gtk2/gtk/gtkvscale.c
Owen Taylor c944151a3c Fix G_VALUE_NO_COPY_CONTENTS instead of G_SIGNAL_TYPE_STATIC_SCOPE
Mon Apr  2 10:47:57 2001  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkwidget.c (gtk_widget_class_init): Fix
	G_VALUE_NO_COPY_CONTENTS instead of G_SIGNAL_TYPE_STATIC_SCOPE
	stupidity.

Mon Apr  2 00:51:11 2001  Owen Taylor  <otaylor@redhat.com>

	[ First pass at adding style properties. Still needs some definite
	fine-tuning. ]

        * gtk/gtkbutton.c: Add ::default_spacing style property.

	* gtk/gtkcheckbutton.[ch] gtkradiobutton.c: Add ::indicator_size,
	::indicator_spacing style properties.

	* gtk/gtkoptionmenu.c: Add ::indicator_size, ::indicator_spacing
	style properties.

	* gtk/gtk{,h,v}paned.[ch]: Make handle_size a style property
	rather than a normal property.

	* gtk/gtkwidget.c: Add an ::interior_focus style property to
	draw focus inside buttons, in the Windows/Java Metal/etc. style.

	* gtk/gtkbutton.c gtk/gtkcheckbutton.c gtk/gtktogglenbutton.c:
	Honor ::interior_focus.

	* gtk/gtkentry.c: Don't draw focus at all when ::interior_focus is
	TRUE.

	* gtk/gtkrange.[ch] gtk/gtk{h,v}scrollbar.c gtk/gtk{h,v}scale.c:
	Add ::slider_width, ::trough_border, ::stepper_size,
	::stepper_spacing style properties.

	* gtk/gtkscale.[ch] Add ::slider-length style property.
2001-04-02 15:51:28 +00:00

