width_string (info->local_font, text);*/
-		/* FIXME: work out how to measure this */
-		gdouble tw = strlen(text) * 8;
-		cr = gtk_print_context_get_cairo_context (print_context);
-		cairo_save (cr);
-		cairo_set_source_rgb (cr, .0, .0, .0);
-		cairo_move_to (cr, x + width - tw, y - gnome_font_get_ascender(info->local_font));
-		cairo_set_font_face (cr, NULL);
-		cairo_set_font_size (cr, 6);
-		cairo_show_text (cr, text);
-		cairo_restore(cr);
-		g_free(text); 
-		info->page_num++;   
-	}
-}
 
-/* perform preview, or print */
-/* returns GNOME_PRINT_OK on success */
-static void
-emfhp_complete(EMFormatHTMLPrint *efhp, void *data)
-{
-	GtkPaperSize *paper_size;
-	GtkPrintOperation *print;
-	GtkPrintSettings *settings;
-	GtkPageSetup *page_setup;
-	struct MailDraw *mdi;
-	struct footer_info info;
+	footer_text = g_strdup_printf (_("Page %d of %d"),
+		info->page_num++, info->pages);
+
+	pango_layout_set_text (info->layout, footer_text, -1);
+	pango_layout_set_width (info->layout, pango_units_from_double (width));
 
-	page_setup = gtk_page_setup_new ();
-	paper_size = gtk_paper_size_new ("iso_a4");/*FIXME paper size hardcoded */
-	print = gtk_print_operation_new ();
-	gtk_page_setup_set_paper_size (page_setup, paper_size);	 
-
-	settings = e_print_load_settings ();
-	gtk_print_operation_set_print_settings (print, settings);
-	/* running the dialog */
-	gtk_print_operation_set_default_page_setup (print, page_setup);
-	gtk_print_operation_set_n_pages (print, 1); 
-
-	/*initialise the struct */
-	mdi = g_new0 (MailDraw, 1);
-	mdi->efhp = efhp;
-	mdi->line = 0.0;
-	mdi->res = GNOME_PRINT_OK;
-	mdi->info = info;
-			
-        /* connect */
-	g_signal_connect (print,"draw_page", G_CALLBACK (mail_draw_page), mdi);
-	if (!efhp->preview)
-		gtk_print_operation_run (print, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, NULL, NULL); 
-	else
-		gtk_print_operation_run (print, GTK_PRINT_OPERATION_ACTION_PREVIEW, NULL, NULL);
-	settings = gtk_print_operation_get_print_settings (print);
-	e_print_save_settings (settings);
-	g_object_unref (print);
+	cr = gtk_print_context_get_cairo_context (context);
+
+	cairo_save (cr);
+	cairo_set_source_rgb (cr, .0, .0, .0);
+	cairo_move_to (cr, x, y);
+	pango_cairo_show_layout (cr, info->layout);
+	cairo_restore (cr);
+
+	g_free (footer_text);
 }
 
 static void 
-mail_draw_page (GtkPrintOperation *print, GtkPrintContext *context, gint page_nr, MailDraw *mdi)
+mail_draw_page (GtkPrintOperation *print, GtkPrintContext *context,
+                gint page_nr, EMFormatHTMLPrint *efhp)
 {
-	mdi->info.local_font = gnome_font_find_closest("Sans Regular", 10.0);
-	if (mdi->info.local_font) {
-		mdi->line = gnome_font_get_ascender(mdi->info.local_font) - gnome_font_get_descender(mdi->info.local_font);                
-		mdi->info.page_num = 1;
-		mdi->info.pages = gtk_html_print_page_get_pages_num(mdi->efhp->formathtml.html, context, 0.0, mdi->line );
-		gtk_html_print_page_with_header_footer(mdi->efhp->formathtml.html,
-						  context, 
-						  0.0, 
-					          mdi->line,
-					          NULL,
-						  efhp_footer_cb, 
-						  &(mdi->info));
-	} else {
-		gtk_html_print_page (mdi->efhp->formathtml.html, context);
-	}
-}
+	GtkHTML *html = efhp->parent.html;
+	PangoFontDescription *desc;
+	PangoFontMetrics *metrics;
+	struct footer_info info;
+	gdouble footer_height;
 
-int em_format_html_print_print(EMFormatHTMLPrint *efhp, EMFormatHTML *source, struct GtkPrintSettings *settings, int preview)
-{
-	EMFormat *emfs = (EMFormat *)source;
+	desc = pango_font_description_from_string ("Sans Regular 10");
 
-	efhp->settings = settings;
-	if (settings)
-		g_object_ref(settings);
+	info.layout = gtk_print_context_create_pango_layout (context);
+	pango_layout_set_alignment (info.layout, PANGO_ALIGN_CENTER);
+	pango_layout_set_font_description (info.layout, desc);
 
