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gtk2/gtk/gtkvscrollbar.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

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/* 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 "gtkvscrollbar.h"
#include "gtksignal.h"
#include "gdk/gdkkeysyms.h"
#include "gtkintl.h"
#define EPSILON 0.01
#define RANGE_CLASS(w) GTK_RANGE_GET_CLASS (w)
enum {
PROP_0,
PROP_ADJUSTMENT
};
static void gtk_vscrollbar_class_init (GtkVScrollbarClass *klass);
static void gtk_vscrollbar_init (GtkVScrollbar *vscrollbar);
static void gtk_vscrollbar_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_vscrollbar_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_vscrollbar_realize (GtkWidget *widget);
static void gtk_vscrollbar_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_vscrollbar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_vscrollbar_draw_step_forw (GtkRange *range);
static void gtk_vscrollbar_draw_step_back (GtkRange *range);
static void gtk_vscrollbar_slider_update (GtkRange *range);
static void gtk_vscrollbar_calc_slider_size (GtkVScrollbar *vscrollbar);
static gboolean gtk_vscrollbar_trough_keys (GtkRange *range,
GdkEventKey *key,
GtkScrollType *scroll,
GtkTroughType *pos);
GtkType
gtk_vscrollbar_get_type (void)
{
static GtkType vscrollbar_type = 0;
if (!vscrollbar_type)
{
static const GtkTypeInfo vscrollbar_info =
{
"GtkVScrollbar",
sizeof (GtkVScrollbar),
sizeof (GtkVScrollbarClass),
(GtkClassInitFunc) gtk_vscrollbar_class_init,
(GtkObjectInitFunc) gtk_vscrollbar_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
vscrollbar_type = gtk_type_unique (GTK_TYPE_SCROLLBAR, &vscrollbar_info);
}
return vscrollbar_type;
}
static void
gtk_vscrollbar_class_init (GtkVScrollbarClass *class)
{
GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
GtkRangeClass *range_class;
gobject_class = G_OBJECT_CLASS (class);
widget_class = (GtkWidgetClass*) class;
range_class = (GtkRangeClass*) class;
gobject_class->set_property = gtk_vscrollbar_set_property;
gobject_class->get_property = gtk_vscrollbar_get_property;
widget_class->realize = gtk_vscrollbar_realize;
widget_class->size_request = gtk_vscrollbar_size_request;
widget_class->size_allocate = gtk_vscrollbar_size_allocate;
range_class->draw_step_forw = gtk_vscrollbar_draw_step_forw;
range_class->draw_step_back = gtk_vscrollbar_draw_step_back;
range_class->slider_update = gtk_vscrollbar_slider_update;
range_class->trough_click = _gtk_range_default_vtrough_click;
range_class->trough_keys = gtk_vscrollbar_trough_keys;
range_class->motion = _gtk_range_default_vmotion;
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 scrollbar."),
GTK_TYPE_ADJUSTMENT,
G_PARAM_READWRITE));
}
static void
gtk_vscrollbar_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkVScrollbar *vscrollbar;
vscrollbar = GTK_VSCROLLBAR (object);
switch (prop_id)
{
case PROP_ADJUSTMENT:
gtk_range_set_adjustment (GTK_RANGE (vscrollbar), g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_vscrollbar_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkVScrollbar *vscrollbar;
vscrollbar = GTK_VSCROLLBAR (object);
switch (prop_id)
{
case PROP_ADJUSTMENT:
g_value_set_object (value, G_OBJECT (vscrollbar));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_vscrollbar_init (GtkVScrollbar *vscrollbar)
{
}
GtkWidget*
gtk_vscrollbar_new (GtkAdjustment *adjustment)
{
GtkWidget *vscrollbar;
vscrollbar = gtk_widget_new (GTK_TYPE_VSCROLLBAR,
"adjustment", adjustment,
NULL);
return vscrollbar;
}
static void
gtk_vscrollbar_realize (GtkWidget *widget)
{
GtkRange *range;
GdkWindowAttr attributes;
gint attributes_mask;
gint slider_width;
gint stepper_size;
