First implementation of drawing. Just the bare minimum to be able to work

on NSTableView.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@5352 72102866-910b-0410-8b05-ffd578937521

Source/NSTableHeaderView.m

@@ -1,46 +1,165 @@
+/*
+   NSTableHeaderView.m
+
+   Copyright (C) 1999 Free Software Foundation, Inc.
+
+   Author: Michael Hanni  <mhanni@sprintmail.com>
+   Date: 1999
+   Skeleton.
+
+   Author: Nicola Pero <n.pero@mi.flashnet.it>
+   Date: December 1999
+   First actual coding.
+
+   This file is part of the GNUstep GUI Library.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, write to the Free Software Foundation,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#include <Foundation/NSArray.h>
+#include <AppKit/NSTableHeaderCell.h>
 #include <AppKit/NSTableHeaderView.h>
+#include <AppKit/NSTableColumn.h>
+#include <AppKit/NSTableView.h>
 
 @implementation NSTableHeaderView
-- (void)setTableView:(NSTableView *)aTableView
 {
-  ASSIGN(tbhv_tableview, aTableView);
+}
+/*
+ *
+ * Class methods
+ *
+ */
++ (void) initialize
+{
+  if (self == [NSTableColumn class])
+    [self setVersion: 1];
 }
 
-- (NSTableView *)tableView
-{
-  return tbhv_tableview;
-}
+/*
+ *
+ * Instance methods
+ *
+ */
 
+/*
+ * Initializes an instance
+ */
+
+// TODO: Remove this method, if not really needed
+- (NSTableHeaderView*)initWithFrame:(NSRect)frameRect
+{
+  self = [super initWithFrame: frameRect];
+  _tableView = nil;
+  return self;
+}
+/*
+ * Setting the table view 
+ */
+- (void)setTableView: (NSTableView*)aTableView
+{
+  // We do not RETAIN aTableView but aTableView is supposed 
+  // to RETAIN us.
+  _tableView = aTableView;
+}
+- (NSTableView*)tableView
+{
+  return _tableView;
+}
+/*
+ * Checking altered columns 
+ */
 - (int)draggedColumn
 {
-  // more thought has to go into this, though the default case is -1.
-
+  // TODO
   return -1;
 }
-
 - (float)draggedDistance
 {
-  // return horizontal distance from last location.
-
+  // TODO
   return -1;
 }
-
 - (int)resizedColumn
 {
-  // index of resized column?
-
+  // TODO
   return -1;
 }
-
-- (int)columnAtPoint:(NSPoint)aPoint
+/*
+ * Utility methods 
+ */
+- (int)columnAtPoint: (NSPoint)aPoint
 {
-  // black magic here to deduce the column at point, quite easy.
+  // TODO
+  return -1;
+}
+- (NSRect)headerRectOfColumn: (int)columnIndex
+{
+  NSArray* columns;
+  NSRect rect;
+  int i;
 
-  return -1; // No such column
+  if (_tableView == nil)
+    return NSZeroRect;
+
+  columns = [_tableView tableColumns];
+  
+  NSAssert(columnIndex > 0, NSInternalInconsistencyException);
+  NSAssert(columnIndex < [columns count], NSInternalInconsistencyException);
+
+  rect.origin.x = bounds.origin.x;
+  rect.origin.y = bounds.origin.y;
+  rect.size.height = bounds.size.height;
+  
+  for (i = 0; i < columnIndex; i++)
+    {
+      rect.origin.x += [[columns objectAtIndex: i] width];
+    }
+  rect.size.width = [[columns objectAtIndex: columnIndex] width];
+
+  return rect;
 }
 
-- (NSRect)headerRectOfColumn:(int)columnIndex
+/*
+ * Overidden Methods
+ */
+- (void)drawRect: (NSRect)aRect
 {
-  // bzzt. weird.
+  NSArray* columns;
+  NSRange columnsToDraw;
+  int i;
+
+  if (_tableView == nil)
+    return;
+  
+  columnsToDraw = [_tableView columnsInRect: aRect];
+  if (columnsToDraw.length == 0)
+    return;
+
+  columns = [_tableView tableColumns];
+  
+  for (i = columnsToDraw.location; i < columnsToDraw.length + 1; i++)
+    {
+      [[[columns objectAtIndex: i] headerCell] 
+	drawWithFrame: [self headerRectOfColumn: i] 
+	inView: self];
+    }
+}
+-(void)mouseDown: (NSEvent*)event
+{
+  // TODO
+  [super mouseDown: event];
 }
 @end