mirror of
https://github.com/gnustep/libs-gui.git
synced 2025-05-30 01:50:38 +00:00
Clarify comments about user attribute changing now that I've figured out a way for it to work. Rewrite the actions to match.
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@15852 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Alexander Malmberg
parent
5d36c3e89a
commit
94ecd621eb
3 changed files with 227 additions and 163 deletions
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@ -66,6 +66,23 @@ All actions from NSResponder that make sense for a text view should be
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implemented here, but this is _not_ the place to add new actions.
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When changing attributes, the range returned by
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rangeForUserCharacterAttributeChange or rangeForUserParagraphAttributeChange
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should be used. If the location is NSNotFound, nothing should be done (in
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particular, the typing attributes should _not_ be changed). Otherwise,
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-shouldChangeTextInRange:replacementString: should be called, and if it
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returns YES, the attributes of the range and the typing attributes should be
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changed, and -didChangeText should be called.
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In a non-rich-text text view, the typing attributes _must_always_ hold the
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attributes of the text. Thus, the typing attributes muse always be changed
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in the same way that the attributes of the text are changed.
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(TODO: Will need to look over methods that deal with attributes to make
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sure this holds.)
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Not all user actions are here. Exceptions:
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-toggleRuler:
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@ -109,6 +126,10 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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-(void) _illegalMovement: (int)textMovement;
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-(void) _changeAttribute: (NSString *)name
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inRange: (NSRange)r
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using: (id (*)(id))func;
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@end
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@ -146,69 +167,177 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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return;
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}
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-(void) _changeAttribute: (NSString *)name
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inRange: (NSRange)r
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using: (id (*)(id))func
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{
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unsigned int i;
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NSRange e, r2;
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id current, new;
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if (![self shouldChangeTextInRange: r replacementString: nil])
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return;
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[_textStorage beginEditing];
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for (i = r.location; i < NSMaxRange(r); )
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{
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current = [_textStorage attribute: name
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atIndex: i
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effectiveRange: &e];
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r2 = NSMakeRange(i, NSMaxRange(e) - i);
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r2 = NSIntersectionRange(r2, r);
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i = NSMaxRange(e);
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new = func(current);
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if (new != current)
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{
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if (!new)
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{
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[_textStorage removeAttribute: name
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range: r2];
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}
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else
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{
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[_textStorage addAttribute: name
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value: new
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range: r2];
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}
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}
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}
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[_textStorage endEditing];
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current = [_layoutManager->_typingAttributes objectForKey: name];
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new = func(current);
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if (new != current)
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{
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if (!new)
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{
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[_layoutManager->_typingAttributes removeObjectForKey: name];
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}
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else
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{
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[_layoutManager->_typingAttributes setObject: new forKey: name];
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}
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}
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[self didChangeText];
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}
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@end
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@implementation NSTextView (user_actions)
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/* Helpers used with _changeAttribute:inRange:using:. */
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static NSNumber *int_minus_one(NSNumber *cur)
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{
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int value;
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if (cur)
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value = [cur intValue] - 1;
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else
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value = -1;
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if (value)
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return [NSNumber numberWithInt: value];
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else
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return nil;
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}
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static NSNumber *int_plus_one(NSNumber *cur)
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{
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int value;
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if (cur)
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value = [cur intValue] + 1;
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else
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value = 1;
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if (value)
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return [NSNumber numberWithInt: value];
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else
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return nil;
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}
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static NSNumber *float_minus_one(NSNumber *cur)
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{
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float value;
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if (cur)
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value = [cur floatValue] - 1;
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else
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value = -1;
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if (value)
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return [NSNumber numberWithFloat: value];
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else
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return nil;
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}
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static NSNumber *float_plus_one(NSNumber *cur)
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{
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int value;
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if (cur)
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value = [cur floatValue] + 1;
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else
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value = 1;
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if (value)
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return [NSNumber numberWithFloat: value];
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else
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return nil;
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}
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-(void) subscript: (id)sender
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{
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NSNumber *value = [_layoutManager->_typingAttributes
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objectForKey: NSSuperscriptAttributeName];
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int sValue;
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NSRange aRange = [self rangeForUserCharacterAttributeChange];
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NSRange r = [self rangeForUserCharacterAttributeChange];
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if (aRange.location == NSNotFound)
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if (r.location == NSNotFound)