gint trough_border;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_VSCROLLBAR (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
range = GTK_RANGE (widget);
_gtk_range_get_props (range, &slider_width, &trough_border,
&stepper_size, NULL);
attributes.x = widget->allocation.x + (widget->allocation.width - widget->requisition.width) / 2;
attributes.y = widget->allocation.y;
attributes.width = widget->requisition.width;
attributes.height = widget->allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
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_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_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);
range->trough = widget->window;
gdk_window_ref (range->trough);
attributes.x = trough_border;
attributes.y = trough_border;
attributes.width = stepper_size;
attributes.height = stepper_size;
range->step_back = gdk_window_new (range->trough, &attributes, attributes_mask);
attributes.y = (widget->allocation.height -
trough_border -
stepper_size);
range->step_forw = gdk_window_new (range->trough, &attributes, attributes_mask);
attributes.x = trough_border;
attributes.y = 0;
attributes.width = slider_width;
attributes.height = RANGE_CLASS (widget)->min_slider_size;
attributes.event_mask |= (GDK_BUTTON_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK);
range->slider = gdk_window_new (range->trough, &attributes, attributes_mask);
gtk_vscrollbar_calc_slider_size (GTK_VSCROLLBAR (widget));
_gtk_range_slider_update (GTK_RANGE (widget));
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);
gdk_window_set_user_data (range->step_forw, widget);
gdk_window_set_user_data (range->step_back, widget);
gtk_style_set_background (widget->style, range->trough, GTK_STATE_ACTIVE);
gtk_style_set_background (widget->style, range->slider, GTK_STATE_NORMAL);
gtk_style_set_background (widget->style, range->step_forw, GTK_STATE_ACTIVE);
gtk_style_set_background (widget->style, range->step_back, GTK_STATE_ACTIVE);
gdk_window_show (range->slider);
gdk_window_show (range->step_forw);
gdk_window_show (range->step_back);
}
static void
gtk_vscrollbar_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
gint slider_width;
gint trough_border;
gint stepper_size;
gint stepper_spacing;
GtkRange *range = GTK_RANGE (widget);
_gtk_range_get_props (range, &slider_width, &trough_border,
&stepper_size, &stepper_spacing);
requisition->width = (slider_width +
trough_border * 2);
requisition->height = (RANGE_CLASS (widget)->min_slider_size +
stepper_size +
stepper_spacing +
trough_border) * 2;
}
static void
gtk_vscrollbar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkRange *range;
gint trough_border;
gint stepper_size;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_VSCROLLBAR (widget));
g_return_if_fail (allocation != NULL);
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget))
{
range = GTK_RANGE (widget);
_gtk_range_get_props (range, NULL, &trough_border,
&stepper_size, NULL);
gdk_window_move_resize (range->trough,
allocation->x + (allocation->width - widget->requisition.width) / 2,
allocation->y,
widget->requisition.width, allocation->height);
gdk_window_move_resize (range->step_back,
trough_border,
trough_border,
widget->requisition.width - trough_border * 2,
stepper_size);
gdk_window_move_resize (range->step_forw,
trough_border,
allocation->height - trough_border -
stepper_size,
widget->requisition.width - trough_border * 2,
stepper_size);
_gtk_range_slider_update (GTK_RANGE (widget));
}
}
static void
gtk_vscrollbar_draw_step_forw (GtkRange *range)
{
GtkStateType state_type;
GtkShadowType shadow_type;
g_return_if_fail (range != NULL);
g_return_if_fail (GTK_IS_VSCROLLBAR (range));
