gtk2/gtk/gtkadjustment.c

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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 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.
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*/
#include "gtkadjustment.h"
#include "gtksignal.h"
enum {
CHANGED,
VALUE_CHANGED,
LAST_SIGNAL
};
static void gtk_adjustment_class_init (GtkAdjustmentClass *klass);
static void gtk_adjustment_init (GtkAdjustment *adjustment);
made the <widget>_signals[] arrays of type guint rather than gint. made Mon Mar 9 15:48:10 1998 Tim Janik <timj@gimp.org> * Signal signedness and naming corrections, plus GtkType fixes: * gtk/gtkadjustment.c: * gtk/gtkbutton.c: * gtk/gtkcheckmenuitem.c: * gtk/gtkclist.c: * gtk/gtkcolorsel.c: * gtk/gtkcontainer.c: * gtk/gtkcurve.c: * gtk/gtkdata.c: * gtk/gtkeditable.c: * gtk/gtkentry.c: * gtk/gtkhandlebox.c: * gtk/gtkinputdialog.c: * gtk/gtkitem.c: * gtk/gtklist.c: * gtk/gtkmenuitem.c: * gtk/gtkmenushell.c: * gtk/gtknotebook.c: * gtk/gtkstatusbar.c: * gtk/gtktoolbar.c: * gtk/gtktree.c: * gtk/gtktreeitem.c: * gtk/gtkwidget.c: * gtk/gtktogglebutton.c: * gtk/gtkwindow.c: made the <widget>_signals[] arrays of type guint rather than gint. * gtk/gtkwidget.c (gtk_widget_get_ancestor): made widget_type a GtkType. * gtk/gtkcombo.h: handler ids need to be of type guint (entry_change_id, list_change_id). * gtk/gtkaccelerator.c: changed signal_num to signal_id and typed it guint. * gtk/gtkmain.c: made gtk_ndebug_keys a guint. * gtk/gtkmenu.h: * gtk/gtkmenu.c: (gtk_menu_popup): made button a guint. (gtk_menu_set_active): made index a guint. * gtk/gtkmenuitem.h: * gtk/gtkmenuitem.c: made accelerator_signal a guint. * gtk/gtkoptionmenu.h: * gtk/gtkoptionmenu.c: (gtk_option_menu_set_history): made index a guint. * gtk/gtksignal.h: * gtk/gtksignal.c: * gtk/gtkobject.h: * gtk/gtkobject.c: changed a bunch of prototypes to take guints rather than gints. also made some conversions from guint to GtkType, left over from when the fundamental-types system was introduced. * gtk/gtkobject.h: * gtk/gtkobject.c: made object_data_id_index and obj_count guints. made *signals and nsignals guints in GtkObjectClass.
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static guint adjustment_signals[LAST_SIGNAL] = { 0 };
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GtkType
configure.in acheader.h gdk/gdkwindow.c Check for Shape extension both on Sun May 3 13:38:22 1998 Owen Taylor <otaylor@gtk.org> * configure.in acheader.h gdk/gdkwindow.c Check for Shape extension both on the client and server side. (And, more importantly, check for the shape extension so we may include -lXext even when compiling with --disable-xshm) Don't set override_redirect on all shaped windows. It isn't necessary. * gdk/gdkwindow.c: Set ->colormap to NULL for root and foreign windows. Use this to check if we need to get the colormap from X. Fri May 1 22:32:47 1998 Owen Taylor <otaylor@gtk.org> * gtk/gtkbutton.c (gtk_button_paint): Draw the areas between the default and the button always in GTK_STATE_NORMAL. * gtk/gtkrange.c (gtk_range_style_set): Added a style_set callback. Fri May 1 16:40:57 1998 Owen Taylor <otaylor@gtk.org> * gdk/gdkpixmap.c (gdk_pixmap_colormap_create_from_xpmp[_d]): Fix a buffer overflow on pixmaps that claim to have more than 31 characters per pixel. (gdk_pixmap_read_string): Don't wrap around strings longer than half of address space ;-) * gtk/gtk[vh]ruler.c gtk/gtkinputdialog.c: Expand some buffers that were used for printing integers. * */* (almost): Style: All int foo () { ... } changed to int foo (void) { ... } ^^^^^^^ This is why some many files changed Even where there were proper prototypes elsewhere. * gdk/gxid.c (handle_claim_device): Some extra checks. It isn't safe against being fed bad X id's, but at least it should be safe against deleting all your files.