-	efhp->preview = preview;
-	((EMFormatHTML *)efhp)->load_http = source->load_http_now;
+	metrics = pango_context_get_metrics (
+		pango_layout_get_context (info.layout),
+		desc, pango_language_get_default ());
+	footer_height = pango_units_to_double (
+		pango_font_metrics_get_ascent (metrics) +
+		pango_font_metrics_get_descent (metrics));
+	pango_font_metrics_unref (metrics);
 
-	g_signal_connect(efhp, "complete", G_CALLBACK(emfhp_complete), efhp);
+	pango_font_description_free (desc);
 
-	g_object_ref(efhp);
-	em_format_format_clone((EMFormat *)efhp, emfs->folder, emfs->uid, emfs->message, (EMFormat *)source);
+	info.page_num = 1;
+	info.pages = gtk_html_print_page_get_pages_num (
+		html, context, 0.0, footer_height);
 
-	return 0;		/* damn async ... */
+	gtk_html_print_page_with_header_footer (
+		html, context, 0.0, footer_height,
+		NULL, efhp_footer_cb, &info);
 }
 
 static void
-emfhp_got_message(struct _CamelFolder *folder, const char *uid, struct _CamelMimeMessage *msg, void *data)
+emfhp_complete (EMFormatHTMLPrint *efhp)
 {
-	EMFormatHTMLPrint *efhp = data;
-
-	if (msg) {
-		if (efhp->source)
-			((EMFormatHTML *)efhp)->load_http = efhp->source->load_http_now;
-		g_signal_connect(efhp, "complete", G_CALLBACK(emfhp_complete), efhp);
-		em_format_format_clone((EMFormat *)efhp, folder, uid, msg, (EMFormat *)efhp->source);
-	} else {
-		g_object_unref(efhp);
-	}
-}
+	GtkPrintOperation *operation;
 
-int em_format_html_print_message(EMFormatHTMLPrint *efhp, EMFormatHTML *source, struct GtkPrintSettings *settings, struct _CamelFolder *folder, const char *uid, int preview)
-{
-	efhp->settings = settings;
+	operation = e_print_operation_new ();
+	gtk_print_operation_set_n_pages (operation, 1); 
 
-	if (settings)
-		g_object_ref(settings);
-	efhp->preview = preview;
-	efhp->source = source;
-	if (source)
-		g_object_ref(source);
-	g_object_ref(efhp);
+	g_signal_connect (
+		operation, "draw-page",
+		G_CALLBACK (mail_draw_page), efhp);
 
-	mail_get_message(folder, uid, emfhp_got_message, efhp, mail_thread_new);
+	gtk_print_operation_run (operation, efhp->action, NULL, NULL); 
 
-	return 0;		/* damn async ... */
+	g_object_unref (operation);
 }
 
-int em_format_html_print_raw_message(EMFormatHTMLPrint *efhp, GtkPrintSettings *settings, struct _CamelMimeMessage *msg, int preview)
+static void
+emfhp_got_message (CamelFolder *folder, const char *uid,
+                   CamelMimeMessage *msg, gpointer data)
 {
-	efhp->settings = settings;
+	EMFormatHTMLPrint *efhp = data;
 
-	if (settings)
-		g_object_ref(settings);
-	efhp->source = NULL;
-	efhp->preview = preview;
-	g_object_ref(efhp);
+	if (msg == NULL) {
+		g_object_unref (efhp);
+		return;
+	}
 
-	emfhp_got_message(NULL, NULL, msg, efhp);
+	if (efhp->source != NULL)
+		((EMFormatHTML *)efhp)->load_http =
+			efhp->source->load_http_now;
 
-	return 0;
+	g_signal_connect (
+		efhp, "complete", G_CALLBACK (emfhp_complete), efhp);
+	em_format_format_clone (
+		(EMFormat *) efhp, folder, uid, msg,
+		(EMFormat *) efhp->source);
 }
 
-/* ********************************************************************** */
+void
+em_format_html_print_message (EMFormatHTMLPrint *efhp,
+                              CamelFolder *folder,
+                              const char *uid)
+{
+	g_object_ref (efhp);
 
-/* if only ... but i doubt this is possible with gnome print/gtkhtml */
-static EMFormatHandler type_builtin_table[] = {
-	/*{ "application/postscript", (EMFormatFunc)efhp_application_postscript },*/
-};
+	mail_get_message (
+		folder, uid, emfhp_got_message, efhp, mail_thread_new);
+}
 
-static void
-efhp_builtin_init(EMFormatHTMLPrintClass *efhc)
+void
+em_format_html_print_raw_message (EMFormatHTMLPrint *efhp,
+                                  CamelMimeMessage *msg)
 {
-	int i;
+	g_object_ref (efhp);
 
-	for (i=0;i<sizeof(type_builtin_table)/sizeof(type_builtin_table[0]);i++)
-		em_format_class_add_handler((EMFormatClass *)efhc, &type_builtin_table[i]);
+	emfhp_got_message (NULL, NULL, msg, efhp);
 }