macosx: re-written the way we render 3 part images by using another custom view (refs #5742)

this fixes various drawing issues with the time slider and the window title
(cherry picked from commit fb10d756)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/gui/macosx/MainWindow.h

@@ -51,10 +51,7 @@
     IBOutlet id o_time_fld;
     IBOutlet id o_progress_bar;
     IBOutlet id o_bottombar_view;
-    IBOutlet id o_time_sld_left_view;
-    IBOutlet id o_time_sld_middle_view;
-    IBOutlet id o_time_sld_right_view;
-    // TODO Playlist table, additional ui stuff at the top of the window
+    IBOutlet id o_time_sld_background;
     IBOutlet id o_playlist_table;
     IBOutlet id o_video_view;
     IBOutlet id o_split_view;
@@ -172,12 +169,3 @@
 - (void)windowWillExitFullScreen:(NSNotification *)notification;
 
 @end
-
-@interface VLCProgressBarGradientEffect : NSView {
-    NSImage * o_time_sld_gradient_left_img;
-    NSImage * o_time_sld_gradient_middle_img;
-    NSImage * o_time_sld_gradient_right_img;
-}
-- (void)loadImagesInDarkStyle:(BOOL)b_value;
-@end
-

modules/gui/macosx/MainWindow.m

@@ -162,9 +162,7 @@ static VLCMainWindow *_o_sharedInstance = nil;
         o_shuffle_pressed_img = [[NSImage imageNamed:@"shuffle-pressed"] retain];
         o_shuffle_on_img = [[NSImage imageNamed:@"shuffle-blue"] retain];
         o_shuffle_on_pressed_img = [[NSImage imageNamed:@"shuffle-blue-pressed"] retain];
-        [o_time_sld_left_view setImage: [NSImage imageNamed:@"progression-track-wrapper-left"]];
-        [o_time_sld_middle_view setImage: [NSImage imageNamed:@"progression-track-wrapper-middle"]];
-        [o_time_sld_right_view setImage: [NSImage imageNamed:@"progression-track-wrapper-right"]];
+        [o_time_sld_background setImagesLeft: [NSImage imageNamed:@"progression-track-wrapper-left"] middle: [NSImage imageNamed:@"progression-track-wrapper-middle"] right: [NSImage imageNamed:@"progression-track-wrapper-right"]];
         [o_volume_down_btn setImage: [NSImage imageNamed:@"volume-low"]];
         [o_volume_track_view setImage: [NSImage imageNamed:@"volume-slider-track"]];
         [o_volume_up_btn setImage: [NSImage imageNamed:@"volume-high"]];
@@ -180,7 +178,7 @@ static VLCMainWindow *_o_sharedInstance = nil;
         }
         [o_fullscreen_btn setImage: [NSImage imageNamed:@"fullscreen-double-buttons"]];
         [o_fullscreen_btn setAlternateImage: [NSImage imageNamed:@"fullscreen-double-buttons-pressed"]];
-        [o_time_sld_fancygradient_view loadImagesInDarkStyle:NO];
+        [o_time_sld_fancygradient_view setImagesLeft:[NSImage imageNamed:@"progression-fill-left"] middle:[NSImage imageNamed:@"progression-fill-middle"] right:[NSImage imageNamed:@"progression-fill-right"]];
     }
     else
     {
@@ -208,9 +206,7 @@ static VLCMainWindow *_o_sharedInstance = nil;
         o_shuffle_on_img = [[NSImage imageNamed:@"shuffle-blue_dark"] retain];
         o_shuffle_on_pressed_img = [[NSImage imageNamed:@"shuffle-blue-pressed_dark"] retain];
         [o_time_fld setTextColor: [NSColor colorWithCalibratedRed:229.0 green:229.0 blue:229.0 alpha:100.0]];
-        [o_time_sld_left_view setImage: [NSImage imageNamed:@"progression-track-wrapper-left_dark"]];
-        [o_time_sld_middle_view setImage: [NSImage imageNamed:@"progression-track-wrapper-middle_dark"]];
-        [o_time_sld_right_view setImage: [NSImage imageNamed:@"progression-track-wrapper-right_dark"]];
+        [o_time_sld_background setImagesLeft: [NSImage imageNamed:@"progression-track-wrapper-left_dark"] middle: [NSImage imageNamed:@"progression-track-wrapper-middle_dark"] right: [NSImage imageNamed:@"progression-track-wrapper-right_dark"]];
         [o_volume_down_btn setImage: [NSImage imageNamed:@"volume-low_dark"]];
         [o_volume_track_view setImage: [NSImage imageNamed:@"volume-slider-track_dark"]];
         [o_volume_up_btn setImage: [NSImage imageNamed:@"volume-high_dark"]];
@@ -226,7 +222,7 @@ static VLCMainWindow *_o_sharedInstance = nil;
         }
         [o_fullscreen_btn setImage: [NSImage imageNamed:@"fullscreen-double-buttons_dark"]];
         [o_fullscreen_btn setAlternateImage: [NSImage imageNamed:@"fullscreen-double-buttons-pressed_dark"]];
-        [o_time_sld_fancygradient_view loadImagesInDarkStyle:YES];
+        [o_time_sld_fancygradient_view setImagesLeft:[NSImage imageNamed:@"progressbar-fill-left_dark"] middle:[NSImage imageNamed:@"progressbar-fill-middle_dark"] right:[NSImage imageNamed:@"progressbar-fill-right_dark"]];
     }
     [o_repeat_btn setImage: o_repeat_img];
     [o_repeat_btn setAlternateImage: o_repeat_pressed_img];
@@ -267,7 +263,7 @@ static VLCMainWindow *_o_sharedInstance = nil;
         moveItem( o_volume_track_view );
         moveItem( o_volume_down_btn );
         moveItem( o_time_fld );
-        moveItem( o_time_sld_right_view );
+        moveItem( o_time_sld_background );
         #undef moveItem
 
