Fix the crash when trying to copy in backends that doesnt support it. We

[evince.git] / ps / ps-document.c

diff --git a/ps/ps-document.c b/ps/ps-document.c
index d7995f7688505d1b7c003dd5c16ef6e2e2d3e29b..d06855f30ac02ee9039f98a4ed793380f7ef81bc 100644 (file)
--- a/ps/ps-document.c
+++ b/ps/ps-document.c
@@ -372,8 +372,6 @@ setup_pixmap (PSDocument *gs, int page, double scale)
        pixmap_width = floor (width * scale);
        pixmap_height = floor (height * scale);
 
-       g_print ("%f %f %f %d %d\n", width, height, scale, pixmap_width, pixmap_height);
-
        if(gs->bpixmap) {
                int w, h;
 
@@ -400,43 +398,99 @@ setup_pixmap (PSDocument *gs, int page, double scale)
        }
 }
 
+#define DEFAULT_PAGE_SIZE 1
+
 static void
 get_page_box (PSDocument *gs, int page, int *urx, int *ury, int *llx, int *lly)
 {
-       GtkGSPaperSize *paper_sizes = gtk_gs_defaults_get_paper_sizes ();
+  gint new_llx = 0;
+  gint new_lly = 0;
+  gint new_urx = 0;
+  gint new_ury = 0;
+  GtkGSPaperSize *papersizes = gtk_gs_defaults_get_paper_sizes();
+  int new_pagesize = -1;
+
+  g_return_if_fail(PS_IS_DOCUMENT(gs));
+
+  if(new_pagesize == -1) {
+    new_pagesize = DEFAULT_PAGE_SIZE;
+    if(gs->doc) {
+      /* If we have a document:
+         We use -- the page size (if specified)
+         or the doc. size (if specified)
+         or the page bbox (if specified)
+         or the bounding box
+       */
+      if((page >= 0) && (gs->doc->numpages > page) &&
+         (gs->doc->pages) && (gs->doc->pages[page].size)) {
+        new_pagesize = gs->doc->pages[page].size - gs->doc->size;
+      }
+      else if(gs->doc->default_page_size != NULL) {
+        new_pagesize = gs->doc->default_page_size - gs->doc->size;
+      }
+      else if((page >= 0) &&
+              (gs->doc->numpages > page) &&
+              (gs->doc->pages) &&
+              (gs->doc->pages[page].boundingbox[URX] >
+               gs->doc->pages[page].boundingbox[LLX]) &&
+              (gs->doc->pages[page].boundingbox[URY] >
+               gs->doc->pages[page].boundingbox[LLY])) {
+        new_pagesize = -1;
+      }
+      else if((gs->doc->boundingbox[URX] > gs->doc->boundingbox[LLX]) &&
+              (gs->doc->boundingbox[URY] > gs->doc->boundingbox[LLY])) {
+        new_pagesize = -1;
+      }
+    }
+  }
 
-       g_return_if_fail (PS_IS_DOCUMENT (gs));
-       g_return_if_fail (gs->doc != NULL);
-       g_return_if_fail (page >= 0);
-
-       if (gs->doc->pages && gs->doc->pages[page].size) {
-               int page_size;
-
-               page_size = gs->doc->pages[page].size - gs->doc->size;
-               *llx = *lly = 0;
-               *urx = gs->doc->size[page_size].width;
-               *ury = gs->doc->size[page_size].height;
-       } else if (gs->doc->pages &&
-                   (gs->doc->pages[page].boundingbox[URX] >
-                    gs->doc->pages[page].boundingbox[LLX]) &&
-                   (gs->doc->pages[page].boundingbox[URY] >
-                    gs->doc->pages[page].boundingbox[LLY])) {
-               *llx = gs->doc->pages[page].boundingbox[LLX];
-               *lly = gs->doc->pages[page].boundingbox[LLY];
-               *urx = gs->doc->pages[page].boundingbox[URX];
-               *ury = gs->doc->pages[page].boundingbox[URY];
-       } else if ((gs->doc->boundingbox[URX] > gs->doc->boundingbox[LLX]) &&
-                   (gs->doc->boundingbox[URY] > gs->doc->boundingbox[LLY])) {
-               *llx = gs->doc->boundingbox[LLX];
-               *lly = gs->doc->boundingbox[LLY];
-               *urx = gs->doc->boundingbox[URX];
-               *ury = gs->doc->boundingbox[URY];
-       } else {
-               /* Fallback to A4 */
-               *llx = *lly = 0;
-               *urx = paper_sizes[12].width;
-               *ury = paper_sizes[12].height;
-       }
+  /* Compute bounding box */
+  if(gs->doc && (gs->doc->epsf || new_pagesize == -1)) {    /* epsf or bbox */
+    if((page >= 0) &&
+       (gs->doc->pages) &&
+       (gs->doc->pages[page].boundingbox[URX] >
+        gs->doc->pages[page].boundingbox[LLX])
+       && (gs->doc->pages[page].boundingbox[URY] >
+           gs->doc->pages[page].boundingbox[LLY])) {
+      /* use page bbox */
+      new_llx = gs->doc->pages[page].boundingbox[LLX];
+      new_lly = gs->doc->pages[page].boundingbox[LLY];
+      new_urx = gs->doc->pages[page].boundingbox[URX];
+      new_ury = gs->doc->pages[page].boundingbox[URY];
+    }
+    else if((gs->doc->boundingbox[URX] > gs->doc->boundingbox[LLX]) &&
+            (gs->doc->boundingbox[URY] > gs->doc->boundingbox[LLY])) {
+      /* use doc bbox */
+      new_llx = gs->doc->boundingbox[LLX];
+      new_lly = gs->doc->boundingbox[LLY];
+      new_urx = gs->doc->boundingbox[URX];
+      new_ury = gs->doc->boundingbox[URY];
+    }
+  }
+  else {
+    if(new_pagesize < 0)
+      new_pagesize = DEFAULT_PAGE_SIZE;
+    new_llx = new_lly = 0;
+    if(gs->doc && gs->doc->size &&
+       (new_pagesize < gs->doc->numsizes)) {
+      new_urx = gs->doc->size[new_pagesize].width;
+      new_ury = gs->doc->size[new_pagesize].height;
+    }
+    else {
+      new_urx = papersizes[new_pagesize].width;
+      new_ury = papersizes[new_pagesize].height;
+    }
+  }
+
+  if(new_urx <= new_llx)
+    new_urx = papersizes[12].width;
+  if(new_ury <= new_lly)
+    new_ury = papersizes[12].height;
+
+  *urx = new_urx;
+  *ury = new_ury;
+  *llx = new_llx;
+  *lly = new_lly;
 }
 
 static int
@@ -1232,11 +1286,10 @@ ps_document_get_page_size (EvDocument   *document,
        }
 }
 
-static char *
-ps_document_get_text (EvDocument *document, int page, EvRectangle *rect)
+static gboolean
+ps_document_can_get_text (EvDocument *document)
 {
-       g_warning ("ps_document_get_text not implemented"); /* FIXME ? */
-       return NULL;
+       return FALSE;
 }
 
 static gboolean
@@ -1294,7 +1347,7 @@ ps_document_document_iface_init (EvDocumentIface *iface)
 {
        iface->load = ps_document_load;
        iface->save = ps_document_save;
-       iface->get_text = ps_document_get_text;
+       iface->can_get_text = ps_document_can_get_text;
        iface->get_n_pages = ps_document_get_n_pages;
        iface->get_page_size = ps_document_get_page_size;
        iface->render_pixbuf = ps_document_render_pixbuf;