diff options
Diffstat (limited to 'tikzit/src/gtk/EdgeStyleSelector.m')
| -rw-r--r-- | tikzit/src/gtk/EdgeStyleSelector.m | 426 |
1 files changed, 37 insertions, 389 deletions
diff --git a/tikzit/src/gtk/EdgeStyleSelector.m b/tikzit/src/gtk/EdgeStyleSelector.m index c9c9780..6a9db33 100644 --- a/tikzit/src/gtk/EdgeStyleSelector.m +++ b/tikzit/src/gtk/EdgeStyleSelector.m @@ -17,91 +17,43 @@ #import "EdgeStyleSelector.h" -#import "CairoRenderContext.h" -#import "Edge.h" -#import "Edge+Render.h" -#import "Node.h" -#import "Shape.h" -#import "Shape+Render.h" -#import "ShapeNames.h" -#import "StyleManager.h" - -#import <gdk-pixbuf/gdk-pixbuf.h> +#import "EdgeStylesModel.h" // {{{ Internal interfaces -// {{{ Signals static void selection_changed_cb (GtkTreeSelection *sel, EdgeStyleSelector *mgr); // }}} - -enum { - STYLES_NAME_COL = 0, - STYLES_ICON_COL, - STYLES_PTR_COL, - STYLES_N_COLS -}; - -@interface EdgeStyleSelector (Notifications) -- (void) stylesReplaced:(NSNotification*)notification; -- (void) styleAdded:(NSNotification*)notification; -- (void) styleRemoved:(NSNotification*)notification; -- (void) activeStyleChanged:(NSNotification*)notification; -- (void) shapeDictionaryReplaced:(NSNotification*)n; -- (void) selectionChanged; -- (void) observeValueForKeyPath:(NSString*)keyPath - ofObject:(id)object - change:(NSDictionary*)change - context:(void*)context; -@end - -@interface EdgeStyleSelector (Private) -- (void) clearModel; -- (cairo_surface_t*) createEdgeIconSurface; -- (GdkPixbuf*) pixbufOfEdgeInStyle:(EdgeStyle*)style; -- (GdkPixbuf*) pixbufFromSurface:(cairo_surface_t*)surface; -- (GdkPixbuf*) pixbufOfEdgeInStyle:(EdgeStyle*)style usingSurface:(cairo_surface_t*)surface; -- (void) addStyle:(EdgeStyle*)style; -- (void) postSelectedStyleChanged; -- (void) observeStyle:(EdgeStyle*)style; -- (void) stopObservingStyle:(EdgeStyle*)style; -- (void) reloadStyles; -@end - -// }}} // {{{ API @implementation EdgeStyleSelector - (id) init { - self = [self initWithStyleManager:[StyleManager manager]]; - return self; + [self release]; + return nil; } - (id) initWithStyleManager:(StyleManager*)m { + return [self initWithModel:[EdgeStylesModel modelWithStyleManager:m]]; +} +- (id) initWithModel:(EdgeStylesModel*)m { self = [super init]; if (self) { - styleManager = nil; - linkedToActiveStyle = YES; + model = [m retain]; - store = gtk_list_store_new (STYLES_N_COLS, - G_TYPE_STRING, - GDK_TYPE_PIXBUF, - G_TYPE_POINTER); - g_object_ref (store); - - view = GTK_TREE_VIEW (gtk_tree_view_new_with_model (GTK_TREE_MODEL (store))); + view = GTK_TREE_VIEW (gtk_tree_view_new_with_model ([m model])); gtk_tree_view_set_headers_visible (view, FALSE); g_object_ref (view); GtkCellRenderer *renderer; GtkTreeViewColumn *column; renderer = gtk_cell_renderer_pixbuf_new (); - column = gtk_tree_view_column_new_with_attributes ("Preview", - renderer, - "pixbuf", STYLES_ICON_COL, - NULL); + column = gtk_tree_view_column_new_with_attributes ( + "Preview", + renderer, + "pixbuf", EDGE_STYLES_ICON_COL, + NULL); gtk_tree_view_append_column (view, column); - gtk_tree_view_set_tooltip_column (view, STYLES_NAME_COL); + gtk_tree_view_set_tooltip_column (view, EDGE_STYLES_NAME_COL); GtkTreeSelection *sel = gtk_tree_view_get_selection (view); gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE); @@ -110,13 +62,6 @@ enum { "changed", G_CALLBACK (selection_changed_cb), self); - - [self setStyleManager:m]; - - [[NSNotificationCenter defaultCenter] addObserver:self - selector:@selector(shapeDictionaryReplaced:) - name:@"ShapeDictionaryReplaced" - object:[Shape class]]; } return self; @@ -124,66 +69,31 @@ enum { - (void) dealloc { [[NSNotificationCenter defaultCenter] removeObserver:self]; + g_object_unref (view); - [self clearModel]; - g_object_unref (store); - [styleManager release]; + [model release]; [super dealloc]; } -- (StyleManager*) styleManager { - return styleManager; +- (EdgeStylesModel*) model { + return model; } -- (void) setStyleManager:(StyleManager*)m { - if (m == nil) { - [NSException raise:NSInvalidArgumentException format:@"Style manager cannot be nil"]; - } - [m retain]; - - [[NSNotificationCenter defaultCenter] removeObserver:self name:nil object:styleManager]; - [[NSNotificationCenter defaultCenter] addObserver:self - selector:@selector(stylesReplaced:) - name:@"EdgeStylesReplaced" - object:m]; - [[NSNotificationCenter defaultCenter] addObserver:self - selector:@selector(styleAdded:) - name:@"EdgeStyleAdded" - object:m]; - [[NSNotificationCenter defaultCenter] addObserver:self - selector:@selector(styleRemoved:) - name:@"EdgeStyleRemoved" - object:m]; - [[NSNotificationCenter defaultCenter] addObserver:self - selector:@selector(activeStyleChanged:) - name:@"ActiveEdgeStyleChanged" - object:m]; - - [styleManager release]; - styleManager = m; - - [self reloadStyles]; +- (void) setModel:(EdgeStylesModel*)m { + if (m == model) + return; + + EdgeStylesModel *oldModel = model; + model = [m retain]; + gtk_tree_view_set_model (view, [model model]); + [oldModel release]; } - (GtkWidget*) widget { return GTK_WIDGET (view); } -- (BOOL) isLinkedToActiveStyle { - return linkedToActiveStyle; -} - -- (void) setLinkedToActiveStyle:(BOOL)linked { - linkedToActiveStyle = linked; - if (linkedToActiveStyle) { - EdgeStyle *style = [self selectedStyle]; - if ([styleManager activeEdgeStyle] != style) { - [self setSelectedStyle:[styleManager activeEdgeStyle]]; - } - } -} - - (EdgeStyle*) selectedStyle { GtkTreeSelection *sel = gtk_tree_view_get_selection (view); GtkTreeIter iter; @@ -193,7 +103,7 @@ enum { } EdgeStyle *style = nil; - gtk_tree_model_get (GTK_TREE_MODEL (store), &iter, STYLES_PTR_COL, &style, -1); + gtk_tree_model_get ([model model], &iter, EDGE_STYLES_PTR_COL, &style, -1); return style; } @@ -206,278 +116,12 @@ enum { return; } - GtkTreeModel *m = GTK_TREE_MODEL (store); - GtkTreeIter row; - if (gtk_tree_model_get_iter_first (m, &row)) { - do { - EdgeStyle *rowStyle; - gtk_tree_model_get (m, &row, STYLES_PTR_COL, &rowStyle, -1); - if (style == rowStyle) { - gtk_tree_selection_unselect_all (sel); - GtkTreePath *path = gtk_tree_model_get_path (m, &row); - gtk_tree_selection_select_path (sel, path); - gtk_tree_path_free (path); - // styleManager.activeStyle will be updated by the GTK+ callback - return; - } - } while (gtk_tree_model_iter_next (m, &row)); - } -} - -@end - -// }}} -// {{{ Notifications - -@implementation EdgeStyleSelector (Notifications) - -- (void) stylesReplaced:(NSNotification*)notification { - [self reloadStyles]; -} - -- (void) styleAdded:(NSNotification*)notification { - [self addStyle:[[notification userInfo] objectForKey:@"style"]]; -} - -- (void) styleRemoved:(NSNotification*)notification { - EdgeStyle *style = [[notification userInfo] objectForKey:@"style"]; - - GtkTreeModel *model = GTK_TREE_MODEL (store); - GtkTreeIter row; - if (gtk_tree_model_get_iter_first (model, &row)) { - do { - EdgeStyle *rowStyle; - gtk_tree_model_get (model, &row, STYLES_PTR_COL, &rowStyle, -1); - if (style == rowStyle) { - gtk_list_store_remove (store, &row); - [self stopObservingStyle:rowStyle]; - [rowStyle release]; - return; - } - } while (gtk_tree_model_iter_next (model, &row)); - } -} - -- (void) activeStyleChanged:(NSNotification*)notification { - if (linkedToActiveStyle) { - EdgeStyle *style = [self selectedStyle]; - if ([styleManager activeEdgeStyle] != style) { - [self setSelectedStyle:[styleManager activeEdgeStyle]]; - } - } -} - -- (void) observeValueForKeyPath:(NSString*)keyPath - ofObject:(id)object - change:(NSDictionary*)change - context:(void*)context -{ - if ([object class] != [EdgeStyle class]) - return; - - EdgeStyle *style = object; - - GtkTreeModel *model = GTK_TREE_MODEL (store); - GtkTreeIter row; - if (gtk_tree_model_get_iter_first (model, &row)) { - do { - EdgeStyle *rowStyle; - gtk_tree_model_get (model, &row, STYLES_PTR_COL, &rowStyle, -1); - if (style == rowStyle) { - if ([@"name" isEqual:keyPath]) { - gtk_list_store_set (store, &row, STYLES_NAME_COL, [[style name] UTF8String], -1); - } else { - GdkPixbuf *pixbuf = [self pixbufOfEdgeInStyle:style]; - gtk_list_store_set (store, &row, STYLES_ICON_COL, pixbuf, -1); - g_object_unref (pixbuf); - } - } - } while (gtk_tree_model_iter_next (model, &row)); - } -} - -- (void) shapeDictionaryReplaced:(NSNotification*)n { - [self reloadStyles]; -} - -- (void) selectionChanged { - if (linkedToActiveStyle) { - EdgeStyle *style = [self selectedStyle]; - if ([styleManager activeEdgeStyle] != style) { - [styleManager setActiveEdgeStyle:style]; - } - } - [self postSelectedStyleChanged]; -} -@end - -// }}} -// {{{ Private - -@implementation EdgeStyleSelector (Private) -- (void) clearModel { - [self setSelectedStyle:nil]; - GtkTreeModel *model = GTK_TREE_MODEL (store); - GtkTreeIter row; - if (gtk_tree_model_get_iter_first (model, &row)) { - do { - EdgeStyle *rowStyle; - gtk_tree_model_get (model, &row, STYLES_PTR_COL, &rowStyle, -1); - [self stopObservingStyle:rowStyle]; - [rowStyle release]; - } while (gtk_tree_model_iter_next (model, &row)); - } - gtk_list_store_clear (store); -} - -- (cairo_surface_t*) createEdgeIconSurface { - return cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 48, 18); -} - -- (GdkPixbuf*) pixbufOfEdgeInStyle:(EdgeStyle*)style { - cairo_surface_t *surface = [self createEdgeIconSurface]; - GdkPixbuf *pixbuf = [self pixbufOfEdgeInStyle:style usingSurface:surface]; - cairo_surface_destroy (surface); - return pixbuf; -} - -// Bring on GTK+3 and gdk_pixbuf_get_from_surface() -- (GdkPixbuf*) pixbufFromSurface:(cairo_surface_t*)surface { - cairo_surface_flush (surface); - - int width = cairo_image_surface_get_width (surface); - int height = cairo_image_surface_get_height (surface); - int stride = cairo_image_surface_get_stride (surface); - unsigned char *data = cairo_image_surface_get_data (surface); - - GdkPixbuf *pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, - TRUE, - 8, - width, - height); - unsigned char *pbdata = gdk_pixbuf_get_pixels (pixbuf); - int pbstride = gdk_pixbuf_get_rowstride (pixbuf); - - for (int y = 0; y < height; ++y) { - uint32_t *line = (uint32_t*)(data + y*stride); - unsigned char *pbline = pbdata + (y*pbstride); - for (int x = 0; x < width; ++x) { - uint32_t pixel = *(line + x); - unsigned char *pbpixel = pbline + (x*4); - // NB: We should un-pre-mult the alpha here. - // However, in our world, alpha is always - // on or off, so it doesn't really matter - pbpixel[3] = ((pixel & 0xff000000) >> 24); - pbpixel[0] = ((pixel & 0x00ff0000) >> 16); - pbpixel[1] = ((pixel & 0x0000ff00) >> 8); - pbpixel[2] = (pixel & 0x000000ff); - } - } - - return pixbuf; -} - -- (GdkPixbuf*) pixbufOfEdgeInStyle:(EdgeStyle*)style usingSurface:(cairo_surface_t*)surface { - Transformer *transformer = [Transformer defaultTransformer]; - [transformer