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Diffstat (limited to 'tikzit/src/gtk/CreateEdgeTool.m')
| -rw-r--r-- | tikzit/src/gtk/CreateEdgeTool.m | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/tikzit/src/gtk/CreateEdgeTool.m b/tikzit/src/gtk/CreateEdgeTool.m new file mode 100644 index 0000000..e34e627 --- /dev/null +++ b/tikzit/src/gtk/CreateEdgeTool.m @@ -0,0 +1,203 @@ +/* + * Copyright 2011-2012 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 "CreateEdgeTool.h" + +#import "Configuration.h" +#import "EdgeStyleSelector.h" +#import "EdgeStylesModel.h" +#import "GraphRenderer.h" +#import "TikzDocument.h" +#import "tzstockitems.h" + +@implementation CreateEdgeTool +- (NSString*) name { return @"Create Edge"; } +- (const gchar*) stockId { return TIKZIT_STOCK_CREATE_EDGE; } +- (NSString*) helpText { return @"Create new edges"; } +- (NSString*) shortcut { return @"e"; } +@synthesize activeRenderer=renderer; +@synthesize configurationWidget=configWidget; + ++ (id) toolWithStyleManager:(StyleManager*)sm { + return [[[self alloc] initWithStyleManager:sm] autorelease]; +} + ++ (id) toolWithEdgeStylesModel:(EdgeStylesModel*)esm { + return [[[self alloc] initWithEdgeStylesModel:esm] autorelease]; +} + +- (id) init { + [self release]; + return nil; +} + +- (id) initWithStyleManager:(StyleManager*)sm { + return [self initWithEdgeStylesModel:[EdgeStylesModel modelWithStyleManager:sm]]; +} + +- (id) initWithEdgeStylesModel:(EdgeStylesModel*)esm { + self = [super init]; + + if (self) { + stylePicker = [[EdgeStyleSelector alloc] initWithModel:esm]; + + configWidget = gtk_vbox_new (FALSE, 0); + g_object_ref_sink (configWidget); + + GtkWidget *label = gtk_label_new ("Edge style:"); + gtk_widget_show (label); + gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5); + gtk_box_pack_start (GTK_BOX (configWidget), + label, + FALSE, + FALSE, + 0); + + GtkWidget *selWindow = gtk_scrolled_window_new (NULL, NULL); + gtk_widget_show (selWindow); + gtk_container_add (GTK_CONTAINER (selWindow), + [stylePicker widget]); + gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (selWindow), + GTK_POLICY_NEVER, + GTK_POLICY_AUTOMATIC); + gtk_widget_show ([stylePicker widget]); + + GtkWidget *selectorFrame = gtk_frame_new (NULL); + gtk_widget_show (selectorFrame); + gtk_box_pack_start (GTK_BOX (configWidget), + selectorFrame, + TRUE, + TRUE, + 0); + gtk_container_add (GTK_CONTAINER (selectorFrame), + selWindow); + } + + return self; +} + +- (void) dealloc { + [[NSNotificationCenter defaultCenter] removeObserver:self]; + + [renderer release]; + [stylePicker release]; + [sourceNode release]; + + g_object_unref (G_OBJECT (configWidget)); + + [super dealloc]; +} + +- (EdgeStyle*) activeStyle { + return [stylePicker selectedStyle]; +} + +- (void) setActiveStyle:(EdgeStyle*)style { + return [stylePicker setSelectedStyle:style]; +} + +- (void) invalidateHalfEdge { + NSRect invRect = NSRectAroundPoints(sourceNodeScreenPoint, halfEdgeEnd); + [renderer invalidateRect:NSInsetRect (invRect, -2.0f, -2.0f)]; +} + +- (void) mousePressAt:(NSPoint)pos withButton:(MouseButton)button andMask:(InputMask)mask { + if (button != LeftButton) + return; + + sourceNode = [renderer anyNodeAt:pos]; + if (sourceNode != nil) { + Transformer *transformer = [[renderer surface] transformer]; + sourceNodeScreenPoint = [transformer toScreen:[sourceNode point]]; + halfEdgeEnd = pos; + [renderer setNode:sourceNode highlighted:YES]; + } +} + +- (void) mouseMoveTo:(NSPoint)pos withButtons:(MouseButton)buttons andMask:(InputMask)mask { + if (!(buttons & LeftButton)) + return; + if (sourceNode == nil) + return; + + [self invalidateHalfEdge]; + + [renderer clearHighlightedNodes]; + [renderer setNode:sourceNode highlighted:YES]; + halfEdgeEnd = pos; + Node *targ = [renderer anyNodeAt:pos]; + if (targ != nil) { + [renderer setNode:targ highlighted:YES]; + } + + [self invalidateHalfEdge]; +} + +- (void) mouseReleaseAt:(NSPoint)pos withButton:(MouseButton)button andMask:(InputMask)mask { + if (button != LeftButton) + return; + if (sourceNode == nil) + return; + + [renderer clearHighlightedNodes]; + [self invalidateHalfEdge]; + + Node *targ = [renderer anyNodeAt:pos]; + if (targ != nil) { + Edge *edge = [Edge edgeWithSource:sourceNode andTarget:targ]; + [edge setStyle:[self activeStyle]]; + [[renderer document] addEdge:edge]; + [renderer invalidateEdge:edge]; + } + + sourceNode = nil; +} + +- (void) renderWithContext:(id<RenderContext>)context onSurface:(id<Surface>)surface { + if (sourceNode == nil) { + return; + } + [context saveState]; + + [context setLineWidth:1.0]; + [context startPath]; + [context moveTo:sourceNodeScreenPoint]; + [context lineTo:halfEdgeEnd]; + [context strokePathWithColor:MakeRColor (0, 0, 0, 0.5)]; + + [context restoreState]; +} + +- (StyleManager*) styleManager { + return [[stylePicker model] styleManager]; +} + +- (void) loadConfiguration:(Configuration*)config { + NSString *styleName = [config stringEntry:@"ActiveStyle" + inGroup:@"CreateEdgeTool" + withDefault:nil]; + [self setActiveStyle:[[self styleManager] edgeStyleForName:styleName]]; +} + +- (void) saveConfiguration:(Configuration*)config { + [config setStringEntry:@"ActiveStyle" + inGroup:@"CreateEdgeTool" + value:[[self activeStyle] name]]; +} +@end + +// vim:ft=objc:ts=8:et:sts=4:sw=4 |