74 lines
1.4 KiB
Mathematica
74 lines
1.4 KiB
Mathematica
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#import <Carbon/Carbon.h>
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#import "GBTerminalTextFieldCell.h"
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@interface GBTerminalTextView : NSTextView
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@end
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@implementation GBTerminalTextFieldCell
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{
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GBTerminalTextView *field_editor;
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}
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- (NSTextView *)fieldEditorForView:(NSView *)controlView
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{
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if (field_editor) {
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return field_editor;
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}
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field_editor = [[GBTerminalTextView alloc] init];
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[field_editor setFieldEditor:YES];
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return field_editor;
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}
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@end
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@implementation GBTerminalTextView
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{
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NSMutableOrderedSet *lines;
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NSUInteger current_line;
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}
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- (instancetype)init
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{
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self = [super init];
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if (!self) {
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return NULL;
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}
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lines = [[NSMutableOrderedSet alloc] init];
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return self;
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}
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- (void)moveUp:(id)sender
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{
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if (current_line != 0) {
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current_line--;
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[self setString:[lines objectAtIndex:current_line]];
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}
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}
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- (void)moveDown:(id)sender
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{
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if (current_line == [lines count]) {
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return;
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}
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current_line++;
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if (current_line == [lines count]) {
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[self setString:@""];
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}
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else {
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[self setString:[lines objectAtIndex:current_line]];
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}
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}
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-(void) insertNewline:(id)sender
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{
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if ([self.string length]) {
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NSString *string = [self.string copy];
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[lines removeObject:string];
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[lines addObject:string];
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}
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[super insertNewline:sender];
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current_line = [lines count];
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}
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@end
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