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return;
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if (aRange.length)
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{
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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[_textStorage subscriptRange: aRange];
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[_textStorage endEditing];
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[self didChangeText];
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}
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// Set the typing attributes
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if (value != nil)
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sValue = [value intValue] - 1;
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else
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sValue = -1;
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[_layoutManager->_typingAttributes setObject: [NSNumber numberWithInt: sValue]
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forKey: NSSuperscriptAttributeName];
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[self _changeAttribute: NSSuperscriptAttributeName
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inRange: r
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using: int_minus_one];
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}
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-(void) superscript: (id)sender
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{
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NSNumber *value = [_layoutManager->_typingAttributes
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objectForKey: NSSuperscriptAttributeName];
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int sValue;
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NSRange aRange = [self rangeForUserCharacterAttributeChange];
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NSRange r = [self rangeForUserCharacterAttributeChange];
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if (aRange.location == NSNotFound)
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if (r.location == NSNotFound)
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return;
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if (aRange.length)
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{
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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[_textStorage superscriptRange: aRange];
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[_textStorage endEditing];
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[self didChangeText];
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}
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[self _changeAttribute: NSSuperscriptAttributeName
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inRange: r
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using: int_plus_one];
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}
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// Set the typing attributes
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if (value != nil)
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sValue = [value intValue] + 1;
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else
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sValue = 1;
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[_layoutManager->_typingAttributes setObject: [NSNumber numberWithInt: sValue]
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forKey: NSSuperscriptAttributeName];
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-(void) lowerBaseline: (id)sender
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{
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NSRange r = [self rangeForUserCharacterAttributeChange];
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if (r.location == NSNotFound)
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return;
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[self _changeAttribute: NSSuperscriptAttributeName
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inRange: r
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using: float_plus_one];
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}
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-(void) raiseBaseline: (id)sender
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{
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NSRange r = [self rangeForUserCharacterAttributeChange];
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if (r.location == NSNotFound)
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return;
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[self _changeAttribute: NSBaselineOffsetAttributeName
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inRange: r
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using: float_minus_one];
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}
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-(void) unscript: (id)sender
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@ -218,21 +347,27 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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if (aRange.location == NSNotFound)
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return;
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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if (aRange.length)
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{
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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[_textStorage unscriptRange: aRange];
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[_textStorage removeAttribute: NSSuperscriptAttributeName
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range: aRange];
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[_textStorage removeAttribute: NSBaselineOffsetAttributeName
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range: aRange];
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[_textStorage endEditing];
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[self didChangeText];
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}
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// Set the typing attributes
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[_layoutManager->_typingAttributes removeObjectForKey: NSSuperscriptAttributeName];
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[_layoutManager->_typingAttributes removeObjectForKey: NSBaselineOffsetAttributeName];
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[self didChangeText];
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}
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-(void) underline: (id)sender
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{
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BOOL doUnderline = YES;
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@ -264,81 +399,20 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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forKey: NSUnderlineStyleAttributeName];
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}
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-(void) useStandardKerning: (id)sender
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{
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// rekern for selected range if rich text, else rekern entire document.
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NSRange aRange = [self rangeForUserCharacterAttributeChange];
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if (aRange.location == NSNotFound)
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return;
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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[_textStorage removeAttribute: NSKernAttributeName
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range: aRange];
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[_textStorage endEditing];
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[self didChangeText];
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}
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-(void) lowerBaseline: (id)sender
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{
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id value;
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float sValue;
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NSRange effRange;
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NSRange aRange = [self rangeForUserCharacterAttributeChange];
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if (aRange.location == NSNotFound)
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return;
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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// We take the value form the first character and use it for the whole range
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value = [_textStorage attribute: NSBaselineOffsetAttributeName
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atIndex: aRange.location
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effectiveRange: &effRange];
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if (value != nil)
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sValue = [value floatValue] + 1.0;
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else
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sValue = 1.0;
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[_textStorage addAttribute: NSBaselineOffsetAttributeName
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value: [NSNumber numberWithFloat: sValue]
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range: aRange];
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}
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-(void) raiseBaseline: (id)sender
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{
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id value;
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float sValue;
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NSRange effRange;
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NSRange aRange = [self rangeForUserCharacterAttributeChange];
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if (aRange.location == NSNotFound)
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return;
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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// We take the value form the first character and use it for the whole range
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value = [_textStorage attribute: NSBaselineOffsetAttributeName
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atIndex: aRange.location
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effectiveRange: &effRange];
