AuroraMiddleware/gtk2
1
0
Fork 0
forked from AuroraMiddleware/gtk
Code Issues Pull Requests Projects Releases Wiki Activity
c9e39436b9
gtk2/gtk/gtkspinbutton.c
Owen Taylor dfba226908 Make parent_class static. 
Sun Nov  5 04:24:53 2000  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkcellrenderertextpixbuf.c: Make parent_class
	static.

Tue Sep 19 10:54:22 2000  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkimcontext*.[ch] gtk/gtkimmulticontext.[ch]
	gtk/gtktextlayout.[ch] gtk/gtktextview.c gtk/gtkentry.c:
	Add support for positioning the cursor within the preedit string.

Mon Sep 18 23:56:32 2000  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtktextview.c: Check for bindings after passing
	events to im context filter.

Mon Sep 18 11:50:51 2000  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtktextlayout.c (add_preedit_attrs): Handle
	empty attribute lists properly.

Sun Sep 17 10:08:16 2000  Owen Taylor  <otaylor@redhat.com>

	* gtk/queryimmodules.c (main): Return non-zero exit
	status if errors were encountered querying any
	modules.

Sat Sep 16 14:01:52 2000  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtk.h: include gtkmodule.h gtkoldeditable.h,
	don't include gtkthemes.h.

	* gtk/testgtk.c gtk/testtext.c: Set environment variables
	to point

	* gtk/Makefile.am: Add new .c and .h files, build
	gtk-query-immodules and use it to create a gtk.immodules
	file for use of test programs.

	* gtk/gtkpreview.c: remove extra blank line.

Sat Sep 16 13:21:04 2000  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkimcontextsimple.c (gtk_im_context_simple_add_table):
	Add the ability to add extra tables beyond the default
	one, and also the ability to have compose sequences
	that are prefixes of other compose sequences.

	* gtk/gtkimcontextsimple.c: Export a preedit string which
	consists of possible candidates for keystrokes that have
	been entered but not yet committed.

	* gtk/gtkimcontext.[ch] gtk/immulticontext.[ch]
	gtk/gtkimcontextsimple.[ch]: add gtk_im_context_reset()

	* gtk/gtkmulticontext.[ch] (gtk_im_multicontext_append_menuitems):
	Add a function to add input-method switching menu items
	to a menu.

	* gtk/gtkimmulticontext.[ch]: Properly handly set_client_window
	when switching input methods.

	* gtk/gtkimcontextsimple.[ch]: Change the format of
	the compose table to allow compose tables of different
	lengths / sequence.

Sat Sep 16 13:05:48 2000  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkimmodule.[ch]: Support routines for loading
	GtkIMContext implementations dynamically at runtime.

	* gtk/queryimmodules.c: Program to query the available
	input modules and write the results into a file.

	* gtk/gtkrc.[ch] (gtk_rc_get_im_module_file): Add
	extra config options "im_module_file" (cache file for
	input method modules), and "im_module_path" - path
	to look for modules when generating cache file.

	This doesn't scale.

Sat Sep 16 13:09:06 2000  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkthemes.[ch] gtk/gtkmodule.[ch]: Move most of the
	generic	code from gtkthemes into a new abstraction
	GtkModule which has the logic for implementing
	a loadable module which implements a number of
	GObject types.

Sat Sep 16 13:07:13 2000  Owen Taylor  <otaylor@redhat.com>

        * gtk/gtkeditable.[ch]: Convert GtkEditable from
	a class into an interface

	* gtk/gtkoldeditable.[ch]: Move the old editable
	implementation into here, so legacy widgets can
	still rely on the implemenation. GtkOldEditable
	exports GtkEditable. Make selection handling
	code use new text conversion functions (and
	handle UTF-8 as a side-effect). Use GtkClipboard
	for CLIPBOARD.

	* gtk/gtktext.[ch] gtk/gtkcombo.c gtk/gtkspinbutton.c:
	Adopt to match above changes.

	* gtk/gtkentry.[ch]: Implement GtkEditable directly,
	avoid GtkOldEditable implementation. Restructure
        to reduce number of places that modify state directly.
	Move to GtkBindingSet. Display the preedit string.
	Queue recomputation of PangoLayout and scroll position
	to improve effiency of doing complex changes naively.
	Add a menu with cut/copy/paste and input method selection.

Thu Sep 14 22:11:05 2000  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtktextlayout.[ch]: Add gtk_text_layout_set_preedit_string()
	to set preedit string and attributes; display preedit string by
	inserting string and attributes at cursor when creating the
	GtkTextLineDisplay.

	* gtk/gtktextlayout.c: Move all conversions between byte
	positions in PangoLayout and GtkTextIter into new functions
	line_display_iter_to_index/index_to_iter that properly
	handle the preedit string.

	* gtk/gtktextmark.[ch]: Restore gtk_text_mark_get_name, modify
	it to return const char * (eventually will end up
	as GCONST char *, most likely.)

