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livetrax/gtk2_ardour/gtk-custom-ruler.c
Paul Davis 4b23361226 continuing fixes to get this shibboleth to compile
git-svn-id: svn://localhost/trunk/ardour2@43 d708f5d6-7413-0410-9779-e7cbd77b26cf
2005-09-26 18:24:59 +00:00

368 lines
10 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
/*
* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
/* modified by andreas meyer <hexx3000@gmx.de> */
#include <stdio.h>
#include "gtk-custom-ruler.h"
enum
{
ARG_0,
ARG_LOWER,
ARG_UPPER,
ARG_POSITION,
ARG_MAX_SIZE,
ARG_SHOW_POSITION
};
static void gtk_custom_ruler_class_init (GtkCustomRulerClass * klass);
static void gtk_custom_ruler_init (GtkCustomRuler * ruler);
static void gtk_custom_ruler_realize (GtkWidget * widget);
static void gtk_custom_ruler_unrealize (GtkWidget * widget);
static void gtk_custom_ruler_size_allocate (GtkWidget * widget, GtkAllocation * allocation);
static gint gtk_custom_ruler_expose (GtkWidget * widget, GdkEventExpose * event);
static void gtk_custom_ruler_make_pixmap (GtkCustomRuler * ruler);
static void gtk_custom_ruler_set_arg (GtkObject * object, GtkArg * arg, guint arg_id);
static void gtk_custom_ruler_get_arg (GtkObject * object, GtkArg * arg, guint arg_id);
static gint
default_metric_get_marks (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
{
return 0;
}
static const GtkCustomMetric default_metric = {
1.0,
default_metric_get_marks
};
static GtkWidgetClass *parent_class;
GtkType gtk_custom_ruler_get_type (void)
{
static GtkType ruler_type = 0;
if (!ruler_type) {
static const GtkTypeInfo ruler_info = {
"GtkCustomRuler",
sizeof (GtkCustomRuler),
sizeof (GtkCustomRulerClass),
(GtkClassInitFunc) gtk_custom_ruler_class_init,
(GtkObjectInitFunc) gtk_custom_ruler_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
ruler_type = gtk_type_unique (GTK_TYPE_WIDGET, &ruler_info);
}
return ruler_type;
}
static void
gtk_custom_ruler_class_init (GtkCustomRulerClass * class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass *) class;
widget_class = (GtkWidgetClass *) class;
parent_class = gtk_type_class (GTK_TYPE_WIDGET);
object_class->set_arg = gtk_custom_ruler_set_arg;
object_class->get_arg = gtk_custom_ruler_get_arg;
widget_class->realize = gtk_custom_ruler_realize;
widget_class->unrealize = gtk_custom_ruler_unrealize;
widget_class->size_allocate = gtk_custom_ruler_size_allocate;
widget_class->expose_event = gtk_custom_ruler_expose;
class->draw_ticks = NULL;
class->draw_pos = NULL;
gtk_object_add_arg_type ("GtkCustomRuler::lower", GTK_TYPE_ULONG, GTK_ARG_READWRITE, ARG_LOWER);
gtk_object_add_arg_type ("GtkCustomRuler::upper", GTK_TYPE_ULONG, GTK_ARG_READWRITE, ARG_UPPER);
gtk_object_add_arg_type ("GtkCustomRuler::position", GTK_TYPE_ULONG, GTK_ARG_READWRITE, ARG_POSITION);
gtk_object_add_arg_type ("GtkCustomRuler::max_size", GTK_TYPE_ULONG, GTK_ARG_READWRITE, ARG_MAX_SIZE);
gtk_object_add_arg_type ("GtkCustomRuler::show_position", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_SHOW_POSITION);
}
static void
gtk_custom_ruler_init (GtkCustomRuler * ruler)
{
ruler->backing_store = NULL;
ruler->non_gr_exp_gc = NULL;
ruler->xsrc = 0;
ruler->ysrc = 0;
ruler->slider_size = 0;
ruler->lower = 0;
ruler->upper = 0;
ruler->position = 0;
ruler->max_size = 0;
ruler->show_position = FALSE;
gtk_custom_ruler_set_metric (ruler, NULL);
}
static void
gtk_custom_ruler_set_arg (GtkObject * object, GtkArg * arg, guint arg_id)
{
GtkCustomRuler *ruler = GTK_CUSTOM_RULER (object);
switch (arg_id) {
case ARG_LOWER:
gtk_custom_ruler_set_range (ruler, GTK_VALUE_ULONG (*arg), ruler->upper, ruler->position, ruler->max_size);
break;
case ARG_UPPER:
gtk_custom_ruler_set_range (ruler, ruler->lower, GTK_VALUE_ULONG (*arg), ruler->position, ruler->max_size);
break;
case ARG_POSITION:
gtk_custom_ruler_set_range (ruler, ruler->lower, ruler->upper, GTK_VALUE_ULONG (*arg), ruler->max_size);
break;
case ARG_MAX_SIZE:
gtk_custom_ruler_set_range (ruler, ruler->lower, ruler->upper, ruler->position, GTK_VALUE_ULONG (*arg));
break;
case ARG_SHOW_POSITION:
// gtk_customer_ruler_set_show_position (ruler, GTK_VALUE_BOOL (*arg));
break;
}
}
static void
gtk_custom_ruler_get_arg (GtkObject * object, GtkArg * arg, guint arg_id)
{
GtkCustomRuler *ruler = GTK_CUSTOM_RULER (object);
switch (arg_id) {
case ARG_LOWER:
GTK_VALUE_ULONG (*arg) = ruler->lower;
break;
