use page numbers starting with 1 in interface

2 files changed, 12 insertions, 4 deletions

diff --git a/src/GsWidget.cxx b/src/GsWidget.cxx
index c71ab11..6f5eb44 100644
--- a/src/GsWidget.cxx
+++ b/src/GsWidget.cxx
@@ -168,7 +168,7 @@ int GsWidget::load() {
   pid_t pid;
 
   if (dsc) {
-    return load_page(0);
+    return load_page(1);
   }
 
   if (in_fd < 0) {
@@ -208,7 +208,7 @@ GsWidget::load_page(int p) {
     return 1;
   }
 
-  if (p < 0 || p >= dsc->get_pages()) {
+  if (p < 1 || p > dsc->get_pages()) {
     fprintf(stderr, "Page %d not found in document\n", p);
     return 1;
   }
diff --git a/src/PostscriptDSC.cxx b/src/PostscriptDSC.cxx
index 3062763..b8b998a 100644
--- a/src/PostscriptDSC.cxx
+++ b/src/PostscriptDSC.cxx
@@ -156,12 +156,20 @@ PostscriptDSC::get_setup_len() {
 
 size_t
 PostscriptDSC::get_page_off(int p) {
-  return page_off[p];
+  if (p < 1 || p > pages) {
+    return 0;
+  } else {
+    return page_off[p - 1];
+  }
 }
 
 size_t
 PostscriptDSC::get_page_len(int p) {
-  return page_len[p];
+  if (p < 1 || p > pages) {
+    return 0;
+  } else {
+    return page_len[p - 1];
+  }
 }
 
 void