Initial implementation of NSColorList and NSColorWell.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@1971 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,8 @@
+Thu Dec  5 06:58:51 1996  GNUstep Development  <gnustep@net-community.com>
+
+	* Source/NSColorList.m: Fill out implementation.
+	* Source/NSColorWell.m: Initial implementation.
+
 Thu Dec 05 09:56:25 1996  Scott Christley  <scottc@net-community.com>
 
 	* Headers/gnustep/gui/NSMenu.h: Newer release of OpenStep

Headers/gnustep/gui/NSColorList.h

@@ -1,7 +1,7 @@
 /* 
    NSColorList.h
 
-   Description...
+   Manage named lists of NSColors.
 
    Copyright (C) 1996 Free Software Foundation, Inc.
 
@@ -32,11 +32,19 @@
 #include <AppKit/stdappkit.h>
 #include <AppKit/NSColor.h>
 #include <Foundation/NSCoder.h>
+#include <Foundation/NSDictionary.h>
+#include <Foundation/NSArray.h>
+#include <Foundation/NSString.h>
 
 @interface NSColorList : NSObject <NSCoding>
 
 {
   // Attributes
+  NSString *list_name;
+  NSString *file_name;
+  NSMutableDictionary *color_list;
+  NSMutableArray *color_list_keys;
+  BOOL is_editable;
 }
 
 //
@@ -64,7 +72,7 @@
 - (NSColor *)colorWithKey:(NSString *)key;
 - (void)insertColor:(NSColor *)color
 		key:(NSString *)key
-atIndex:(unsigned)location;
+	    atIndex:(unsigned)location;
 - (void)removeColorWithKey:(NSString *)key;
 - (void)setColor:(NSColor *)aColor
 	  forKey:(NSString *)key;

Headers/gnustep/gui/NSColorWell.h

@@ -1,7 +1,7 @@
 /* 
    NSColorWell.h
 
-   Description...
+   NSControl for selecting and display a single color value.
 
    Copyright (C) 1996 Free Software Foundation, Inc.
 
@@ -37,6 +37,9 @@
 
 {
   // Attributes
+  NSColor *the_color;
+  BOOL is_active;
+  BOOL is_bordered;
 }
 
 //

Source/NSColorList.m

@@ -1,7 +1,7 @@
 /* 
    NSColorList.m
 
-   Description...
+   Manage named lists of NSColors.
 
    Copyright (C) 1996 Free Software Foundation, Inc.
 
@@ -27,9 +27,27 @@
 */ 
 
 #include <gnustep/gui/NSColorList.h>
+#include <Foundation/NSNotification.h>
+#include <Foundation/NSLock.h>
+#include <Foundation/NSArchiver.h>
+#include <Foundation/NSException.h>
 
 // NSColorList notifications
-NSString *NSColorListChangedNotification;
+NSString *NSColorListChangedNotification = @"NSColorListChange";
+
+// NSColorList exceptions
+NSString *NSColorListNotEditableException = @"NSColorListNotEditable";
+
+// global variable
+static NSMutableArray *gnustep_available_color_lists;
+static NSLock *gnustep_color_list_lock;
+
+@interface NSColorList (GNUstepPrivate)
+
+- (void)setFileNameFromPath: (NSString *)path;
+- (NSDictionary *)colorListDictionary;
+
+@end
 
 @implementation NSColorList
 
@@ -42,6 +60,11 @@ NSString *NSColorListChangedNotification;
     {
       // Initial version
       [self setVersion:1];
+
+      // Initialize the global array of color lists
+      gnustep_available_color_lists = [NSMutableArray array];
+      // And its access lock
+      gnustep_color_list_lock = [[NSLock alloc] init];
     }
 }
 
@@ -50,7 +73,15 @@ NSString *NSColorListChangedNotification;
 //
 + (NSArray *)availableColorLists
 {
-  return nil;
+  NSArray *a;
+
+  // Serialize access to color list
+  [gnustep_color_list_lock lock];
+  a =  [[[NSArray alloc] initWithArray: gnustep_available_color_lists]
+	   autorelease];
+  [gnustep_color_list_lock unlock];
+
+  return a;
 }
 
