core-code
6b22a26138
git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@1126 e016b1c5-ed68-44aa-a2f7-31cac88cffde
121 lines
3.1 KiB
Objective-C
Executable File
121 lines
3.1 KiB
Objective-C
Executable File
#import "ConsoleView.h"
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#define MAX_LINES 200
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#define LINE_WIDTH 500
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#define LINE_HEIGHT 12
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/*
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* This VScroller sends a scrollToEnd message to the console based on whether you hit page/line down or not
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*/
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@interface VScroller : NSScroller {
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}
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@end
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@implementation VScroller
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- (NSScrollerPart)hitPart {
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ConsoleView *view = (ConsoleView *)[(NSScrollView*)[self superview] documentView];
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NSScrollerPart part = [super hitPart];
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[view scrollToEnd:((part == NSScrollerIncrementPage) || (part == NSScrollerIncrementLine))];
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return part;
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}
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@end
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@implementation ConsoleView
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- (id)initWithFrame:(NSRect)frame {
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self = [super initWithFrame:frame];
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if (self) {
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array = [[[NSMutableArray alloc] init] retain];
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attr = [[NSDictionary dictionaryWithObjectsAndKeys:
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[NSFont userFontOfSize:(LINE_HEIGHT-2)], NSFontAttributeName,
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[NSColor colorWithCalibratedRed:0.2 green:0.8 blue:0.2 alpha:1.0], NSForegroundColorAttributeName,
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nil] retain];
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}
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return self;
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}
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- (void)awakeFromNib {
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[self scrollToEnd:YES];
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NSScroller *vscroll = [[VScroller alloc] init];
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[vscroll setControlSize:[[[self enclosingScrollView] verticalScroller] controlSize]];
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[[self enclosingScrollView] setVerticalScroller:vscroll];
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}
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- (void)dealloc {
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[attr release];
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[array release];
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[super dealloc];
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}
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- (BOOL)isFlipped {
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return YES;
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}
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- (void)drawRect:(NSRect)rect {
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//draw the visible lines only
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int startLine = rect.origin.y/LINE_HEIGHT;
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int endLine = 1 + (rect.origin.y+rect.size.height)/LINE_HEIGHT;
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if(startLine < 0) startLine = 0;
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if(endLine > [array count]) endLine = [array count];
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int i;
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for(i = startLine; i < endLine; i++) {
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NSString *str = [array objectAtIndex:i];
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[str drawAtPoint:NSMakePoint(2, i * LINE_HEIGHT) withAttributes:attr];
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}
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}
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- (void)scrollToEnd:(BOOL)enable {
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endScroll = enable;
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}
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- (void)appendLine:(NSString*)line {
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BOOL chop = [array count] > MAX_LINES;
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if(chop) {
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[array removeObjectAtIndex:0]; // limit the number of lines
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}
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[array addObject:line];
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int i = [array count];
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[self setFrame:NSMakeRect(0, 0, LINE_WIDTH, i*LINE_HEIGHT)]; // increase the frame size
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NSRect rect = NSMakeRect(0, (i-1)*LINE_HEIGHT, LINE_WIDTH, LINE_HEIGHT);
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if(endScroll) {
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// Scroll to the line just added
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if([self scrollRectToVisible:rect]) return;
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} else {
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// Lock the scrolling on the first visible line
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i = [self visibleRect].origin.y/LINE_HEIGHT;
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if(!chop) i++;
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if(i < 0) i = 0;
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if(i > [array count]) i = [array count];
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NSRect vrect = NSMakeRect(0, (i-1)*LINE_HEIGHT, LINE_WIDTH, LINE_HEIGHT);
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if([self scrollRectToVisible:vrect]) return;
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}
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if(chop)
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[self setNeedsDisplay:YES];
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else
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[self setNeedsDisplayInRect:rect];
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}
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- (void)appendText:(NSString*)text {
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NSArray *lines = [text componentsSeparatedByString:@"\n"]; //@TODO assumes we get given lines rather than fragments...
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int i;
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for(i = 0; i < [lines count]; i++) {
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NSString *line = [lines objectAtIndex:i];
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if([line length] == 0) continue; //skip empty
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[self appendLine:line];
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}
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}
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- (BOOL)acceptsFirstResponder {
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return YES;
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}
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- (IBAction)delete:(id)sender {
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[array removeAllObjects];
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[self setFrame:NSMakeRect(0,0,0,0)];
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}
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@end
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