         #define enlargeItem( item ) \
@@ -277,7 +273,7 @@ static VLCMainWindow *_o_sharedInstance = nil;
 
         enlargeItem( o_time_sld );
         enlargeItem( o_progress_bar );
-        enlargeItem( o_time_sld_middle_view );
+        enlargeItem( o_time_sld_background );
         enlargeItem( o_time_sld_fancygradient_view );
         #undef enlargeItem
 
@@ -1021,15 +1017,15 @@ static VLCMainWindow *_o_sharedInstance = nil;
 - (void)drawFancyGradientEffectForTimeSlider
 {
     NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
-    float f_value = [o_time_sld_middle_view frame].size.width * ([o_time_sld intValue] / [o_time_sld maxValue]);
-    if (f_value > 5.0)
+    float f_value = ([o_time_sld frame].size.width - [o_time_sld frame].origin.x - [o_time_sld knobPosition]) * -1.0;
+    if (f_value > 7.5)
     {
-        if (f_value != [o_time_sld_fancygradient_view frame].size.width)
+        NSRect oldFrame = [o_time_sld_fancygradient_view frame];
+        if (f_value != oldFrame.size.width)
         {
             [o_time_sld_fancygradient_view setHidden: NO];
-            [o_time_sld_fancygradient_view setFrame: NSMakeRect( [o_time_sld_fancygradient_view frame].origin.x, [o_time_sld_fancygradient_view frame].origin.y, f_value, [o_time_sld_fancygradient_view frame].size.height )];
+            [o_time_sld_fancygradient_view setFrame: NSMakeRect( oldFrame.origin.x, oldFrame.origin.y, f_value, oldFrame.size.height )];
             [o_time_sld_fancygradient_view setNeedsDisplay:YES];
-            [o_time_sld_middle_view setNeedsDisplay:YES];
         }
     }
     else
@@ -1806,35 +1802,3 @@ static VLCMainWindow *_o_sharedInstance = nil;
 }
 
 @end
-
-@implementation VLCProgressBarGradientEffect
-- (void)dealloc
-{
-    [o_time_sld_gradient_left_img release];
-    [o_time_sld_gradient_middle_img release];
-    [o_time_sld_gradient_right_img release];
-    [super dealloc];
-}
-
-- (void)loadImagesInDarkStyle: (BOOL)b_value
-{
-    if (b_value)
-    {
-        o_time_sld_gradient_left_img = [[NSImage imageNamed:@"progressbar-fill-left_dark"] retain];
-        o_time_sld_gradient_middle_img = [[NSImage imageNamed:@"progressbar-fill-middle_dark"] retain];
-        o_time_sld_gradient_right_img = [[NSImage imageNamed:@"progressbar-fill-right_dark"] retain];
-    }
-    else
-    {
-        o_time_sld_gradient_left_img = [[NSImage imageNamed:@"progression-fill-left"] retain];
-        o_time_sld_gradient_middle_img = [[NSImage imageNamed:@"progression-fill-middle"] retain];
-        o_time_sld_gradient_right_img = [[NSImage imageNamed:@"progression-fill-right"] retain];
-    }
-}
-
-- (void)drawRect:(NSRect)rect
-{
-    NSRect bnds = [self bounds];
-    NSDrawThreePartImage( bnds, o_time_sld_gradient_left_img, o_time_sld_gradient_middle_img, o_time_sld_gradient_right_img, NO, NSCompositeSourceOver, 1, NO );
-}
-@end

modules/gui/macosx/MainWindowTitle.h

@@ -22,12 +22,13 @@
  *****************************************************************************/
 
 #import <Cocoa/Cocoa.h>
+#import "misc.h"
 
 /*****************************************************************************
  * VLCMainWindowTitleView
  *****************************************************************************/
 