 //
@@ -58,7 +89,26 @@ NSString *NSColorListChangedNotification;
 //
 + (NSColorList *)colorListNamed:(NSString *)name
 {
-  return nil;
+  id o, e;
+  BOOL found = NO;
+
+  // Serialize access to color list
+  [gnustep_color_list_lock lock];
+  e = [gnustep_available_color_lists objectEnumerator];
+  o = [e nextObject];
+  while ((o) && (!found))
+    {
+      if ([name compare: [o name]] == NSOrderedSame)
+	found = YES;
+      else
+	o = [e nextObject];
+    }
+  [gnustep_color_list_lock unlock];
+
+  if (found)
+    return o;
+  else
+    return nil;
 }
 
 //
@@ -69,13 +119,64 @@ NSString *NSColorListChangedNotification;
 //
 - (id)initWithName:(NSString *)name
 {
-  return nil;
+  [super init];
+
+  // Initialize instance variables
+  list_name = name;
+  [list_name retain];
+  color_list = [NSMutableDictionary dictionary];
+  [color_list retain];
+  color_list_keys = [NSMutableArray array];
+  [color_list_keys retain];
+  is_editable = YES;
+  file_name = @"";
+
+  // Add to global list of colors
+  [gnustep_color_list_lock lock];
+  [gnustep_available_color_lists addObject: self];
+  [gnustep_color_list_lock unlock];
+
+  return self;
 }
 
 - (id)initWithName:(NSString *)name
 	  fromFile:(NSString *)path
 {
-  return nil;
+  id cl;
+
+  [super init];
+
+  // Initialize instance variables
+  list_name = name;
+  [list_name retain];
+  [self setFileNameFromPath: path];
+
+  // Unarchive the color list
+  cl = [NSUnarchiver unarchiveObjectWithFile: file_name];
+
+  // Copy the color list elements to self
+  is_editable = [cl isEditable];
+  color_list = [NSMutableDictionary alloc];
+  [color_list initWithDictionary: [cl colorListDictionary]];
+  color_list_keys = [NSMutableArray alloc];
+  [color_list_keys initWithArray: [cl allKeys]];
+
+  [cl release];
+
+  // Add to global list of colors
+  [gnustep_color_list_lock lock];
+  [gnustep_available_color_lists addObject: self];
+  [gnustep_color_list_lock unlock];
+
+  return self;
+}
+
+- (void)dealloc
+{
+  [list_name release];
+  [color_list release];
+  [color_list_keys release];
+  [super dealloc];
 }
 
 //
@@ -83,7 +184,7 @@ NSString *NSColorListChangedNotification;
 //
 - (NSString *)name
 {
-  return nil;
+  return list_name;
 }
 
 //
@@ -91,32 +192,77 @@ NSString *NSColorListChangedNotification;
 //
 - (NSArray *)allKeys
 {
-  return nil;
+  return [[[NSArray alloc] initWithArray: color_list_keys]
+	     autorelease];
 }
 
 - (NSColor *)colorWithKey:(NSString *)key
 {
-  return nil;
+  return [color_list objectForKey: key];
 }
 
 - (void)insertColor:(NSColor *)color
 		key:(NSString *)key
-atIndex:(unsigned)location
-{}
+	    atIndex:(unsigned)location
+{
+  // Are we even editable?
+  if (!is_editable)
+    [NSException raise: NSColorListNotEditableException
+		 format: @"Color list cannot be edited\n"];
+
+  // add color
+  [color_list setObject: color forKey: key];
+  [color_list_keys removeObject: key];
+  [color_list_keys insertObject: key atIndex: location];
+
+  // post notification
+  [[NSNotificationCenter defaultCenter] 
+      postNotificationName: NSColorListChangedNotification
+      object: self];
+}
 
 - (void)removeColorWithKey:(NSString *)key
-{}
+{
+  // Are we even editable?
+  if (!is_editable)
+    [NSException raise: NSColorListNotEditableException
+		 format: @"Color list cannot be edited\n"];
+
+  [color_list removeObjectForKey: key];
+  [color_list_keys removeObject: key];
+
+  // post notification
+  [[NSNotificationCenter defaultCenter] 
+      postNotificationName: NSColorListChangedNotification
+      object: self];
+}
 
