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-rw-r--r--liblogdiag/ld-category-symbol-view.c252
-rw-r--r--liblogdiag/ld-category-symbol-view.h63
-rw-r--r--liblogdiag/ld-category-view.c19
-rw-r--r--liblogdiag/liblogdiag.h1
4 files changed, 330 insertions, 5 deletions
diff --git a/liblogdiag/ld-category-symbol-view.c b/liblogdiag/ld-category-symbol-view.c
new file mode 100644
index 0000000..7489668
--- /dev/null
+++ b/liblogdiag/ld-category-symbol-view.c
@@ -0,0 +1,252 @@
+/*
+ * ld-category-symbol-view.c
+ *
+ * This file is a part of logdiag.
+ * Copyright Přemysl Janouch 2012. All rights reserved.
+ *
+ * See the file LICENSE for licensing information.
+ *
+ */
+
+#include "liblogdiag.h"
+#include "config.h"
+
+
+/**
+ * SECTION:ld-category-symbol-view
+ * @short_description: A widget that displays symbols in a category
+ * @see_also: #LdCategory, #LdDiagramView
+ *
+ * #LdCategorySymbolView allows the user to drag symbols from an #LdCategory
+ * onto #LdDiagramView.
+ */
+
+/*
+ * LdCategorySymbolViewPrivate:
+ * @category: a category object assigned as a model.
+ */
+struct _LdCategorySymbolViewPrivate
+{
+ LdCategory *category;
+ guint height_negotiation : 1;
+};
+
+enum
+{
+ PROP_0,
+ PROP_CATEGORY
+};
+
+static void ld_category_symbol_view_get_property (GObject *object,
+ guint property_id, GValue *value, GParamSpec *pspec);
+static void ld_category_symbol_view_set_property (GObject *object,
+ guint property_id, const GValue *value, GParamSpec *pspec);
+static void ld_category_symbol_view_finalize (GObject *gobject);
+
+static void on_size_request (GtkWidget *widget, GtkRequisition *requisition,
+ gpointer user_data);
+static void on_size_allocate (GtkWidget *widget, GdkRectangle *allocation,
+ gpointer user_data);
+static gboolean on_expose_event (GtkWidget *widget, GdkEventExpose *event,
+ gpointer user_data);
+
+
+G_DEFINE_TYPE (LdCategorySymbolView,
+ ld_category_symbol_view, GTK_TYPE_DRAWING_AREA);
+
+static void
+ld_category_symbol_view_class_init (LdCategorySymbolViewClass *klass)
+{
+ GObjectClass *object_class;
+ GParamSpec *pspec;
+
+ object_class = G_OBJECT_CLASS (klass);
+ object_class->get_property = ld_category_symbol_view_get_property;
+ object_class->set_property = ld_category_symbol_view_set_property;
+ object_class->finalize = ld_category_symbol_view_finalize;
+
+/**
+ * LdCategorySymbolView:category:
+ *
+ * The underlying #LdCategory object of this view.
+ */
+ pspec = g_param_spec_object ("category", "Category",
+ "The underlying category object of this view.",
+ LD_TYPE_CATEGORY, G_PARAM_READWRITE);
+ g_object_class_install_property (object_class, PROP_CATEGORY, pspec);
+
+ g_type_class_add_private (klass, sizeof (LdCategorySymbolViewPrivate));
+}
+
+static void
+ld_category_symbol_view_init (LdCategorySymbolView *self)
+{
+ self->priv = G_TYPE_INSTANCE_GET_PRIVATE
+ (self, LD_TYPE_CATEGORY_SYMBOL_VIEW, LdCategorySymbolViewPrivate);
+
+ g_signal_connect (self, "size-allocate",
+ G_CALLBACK (on_size_allocate), NULL);
+ g_signal_connect (self, "size-request",
+ G_CALLBACK (on_size_request), NULL);
+ g_signal_connect (self, "expose-event",
+ G_CALLBACK (on_expose_event), NULL);
+
+ gtk_widget_add_events (GTK_WIDGET (self),
+ GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK
+ | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
+ | GDK_LEAVE_NOTIFY_MASK);
+}
+
+static void
+ld_category_symbol_view_finalize (GObject *gobject)
+{
+ LdCategorySymbolView *self;
+
+ self = LD_CATEGORY_SYMBOL_VIEW (gobject);
+
+ if (self->priv->category)
+ g_object_unref (self->priv->category);
+
+ /* Chain up to the parent class. */
+ G_OBJECT_CLASS (ld_category_symbol_view_parent_class)->finalize (gobject);
+}
+
+static void
+ld_category_symbol_view_get_property (GObject *object, guint property_id,
+ GValue *value, GParamSpec *pspec)
+{
+ LdCategorySymbolView *self;
+
+ self = LD_CATEGORY_SYMBOL_VIEW (object);
+ switch (property_id)
+ {
+ case PROP_CATEGORY:
+ g_value_set_object (value, ld_category_symbol_view_get_category (self));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ }
+}
+
+static void
+ld_category_symbol_view_set_property (GObject *object, guint property_id,
+ const GValue *value, GParamSpec *pspec)
+{
+ LdCategorySymbolView *self;
+
+ self = LD_CATEGORY_SYMBOL_VIEW (object);
+ switch (property_id)
+ {
+ case PROP_CATEGORY:
+ ld_category_symbol_view_set_category (self,
+ LD_CATEGORY (g_value_get_object (value)));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ }
+}
+
+static void
+on_size_request (GtkWidget *widget, GtkRequisition *requisition,
+ gpointer user_data)
+{
+ LdCategorySymbolView *self;
+
+ self = LD_CATEGORY_SYMBOL_VIEW (widget);
+
+ requisition->width = 10;
+
+ if (self->priv->height_negotiation)
+ {
+ GtkAllocation alloc;
+
+ gtk_widget_get_allocation (widget, &alloc);
+ requisition->height = 5000 / alloc.width;
+ }
+ else
+ requisition->height = 10;
+}
+
+static void
+on_size_allocate (GtkWidget *widget, GdkRectangle *allocation,
+ gpointer user_data)
+{
+ LdCategorySymbolView *self;
+
+ self = LD_CATEGORY_SYMBOL_VIEW (widget);
+
+ if (self->priv->height_negotiation)
+ self->priv->height_negotiation = FALSE;
+ else
+ {
+ self->priv->height_negotiation = TRUE;
+ gtk_widget_queue_resize (widget);
+ }
+}
+
+static gboolean
+on_expose_event (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
+{
+ cairo_t *cr;
+
+ cr = gdk_cairo_create (gtk_widget_get_window (widget));
+ gdk_cairo_rectangle (cr, &event->area);
+ cairo_clip (cr);
+
+ gdk_cairo_set_source_color (cr,
+ &gtk_widget_get_style (widget)->base[GTK_STATE_NORMAL]);
+ cairo_paint (cr);
+
+ cairo_destroy (cr);
+ return FALSE;
+}
+
+/* ===== Generic interface etc. ============================================ */
+
+/**
+ * ld_category_symbol_view_new:
+ *
+ * Create an instance.
+ */
+GtkWidget *
+ld_category_symbol_view_new (void)
+{
+ return g_object_new (LD_TYPE_CATEGORY_SYMBOL_VIEW, NULL);
+}
+
+/**
+ * ld_category_symbol_view_set_category:
+ * @self: an #LdCategorySymbolView object.
+ * @category: the #LdCategory to be assigned to the view.
+ *
+ * Assign an #LdCategory object to the view.
+ */
+void
+ld_category_symbol_view_set_category (LdCategorySymbolView *self,
+ LdCategory *category)
+{
+ g_return_if_fail (LD_IS_CATEGORY_SYMBOL_VIEW (self));
+ g_return_if_fail (LD_IS_CATEGORY (category));
+
+ if (self->priv->category)
+ g_object_unref (self->priv->category);
+
+ self->priv->category = category;
+ g_object_ref (category);
+
+ g_object_notify (G_OBJECT (self), "category");
+}
+
+/**
+ * ld_category_symbol_view_get_category:
+ * @self: an #LdCategorySymbolView object.
+ *
+ * Get the #LdCategory object assigned to this view.
+ * The reference count on the category is not incremented.
+ */
+LdCategory *
+ld_category_symbol_view_get_category (LdCategorySymbolView *self)
+{
+ g_return_val_if_fail (LD_IS_CATEGORY_SYMBOL_VIEW (self), NULL);
+ return self->priv->category;
+}
diff --git a/liblogdiag/ld-category-symbol-view.h b/liblogdiag/ld-category-symbol-view.h
new file mode 100644
index 0000000..10da898
--- /dev/null
+++ b/liblogdiag/ld-category-symbol-view.h
@@ -0,0 +1,63 @@
+/*
+ * ld-category-symbol-view.h
+ *
+ * This file is a part of logdiag.