-@interface VLCMainWindowTitleView : NSImageView
+@interface VLCMainWindowTitleView : VLCThreePartImageView
 {
     NSImage * o_red_img;
     NSImage * o_red_over_img;

modules/gui/macosx/MainWindowTitle.m

@@ -55,11 +55,8 @@
 
 - (void)awakeFromNib
 {
-    [self setImageScaling: NSScaleToFit];
-    [self setImageFrameStyle: NSImageFrameNone];
-    [self setImageAlignment: NSImageAlignCenter];
-    [self setImage: [NSImage imageNamed:@"topbar-dark-center-fill"]];
     [self setAutoresizesSubviews: YES];
+    [self setImagesLeft:[NSImage imageNamed:@"topbar-dark-left"] middle: [NSImage imageNamed:@"topbar-dark-center-fill"] right:[NSImage imageNamed:@"topbar-dark-right"]];
 
     [self loadButtonIcons];
     [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(controlTintChanged:) name: NSControlTintDidChangeNotification object: nil];
@@ -208,7 +205,6 @@
     else
         [o_fullscreen_btn setImage: [NSImage imageNamed:@"window-fullscreen"]];
 }
-
 @end
 
 /*****************************************************************************

modules/gui/macosx/misc.h

@@ -118,7 +118,10 @@
 
 @interface TimeLineSlider : NSSlider
 {
+    NSImage *o_knob_img;
+    NSRect img_rect;
 }
+- (CGFloat)knobPosition;
 
 - (void)drawRect:(NSRect)rect;
 - (void)drawKnobInRect:(NSRect)knobRect;
@@ -158,3 +161,16 @@
 }
 
 @end
+
+/*****************************************************************************
+ * VLCThreePartImageView interface
+ *****************************************************************************/
+@interface VLCThreePartImageView : NSView
+{
+    NSImage * o_left_img;
+    NSImage * o_middle_img;
+    NSImage * o_right_img;
+}
+
+- (void)setImagesLeft:(NSImage *)left middle: (NSImage *)middle right:(NSImage *)right;
+@end

modules/gui/macosx/misc.m

@@ -601,17 +601,32 @@ void _drawFrameInRect(NSRect frameRect)
 
 @implementation TimeLineSlider
 
+- (void)awakeFromNib
+{
+    o_knob_img = [NSImage imageNamed:@"progression-knob"];
+    img_rect.size = [o_knob_img size];
+    img_rect.origin.x = img_rect.origin.y = 0;
+}
+
+- (void)dealloc
+{
+    [o_knob_img release];
+    [super dealloc];
+}
+
+- (CGFloat)knobPosition
+{
+    NSRect knobRect = [[self cell] knobRectFlipped:NO];
+    knobRect.origin.x += knobRect.size.width / 2;
+    return knobRect.origin.x;
+}
+
 - (void)drawKnobInRect:(NSRect)knobRect
 {
-    NSRect image_rect;
-    NSImage *img = [NSImage imageNamed:@"progression-knob"];
-    image_rect.size = [img size];
-    image_rect.origin.x = 0;
-    image_rect.origin.y = 0;
-    knobRect.origin.x += (knobRect.size.width - image_rect.size.width) / 2;
-    knobRect.size.width = image_rect.size.width;
-    knobRect.size.height = image_rect.size.height;
-    [img drawInRect:knobRect fromRect:image_rect operation:NSCompositeSourceOver fraction:1];
+    knobRect.origin.x += (knobRect.size.width - img_rect.size.width) / 2;
+    knobRect.size.width = img_rect.size.width;
+    knobRect.size.height = img_rect.size.height;
+    [o_knob_img drawInRect:knobRect fromRect:img_rect operation:NSCompositeSourceOver fraction:1];
 }
 
 - (void)drawRect:(NSRect)rect
@@ -732,3 +747,38 @@ void _drawFrameInRect(NSRect frameRect)
     [[o_subviews objectAtIndex:1] setFrame: rightViewDimensions];
 }
 @end
+
+/*****************************************************************************
+ * VLCThreePartImageView interface
+ *****************************************************************************/
+@implementation VLCThreePartImageView
+- (void)dealloc
+{
+    [o_left_img release];
+    [o_middle_img release];
+    [o_right_img release];
+
+    [super dealloc];
+}
+
+- (void)setImagesLeft:(NSImage *)left middle: (NSImage *)middle right:(NSImage *)right
+{
+    if (o_left_img)
+        [o_left_img release];
+    if (o_middle_img)
+        [o_middle_img release];
+    if (o_right_img)
+        [o_right_img release];
+
+    o_left_img = [left retain];
+    o_middle_img = [middle retain];
+    o_right_img = [right retain];
+}
+
+- (void)drawRect:(NSRect)rect
+{
+    NSRect bnds = [self bounds];
+    NSDrawThreePartImage( bnds, o_left_img, o_middle_img, o_right_img, NO, NSCompositeSourceOver, 1, NO );
+}
+
+@end