598 lines
17 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 Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 1997-2000. 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/.
*/
#include <stdio.h>
#include "gtkvscale.h"
#include "gtksignal.h"
#include "gdk/gdkkeysyms.h"
#include "gtkintl.h"
#define SCALE_CLASS(w) GTK_SCALE_GET_CLASS (w)
#define RANGE_CLASS(w) GTK_RANGE_GET_CLASS (w)
enum {
PROP_0,
PROP_ADJUSTMENT
};
static void gtk_vscale_class_init (GtkVScaleClass *klass);
static void gtk_vscale_init (GtkVScale *vscale);
static void gtk_vscale_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_vscale_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_vscale_realize (GtkWidget *widget);
static void gtk_vscale_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_vscale_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_vscale_pos_trough (GtkVScale *vscale,
gint *x,
gint *y,
gint *w,
gint *h);
static void gtk_vscale_pos_background (GtkVScale *vscale,
gint *x,
gint *y,
gint *w,
gint *h);
static void gtk_vscale_draw_slider (GtkRange *range);
static void gtk_vscale_draw_value (GtkScale *scale);
static gboolean gtk_vscale_trough_keys (GtkRange *range,
GdkEventKey *key,
GtkScrollType *scroll,
GtkTroughType *pos);
static void gtk_vscale_clear_background (GtkRange *range);
GtkType
gtk_vscale_get_type (void)
{
static GtkType vscale_type = 0;
if (!vscale_type)
{
static const GtkTypeInfo vscale_info =
{
"GtkVScale",
sizeof (GtkVScale),
sizeof (GtkVScaleClass),
(GtkClassInitFunc) gtk_vscale_class_init,
(GtkObjectInitFunc) gtk_vscale_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
vscale_type = gtk_type_unique (GTK_TYPE_SCALE, &vscale_info);
}
return vscale_type;
}
static void
gtk_vscale_class_init (GtkVScaleClass *class)
{
GtkObjectClass *object_class;
GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
GtkRangeClass *range_class;
GtkScaleClass *scale_class;
object_class = (GtkObjectClass*) class;
gobject_class = G_OBJECT_CLASS (class);
widget_class = (GtkWidgetClass*) class;
range_class = (GtkRangeClass*) class;
scale_class = (GtkScaleClass*) class;
gobject_class->set_property = gtk_vscale_set_property;
gobject_class->get_property = gtk_vscale_get_property;
widget_class->realize = gtk_vscale_realize;
widget_class->size_request = gtk_vscale_size_request;
widget_class->size_allocate = gtk_vscale_size_allocate;
range_class->slider_update = _gtk_range_default_vslider_update;
range_class->trough_click = _gtk_range_default_vtrough_click;
range_class->motion = _gtk_range_default_vmotion;
range_class->draw_slider = gtk_vscale_draw_slider;
range_class->trough_keys = gtk_vscale_trough_keys;
range_class->clear_background = gtk_vscale_clear_background;
scale_class->draw_value = gtk_vscale_draw_value;
g_object_class_install_property (gobject_class,
PROP_ADJUSTMENT,
g_param_spec_object ("adjustment",
_("Adjustment"),
_("The GtkAdjustment that determines the values to use for this VScale."),
GTK_TYPE_ADJUSTMENT,
G_PARAM_READWRITE));
}
static void
gtk_vscale_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkVScale *vscale;
vscale = GTK_VSCALE (object);
switch (prop_id)
{
case PROP_ADJUSTMENT:
gtk_range_set_adjustment (GTK_RANGE (vscale), g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_vscale_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkVScale *vscale;
vscale = GTK_VSCALE (object);
switch (prop_id)
{
case PROP_ADJUSTMENT:
g_value_set_object (value,
G_OBJECT (gtk_range_get_adjustment (GTK_RANGE (vscale))));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_vscale_init (GtkVScale *vscale)
{
GTK_WIDGET_SET_FLAGS (vscale, GTK_NO_WINDOW);
}
GtkWidget*
gtk_vscale_new (GtkAdjustment *adjustment)
{
GtkWidget *vscale;
vscale = gtk_widget_new (GTK_TYPE_VSCALE,
"adjustment", adjustment,
NULL);
return vscale;
}
static void
gtk_vscale_realize (GtkWidget *widget)
{
GtkRange *range;
GdkWindowAttr attributes;
gint attributes_mask;
gint x, y, w, h;
gint slider_width, slider_length;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_VSCALE (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
range = GTK_RANGE (widget);
_gtk_range_get_props (range, &slider_width, NULL, NULL, NULL);
gtk_widget_style_get (widget, "slider_length", &slider_length, NULL);
widget->window = gtk_widget_get_parent_window (widget);