case ARG_UPPER:
GTK_VALUE_ULONG (*arg) = ruler->upper;
break;
case ARG_POSITION:
GTK_VALUE_ULONG (*arg) = ruler->position;
break;
case ARG_MAX_SIZE:
GTK_VALUE_ULONG (*arg) = ruler->max_size;
break;
case ARG_SHOW_POSITION:
GTK_VALUE_BOOL (*arg) = ruler->show_position;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
void
gtk_custom_ruler_set_metric (GtkCustomRuler * ruler, GtkCustomMetric * metric)
{
g_return_if_fail (ruler != NULL);
g_return_if_fail (GTK_IS_CUSTOM_RULER (ruler));
if (metric == NULL)
ruler->metric = (GtkCustomMetric *) & default_metric;
else
ruler->metric = metric;
if (GTK_WIDGET_DRAWABLE (ruler))
gtk_widget_queue_draw (GTK_WIDGET (ruler));
}
void
gtk_custom_ruler_set_range (GtkCustomRuler * ruler, gulong lower, gulong upper, gulong position, gulong max_size)
{
g_return_if_fail (ruler != NULL);
g_return_if_fail (GTK_IS_CUSTOM_RULER (ruler));
ruler->lower = lower;
ruler->upper = upper;
ruler->position = position;
ruler->max_size = max_size;
if (GTK_WIDGET_DRAWABLE (ruler))
gtk_widget_queue_draw (GTK_WIDGET (ruler));
}
void
gtk_custom_ruler_draw_ticks (GtkCustomRuler * ruler)
{
GtkCustomRulerClass *klass;
g_return_if_fail (ruler != NULL);
g_return_if_fail (GTK_IS_CUSTOM_RULER (ruler));
klass = GTK_CUSTOM_RULER_CLASS (GTK_OBJECT (ruler));
if (klass->draw_ticks)
klass->draw_ticks (ruler);
}
void
gtk_custom_ruler_draw_pos (GtkCustomRuler * ruler)
{
GtkCustomRulerClass *klass;
g_return_if_fail (ruler != NULL);
g_return_if_fail (GTK_IS_CUSTOM_RULER (ruler));
klass = GTK_CUSTOM_RULER_CLASS (GTK_OBJECT (ruler));
if (klass->draw_pos && ruler->show_position)
klass->draw_pos (ruler);
}
static void
gtk_custom_ruler_realize (GtkWidget * widget)
{
GtkCustomRuler *ruler;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CUSTOM_RULER (widget));
ruler = GTK_CUSTOM_RULER (widget);
GTK_WIDGET_SET_FLAGS (ruler, GTK_REALIZED);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |= (GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
gdk_window_set_user_data (widget->window, ruler);
widget->style = gtk_style_attach (widget->style, widget->window);
gtk_style_set_background (widget->style, widget->window, GTK_STATE_ACTIVE);
gtk_custom_ruler_make_pixmap (ruler);
}
static void
gtk_custom_ruler_unrealize (GtkWidget * widget)
{
GtkCustomRuler *ruler;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CUSTOM_RULER (widget));
ruler = GTK_CUSTOM_RULER (widget);
if (ruler->backing_store)
gdk_pixmap_unref (ruler->backing_store);
if (ruler->non_gr_exp_gc)
gdk_gc_destroy (ruler->non_gr_exp_gc);
ruler->backing_store = NULL;
ruler->non_gr_exp_gc = NULL;
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(*GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_custom_ruler_size_allocate (GtkWidget * widget, GtkAllocation * allocation)
{
GtkCustomRuler *ruler;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CUSTOM_RULER (widget));
ruler = GTK_CUSTOM_RULER (widget);
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget)) {
gdk_window_move_resize (widget->window, allocation->x, allocation->y, allocation->width, allocation->height);
gtk_custom_ruler_make_pixmap (ruler);
}
}
static gint
gtk_custom_ruler_expose (GtkWidget * widget, GdkEventExpose * event)
{
GtkCustomRuler *ruler;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CUSTOM_RULER (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget)) {
ruler = GTK_CUSTOM_RULER (widget);
gtk_custom_ruler_draw_ticks (ruler);
gdk_draw_pixmap (widget->window,
ruler->non_gr_exp_gc,
ruler->backing_store, 0, 0, 0, 0, widget->allocation.width, widget->allocation.height);
gtk_custom_ruler_draw_pos (ruler);
}
return FALSE;
}
static void
gtk_custom_ruler_make_pixmap (GtkCustomRuler * ruler)
{
GtkWidget *widget;
gint width;
gint height;
widget = GTK_WIDGET (ruler);
if (ruler->backing_store) {
gdk_window_get_size (ruler->backing_store, &width, &height);
if ((width == widget->allocation.width) && (height == widget->allocation.height))
return;
gdk_pixmap_unref (ruler->backing_store);
}
ruler->backing_store = gdk_pixmap_new (widget->window, widget->allocation.width, widget->allocation.height, -1);
ruler->xsrc = 0;
ruler->ysrc = 0;
if (!ruler->non_gr_exp_gc) {
ruler->non_gr_exp_gc = gdk_gc_new (widget->window);
gdk_gc_set_exposures (ruler->non_gr_exp_gc, FALSE);
}
}
void
gtk_custom_ruler_set_show_position (GtkCustomRuler * ruler, gboolean yn)
{
ruler->show_position = yn;
}