Navigate to any slide number

[smdp.git] / src / viewer.c

diff --git a/src/viewer.c b/src/viewer.c
index 211557e..b540b1a 100644 (file)
--- a/src/viewer.c
+++ b/src/viewer.c
@@ -361,16 +361,17 @@ int ncurses_display(deck_t *deck, int notrans, int nofade, int invert, int reloa
                 break;
 
             // show slide n
-            case '9': i++;
-            case '8': i++;
-            case '7': i++;
-            case '6': i++;
-            case '5': i++;
-            case '4': i++;
-            case '3': i++;
-            case '2': i++;
-            case '1': i++;
-                if(i <= deck->slides) {
+            case '9':
+            case '8':
+            case '7':
+            case '6':
+            case '5':
+            case '4':
+            case '3':
+            case '2':
+            case '1':
+                i = get_slide_number(c);
+                if(i > 0 && i <= deck->slides) {
                     while(sc != i) {
                         // search forward
                         if(sc < i) {
@@ -839,3 +840,20 @@ int int_length (int val) {
     }
     return l;
 }
+
+int get_slide_number(char init) {
+    int retval = init - '0';
+    char c;
+    // block for tenths of a second when using getch, ERR if no input
+    halfdelay(GOTO_SLIDE_DELAY);
+    while((c = getch()) != ERR) {
+        if (c < '0' || c > '9') {
+            retval = -1;
+            break;
+        }
+        retval = (retval * 10) + (c - '0');
+    }
+    nocbreak();     // cancel half delay mode
+    cbreak();       // go back to cbreak
+    return retval;
+}