if (GTK_WIDGET_DRAWABLE (range))
{
if (range->in_child == RANGE_CLASS (range)->step_forw)
{
if (range->click_child == RANGE_CLASS (range)->step_forw)
state_type = GTK_STATE_ACTIVE;
else
state_type = GTK_STATE_PRELIGHT;
}
else
state_type = GTK_STATE_NORMAL;
if (range->click_child == RANGE_CLASS (range)->step_forw)
shadow_type = GTK_SHADOW_IN;
else
shadow_type = GTK_SHADOW_OUT;
gtk_paint_arrow (GTK_WIDGET (range)->style, range->step_forw,
state_type, shadow_type,
NULL, GTK_WIDGET (range), "vscrollbar",
GTK_ARROW_DOWN,
TRUE, 0, 0, -1, -1);
}
}
static void
gtk_vscrollbar_draw_step_back (GtkRange *range)
{
GtkStateType state_type;
GtkShadowType shadow_type;
g_return_if_fail (range != NULL);
g_return_if_fail (GTK_IS_VSCROLLBAR (range));
if (GTK_WIDGET_DRAWABLE (range))
{
if (range->in_child == RANGE_CLASS (range)->step_back)
{
if (range->click_child == RANGE_CLASS (range)->step_back)
state_type = GTK_STATE_ACTIVE;
else
state_type = GTK_STATE_PRELIGHT;
}
else
state_type = GTK_STATE_NORMAL;
if (range->click_child == RANGE_CLASS (range)->step_back)
shadow_type = GTK_SHADOW_IN;
else
shadow_type = GTK_SHADOW_OUT;
gtk_paint_arrow (GTK_WIDGET (range)->style, range->step_back,
state_type, shadow_type,
NULL, GTK_WIDGET (range), "vscrollbar",
GTK_ARROW_UP,
TRUE, 0, 0, -1, -1);
}
}
static void
gtk_vscrollbar_slider_update (GtkRange *range)
{
g_return_if_fail (range != NULL);
g_return_if_fail (GTK_IS_VSCROLLBAR (range));
gtk_vscrollbar_calc_slider_size (GTK_VSCROLLBAR (range));
_gtk_range_default_vslider_update (range);
}
static void
gtk_vscrollbar_calc_slider_size (GtkVScrollbar *vscrollbar)
{
GtkRange *range;
gint step_back_y;
gint step_back_height;
gint step_forw_y;
gint stepper_spacing;
gint slider_width;
gint slider_height;
gint top, bottom;
gint height;
g_return_if_fail (vscrollbar != NULL);
g_return_if_fail (GTK_IS_VSCROLLBAR (vscrollbar));
if (GTK_WIDGET_REALIZED (vscrollbar))
{
range = GTK_RANGE (vscrollbar);
_gtk_range_get_props (range, NULL, NULL, NULL, &stepper_spacing);
gdk_window_get_size (range->step_back, NULL, &step_back_height);
gdk_window_get_position (range->step_back, NULL, &step_back_y);
gdk_window_get_position (range->step_forw, NULL, &step_forw_y);
top = (step_back_y +
step_back_height +
stepper_spacing);
bottom = step_forw_y - stepper_spacing;
height = bottom - top;
if ((range->adjustment->page_size > 0) &&
(range->adjustment->lower != range->adjustment->upper))
{
if (range->adjustment->page_size >
(range->adjustment->upper - range->adjustment->lower))
range->adjustment->page_size = range->adjustment->upper - range->adjustment->lower;
height = (height * range->adjustment->page_size /
(range->adjustment->upper - range->adjustment->lower));
if (height < RANGE_CLASS (vscrollbar)->min_slider_size)
height = RANGE_CLASS (vscrollbar)->min_slider_size;
}
gdk_window_get_size (range->slider, &slider_width, &slider_height);
if (slider_height != height)
{
gdk_window_resize (range->slider, slider_width, height);
gdk_window_invalidate_rect (range->slider, NULL, FALSE);
}
}
}
static gboolean
gtk_vscrollbar_trough_keys (GtkRange *range,
GdkEventKey *key,
GtkScrollType *scroll,
GtkTroughType *pos)
{
gint return_val = FALSE;
switch (key->keyval)
{
case GDK_Up:
return_val = TRUE;
*scroll = GTK_SCROLL_STEP_UP;
break;
case GDK_Down:
return_val = TRUE;
*scroll = GTK_SCROLL_STEP_DOWN;
break;
case GDK_Page_Up:
return_val = TRUE;
if (key->state & GDK_CONTROL_MASK)
*pos = GTK_TROUGH_START;
else
*scroll = GTK_SCROLL_PAGE_BACKWARD;
break;
case GDK_Page_Down:
return_val = TRUE;
if (key->state & GDK_CONTROL_MASK)
*pos = GTK_TROUGH_END;
else
*scroll = GTK_SCROLL_PAGE_FORWARD;
break;
}
return return_val;
}
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