From 6d7f9e7cf7678b48828be0722ae2e998ce85b7a7 Mon Sep 17 00:00:00 2001
From: Marco Pesenti Gritti <marco@gnome.org>
Date: Thu, 24 Feb 2005 12:47:27 +0000
Subject: Separate page/scale notifications

2005-02-24  Marco Pesenti Gritti  <marco@gnome.org>

        * backend/ev-document.c: (ev_document_class_init),
        (ev_document_page_changed), (ev_document_scale_changed):
        * backend/ev-document.h:

        Separate page/scale notifications

        * pdf/xpdf/pdf-document.cc:

        Emit the new signals.
        Do not display the pdf page in _render, do it
        when scale/page are requested.

        * ps/ps-document.c: (ps_document_set_zoom),
        (ps_document_widget_event):
        * ps/ps-document.h:

        Emit the new signals.

        * shell/ev-view.c: (ev_view_size_request), (expose_bin_window),
        (ev_view_init), (page_changed_callback), (scale_changed_callback),
        (ev_view_set_document), (ev_view_zoom), (ev_view_zoom_in),
        (ev_view_zoom_out), (size_to_zoom_factor), (ev_view_set_size):
        * shell/ev-view.h:
        * shell/ev-window.c: (ev_window_cmd_view_normal_size),
        (ev_window_cmd_view_page_width), (size_allocate_cb),
        (ev_window_set_sizing_mode):

        Rework sizing to be pixel based.
        There are bugs but should be already way better.
---
(limited to 'pdf')

diff --git a/pdf/xpdf/pdf-document.cc b/pdf/xpdf/pdf-document.cc
index edb8122..777e949 100644
--- a/pdf/xpdf/pdf-document.cc
+++ b/pdf/xpdf/pdf-document.cc
@@ -90,7 +90,6 @@ struct _PdfDocument
 	UnicodeMap *umap;
 
 	gchar *password;
-	gboolean page_valid;
 
 	PdfDocumentSearch *search;
 };
@@ -136,29 +135,21 @@ document_init_links (PdfDocument *pdf_document)
 	obj.free ();
 }
 
-static gboolean
-document_validate_page (PdfDocument *pdf_document)
+static void
+document_display_page (PdfDocument *pdf_document)
 {
-	if (!pdf_document->page_valid) {
-		pdf_document->doc->displayPage (pdf_document->out, pdf_document->page,
-						72 * pdf_document->scale,
-						72 * pdf_document->scale,
-						0, gTrue, gTrue);
-
-		document_init_links (pdf_document);
+	pdf_document->doc->displayPage (pdf_document->out, pdf_document->page,
+					72 * pdf_document->scale,
+					72 * pdf_document->scale,
+					0, gTrue, gTrue);
 
-		pdf_document->page_valid = TRUE;
-
-		ev_document_changed (EV_DOCUMENT (pdf_document));
-
-                /* Update the search results available to the app since
-                 * we only provide full results on the current page
-                 */
-                if (pdf_document->search)
-                        pdf_document_search_page_changed (pdf_document->search);
-	}
+	document_init_links (pdf_document);
 
-	return pdf_document->page_valid;
+	/* Update the search results available to the app since
+	 * we only provide full results on the current page
+         */
+	if (pdf_document->search)
+		pdf_document_search_page_changed (pdf_document->search);
 }
 
 static gboolean
@@ -227,8 +218,6 @@ pdf_document_load (EvDocument  *document,
 	if (pdf_document->out)
 		pdf_document->out->startDoc(pdf_document->doc->getXRef());
 
-	pdf_document->page_valid = FALSE;
-
 	g_object_notify (G_OBJECT (pdf_document), "title");
 
 	return TRUE;
@@ -274,7 +263,8 @@ pdf_document_set_page (EvDocument  *document,
 
 	if (page != pdf_document->page) {
 		pdf_document->page = page;
-		pdf_document->page_valid = FALSE;
+		document_display_page (pdf_document);
+		ev_document_page_changed (EV_DOCUMENT (pdf_document));
 	}
 }
 
@@ -321,7 +311,7 @@ pdf_document_set_target (EvDocument  *document,
 
 		}
 
-		pdf_document->page_valid = FALSE;
+		document_display_page (pdf_document);
 	}
 }
 
@@ -333,7 +323,8 @@ pdf_document_set_scale (EvDocument  *document,
 
 	if (pdf_document->scale != scale) {
 		pdf_document->scale = scale;
-		pdf_document->page_valid = FALSE;
+		document_display_page (pdf_document);
+		ev_document_scale_changed (EV_DOCUMENT (pdf_document));
 	}
 }
 
@@ -384,7 +375,7 @@ pdf_document_render (EvDocument  *document,
 	GdkRectangle page;
 	GdkRectangle draw;
 
-	if (!document_validate_page (pdf_document) || !pdf_document->target)
+	if (!pdf_document->target)
 		return;
 
 	page.x = pdf_document->page_x_offset;
@@ -486,12 +477,6 @@ pdf_document_search_page_changed (PdfDocumentSearch   *search)
 
         current_page = pdf_document->page;
 
-        if (!pdf_document->page_valid) {
-                /* we can't do anything until displayPage() */
-                search->current_page = -1;
-                return;
-        }
-
         if (search->current_page == current_page)
                 return;
 
@@ -1363,7 +1348,6 @@ pdf_document_init (PdfDocument *pdf_document)
 	pdf_document->page_y_offset = 0;
 	pdf_document->scale = 1.;
 
-	pdf_document->page_valid = FALSE;
 	pdf_document->password = NULL;
 }
 
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