/* NSBox.m Simple box view that can display a border and title Copyright (C) 1996 Free Software Foundation, Inc. Author: Scott Christley Date: 1996 This file is part of the GNUstep GUI Library. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #include #include @interface NSBox (Private) - (NSRect) calcSizes; @end @implementation NSBox // // Class methods // + (void) initialize { if (self == [NSBox class]) { // Initial version [self setVersion: 1]; } } // // Instance methods // - (id) initWithFrame: (NSRect)frameRect { [super initWithFrame: frameRect]; cell = [[NSTextFieldCell alloc] initTextCell: @"Title"]; [cell setAlignment: NSCenterTextAlignment]; [cell setBordered: NO]; [cell setEditable: NO]; [cell setDrawsBackground: YES]; [cell setBackgroundColor: [window backgroundColor]]; offsets.width = 5; offsets.height = 5; border_rect = bounds; border_type = NSLineBorder; title_position = NSAtTop; title_rect = NSZeroRect; content_view = [NSView new]; [super addSubview: content_view]; [content_view release]; return self; } - (void) dealloc { if (cell) [cell release]; [super dealloc]; } // // Getting and Modifying the Border and Title // - (NSRect) borderRect { return border_rect; } - (NSBorderType) borderType { return border_type; } - (void) setBorderType: (NSBorderType)aType { if (border_type != aType) { border_type = aType; [content_view setFrame: [self calcSizes]]; [self setNeedsDisplay: YES]; } } - (void) setTitle: (NSString *)aString { [cell setStringValue: aString]; [content_view setFrame: [self calcSizes]]; [self setNeedsDisplay: YES]; } - (void) setTitleFont: (NSFont *)fontObj { [cell setFont: fontObj]; [content_view setFrame: [self calcSizes]]; [self setNeedsDisplay: YES]; } - (void) setTitlePosition: (NSTitlePosition)aPosition { if (title_position != aPosition) { title_position = aPosition; [content_view setFrame: [self calcSizes]]; [self setNeedsDisplay: YES]; } } - (NSString*) title { return [cell stringValue]; } - (id) titleCell { return cell; } - (NSFont*) titleFont { return [cell font]; } - (NSTitlePosition) titlePosition { return title_position; } - (NSRect) titleRect { return title_rect; } // // Setting and Placing the Content View // - (id) contentView { return content_view; } - (NSSize) contentViewMargins { return offsets; } - (void) setContentView: (NSView*)aView { if (aView) { [super replaceSubview: content_view with: aView]; content_view = aView; [content_view setFrame: [self calcSizes]]; } } - (void) setContentViewMargins: (NSSize)offsetSize { NSAssert(offsetSize.width >= 0 && offsetSize.height >= 0, @"illegal margins supplied"); offsets = offsetSize; [content_view setFrame: [self calcSizes]]; [self setNeedsDisplay: YES]; } // // Resizing the Box // - (void) setFrameFromContentFrame: (NSRect)contentFrame { // First calc the sizes to see how much we are off by NSRect r = [self calcSizes]; NSRect f = [self frame]; NSAssert(contentFrame.size.width >= 0 && contentFrame.size.height >= 0, @"illegal content frame supplied"); // Add the difference to the frame f.size.width = f.size.width + (contentFrame.size.width - r.size.width); f.size.height = f.size.height + (contentFrame.size.height - r.size.height); [self setFrame: f]; } - (void) sizeToFit { NSRect r = NSZeroRect; id o, e = [[content_view subviews] objectEnumerator]; // Loop through subviews and calculate rect to encompass all while ((o = [e nextObject])) { NSRect f = [o frame]; if (f.origin.x < r.origin.x) r.origin.x = f.origin.x; if (f.origin.y < f.origin.y) r.origin.y = f.origin.y; if ((f.origin.x + f.size.width) > (r.origin.x + r.size.width)) r.size.width = (f.origin.x + f.size.width) - r.origin.x; if ((f.origin.y + f.size.height) > (r.origin.y + r.size.height)) r.size.height = (f.origin.y + f.size.height) - r.origin.y; } [self setFrameFromContentFrame: r]; } - (void) resizeWithOldSuperviewSize: (NSSize)oldSize { [super resizeWithOldSuperviewSize: oldSize]; [content_view setFrame: [self calcSizes]]; } // // Managing the NSView Hierarchy // - (void) addSubview: (NSView*)aView { [content_view addSubview: aView]; } - (void) addSubview: (NSView*)aView positioned: (NSWindowOrderingMode)place