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gtk_adjustment_get_type (void)
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{
static GtkType adjustment_type = 0;
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if (!adjustment_type)
{
static const GtkTypeInfo adjustment_info =
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{
"GtkAdjustment",
sizeof (GtkAdjustment),
sizeof (GtkAdjustmentClass),
(GtkClassInitFunc) gtk_adjustment_class_init,
(GtkObjectInitFunc) gtk_adjustment_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
call the base class init fucntions from all parent types upon class Sun Jun 28 04:29:10 1998 Tim Janik <timj@gtk.org> * gtk/gtktypeutils.c (gtk_type_class_init): call the base class init fucntions from all parent types upon class initialization. * gtk/gtkcontainer.c: (gtk_container_get_type): announce gtk_container_base_class_init to the type system. (gtk_container_base_class_init): new function to feature base class initialization. (gtk_container_get_child_arg): (gtk_container_set_child_arg): call the GtkContainerClass get_child_arg and set_child_arg methods of the class indicated through the argument name. * gtk/gtkobject.c: (gtk_object_base_class_init): new function to feature base class initialization. (gtk_object_init_type): announce gtk_object_base_class_init to the type system. (gtk_object_class_init): setup the get_arg and set_arg pointers for GtkObjectClass. (gtk_object_setv): (gtk_object_getv): call the GtkObjectClass get_arg and set_arg methods, instead of bothering the type system with this. * gtk/gtkaccellabel.c: * gtk/gtkbutton.c: * gtk/gtkradiobutton.c: * gtk/gtktable.c: * gtk/gtktogglebutton.c: * gtk/gtktipsquery.c: * gtk/gtkbox.c: * gtk/gtkpacker.c: * gtk/gtkwidget.c: * gtk/gtkwindow.c: * gtk/gtkframe.c: * gtk/gtkmisc.c: * gtk/gtklabel.c: set the object_class->{g|s}et_arg pointers to the corresponding gtk_*_{g|s]et_arg functions and updated the gtk_*_get_type functions wrt GtkTypeInfo initialization. changed a lot of the set/get arg functions to take a GtkObject argument. gtk/gtkadjustment.c: gtk/gtkalignment.c: gtk/gtkarrow.c: gtk/gtkaspectframe.c: gtk/gtkbbox.c: gtk/gtkbin.c: gtk/gtkcheckbutton.c: gtk/gtkcheckmenuitem.c: gtk/gtkclist.c: gtk/gtkcolorsel.c: gtk/gtkcombo.c: gtk/gtkctree.c: gtk/gtkcurve.c: gtk/gtkdata.c: gtk/gtkdialog.c: gtk/gtkdrawingarea.c: gtk/gtkeditable.c: gtk/gtkentry.c: gtk/gtkeventbox.c: gtk/gtkfilesel.c: gtk/gtkfixed.c: gtk/gtkfontsel.c: gtk/gtkgamma.c: gtk/gtkhandlebox.c: gtk/gtkhbbox.c: gtk/gtkhbox.c: gtk/gtkhpaned.c: gtk/gtkhruler.c: gtk/gtkhscale.c: gtk/gtkhscrollbar.c: gtk/gtkhseparator.c: gtk/gtkimage.c: gtk/gtkinputdialog.c: gtk/gtkitem.c: gtk/gtkitemfactory.c: gtk/gtklist.c: gtk/gtklistitem.c: gtk/gtkmenu.c: gtk/gtkmenubar.c: gtk/gtkmenuitem.c: gtk/gtkmenushell.c: gtk/gtknotebook.c: gtk/gtkoptionmenu.c: gtk/gtkpaned.c: gtk/gtkpixmap.c: gtk/gtkpreview.c: gtk/gtkprogressbar.c: gtk/gtkradiomenuitem.c: gtk/gtkrange.c: gtk/gtkruler.c: gtk/gtkscale.c: gtk/gtkscrollbar.c: gtk/gtkscrolledwindow.c: gtk/gtkseparator.c: gtk/gtkspinbutton.c: gtk/gtkstatusbar.c: gtk/gtktext.c: gtk/gtktoolbar.c: gtk/gtktooltips.c: gtk/gtktree.c: gtk/gtktreeitem.c: gtk/gtkvbbox.c: gtk/gtkvbox.c: gtk/gtkviewport.c: gtk/gtkvpaned.c: gtk/gtkvruler.c: gtk/gtkvscale.c: gtk/gtkvscrollbar.c: gtk/gtkvseparator.c: updated the GtkTypeInfo initialization code to match the modified GtkTypeInfo structure.
