the beginnings of an overlay badge when dragging on files

macosx/DragOverlayView.m

@@ -0,0 +1,146 @@
+/******************************************************************************
+ * $Id$
+ *
+ * Copyright (c) 2007 Transmission authors and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *****************************************************************************/
+
+#import "DragOverlayView.h"
+
+@implementation DragOverlayView
+
+- (id) initWithFrame: (NSRect) frame
+{
+    if ((self = [super initWithFrame: frame]))
+    {
+        NSShadow * stringShadow = [[NSShadow alloc] init];
+        [stringShadow setShadowOffset: NSMakeSize(2.0, -2.0)];
+        [stringShadow setShadowBlurRadius: 4.0];
+        
+        NSFont * bigFont = [[NSFontManager sharedFontManager] convertFont:
+                                [NSFont fontWithName: @"Lucida Grande" size: 18.0] toHaveTrait: NSBoldFontMask],
+                * smallFont = [NSFont fontWithName: @"Lucida Grande" size: 14.0];
+        
+        NSMutableParagraphStyle * paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
+        [paragraphStyle setLineBreakMode: NSLineBreakByTruncatingTail];
+        
+        fMainLineAttributes = [[NSDictionary alloc] initWithObjectsAndKeys:
+                                [NSColor whiteColor], NSForegroundColorAttributeName,
+                                bigFont, NSFontAttributeName, stringShadow, NSShadowAttributeName,
+                                paragraphStyle, NSParagraphStyleAttributeName, nil];
+        
+        fSubLineAttributes = [[NSDictionary alloc] initWithObjectsAndKeys:
+                                [NSColor whiteColor], NSForegroundColorAttributeName,
+                                smallFont, NSFontAttributeName, stringShadow, NSShadowAttributeName,
+                                paragraphStyle, NSParagraphStyleAttributeName, nil];
+        
+        [stringShadow release];
+    }
+    return self;
+}
+
+- (void) dealloc
+{
+    if (fImage)
+        [fImage release];
+    if (fAppIcon)
+        [fAppIcon release];
+    
+    [fMainLineAttributes release];
+    [fSubLineAttributes release];
+    
+    [super dealloc];
+}
+
+- (void) setOverlay: (NSImage *) icon mainLine: (NSString *) mainLine subLine: (NSString *) subLine
+{
+    NSSize iconSize = NSMakeSize(64.0, 64.0);
+    if (!icon)
+    {
+        if (!fAppIcon)
+        {
+            fAppIcon = [[NSImage imageNamed: @"TransmissionDocument.icns"] copy];
+            [fAppIcon setScalesWhenResized: YES];
+            [fAppIcon setSize: iconSize];
+        }
+        icon = [fAppIcon retain];
+    }
+    else
+    {
+        icon = [icon copy];
+        [icon setScalesWhenResized: YES];
+        [icon setSize: iconSize];
+    }
+    
+    if (fImage)
+        [fImage release];
+    fImage = [[NSImage alloc] initWithSize: NSMakeSize(300.0, 84.0)];
+    
+    [fImage lockFocus];
+    
+    //create oval
+    #warning don't do each time
+    NSRect badgeRect = NSMakeRect(0, 0, 300.0, 80.0);
+    [[NSColor colorWithCalibratedWhite: 0.0 alpha: 0.75] set];
+    [NSBezierPath fillRect: badgeRect];
+    
+    [[NSColor whiteColor] set];
+    [NSBezierPath setDefaultLineWidth: 3.0];
+    [NSBezierPath strokeRect: badgeRect];
+    
+    float padding = 10.0;
+    
+    //place icon
+    [icon compositeToPoint: NSMakePoint(padding, (badgeRect.size.height - iconSize.height) * 0.5)
+                operation: NSCompositeSourceOver];
+    
+    //place main text
+    NSSize mainLineSize = [mainLine sizeWithAttributes: fMainLineAttributes];
+    NSSize subLineSize = [subLine sizeWithAttributes: fSubLineAttributes];
+    
+    NSRect lineRect = NSMakeRect(padding + iconSize.width + 5.0,
+                        (badgeRect.size.height + (subLineSize.height + 2.0 - mainLineSize.height)) * 0.5,
+                        badgeRect.size.width - (padding + iconSize.width + 2.0) - padding, mainLineSize.height);
+    [mainLine drawInRect: lineRect withAttributes: fMainLineAttributes];
+    
+    //place sub text
+    lineRect.origin.y -= subLineSize.height + 2.0;
+    lineRect.size.height = subLineSize.height;
+    [subLine drawInRect: lineRect withAttributes: fSubLineAttributes];
+    
+    [fImage unlockFocus];
+    
+    [icon release];
+    
+    [self setNeedsDisplay:YES];
+}
+
+-(void) drawRect: (NSRect) rect
+{
+    if (fImage)
+    {
+        NSRect frame = [self frame];
+        NSSize imageSize = [fImage size];
+        [fImage compositeToPoint: NSMakePoint((frame.size.width - imageSize.width) * 0.5,
+                    (frame.size.height - imageSize.height) * 0.5) operation: NSCompositeSourceOver];
+    }
+}
+
+@end