gdk_window_ref (widget->window);
gtk_vscale_pos_trough (GTK_VSCALE (widget), &x, &y, &w, &h);
attributes.x = x;
attributes.y = y;
attributes.width = w;
attributes.height = h;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.event_mask = gtk_widget_get_events (widget) |
(GDK_EXPOSURE_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK);
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
range->trough = gdk_window_new (widget->window, &attributes, attributes_mask);
attributes.width = slider_width;
attributes.height = slider_length;
attributes.event_mask |= (GDK_BUTTON_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK);
range->slider = gdk_window_new (range->trough, &attributes, attributes_mask);
widget->style = gtk_style_attach (widget->style, widget->window);
gdk_window_set_user_data (range->trough, widget);
gdk_window_set_user_data (range->slider, widget);
gtk_style_set_background (widget->style, range->trough, GTK_STATE_ACTIVE);
gtk_style_set_background (widget->style, range->slider, GTK_STATE_NORMAL);
_gtk_range_slider_update (GTK_RANGE (widget));
gdk_window_show (range->slider);
}
static void
gtk_vscale_clear_background (GtkRange *range)
{
GtkWidget *widget;
GtkScale *scale;
gint x, y, width, height;
g_return_if_fail (range != NULL);
g_return_if_fail (GTK_IS_SCALE (range));
widget = GTK_WIDGET (range);
scale = GTK_SCALE (range);
gtk_vscale_pos_background (GTK_VSCALE (widget), &x, &y, &width, &height);
gtk_widget_queue_clear_area (GTK_WIDGET (range),
x, y, width, height);
}
static void
gtk_vscale_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkScale *scale = GTK_SCALE (widget);
gint slider_width, slider_length, trough_border;
_gtk_range_get_props (GTK_RANGE (scale),
&slider_width, &trough_border, NULL, NULL);
gtk_widget_style_get (widget, "slider_length", &slider_length, NULL);
requisition->width = (slider_width + trough_border * 2);
requisition->height = (slider_length + trough_border) * 2;
if (scale->draw_value)
{
gint value_width, value_height;
gtk_scale_get_value_size (scale, &value_width, &value_height);
if ((scale->value_pos == GTK_POS_LEFT) ||
(scale->value_pos == GTK_POS_RIGHT))
{
requisition->width += value_width + SCALE_CLASS (scale)->value_spacing;
if (requisition->height < (value_height))
requisition->height = value_height;
}
else if ((scale->value_pos == GTK_POS_TOP) ||
(scale->value_pos == GTK_POS_BOTTOM))
{
if (requisition->width < value_width)
requisition->width = value_width;
requisition->height += value_height;
}
}
}
static void
gtk_vscale_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkRange *range;
GtkScale *scale;
gint width, height;
gint x, y;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_VSCALE (widget));
g_return_if_fail (allocation != NULL);
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget))
{
range = GTK_RANGE (widget);
scale = GTK_SCALE (widget);
gtk_vscale_pos_trough (GTK_VSCALE (widget), &x, &y, &width, &height);
gdk_window_move_resize (range->trough, x, y, width, height);
_gtk_range_slider_update (GTK_RANGE (widget));
}
}
static void
gtk_vscale_pos_trough (GtkVScale *vscale,
gint *x,
gint *y,
gint *w,
gint *h)
{
GtkWidget *widget = GTK_WIDGET (vscale);
GtkScale *scale = GTK_SCALE (vscale);
gint value_width, value_height;
gint slider_width, trough_border;
_gtk_range_get_props (GTK_RANGE (scale),
&slider_width, &trough_border, NULL, NULL);
*w = (slider_width + trough_border * 2);
*h = widget->allocation.height;
if (scale->draw_value)
{
*x = 0;
*y = 0;
gtk_scale_get_value_size (scale, &value_width, &value_height);
switch (scale->value_pos)
{
case GTK_POS_LEFT:
*x = (value_width + SCALE_CLASS (scale)->value_spacing +
(widget->allocation.width - widget->requisition.width) / 2);
break;
case GTK_POS_RIGHT:
*x = (widget->allocation.width - widget->requisition.width) / 2;
break;
case GTK_POS_TOP:
*x = (widget->allocation.width - *w) / 2;
*y = value_height;
*h -= *y;
break;
case GTK_POS_BOTTOM:
*x = (widget->allocation.width - *w) / 2;
*h -= value_height;
break;
}
}
else
{
*x = (widget->allocation.width - *w) / 2;
*y = 0;
}
*y += 1;
*h -= 2;
*x += widget->allocation.x;
*y += widget->allocation.y;
}
static void
gtk_vscale_pos_background (GtkVScale *vscale,
gint *x,
gint *y,
gint *w,
gint *h)
{
GtkWidget *widget;