 - (void)setColor:(NSColor *)aColor
 	  forKey:(NSString *)key
-{}
+{
+  // Are we even editable?
+  if (!is_editable)
+    [NSException raise: NSColorListNotEditableException
+		 format: @"Color list cannot be edited\n"];
+
+  [color_list setObject: aColor forKey: key];
+
+  // Add to list if doesn't already exist
+  if (![color_list_keys containsObject: key])
+    [color_list_keys addObject: key];
+
+  // post notification
+  [[NSNotificationCenter defaultCenter] 
+      postNotificationName: NSColorListChangedNotification
+      object: self];
+}
 
 //
 // Editing
 //
 - (BOOL)isEditable
 {
-  return NO;
+  return is_editable;
 }
 
 //
@@ -124,11 +270,21 @@ atIndex:(unsigned)location
 //
 - (BOOL)writeToFile:(NSString *)path
 {
-  return NO;
+  [self setFileNameFromPath: path];
+
+  // Archive to the file
+  return [NSArchiver archiveRootObject: self toFile: file_name];
 }
 
 - (void)removeFile
-{}
+{
+  // xxx Tell NSWorkspace to remove the file
+
+  // Remove from global list of colors
+  [gnustep_color_list_lock lock];
+  [gnustep_available_color_lists removeObject: self];
+  [gnustep_color_list_lock unlock];
+}
 
 //
 // NSCoding protocol
@@ -136,13 +292,43 @@ atIndex:(unsigned)location
 - (void)encodeWithCoder:aCoder
 {
   [super encodeWithCoder:aCoder];
+  [aCoder encodeObject: list_name];
+  [aCoder encodeObject: color_list];
+  [aCoder encodeObject: color_list_keys];
+  [aCoder encodeValueOfObjCType:@encode(BOOL) at: &is_editable];
 }
 
 - initWithCoder:aDecoder
 {
   [super initWithCoder:aDecoder];
+  list_name = [aDecoder decodeObject];
+  color_list = [aDecoder decodeObject];
+  color_list_keys = [aDecoder decodeObject];
+  [aDecoder decodeValueOfObjCType:@encode(BOOL) at: &is_editable];
 
   return self;
 }
 
 @end
+
+@implementation NSColorList (GNUstepPrivate)
+
+- (void)setFileNameFromPath: (NSString *)path
+{
+  NSMutableString *s = [NSMutableString stringWithCString: ""];
+
+  // Construct filename
+  // xxx Need to determine if path already contains filename
+  [s appendString: path];
+  [s appendString: @"/"];
+  [s appendString: list_name];
+  [s appendString: @".clr"];
+  file_name = s;
+}
+
+- (NSDictionary *)colorListDictionary
+{
+  return color_list;
+}
+
+@end

Source/NSColorWell.m

@@ -1,7 +1,7 @@
 /* 
    NSColorWell.m
 
-   Description...
+   NSControl for selecting and display a single color value.
 
    Copyright (C) 1996 Free Software Foundation, Inc.
 
@@ -49,21 +49,33 @@
 //
 // Drawing
 //
+- (void)drawRect:(NSRect)rect
+{
+  // xxx Draw border
+
+  [self drawWellInside: rect];
+}
+
 - (void)drawWellInside:(NSRect)insideRect
-{}
+{
+}
 
 //
 // Activating 
 //
 - (void)activate:(BOOL)exclusive
-{}
+{
+  is_active = YES;
+}
 
 - (void)deactivate
-{}
+{
+  is_active = NO;
+}
 
 - (BOOL)isActive
 {
-  return NO;
+  return is_active;
 }
 
 //
@@ -71,25 +83,33 @@
 //
 - (NSColor *)color
 {
-  return nil;
+  return the_color;
 }
 
 - (void)setColor:(NSColor *)color
-{}
+{
+  the_color = color;
+}
 
 - (void)takeColorFrom:(id)sender
-{}
+{
+  if ([sender respondsToSelector:@selector(color)])
+    the_color = [sender color];
+}
 
 //
 // Managing Borders 
 //
 - (BOOL)isBordered
 {
-  return NO;
+  return is_bordered;
 }
 
