File:  [mozdev] / chimera / BookmarksToolbar.mm
Revision 1.13: download - view: text, annotated - select for diffs - revision graph
Sat Apr 20 00:44:56 2002 UTC (15 years, 7 months ago) by macserv
Branches: MAIN
CVS tags: HEAD
A bunch of tweaks here... no changes in functionality.  Updated trilicense header on all files that were missing it.  Fixed initialization code syntax errors all over the place.  Put back fade code, and switched fading off for now...

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the NPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */

#import "BookmarksButton.h"
#import "BookmarksToolbar.h"
#import "BookmarksService.h"
#include "nsIDOMElement.h"

@implementation BookmarksToolbar

- (id)initWithFrame:(NSRect)frame {
    if ( (self = [super initWithFrame:frame]) ) {
        mBookmarks = nsnull;
        mButtons = [[NSMutableArray alloc] init];
    }
    return self;
}

-(void)initializeToolbar
{
  // Initialization code here.
  mBookmarks = new BookmarksService(self);
  mBookmarks->AddObserver();
  mBookmarks->EnsureToolbarRoot();
  [self buildButtonList];
}

-(void) dealloc
{
  [mButtons autorelease];
  mBookmarks->RemoveObserver();
  delete mBookmarks;
  [super dealloc];
}

- (void)drawRect:(NSRect)aRect {
  // Fill the background with our background color.
  //[[NSColor colorWithCalibratedWhite: 0.98 alpha: 1.0] set];
  //NSRectFill(aRect);

  //printf("The rect is: %f %f %f %f\n", aRect.origin.x, aRect.origin.y, aRect.size.width, aRect.size.height);
  
  if (aRect.origin.y + aRect.size.height ==
      [self bounds].size.height) {
    // The personal toolbar is 21 pixels tall.  The bottom two pixels
    // are a separator.
    [[NSColor colorWithCalibratedWhite: 0.90 alpha: 1.0] set];
    NSRectFill(NSMakeRect(aRect.origin.x, [self bounds].size.height-2, aRect.size.width, [self bounds].size.height));
  }

  // The buttons will paint themselves. Just call our base class method.
  [super drawRect: aRect];
}

-(void)buildButtonList
{
  // Build the buttons, and then lay them all out.
  nsCOMPtr<nsIDOMNode> child;
  BookmarksService::gToolbarRoot->GetFirstChild(getter_AddRefs(child));
  while (child) {
    nsCOMPtr<nsIDOMElement> childElt(do_QueryInterface(child));
    if (childElt) {
      BookmarksButton* button = [[[BookmarksButton alloc] initWithFrame: NSMakeRect(2, 1, 100, 17)] autorelease];
      [button setElement: childElt];
      [self addSubview: button];
      [mButtons addObject: button];
    }

    nsCOMPtr<nsIDOMNode> temp = child;
    temp->GetNextSibling(getter_AddRefs(child));
  }

  [self reflowButtons];
}

-(void)addButton: (nsIDOMElement*)aElt atIndex: (int)aIndex
{
  BookmarksButton* button = [[[BookmarksButton alloc] initWithFrame: NSMakeRect(2, 1, 100, 17)] autorelease];
  [button setElement: aElt];
  [self addSubview: button];
  [mButtons insertObject: button atIndex: aIndex];
  [self reflowButtonsStartingAtIndex: aIndex];
}

-(void)removeButton: (nsIDOMElement*)aElt
{
  int count = [mButtons count];
  for (int i = 0; i < count; i++) {
    BookmarksButton* button = [mButtons objectAtIndex: i];
    if ([button element] == aElt) {
      [mButtons removeObjectAtIndex: i];
      [button removeFromSuperview];
      if (count > i)
        [self reflowButtonsStartingAtIndex: i];
      break;
    }
  }

  [self setNeedsDisplay: YES];
}

-(void)reflowButtons
{
  [self reflowButtonsStartingAtIndex: 0];
}

-(void)reflowButtonsStartingAtIndex: (int)aIndex
{
  float oldHeight = [self frame].size.height;
  float computedHeight = 18;
  int count = [mButtons count];
  float currY = 1.0;
  float prevX = 2.0;
  if (aIndex > 0) {
    BookmarksButton* prevButton = [mButtons objectAtIndex: (aIndex-1)];
    prevX += [prevButton frame].origin.x + [prevButton frame].size.width;
    currY = [prevButton frame].origin.y;
  }
  for (int i = aIndex; i < count; i++) {
    BookmarksButton* button = [mButtons objectAtIndex: i];
    [button sizeToFit];
    float width = [button frame].size.width;
    float height = [button frame].size.height;
    if (width > 150)
      width = 150;
    if (height < 16)
      height = 16; // Our folder tiff is only 15 pixels for some reason.
    [button setFrame: NSMakeRect(prevX, currY, width, height)];

    prevX += [button frame].size.width + 2;

    if ([self bounds].size.width < prevX) {
      // The previous button didn't fit.  We need to make a new row.
      currY += 18;
      computedHeight += 18;
      if (computedHeight > oldHeight) {
        [self setFrame: NSMakeRect([self frame].origin.x, [self frame].origin.y+(oldHeight-computedHeight),
                                   [self frame].size.width, computedHeight)];
        [self setNeedsDisplay: YES];
      }
      
      prevX = 2;
      [button setFrame: NSMakeRect(prevX, currY, width, height)];
      prevX += [button frame].size.width + 2;
    }
    
    [button setNeedsDisplay: YES];
  }

  float currentHeight = [self frame].size.height;
  if (computedHeight != currentHeight) {
    [self setFrame: NSMakeRect([self frame].origin.x, [self frame].origin.y + (currentHeight - computedHeight),
                               [self frame].size.width, computedHeight)];
    [self setNeedsDisplay: YES];
  }
  
  float sizeChange = computedHeight - oldHeight;
  if (sizeChange != 0) {
    // We need to adjust the content area.
    NSView* view = [[[self window] windowController] getTabBrowser];
    [view setFrame: NSMakeRect([view frame].origin.x, [view frame].origin.y,
                               [view frame].size.width, [view frame].size.height - sizeChange)];
  }
}

-(BOOL)isFlipped
{
  return YES; // Use flipped coords, so we can layout out from top row to bottom row.
}

-(void)setFrame:(NSRect)aRect
{
  NSRect oldFrame = [self frame];
  [super setFrame:aRect];

  if (oldFrame.size.width == aRect.size.width)
    return;

  int count = [mButtons count];
  if (count <= 2)
    return; // We have too few buttons to care.
  
  // Do some optimizations when we have only one row.
  if (aRect.size.height < 25) // We have only one row.
  {
    if (oldFrame.size.width < aRect.size.width)
      // We got bigger.  If we already only have one row, just bail.
      //	This will optimize for a common resizing case.
      return;
    else {
      // We got smaller.  Just go to the last button and see if it is outside
      // our bounds.
      BookmarksButton* button = [mButtons objectAtIndex:(count-1)];
      if ([button frame].origin.x + [button frame].size.width >
          [self bounds].size.width - 2) {
        // The button doesn't fit any more.  Reflow starting at this index.
        [self reflowButtonsStartingAtIndex:(count-1)];
      }
    }
  }
  else {
    // See if we got bigger or smaller.  We could gain or lose a row.
    [self reflowButtons];
  }
}

@end

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