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(GtkClassInitFunc) NULL,
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};
adjustment_type = gtk_type_unique (GTK_TYPE_DATA, &adjustment_info);
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}
return adjustment_type;
}
static void
gtk_adjustment_class_init (GtkAdjustmentClass *class)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass*) class;
adjustment_signals[CHANGED] =
gtk_signal_new ("changed",
GTK_RUN_FIRST | GTK_RUN_NO_RECURSE,
object_class->type,
GTK_SIGNAL_OFFSET (GtkAdjustmentClass, changed),
gtk_marshal_NONE__NONE,
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GTK_TYPE_NONE, 0);
adjustment_signals[VALUE_CHANGED] =
gtk_signal_new ("value_changed",
GTK_RUN_FIRST | GTK_RUN_NO_RECURSE,
object_class->type,
GTK_SIGNAL_OFFSET (GtkAdjustmentClass, value_changed),
gtk_marshal_NONE__NONE,
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GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, adjustment_signals, LAST_SIGNAL);
class->changed = NULL;
class->value_changed = NULL;
}
static void
gtk_adjustment_init (GtkAdjustment *adjustment)
{
adjustment->value = 0.0;
adjustment->lower = 0.0;
adjustment->upper = 0.0;
adjustment->step_increment = 0.0;
adjustment->page_increment = 0.0;
adjustment->page_size = 0.0;
}
GtkObject*
gtk_adjustment_new (gfloat value,
gfloat lower,
gfloat upper,
gfloat step_increment,
gfloat page_increment,
gfloat page_size)
{
GtkAdjustment *adjustment;
adjustment = gtk_type_new (gtk_adjustment_get_type ());
adjustment->value = value;
adjustment->lower = lower;
adjustment->upper = upper;
adjustment->step_increment = step_increment;
adjustment->page_increment = page_increment;
adjustment->page_size = page_size;
return GTK_OBJECT (adjustment);
}
void
gtk_adjustment_set_value (GtkAdjustment *adjustment,
gfloat value)
{
g_return_if_fail (adjustment != NULL);
g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
value = CLAMP (value, adjustment->lower, adjustment->upper);
if (value != adjustment->value)
{
adjustment->value = value;
gtk_adjustment_value_changed (adjustment);
}
}
void
gtk_adjustment_changed (GtkAdjustment *adjustment)
{
g_return_if_fail (adjustment != NULL);
g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
gtk_signal_emit (GTK_OBJECT (adjustment), adjustment_signals[CHANGED]);
}
void
gtk_adjustment_value_changed (GtkAdjustment *adjustment)
{
g_return_if_fail (adjustment != NULL);
g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
gtk_signal_emit (GTK_OBJECT (adjustment), adjustment_signals[VALUE_CHANGED]);
}
void
gtk_adjustment_clamp_page (GtkAdjustment *adjustment,
gfloat lower,
gfloat upper)
{
gint need_emission;
g_return_if_fail (adjustment != NULL);
g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
lower = CLAMP (lower, adjustment->lower, adjustment->upper);
upper = CLAMP (upper, adjustment->lower, adjustment->upper);
need_emission = FALSE;
if (adjustment->value + adjustment->page_size < upper)
{
adjustment->value = upper - adjustment->page_size;
need_emission = TRUE;
}
if (adjustment->value > lower)
{
adjustment->value = lower;
need_emission = TRUE;
}
if (need_emission)
gtk_adjustment_value_changed (adjustment);
}