 - (void)setBordered:(BOOL)bordered
-{}
+{
+  is_bordered = bordered;
+  [self display];
+}
 
 //
 // NSCoding protocol
@@ -97,11 +117,17 @@
 - (void)encodeWithCoder:aCoder
 {
   [super encodeWithCoder:aCoder];
+  [aCoder encodeObject: the_color];
+  [aCoder encodeValueOfObjCType:@encode(BOOL) at: &is_active];
+  [aCoder encodeValueOfObjCType:@encode(BOOL) at: &is_bordered];
 }
 
 - initWithCoder:aDecoder
 {
   [super initWithCoder:aDecoder];
+  the_color = [aDecoder decodeObject];
+  [aDecoder decodeValueOfObjCType:@encode(BOOL) at: &is_active];
+  [aDecoder decodeValueOfObjCType:@encode(BOOL) at: &is_bordered];
 
   return self;
 }

Source/NSSliderCell.m

@@ -137,21 +137,44 @@
 {
   double val_range,value;
 
-  max_value = aDouble;
+  // Swap values if new max is less than min
+  if (aDouble < min_value)
+    {
+      max_value = min_value;
+      min_value = aDouble;
+    }
+  else
+    max_value = aDouble;
+
   val_range = max_value - min_value;
   if (val_range != 0)
-    //Lowest position assumed to be 0
-    scale_factor = scroll_size/val_range; 
+    {
+      scale_factor = scroll_size/val_range; 
+      if (scale_factor != 0)
+	page_value = knob_thickness * (1/scale_factor);
+    }
 }
 
 - (void)setMinValue:(double)aDouble
 {
   double val_range,value;
 
-  min_value = aDouble;
+  // Swap values if new min is greater than max
+  if (aDouble > max_value)
+    {
+      min_value = max_value;
+      max_value = aDouble;
+    }
+  else
+    min_value = aDouble;
+
   val_range = max_value - min_value;
   if (val_range != 0)
-    scale_factor = scroll_size/val_range; 
+    {
+      scale_factor = scroll_size/val_range; 
+      if (scale_factor != 0)
+	page_value = knob_thickness * (1/scale_factor);
+    }
 }
 
 //
@@ -174,7 +197,21 @@
 
 - (void)setKnobThickness:(float)aFloat
 {
+  int old_scroll = scroll_size;
+  double val_range;
+
+  // Recalculate the scroll size
+  scroll_size = old_scroll + knob_thickness;
   knob_thickness = aFloat;
+  scroll_size -= knob_thickness;
+
+  val_range = max_value - min_value;
+  if (val_range != 0)
+    {
+      scale_factor = scroll_size/val_range; 
+      if (scale_factor != 0)
+	page_value = knob_thickness * (1/scale_factor);
+    }
 }
 
 - (void)setTitle:(NSString *)aString
@@ -269,8 +306,6 @@
   [aCoder encodeValueOfObjCType: "i" at: &scroll_size];
   [aCoder encodeValueOfObjCType: "i" at: &knob_thickness];
   [aCoder encodeValueOfObjCType: "d" at: &page_value];
-//  [aCoder encodeValuesOfObjCTypes: "dddiid", &max_value, &min_value,
-//	  &scale_factor, &scroll_size, &knob_thickness, &page_value];
   [aCoder encodeValueOfObjCType: @encode(BOOL) at: &is_vertical];
 }
 
@@ -284,8 +319,6 @@
   [aDecoder decodeValueOfObjCType: "i" at: &scroll_size];
   [aDecoder decodeValueOfObjCType: "i" at: &knob_thickness];
   [aDecoder decodeValueOfObjCType: "d" at: &page_value];
-//  [aDecoder decodeValuesOfObjCTypes: "dddiid", &max_value, &min_value,
-//	  &scale_factor, &scroll_size, &knob_thickness, &page_value];
   [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &is_vertical];
 
   return self;

Source/NSTextFieldCell.m

@@ -76,6 +76,7 @@
 	
   background_color = [NSColor whiteColor];
   text_color = [NSColor blackColor];
+  support = [NSFont systemFontOfSize:12];
   return self;
 }