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if (value != nil)
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sValue = [value floatValue] - 1.0;
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else
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sValue = -1.0;
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[_textStorage addAttribute: NSBaselineOffsetAttributeName
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value: [NSNumber numberWithFloat: sValue]
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range: aRange];
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[_textStorage endEditing];
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[_layoutManager->_typingAttributes removeObjectForKey: NSKernAttributeName];
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[self didChangeText];
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}
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@ -348,54 +422,40 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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if (aRange.location == NSNotFound)
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return;
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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[_textStorage addAttribute: NSKernAttributeName
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value: [NSNumber numberWithFloat: 0.0]
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range: aRange];
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[_textStorage endEditing];
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[_layoutManager->_typingAttributes setObject: [NSNumber numberWithFloat: 0.0]
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forKey: NSKernAttributeName];
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[self didChangeText];
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}
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-(void) loosenKerning: (id)sender
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{
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NSRange aRange = [self rangeForUserCharacterAttributeChange];
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NSRange r = [self rangeForUserCharacterAttributeChange];
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if (aRange.location == NSNotFound)
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if (r.location == NSNotFound)
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return;
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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// FIXME: Should use the current kerning and work relative to point size
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[_textStorage addAttribute: NSKernAttributeName
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value: [NSNumber numberWithFloat: 1.0]
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range: aRange];
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[_textStorage endEditing];
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[self didChangeText];
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[self _changeAttribute: NSKernAttributeName
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inRange: r
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using: float_plus_one];
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}
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-(void) tightenKerning: (id)sender
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{
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NSRange aRange = [self rangeForUserCharacterAttributeChange];
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NSRange r = [self rangeForUserCharacterAttributeChange];
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if (aRange.location == NSNotFound)
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if (r.location == NSNotFound)
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return;
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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// FIXME: Should use the current kerning and work relative to point size
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[_textStorage addAttribute: NSKernAttributeName
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value: [NSNumber numberWithFloat: -1.0]
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range: aRange];
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[_textStorage endEditing];
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[self didChangeText];
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[self _changeAttribute: NSKernAttributeName
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inRange: r
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using: float_minus_one];
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}
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-(void) useStandardLigatures: (id)sender
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@ -408,11 +468,11 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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[_textStorage addAttribute: NSLigatureAttributeName
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value: [NSNumber numberWithInt: 1]
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range: aRange];
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[_textStorage endEditing];
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[_layoutManager->_typingAttributes setObject: [NSNumber numberWithInt: 1]
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forKey: NSLigatureAttributeName];
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[self didChangeText];
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}
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@ -426,11 +486,10 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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[_textStorage addAttribute: NSLigatureAttributeName
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value: [NSNumber numberWithInt: 0]
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[_textStorage removeAttribute: NSLigatureAttributeName
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range: aRange];
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[_textStorage endEditing];
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[_layoutManager->_typingAttributes removeObjectForKey: NSLigatureAttributeName];
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[self didChangeText];
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}
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@ -444,11 +503,11 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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if (![self shouldChangeTextInRange: aRange
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replacementString: nil])
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return;
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[_textStorage beginEditing];
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[_textStorage addAttribute: NSLigatureAttributeName
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value: [NSNumber numberWithInt: 2]
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range: aRange];
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[_textStorage endEditing];
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[_layoutManager->_typingAttributes setObject: [NSNumber numberWithInt: 2]
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forKey: NSLigatureAttributeName];
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[self didChangeText];
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}
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@ -459,6 +518,7 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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"toggleTraditionalCharacterShape:", "NSTextView");
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}
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-(void) insertNewline: (id)sender
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{
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if (_tf.is_field_editor)
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@ -492,6 +552,7 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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//[self insertText: @"\t"];
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}
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-(void) deleteForward: (id)sender
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{
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NSRange range = [self rangeForUserTextChange];
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@ -577,6 +638,7 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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[self setSelectedRange: NSMakeRange (range.location, 0)];
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}
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-(void) moveUp: (id)sender
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{
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/* float originalInsertionPoint;
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|
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@ -1109,6 +1171,7 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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#endif
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}
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-(void) scrollLineDown: (id)sender
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{
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// TODO
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|
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@ -1146,7 +1209,8 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
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{
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NSRange aRange;
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NSRect ignored;
|
||||
|
||||
|
||||
/* TODO: broken. assumes glyph==character */
|
||||
ignored = [_layoutManager lineFragmentRectForGlyphAtIndex:
|
||||
_layoutManager->_selected_range.location
|
||||
effectiveRange: &aRange];
|
||||
|
|
@ -1155,6 +1219,7 @@ send -shouldChangeTextInRange:replacementString: or -didChangeText.
|
|||
}
|
||||
}
|
||||
|
||||
|
||||
/* The following method is bound to 'Control-t', and must work like
|
||||
* pressing 'Control-t' inside Emacs. For example, say that I type
|
||||
* 'Nicoal' in a NSTextView. Then, I press 'Control-t'. This should
|
||||
|
|
@ -1202,6 +1267,7 @@ insertion point. (see also: miswart)
|
|||
}
|
||||
}
|
||||
|
||||
|
||||
-(void) delete: (id)sender
|
||||
{
|
||||
[self deleteForward: sender];
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue