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-rw-r--r--widgets/e-reflow/e-reflow-sorted.c185
-rw-r--r--widgets/e-reflow/e-reflow-sorted.h87
-rw-r--r--widgets/e-reflow/e-reflow.c36
-rw-r--r--widgets/e-reflow/e-reflow.h16
4 files changed, 309 insertions, 15 deletions
diff --git a/widgets/e-reflow/e-reflow-sorted.c b/widgets/e-reflow/e-reflow-sorted.c
new file mode 100644
index 0000000000..696efe454a
--- /dev/null
+++ b/widgets/e-reflow/e-reflow-sorted.c
@@ -0,0 +1,185 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * e-reflow-sorted.c
+ * Copyright (C) 2000 Helix Code, Inc.
+ * Author: Chris Lahey <clahey@helixcode.com>
+ *
+ * This library 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 library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <gnome.h>
+#include <math.h>
+#include "e-reflow-sorted.h"
+#include "e-canvas-utils.h"
+#include "e-canvas.h"
+#include "e-util.h"
+#include <glib.h>
+static void e_reflow_sorted_init (EReflowSorted *card);
+static void e_reflow_sorted_class_init (EReflowSortedClass *klass);
+static void e_reflow_sorted_set_arg (GtkObject *o, GtkArg *arg, guint arg_id);
+static void e_reflow_sorted_get_arg (GtkObject *object, GtkArg *arg, guint arg_id);
+static void e_reflow_sorted_add_item(EReflow *e_reflow, GnomeCanvasItem *item);
+
+static EReflowClass *parent_class = NULL;
+
+/* The arguments we take */
+enum {
+ ARG_0,
+ ARG_COMPARE_FUNC,
+ ARG_STRING_FUNC
+};
+
+GtkType
+e_reflow_sorted_get_type (void)
+{
+ static GtkType reflow_type = 0;
+
+ if (!reflow_type)
+ {
+ static const GtkTypeInfo reflow_info =
+ {
+ "EReflowSorted",
+ sizeof (EReflowSorted),
+ sizeof (EReflowSortedClass),
+ (GtkClassInitFunc) e_reflow_sorted_class_init,
+ (GtkObjectInitFunc) e_reflow_sorted_init,
+ /* reserved_1 */ NULL,
+ /* reserved_2 */ NULL,
+ (GtkClassInitFunc) NULL,
+ };
+
+ reflow_type = gtk_type_unique (e_reflow_get_type (), &reflow_info);
+ }
+
+ return reflow_type;
+}
+
+static void
+e_reflow_sorted_class_init (EReflowSortedClass *klass)
+{
+ GtkObjectClass *object_class;
+ EReflowClass *reflow_class;
+
+ object_class = (GtkObjectClass*) klass;
+ reflow_class = E_REFLOW_CLASS (klass);
+
+ parent_class = gtk_type_class (e_reflow_get_type ());
+
+ gtk_object_add_arg_type ("EReflowSorted::compare_func", GTK_TYPE_POINTER,
+ GTK_ARG_READWRITE, ARG_COMPARE_FUNC);
+ gtk_object_add_arg_type ("EReflowSorted::string_func", GTK_TYPE_POINTER,
+ GTK_ARG_READWRITE, ARG_STRING_FUNC);
+
+ reflow_class->add_item = e_reflow_sorted_add_item;
+
+ object_class->set_arg = e_reflow_sorted_set_arg;
+ object_class->get_arg = e_reflow_sorted_get_arg;
+}
+
+static void
+e_reflow_sorted_init (EReflowSorted *reflow)
+{
+ reflow->compare_func = NULL;
+ reflow->string_func = NULL;
+}
+
+static void
+e_reflow_sorted_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
+{
+ GnomeCanvasItem *item;
+ EReflowSorted *e_reflow_sorted;
+
+ item = GNOME_CANVAS_ITEM (o);
+ e_reflow_sorted = E_REFLOW_SORTED (o);
+
+ switch (arg_id){
+ case ARG_COMPARE_FUNC:
+ e_reflow_sorted->compare_func = GTK_VALUE_POINTER (*arg);
+ break;
+ case ARG_STRING_FUNC:
+ e_reflow_sorted->string_func = GTK_VALUE_POINTER (*arg);
+ break;
+ }
+}
+
+static void
+e_reflow_sorted_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
+{
+ EReflowSorted *e_reflow_sorted;
+
+ e_reflow_sorted = E_REFLOW_SORTED (object);
+
+ switch (arg_id) {
+ case ARG_COMPARE_FUNC:
+ GTK_VALUE_POINTER (*arg) = e_reflow_sorted->compare_func;
+ break;
+ case ARG_STRING_FUNC:
+ GTK_VALUE_POINTER (*arg) = e_reflow_sorted->string_func;
+ break;
+ default:
+ arg->type = GTK_TYPE_INVALID;
+ break;
+ }
+}
+
+void
+e_reflow_sorted_remove_item(EReflowSorted *e_reflow_sorted, const gchar *id)
+{
+ if (e_reflow_sorted->string_func) {
+ EReflow *reflow = E_REFLOW(e_reflow_sorted);
+ GList *list;
+ for (list = reflow->items; list; list = g_list_next(list)) {
+ GnomeCanvasItem *item = list->data;
+ char *string = e_reflow_sorted->string_func (item);
+ if (string && !strcmp(string, id)) {
+ reflow->items = g_list_remove_link(reflow->items, list);
+ g_list_free_1(list);
+ gtk_object_destroy(GTK_OBJECT(item));
+ if ( GTK_OBJECT_FLAGS( e_reflow_sorted ) & GNOME_CANVAS_ITEM_REALIZED ) {
+ e_canvas_item_request_reflow(item);
+ }
+ return;
+ }
+ }
+ }
+}
+
+void
+e_reflow_sorted_replace_item(EReflowSorted *e_reflow_sorted, GnomeCanvasItem *item)
+{
+ if (e_reflow_sorted->string_func) {
+ char *string = e_reflow_sorted->string_func (item);
+ e_reflow_sorted_remove_item(e_reflow_sorted, string);
+ e_reflow_sorted_add_item(E_REFLOW(e_reflow_sorted), item);
+ }
+}
+
+
+static void
+e_reflow_sorted_add_item(EReflow *reflow, GnomeCanvasItem *item)
+{
+ EReflowSorted *e_reflow_sorted = E_REFLOW_SORTED(reflow);
+ if ( e_reflow_sorted->compare_func ) {
+ reflow->items = g_list_insert_sorted(reflow->items, item, e_reflow_sorted->compare_func);
+
+ if ( GTK_OBJECT_FLAGS( e_reflow_sorted ) & GNOME_CANVAS_ITEM_REALIZED ) {
+ gnome_canvas_item_set(item,
+ "width", (double) reflow->column_width,
+ NULL);
+ e_canvas_item_request_reflow(item);
+ }
+ }
+}
diff --git a/widgets/e-reflow/e-reflow-sorted.h b/widgets/e-reflow/e-reflow-sorted.h
new file mode 100644
index 0000000000..4ffec7579b
--- /dev/null
+++ b/widgets/e-reflow/e-reflow-sorted.h
@@ -0,0 +1,87 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* e-reflow-sorted.h
+ * Copyright (C) 2000 Helix Code, Inc.
+ * Author: Chris Lahey <clahey@helixcode.com>
+ *
+ * This library 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 library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+#ifndef __E_REFLOW_SORTED_H__
+#define __E_REFLOW_SORTED_H__
+
+#include <e-reflow.h>
+
+#ifdef __cplusplus
+extern "C" {
+#pragma }
+#endif /* __cplusplus */
+
+/* EReflowSorted - A canvas item container.
+ *
+ * The following arguments are available:
+ *
+ * name type read/write description
+ * --------------------------------------------------------------------------------
+ * compare_func GCompareFunc RW compare function
+ * string_func EReflowStringFunc RW string function
+ *
+ * From EReflow:
+ * minimum_width double RW minimum width of the reflow. width >= minimum_width
+ * width double R width of the reflow
+ * height double RW height of the reflow
+ */
+
+#define E_REFLOW_SORTED_TYPE (e_reflow_sorted_get_type ())
+#define E_REFLOW_SORTED(obj) (GTK_CHECK_CAST ((obj), E_REFLOW_SORTED_TYPE, EReflowSorted))
+#define E_REFLOW_SORTED_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), E_REFLOW_SORTED_TYPE, EReflowSortedClass))
+#define E_IS_REFLOW_SORTED(obj) (GTK_CHECK_TYPE ((obj), E_REFLOW_SORTED_TYPE))
+#define E_IS_REFLOW_SORTED_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((obj), E_REFLOW_SORTED_TYPE))
+
+typedef char * (* EReflowStringFunc) (GnomeCanvasItem *);
+
+typedef struct _EReflowSorted EReflowSorted;
+typedef struct _EReflowSortedClass EReflowSortedClass;
+
+/* FIXME: Try reimplementing this as a hash table with key as string
+ and change EReflow to use a GTree. */
+struct _EReflowSorted
+{
+ EReflow parent;
+
+ /* item specific fields */
+ GCompareFunc compare_func;
+ EReflowStringFunc string_func;
+};
+
+struct _EReflowSortedClass
+{
+ EReflowClass parent_class;
+};
+
+/*
+ * To be added to a reflow, an item must have the argument "width" as
+ * a Read/Write argument and "height" as a Read Only argument. It
+ * should also do an ECanvas parent reflow request if its size
+ * changes.
+ */
+void e_reflow_sorted_remove_item (EReflowSorted *sorted, const char *id);
+void e_reflow_sorted_replace_item (EReflowSorted *sorted, GnomeCanvasItem *item);
+GtkType e_reflow_sorted_get_type (void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __E_REFLOW_SORTED_H__ */
diff --git a/widgets/e-reflow/e-reflow.c b/widgets/e-reflow/e-reflow.c
index 4af46bd4a4..0ff8c0f4ea 100644
--- a/widgets/e-reflow/e-reflow.c
+++ b/widgets/e-reflow/e-reflow.c
@@ -26,10 +26,11 @@
#include "e-canvas-utils.h"
#include "e-canvas.h"
#include "e-util.h"
-static void e_reflow_init (EReflow *card);
+static void e_reflow_init (EReflow *reflow);
static void e_reflow_class_init (EReflowClass *klass);
static void e_reflow_set_arg (GtkObject *o, GtkArg *arg, guint arg_id);
static void e_reflow_get_arg (GtkObject *object, GtkArg *arg, guint arg_id);
+static void e_reflow_destroy (GtkObject *object);
static gboolean e_reflow_event (GnomeCanvasItem *item, GdkEvent *event);
static void e_reflow_realize (GnomeCanvasItem *item);
static void e_reflow_unrealize (GnomeCanvasItem *item);
@@ -38,6 +39,7 @@ static void e_reflow_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
static void e_reflow_update (GnomeCanvasItem *item, double affine[6], ArtSVP *clip_path, gint flags);
static double e_reflow_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item);
static void e_reflow_reflow (GnomeCanvasItem *item, int flags);
+static void e_reflow_real_add_item(EReflow *e_reflow, GnomeCanvasItem *item);
static void e_reflow_resize_children (GnomeCanvasItem *item);
@@ -97,10 +99,12 @@ e_reflow_class_init (EReflowClass *klass)
GTK_ARG_READABLE, ARG_WIDTH);
gtk_object_add_arg_type ("EReflow::height", GTK_TYPE_DOUBLE,
GTK_ARG_READWRITE, ARG_HEIGHT);
+
+ klass->add_item = e_reflow_real_add_item;
- object_class->set_arg = e_reflow_set_arg;
- object_class->get_arg = e_reflow_get_arg;
- /* object_class->destroy = e_reflow_destroy; */
+ object_class->set_arg = e_reflow_set_arg;
+ object_class->get_arg = e_reflow_get_arg;
+ object_class->destroy = e_reflow_destroy;
/* GnomeCanvasItem method overrides */
item_class->event = e_reflow_event;
@@ -114,7 +118,6 @@ e_reflow_class_init (EReflowClass *klass)
static void
e_reflow_init (EReflow *reflow)
{
- /* reflow->card = NULL;*/
reflow->items = NULL;
reflow->columns = NULL;
reflow->column_width = 150;
@@ -181,6 +184,14 @@ e_reflow_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
}
static void
+e_reflow_destroy (GtkObject *object)
+{
+ EReflow *reflow = E_REFLOW(object);
+
+ g_list_free(reflow->items);
+}
+
+static void
e_reflow_realize (GnomeCanvasItem *item)
{
EReflow *e_reflow;
@@ -228,9 +239,11 @@ e_reflow_unrealize (GnomeCanvasItem *item)
gdk_cursor_destroy (e_reflow->arrow_cursor);
gdk_cursor_destroy (e_reflow->default_cursor);
+ e_reflow->arrow_cursor = NULL;
+ e_reflow->default_cursor = NULL;
- g_list_free (e_reflow->items);
g_list_free (e_reflow->columns);
+ e_reflow->columns = NULL;
if (GNOME_CANVAS_ITEM_CLASS(parent_class)->unrealize)
(* GNOME_CANVAS_ITEM_CLASS(parent_class)->unrealize) (item);
@@ -428,8 +441,8 @@ e_reflow_event (GnomeCanvasItem *item, GdkEvent *event)
return 0;
}
-void
-e_reflow_add_item(EReflow *e_reflow, GnomeCanvasItem *item)
+static void
+e_reflow_real_add_item(EReflow *e_reflow, GnomeCanvasItem *item)
{
e_reflow->items = g_list_append(e_reflow->items, item);
if ( GTK_OBJECT_FLAGS( e_reflow ) & GNOME_CANVAS_ITEM_REALIZED ) {
@@ -747,3 +760,10 @@ e_reflow_reflow( GnomeCanvasItem *item, int flags )
e_canvas_item_request_parent_reflow(item);
}
}
+
+void
+e_reflow_add_item(EReflow *e_reflow, GnomeCanvasItem *item)
+{
+ if (E_REFLOW_CLASS(GTK_OBJECT(e_reflow)->klass)->add_item)
+ (E_REFLOW_CLASS(GTK_OBJECT(e_reflow)->klass)->add_item) (e_reflow, item);
+}
diff --git a/widgets/e-reflow/e-reflow.h b/widgets/e-reflow/e-reflow.h
index 3a731474cb..54de59ba55 100644
--- a/widgets/e-reflow/e-reflow.h
+++ b/widgets/e-reflow/e-reflow.h
@@ -54,10 +54,8 @@ struct _EReflow
GnomeCanvasGroup parent;
/* item specific fields */
- /* EBook *book; */
-
GList *items; /* Of type GnomeCanvasItem */
- GList *columns; /* Of type GList pointing to type GnomeCanvasItem (points into items) */
+ GList *columns; /* Of type GList of type GnomeCanvasItem (points into items) */
gint column_count; /* Number of columnns */
double minimum_width;
@@ -87,12 +85,16 @@ struct _EReflowClass
{
GnomeCanvasGroupClass parent_class;
- void (* resize) (EReflow *reflow);
+ /* Virtual methods. */
+ void (* add_item) (EReflow *reflow, GnomeCanvasItem *item);
};
-/* To be added to a reflow, an item must have the arguments "x", "y",
- and "width" as Read/Write arguments and "height" as a Read Only
- argument. It must also have a "resize" signal. */
+/*
+ * To be added to a reflow, an item must have the argument "width" as
+ * a Read/Write argument and "height" as a Read Only argument. It
+ * should also do an ECanvas parent reflow request if its size
+ * changes.
+ */
void e_reflow_add_item(EReflow *e_reflow, GnomeCanvasItem *item);
GtkType e_reflow_get_type (void);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 20:58:44 +0800