relativeTo: (NSView*)otherView { [content_view addSubview: aView positioned: place relativeTo: otherView]; } - (void) replaceSubview: (NSView *)aView with: (NSView*) newView { [content_view replaceSubview: aView with: newView]; } // // Displaying // - (void) drawRect: (NSRect)rect { rect = NSIntersectionRect(bounds, rect); // Fill inside [[window backgroundColor] set]; NSRectFill(rect); // Draw border switch (border_type) { case NSNoBorder: break; case NSLineBorder: NSFrameRect(border_rect); break; case NSBezelBorder: NSDrawGrayBezel(border_rect, rect); break; case NSGrooveBorder: NSDrawGroove(border_rect, rect); break; } // Draw title switch (title_position) { case NSNoTitle: // Nothing to do break; case NSAboveTop: case NSAtTop: case NSBelowTop: case NSAboveBottom: case NSAtBottom: case NSBelowBottom: [cell setBackgroundColor: [window backgroundColor]]; [cell drawWithFrame: title_rect inView: self]; } } // // NSCoding protocol // - (void) encodeWithCoder: (NSCoder*)aCoder { [super encodeWithCoder: aCoder]; [aCoder encodeObject: cell]; [aCoder encodeObject: content_view]; [aCoder encodeSize: offsets]; [aCoder encodeRect: border_rect]; [aCoder encodeRect: title_rect]; [aCoder encodeValueOfObjCType: @encode(NSBorderType) at: &border_type]; [aCoder encodeValueOfObjCType: @encode(NSTitlePosition) at: &title_position]; } - (id) initWithCoder: (NSCoder*)aDecoder { [super initWithCoder: aDecoder]; [aDecoder decodeValueOfObjCType: @encode(id) at: &cell]; content_view = [aDecoder decodeObject]; offsets = [aDecoder decodeSize]; border_rect = [aDecoder decodeRect]; title_rect = [aDecoder decodeRect]; [aDecoder decodeValueOfObjCType: @encode(NSBorderType) at: &border_type]; [aDecoder decodeValueOfObjCType: @encode(NSTitlePosition) at: &title_position]; return self; } @end @implementation NSBox (Private) - (NSRect)calcSizes { NSRect r = NSZeroRect; switch (title_position) { case NSNoTitle: { NSSize borderSize = [NSCell sizeForBorderType: border_type]; border_rect = bounds; title_rect = NSZeroRect; // Add the offsets to the border rect r.origin.x = offsets.width + borderSize.width; r.origin.y = offsets.height + borderSize.height; r.size.width = border_rect.size.width - (2 * offsets.width) - (2 * borderSize.width); r.size.height = border_rect.size.height - (2 * offsets.height) - (2 * borderSize.height); break; } case NSAboveTop: { NSSize titleSize = [cell cellSize]; NSSize borderSize = [NSCell sizeForBorderType: border_type]; float c; // Add spacer around title titleSize.width += 1; titleSize.height += 1; // Adjust border rect by title cell border_rect = bounds; border_rect.size.height -= titleSize.height + borderSize.height; // Add the offsets to the border rect r.origin.x = border_rect.origin.x + offsets.width + borderSize.width; r.origin.y = border_rect.origin.y + offsets.height + borderSize.height; r.size.width = border_rect.size.width - (2 * offsets.width) - (2 * borderSize.width); r.size.height = border_rect.size.height - (2 * offsets.height) - (2 * borderSize.height); // center the title cell c = (bounds.size.width - titleSize.width) / 2; if (c < 0) c = 0; title_rect.origin.x = bounds.origin.x + c; title_rect.origin.y = bounds.origin.y + border_rect.size.height + borderSize.height; title_rect.size = titleSize; break; } case NSBelowTop: { NSSize titleSize = [cell cellSize]; NSSize borderSize = [NSCell sizeForBorderType: border_type]; float c; // Add spacer around title titleSize.width += 1; titleSize.height += 1; // Adjust border rect by title cell border_rect = bounds; // Add the offsets to the border rect r.origin.x = border_rect.origin.x + offsets.width + borderSize.width; r.origin.y = border_rect.origin.y + offsets.height + borderSize.height; r.size.width = border_rect.size.width - (2 * offsets.width) - (2 * borderSize.width); r.size.height = border_rect.size.height - (2 * offsets.height) - (2 * borderSize.height); // Adjust by the title size r.size.height -= titleSize.height + borderSize.height; // center the title cell c = (border_rect.size.width - titleSize.width) / 2; if (c < 0) c = 0; title_rect.origin.x = border_rect.origin.x + c; title_rect.origin.y = border_rect.origin.y + border_rect.size.height - titleSize.height - borderSize.height; title_rect.size = titleSize; break; } case NSAtTop: { NSSize titleSize = [cell cellSize]; NSSize borderSize = [NSCell sizeForBorderType: border_type]; float c; // Add spacer around title titleSize.width += 1; titleSize.height += 1; border_rect = bounds; // Adjust by the title size border_rect.size.height -= titleSize.height / 2; // Add the offsets to the border rect r.origin.x = border_rect.origin.x + offsets.width + borderSize.width; r.origin.y = border_rect.origin.y + offsets.height + borderSize.height; r.size.width = border_rect.size.width - (2 * offsets.width) - (2 * borderSize.width); r.size.height = border_rect.size.height - (2 * offsets.height) - (2 * borderSize.height); // Adjust by the title size r.size.height -= (titleSize.height / 2) + borderSize.height; // center the title cell c = (border_rect.size.width - titleSize.width) / 2; if (c < 0) c = 0; title_rect.origin.x = border_rect.origin.x + c; title_rect.origin.y = border_rect.origin.y + border_rect.size.height - (titleSize.height / 2); title_rect.size = titleSize; break; } case NSAtBottom: { NSSize titleSize = [cell cellSize]; NSSize borderSize = [NSCell sizeForBorderType: border_type]; float c; // Add spacer around title titleSize.width += 1; titleSize.height += 1; border_rect = bounds; // Adjust by the title size border_rect.origin.y += titleSize.height / 2; border_rect.size.height -= titleSize.height / 2; // Add the offsets to the border rect r.origin.x = border_rect.origin.x + offsets.width + borderSize.width; r.origin.y = border_rect.origin.y + offsets.height + borderSize.height; r.size.width = border_rect.size.width - (2 * offsets.width) - (2 * borderSize.width); r.size.height = border_rect.size.height - (2 * offsets.height) - (2 * borderSize.height); // Adjust by the title size r.origin.y += (titleSize.height / 2) + borderSize.height; r.size.height -= (titleSize.height / 2) + borderSize.height; // center the title cell c = (border_rect.size.width - titleSize.width) / 2; if (c < 0) c = 0; title_rect.origin.x = c; title_rect.origin.y = 0; title_rect.size = titleSize; break; } case NSBelowBottom: { NSSize titleSize = [cell cellSize]; NSSize borderSize = [NSCell sizeForBorderType: border_type]; float c; // Add spacer around title titleSize.width += 1; titleSize.height += 1; // Adjust by the title border_rect = bounds; border_rect.origin.y += titleSize.height + borderSize.height; border_rect.size.height -= titleSize.height + borderSize.height; // Add the offsets to the border rect r.origin.x = border_rect.origin.x + offsets.width + borderSize.width; r.origin.y = border_rect.origin.y + offsets.height + borderSize.height; r.size.width = border_rect.size.width - (2 * offsets.width) - (2 * borderSize.width); r.size.height = border_rect.size.height - (2 * offsets.height) - (2 * borderSize.height); // center the title cell c = (border_rect.size.width - titleSize.width) / 2; if (c < 0) c = 0; title_rect.origin.x = c; title_rect.origin.y = 0; title_rect.size = titleSize; break; } case NSAboveBottom: { NSSize titleSize = [cell cellSize]; NSSize borderSize = [NSCell sizeForBorderType: border_type]; float c; // Add spacer around title titleSize.width += 1; titleSize.height += 1; border_rect = bounds; // Add the offsets to the border rect r.origin.x = border_rect.origin.x + offsets.width + borderSize.width; r.origin.y = border_rect.origin.y + offsets.height + borderSize.height; r.size.width = border_rect.size.width - (2 * offsets.width) - (2 * borderSize.width); r.size.height = border_rect.size.height - (2 * offsets.height) - (2 * borderSize.height); // Adjust by the title size r.origin.y += titleSize.height + borderSize.height; r.size.height -= titleSize.height + borderSize.height; // center the title cell c = (border_rect.size.width - titleSize.width) / 2; if (c < 0) c = 0; title_rect.origin.x = border_rect.origin.x + c; title_rect.origin.y = border_rect.origin.y + borderSize.height; title_rect.size = titleSize; break; } } if (r.size.width < 0) r.size.width = 0; if (r.size.height < 0) r.size.height = 0; return r; } @end