GtkScale *scale;
gint slider_width, trough_border;
gint tx, ty, twidth, theight;
g_return_if_fail (vscale != NULL);
g_return_if_fail (GTK_IS_VSCALE (vscale));
g_return_if_fail ((x != NULL) && (y != NULL) && (w != NULL) && (h != NULL));
gtk_vscale_pos_trough (vscale, &tx, &ty, &twidth, &theight);
widget = GTK_WIDGET (vscale);
scale = GTK_SCALE (vscale);
*x = widget->allocation.x;
*y = widget->allocation.y;
*w = widget->allocation.width;
*h = widget->allocation.height;
switch (scale->value_pos)
{
case GTK_POS_LEFT:
*w -= twidth;
break;
case GTK_POS_RIGHT:
*x += twidth;
*w -= twidth;
break;
case GTK_POS_TOP:
*h -= theight;
break;
case GTK_POS_BOTTOM:
*y += theight;
*h -= theight;
break;
}
*w = MAX (*w, 0);
*h = MAX (*h, 0);
}
static void
gtk_vscale_draw_slider (GtkRange *range)
{
GtkStateType state_type;
g_return_if_fail (range != NULL);
g_return_if_fail (GTK_IS_VSCALE (range));
if (range->slider)
{
if ((range->in_child == RANGE_CLASS (range)->slider) ||
(range->click_child == RANGE_CLASS (range)->slider))
state_type = GTK_STATE_PRELIGHT;
else
state_type = GTK_STATE_NORMAL;
gtk_paint_slider (GTK_WIDGET (range)->style, range->slider, state_type,
GTK_SHADOW_OUT,
NULL, GTK_WIDGET (range), "vscale",
0, 0, -1, -1,
GTK_ORIENTATION_VERTICAL);
}
}
static void
gtk_vscale_draw_value (GtkScale *scale)
{
GtkStateType state_type;
GtkWidget *widget;
gchar buffer[32];
gint width, height;
gint x, y;
g_return_if_fail (scale != NULL);
g_return_if_fail (GTK_IS_VSCALE (scale));
widget = GTK_WIDGET (scale);
if (scale->draw_value)
{
PangoLayout *layout;
PangoRectangle logical_rect;
sprintf (buffer, "%0.*f", GTK_RANGE (scale)->digits, GTK_RANGE (scale)->adjustment->value);
layout = gtk_widget_create_pango_layout (widget, buffer);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
switch (scale->value_pos)
{
case GTK_POS_LEFT:
gdk_window_get_position (GTK_RANGE (scale)->trough, &x, NULL);
gdk_window_get_position (GTK_RANGE (scale)->slider, NULL, &y);
gdk_window_get_size (GTK_RANGE (scale)->trough, &width, NULL);
gdk_window_get_size (GTK_RANGE (scale)->slider, NULL, &height);
x -= SCALE_CLASS (scale)->value_spacing + logical_rect.width;
y += widget->allocation.y + (height - logical_rect.height) / 2 +
PANGO_ASCENT (logical_rect);
break;
case GTK_POS_RIGHT:
gdk_window_get_position (GTK_RANGE (scale)->trough, &x, NULL);
gdk_window_get_position (GTK_RANGE (scale)->slider, NULL, &y);
gdk_window_get_size (GTK_RANGE (scale)->trough, &width, NULL);
gdk_window_get_size (GTK_RANGE (scale)->slider, NULL, &height);
x += width + SCALE_CLASS (scale)->value_spacing;
y += widget->allocation.y + (height - logical_rect.height) / 2 +
PANGO_ASCENT (logical_rect);
break;
case GTK_POS_TOP:
gdk_window_get_position (GTK_RANGE (scale)->trough, &x, &y);
gdk_window_get_size (GTK_RANGE (scale)->slider, &width, NULL);
gdk_window_get_size (GTK_RANGE (scale)->trough, NULL, &height);
x += (width - logical_rect.width) / 2;
y -= PANGO_DESCENT (logical_rect);
break;
case GTK_POS_BOTTOM:
gdk_window_get_position (GTK_RANGE (scale)->trough, &x, &y);
gdk_window_get_size (GTK_RANGE (scale)->slider, &width, NULL);
gdk_window_get_size (GTK_RANGE (scale)->trough, NULL, &height);
x += (width - logical_rect.width) / 2;
y += height + PANGO_ASCENT (logical_rect);
break;
}
state_type = GTK_STATE_NORMAL;
if (!GTK_WIDGET_IS_SENSITIVE (scale))
state_type = GTK_STATE_INSENSITIVE;
gtk_paint_layout (widget->style,
widget->window,
state_type,
NULL,
widget,
"vscale",
x, y,
layout);
g_object_unref (G_OBJECT (layout));
}
}
static gboolean
gtk_vscale_trough_keys (GtkRange *range,
GdkEventKey *key,
GtkScrollType *scroll,
GtkTroughType *pos)
{
gint return_val = FALSE;
switch (key->keyval)
{
case GDK_Up:
return_val = TRUE;
if (key->state & GDK_CONTROL_MASK)
*scroll = GTK_SCROLL_PAGE_UP;
else
*scroll = GTK_SCROLL_STEP_UP;
break;
case GDK_Down:
return_val = TRUE;
if (key->state & GDK_CONTROL_MASK)
*scroll = GTK_SCROLL_PAGE_DOWN;
else
*scroll = GTK_SCROLL_STEP_DOWN;
break;
case GDK_Page_Up:
return_val = TRUE;
*scroll = GTK_SCROLL_PAGE_BACKWARD;
break;
case GDK_Page_Down:
return_val = TRUE;
*scroll = GTK_SCROLL_PAGE_FORWARD;
break;
case GDK_Home:
return_val = TRUE;
*pos = GTK_TROUGH_START;
break;
case GDK_End:
return_val = TRUE;
*pos = GTK_TROUGH_END;
break;
}
return return_val;
}