Improve the behaviour of the moveto function

[pspp-builds.git] / lib / gtksheet / gtksheet.c

diff --git a/lib/gtksheet/gtksheet.c b/lib/gtksheet/gtksheet.c
index 3a965aec1f54faef2c634056bf8aa1d559dbf04f..3f2fe5a467f5362e867ce7eab6259f8d091d5673 100644 (file)
--- a/lib/gtksheet/gtksheet.c
+++ b/lib/gtksheet/gtksheet.c
@@ -1506,105 +1506,50 @@ gtk_sheet_hide_row_titles (GtkSheet *sheet)
 }
 
 
+/* Scroll the sheet so that the cell ROW, COLUMN is visible.
+   If {ROW,COL}_ALIGN is zero, then the cell will be placed
+   at the {top,left} of the sheet.  If it's 1, then it'll
+   be placed at the {bottom,right}.
+   ROW or COL may be -1, in which case scrolling in that dimension
+   does not occur.
+ */
 void
 gtk_sheet_moveto (GtkSheet *sheet,
                  gint row,
-                 gint column,
+                 gint col,
                  gfloat row_align,
                  gfloat col_align)
 {
-  gint x, y;
   gint width, height;
-  gint adjust;
-  gint min_row, min_col;
-
-  g_return_if_fail (sheet != NULL);
-  g_return_if_fail (GTK_IS_SHEET (sheet));
-  g_return_if_fail (sheet->hadjustment != NULL);
-  g_return_if_fail (sheet->vadjustment != NULL);
-
-  if (row < 0 || row >= g_sheet_row_get_row_count (sheet->row_geometry))
-    return;
-  if (column < 0 || column >= g_sheet_column_get_column_count (sheet->column_geometry))
-    return;
-
-  gdk_drawable_get_size (sheet->sheet_window, &width, &height);
-
-  /* adjust vertical scrollbar */
-  if (row >= 0 && row_align >= 0.0)
-    {
-      y = g_sheet_row_start_pixel (sheet->row_geometry, row)
-       - (gint) ( row_align * height + (1.0 - row_align)
-                  * g_sheet_row_get_height (sheet->row_geometry, row));
-
-      /* This forces the sheet to scroll when you don't see the entire cell */
-      min_row = row;
-      adjust = 0;
-      if (row_align >= 1.0)
-       {
-         while (min_row >= 0 && min_row > min_visible_row (sheet))
-           {
-             adjust += g_sheet_row_get_height (sheet->row_geometry, min_row);
-
-             if (adjust >= height)
-               {
-                 break;
-               }
-             min_row--;
-           }
-         min_row = MAX (min_row, 0);
 
-         min_row ++;
+  g_return_if_fail (row_align >= 0);
+  g_return_if_fail (col_align >= 0);
 
-         y = g_sheet_row_start_pixel (sheet->row_geometry, min_row) +
-           g_sheet_row_get_height (sheet->row_geometry, min_row) - 1;
-       }
+  g_return_if_fail (row_align <= 1);
+  g_return_if_fail (col_align <= 1);
 
-      if (y < 0)
-       sheet->vadjustment->value = 0.0;
-      else
-       sheet->vadjustment->value = y;
+  g_return_if_fail (col <
+                   g_sheet_column_get_column_count (sheet->column_geometry));
+  g_return_if_fail (row <
+                   g_sheet_row_get_row_count (sheet->row_geometry));
 
-      g_signal_emit_by_name (sheet->vadjustment,
-                            "value_changed");
+  gdk_drawable_get_size (sheet->sheet_window, &width, &height);
 
-    }
 
-  /* adjust horizontal scrollbar */
-  if (column >= 0 && col_align >= 0.0)
-    {
-      x = g_sheet_column_start_pixel (sheet->column_geometry, column)
-       - (gint) ( col_align*width + (1.0 - col_align)*
-                  g_sheet_column_get_width (sheet->column_geometry, column));
+  if (row >= 0)
+  {
+    gint y =  g_sheet_row_start_pixel (sheet->row_geometry, row);
 
-      /* This forces the sheet to scroll when you don't see the entire cell */
-      min_col = column;
-      adjust = 0;
-      if (col_align == 1.0)
-       {
-         while (min_col >= 0 && min_col > min_visible_column (sheet))
-           {
-             adjust += g_sheet_column_get_width (sheet->column_geometry, min_col);
+    gtk_adjustment_set_value (sheet->vadjustment, y - height * row_align);
+  }
 
-             if (adjust >= width)
-               {
-                 break;
-               }
-             min_col--;
-           }
-         min_col = MAX (min_col, 0);
-         x = g_sheet_column_start_pixel (sheet->column_geometry, min_col) +
-           g_sheet_column_get_width (sheet->column_geometry, min_col) - 1;
-       }
 
-      if (x < 0)
-       sheet->hadjustment->value = 0.0;
-      else
-       sheet->hadjustment->value = x;
+  if (col >= 0)
+  {
+    gint x =  g_sheet_column_start_pixel (sheet->column_geometry, col);
 
-      g_signal_emit_by_name (sheet->hadjustment,
-                            "value_changed");
-    }
+    gtk_adjustment_set_value (sheet->hadjustment, x - width * col_align);
+  }
 }