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/*
* Copyright 2012 Alex Merry <alex.merry@kdemail.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#import "GraphEditorPanel.h"
#import "Application.h"
#import "GraphRenderer.h"
#import "HandTool.h"
#import "InputDelegate.h"
#import "TikzDocument.h"
#import "WidgetSurface.h"
@class GraphRenderer;
@class WidgetSurface;
/**
* Mostly just a multiplexer
*/
@interface GraphInputHandler : NSObject<InputDelegate> {
GraphEditorPanel *panel;
}
- (id) initForPanel:(GraphEditorPanel*)p;
@end
@implementation GraphEditorPanel
- (id) init {
return [self initWithDocument:nil];
}
- (id) initWithDocument:(TikzDocument*)document {
self = [super init];
if (self) {
surface = [[WidgetSurface alloc] init];
[surface setDefaultScale:50.0f];
[surface setKeepCentered:YES];
[surface setCanFocus:YES];
renderer = [[GraphRenderer alloc] initWithSurface:surface document:document];
inputHandler = [[GraphInputHandler alloc] initForPanel:self];
[surface setInputDelegate:inputHandler];
}
return self;
}
- (void) dealloc {
[renderer release];
[surface release];
[inputHandler release];
[super dealloc];
}
- (TikzDocument*) document {
return [renderer document];
}
- (void) setDocument:(TikzDocument*)doc {
[renderer setDocument:doc];
}
- (GtkWidget*) widget {
return [surface widget];
}
- (id<Tool>) activeTool {
return tool;
}
- (void) setActiveTool:(id<Tool>)t {
if (t == tool)
return;
[[[renderer document] pickSupport] deselectAllNodes];
[[[renderer document] pickSupport] deselectAllEdges];
BOOL hadOldTool = ([tool activeRenderer] == renderer);
id oldTool = tool;
tool = [t retain];
[oldTool release];
if (hadOldTool) {
[self grabTool];
}
}
- (BOOL) hasTool {
return [tool activeRenderer] == renderer;
}
- (void) grabTool {
if ([tool activeRenderer] != renderer) {
[[tool activeRenderer] setPostRenderer:nil];
[tool setActiveRenderer:renderer];
}
[renderer setPostRenderer:tool];
}
- (void) zoomInAboutPoint:(NSPoint)pos { [surface zoomInAboutPoint:pos]; }
- (void) zoomOutAboutPoint:(NSPoint)pos { [surface zoomOutAboutPoint:pos]; }
- (void) zoomIn { [surface zoomIn]; }
- (void) zoomOut { [surface zoomOut]; }
- (void) zoomReset { [surface zoomReset]; }
@end
@implementation GraphInputHandler
- (id) initForPanel:(GraphEditorPanel*)p {
self = [super init];
if (self) {
// NB: no retention!
panel = p;
}
return self;
}
- (id) init {
[self dealloc];
return nil;
}
// FIXME: use a local copy of HandTool to implement CTRL-dragging
- (void) mousePressAt:(NSPoint)pos withButton:(MouseButton)button andMask:(InputMask)mask {
[panel grabTool];
id<Tool> tool = [panel activeTool];
if ([tool respondsToSelector:@selector(mousePressAt:withButton:andMask:)]) {
[tool mousePressAt:pos withButton:button andMask:mask];
}
}
- (void) mouseDoubleClickAt:(NSPoint)pos withButton:(MouseButton)button andMask:(InputMask)mask {
[panel grabTool];
id<Tool> tool = [panel activeTool];
if ([tool respondsToSelector:@selector(mouseDoubleClickAt:withButton:andMask:)]) {
[tool mouseDoubleClickAt:pos withButton:button andMask:mask];
}
}
- (void) mouseReleaseAt:(NSPoint)pos withButton:(MouseButton)button andMask:(InputMask)mask {
if (![panel hasTool])
return;
id<Tool> tool = [panel activeTool];
if ([tool respondsToSelector:@selector(mouseReleaseAt:withButton:andMask:)]) {
[tool mouseReleaseAt:pos withButton:button andMask:mask];
}
}
- (void) mouseMoveTo:(NSPoint)pos withButtons:(MouseButton)buttons andMask:(InputMask)mask {
if (![panel hasTool])
return;
id<Tool> tool = [panel activeTool];
if ([tool respondsToSelector:@selector(mouseMoveTo:withButtons:andMask:)]) {
[tool mouseMoveTo:pos withButtons:buttons andMask:mask];
}
}
- (void) mouseScrolledAt:(NSPoint)pos inDirection:(ScrollDirection)dir withMask:(InputMask)mask {
id<Tool> tool = [panel activeTool];
if (mask == ControlMask) {
if (dir == ScrollUp) {
[panel zoomInAboutPoint:pos];
} else if (dir == ScrollDown) {
[panel zoomOutAboutPoint:pos];
}
} else if ([panel hasTool] && [tool respondsToSelector:@selector(mouseScrolledAt:inDirection:withMask:)]) {
[tool mouseScrolledAt:pos inDirection:dir withMask:mask];
}
}
- (void) keyPressed:(unsigned int)keyVal withMask:(InputMask)mask {
if (![app activateToolForKey:keyVal withMask:mask]) {
id<Tool> tool = [panel activeTool];
if ([panel hasTool] && [tool respondsToSelector:@selector(keyPressed:withMask:)]) {
[tool keyPressed:keyVal withMask:mask];
}
}
}
- (void) keyReleased:(unsigned int)keyVal withMask:(InputMask)mask {
if (![app activateToolForKey:keyVal withMask:mask]) {
id<Tool> tool = [panel activeTool];
if ([panel hasTool] && [tool respondsToSelector:@selector(keyReleased:withMask:)]) {
[tool keyReleased:keyVal withMask:mask];
}
}
}
@end
// vim:ft=objc:ts=8:et:sts=4:sw=4
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