setFlippedAboutXAxis:YES]; - - int width = cairo_image_surface_get_width (surface); - int height = cairo_image_surface_get_height (surface); - NSRect pixbufBounds = NSMakeRect(0.0, 0.0, width, height); - NSRect graphBounds = [transformer rectFromScreen:pixbufBounds]; - - NSPoint start = NSMakePoint (NSMinX (graphBounds) + 0.1f, NSMidY (graphBounds)); - NSPoint end = NSMakePoint (NSMaxX (graphBounds) - 0.1f, NSMidY (graphBounds)); - Node *src = [Node nodeWithPoint:start]; - Node *tgt = [Node nodeWithPoint:end]; - Edge *e = [Edge edgeWithSource:src andTarget:tgt]; - [e setStyle:style]; - - CairoRenderContext *context = [[CairoRenderContext alloc] initForSurface:surface]; - [context clearSurface]; - [e renderBasicEdgeInContext:context withTransformer:transformer selected:NO]; - [context release]; - - return [self pixbufFromSurface:surface]; -} - -- (void) addStyle:(EdgeStyle*)style usingSurface:(cairo_surface_t*)surface { - GtkTreeIter iter; - gtk_list_store_append (store, &iter); - - GdkPixbuf *pixbuf = [self pixbufOfEdgeInStyle:style usingSurface:surface]; - gtk_list_store_set (store, &iter, - STYLES_NAME_COL, [[style name] UTF8String], - STYLES_ICON_COL, pixbuf, - STYLES_PTR_COL, (gpointer)[style retain], - -1); - g_object_unref (pixbuf); - [self observeStyle:style]; -} - -- (void) addStyle:(EdgeStyle*)style { - cairo_surface_t *surface = [self createEdgeIconSurface]; - [self addStyle:style usingSurface:surface]; - cairo_surface_destroy (surface); -} - -- (void) postSelectedStyleChanged { - [[NSNotificationCenter defaultCenter] postNotificationName:@"SelectedStyleChanged" object:self]; -} - -- (void) observeStyle:(EdgeStyle*)style { - [style addObserver:self - forKeyPath:@"name" - options:NSKeyValueObservingOptionNew - context:NULL]; - [style addObserver:self - forKeyPath:@"thickness" - options:0 - context:NULL]; - [style addObserver:self - forKeyPath:@"headStyle" - options:0 - context:NULL]; - [style addObserver:self - forKeyPath:@"tailStyle" - options:0 - context:NULL]; - [style addObserver:self - forKeyPath:@"decorationStyle" - options:0 - context:NULL]; - [style addObserver:self - forKeyPath:@"colorRGB.red" - options:0 - context:NULL]; - [style addObserver:self - forKeyPath:@"colorRGB.green" - options:0 - context:NULL]; - [style addObserver:self - forKeyPath:@"colorRGB.blue" - options:0 - context:NULL]; -} - -- (void) stopObservingStyle:(EdgeStyle*)style { - [style removeObserver:self forKeyPath:@"name"]; - [style removeObserver:self forKeyPath:@"thickness"]; - [style removeObserver:self forKeyPath:@"headStyle"]; - [style removeObserver:self forKeyPath:@"tailStyle"]; - [style removeObserver:self forKeyPath:@"decorationStyle"]; - [style removeObserver:self forKeyPath:@"colorRGB.red"]; - [style removeObserver:self forKeyPath:@"colorRGB.green"]; - [style removeObserver:self forKeyPath:@"colorRGB.blue"]; -} - -- (void) reloadStyles { - [self clearModel]; - cairo_surface_t *surface = [self createEdgeIconSurface]; - for (EdgeStyle *style in [styleManager edgeStyles]) { - [self addStyle:style usingSurface:surface]; + GtkTreePath *path = [model pathFromStyle:style]; + if (path) { + gtk_tree_selection_unselect_all (sel); + gtk_tree_selection_select_path (sel, path); + gtk_tree_path_free (path); } - cairo_surface_destroy (surface); } @end @@ -486,7 +130,11 @@ enum { static void selection_changed_cb (GtkTreeSelection *sel, EdgeStyleSelector *mgr) { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; - [mgr selectionChanged]; + + [[NSNotificationCenter defaultCenter] + postNotificationName:@"SelectedStyleChanged" + object:mgr]; + [pool drain]; } // }}} |