+ * Copyright Přemysl Janouch 2012. All rights reserved.
+ *
+ * See the file LICENSE for licensing information.
+ *
+ */
+
+#ifndef __LD_CATEGORY_SYMBOL_VIEW_H__
+#define __LD_CATEGORY_SYMBOL_VIEW_H__
+
+G_BEGIN_DECLS
+
+
+#define LD_TYPE_CATEGORY_SYMBOL_VIEW (ld_category_symbol_view_get_type ())
+#define LD_CATEGORY_SYMBOL_VIEW(obj) (G_TYPE_CHECK_INSTANCE_CAST \
+ ((obj), LD_TYPE_CATEGORY_SYMBOL_VIEW, LdCategorySymbolView))
+#define LD_CATEGORY_SYMBOL_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST \
+ ((klass), LD_TYPE_CATEGORY_SYMBOL_VIEW, LdCategorySymbolViewClass))
+#define LD_IS_CATEGORY_SYMBOL_VIEW(obj) (G_TYPE_CHECK_INSTANCE_TYPE \
+ ((obj), LD_TYPE_CATEGORY_SYMBOL_VIEW))
+#define LD_IS_CATEGORY_SYMBOL_VIEW_CLASS(klass) (G_TYPE_CHECK_INSTANCE_TYPE \
+ ((klass), LD_TYPE_CATEGORY_SYMBOL_VIEW))
+#define LD_CATEGORY_SYMBOL_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS \
+ ((obj), LD_CATEGORY_SYMBOL_VIEW, LdCategorySymbolViewClass))
+
+typedef struct _LdCategorySymbolView LdCategorySymbolView;
+typedef struct _LdCategorySymbolViewPrivate LdCategorySymbolViewPrivate;
+typedef struct _LdCategorySymbolViewClass LdCategorySymbolViewClass;
+
+
+/**
+ * LdCategorySymbolView:
+ */
+struct _LdCategorySymbolView
+{
+/*< private >*/
+ GtkDrawingArea parent_instance;
+ LdCategorySymbolViewPrivate *priv;
+};
+
+struct _LdCategorySymbolViewClass
+{
+/*< private >*/
+ GtkDrawingAreaClass parent_class;
+};
+
+
+GType ld_category_symbol_view_get_type (void) G_GNUC_CONST;
+
+GtkWidget *ld_category_symbol_view_new (void);
+
+void ld_category_symbol_view_set_category
+ (LdCategorySymbolView *self, LdCategory *category);
+LdCategory *ld_category_symbol_view_get_category
+ (LdCategorySymbolView *self);
+
+
+G_END_DECLS
+
+#endif /* ! __LD_CATEGORY_SYMBOL_VIEW_H__ */
diff --git a/liblogdiag/ld-category-view.c b/liblogdiag/ld-category-view.c
index 75d10f1..5c0d7d4 100644
--- a/liblogdiag/ld-category-view.c
+++ b/liblogdiag/ld-category-view.c
@@ -263,18 +263,27 @@ reload_category (LdCategoryView *self)
if (self->priv->category)
{
- GSList *children;
-
- /* TODO: Also show the symbols. */
+ GSList *symbols, *children;
+ symbols = (GSList *) ld_category_get_symbols (self->priv->category);
children = (GSList *) ld_category_get_children (self->priv->category);
+
+ if (symbols)
+ {
+ GtkWidget *symbol_view;
+
+ symbol_view = ld_category_symbol_view_new ();
+ ld_category_symbol_view_set_category
+ (LD_CATEGORY_SYMBOL_VIEW (symbol_view), self->priv->category);
+ gtk_box_pack_start (GTK_BOX (self), symbol_view, FALSE, FALSE, 0);
+ }
+
if (children)
{
reconstruct_prefix (self);
g_slist_foreach (children, load_category_cb, self);
}
- else
- /* TODO: Don't show this if there are any symbols. */
+ else if (!symbols)
gtk_box_pack_start (GTK_BOX (self),
create_empty_label (), FALSE, FALSE, 0);
}
diff --git a/liblogdiag/liblogdiag.h b/liblogdiag/liblogdiag.h
index 97ee308..e3b0d90 100644
--- a/liblogdiag/liblogdiag.h
+++ b/liblogdiag/liblogdiag.h
@@ -28,6 +28,7 @@
#include "ld-diagram.h"
#include "ld-diagram-view.h"
+#include "ld-category-symbol-view.h"
#include "ld-category-view.h"
#include "ld-lua.h"
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-23 13:48:38 +0000