	* gtk/gtktextview.[ch]: Handle the preedit string, call
	gtk_im_context_reset() as necessary, add a menu to switch
	input methods.

	* gtk/gtktextlayout.[ch]: Remove useless
	gtk_text_layout_get_log_attrs() function.
2000-11-12 03:43:24 +00:00

1687 lines
45 KiB
C
Raw Blame History

/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* GtkSpinButton widget for GTK+
* Copyright (C) 1998 Lars Hamann and Stefan Jeske
*
* 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 <stdlib.h>
#include <math.h>
#include <string.h>
#include <locale.h>
#include "gdk/gdkkeysyms.h"
#include "gtkspinbutton.h"
#include "gtkmain.h"
#include "gtksignal.h"
#define MIN_SPIN_BUTTON_WIDTH 30
#define ARROW_SIZE 11
#define SPIN_BUTTON_INITIAL_TIMER_DELAY 200
#define SPIN_BUTTON_TIMER_DELAY 20
#define MAX_TEXT_LENGTH 256
#define MAX_TIMER_CALLS 5
#define EPSILON 1e-5
enum {
ARG_0,
ARG_ADJUSTMENT,
ARG_CLIMB_RATE,
ARG_DIGITS,
ARG_SNAP_TO_TICKS,
ARG_NUMERIC,
ARG_WRAP,
ARG_UPDATE_POLICY,
ARG_SHADOW_TYPE,
ARG_VALUE
};
/* Signals */
enum
{
INPUT,
OUTPUT,
LAST_SIGNAL
};
static void gtk_spin_button_class_init (GtkSpinButtonClass *klass);
static void gtk_spin_button_init (GtkSpinButton *spin_button);
static void gtk_spin_button_finalize (GObject *object);
static void gtk_spin_button_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_spin_button_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_spin_button_map (GtkWidget *widget);
static void gtk_spin_button_unmap (GtkWidget *widget);
static void gtk_spin_button_realize (GtkWidget *widget);
static void gtk_spin_button_unrealize (GtkWidget *widget);
static void gtk_spin_button_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_spin_button_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_spin_button_paint (GtkWidget *widget,
GdkRectangle *area);
static void gtk_spin_button_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_spin_button_expose (GtkWidget *widget,
GdkEventExpose *event);
static gint gtk_spin_button_button_press (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_spin_button_button_release (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_spin_button_motion_notify (GtkWidget *widget,
GdkEventMotion *event);
static gint gtk_spin_button_enter_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gint gtk_spin_button_leave_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gint gtk_spin_button_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static void gtk_spin_button_draw_arrow (GtkSpinButton *spin_button,
guint arrow);
static gint gtk_spin_button_timer (GtkSpinButton *spin_button);
static void gtk_spin_button_value_changed (GtkAdjustment *adjustment,
GtkSpinButton *spin_button);
static gint gtk_spin_button_key_press (GtkWidget *widget,
GdkEventKey *event);
static gint gtk_spin_button_key_release (GtkWidget *widget,
GdkEventKey *event);
static gint gtk_spin_button_scroll (GtkWidget *widget,
GdkEventScroll *event);
static void gtk_spin_button_activate (GtkEntry *entry);
static void gtk_spin_button_snap (GtkSpinButton *spin_button,
gfloat val);
static void gtk_spin_button_insert_text (GtkEntry *entry,
const gchar *new_text,
gint new_text_length,
gint *position);
static void gtk_spin_button_real_spin (GtkSpinButton *spin_button,
gfloat step);
static gint gtk_spin_button_default_input (GtkSpinButton *spin_button,
gfloat *new_val);
static gint gtk_spin_button_default_output (GtkSpinButton *spin_button);
static GtkEntryClass *parent_class = NULL;
static guint spinbutton_signals[LAST_SIGNAL] = {0};
GtkType
gtk_spin_button_get_type (void)
{
static guint spin_button_type = 0;
if (!spin_button_type)
{
static const GtkTypeInfo spin_button_info =
{
"GtkSpinButton",
sizeof (GtkSpinButton),
sizeof (GtkSpinButtonClass),
(GtkClassInitFunc) gtk_spin_button_class_init,
(GtkObjectInitFunc) gtk_spin_button_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
spin_button_type = gtk_type_unique (GTK_TYPE_ENTRY, &spin_button_info);
}
return spin_button_type;
}
static void
gtk_spin_button_class_init (GtkSpinButtonClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkEntryClass *entry_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
entry_class = (GtkEntryClass*) class;
parent_class = gtk_type_class (GTK_TYPE_ENTRY);
gobject_class->finalize = gtk_spin_button_finalize;
object_class->set_arg = gtk_spin_button_set_arg;
object_class->get_arg = gtk_spin_button_get_arg;
widget_class->map = gtk_spin_button_map;
widget_class->unmap = gtk_spin_button_unmap;
widget_class->realize = gtk_spin_button_realize;
widget_class->unrealize = gtk_spin_button_unrealize;
widget_class->size_request = gtk_spin_button_size_request;
widget_class->size_allocate = gtk_spin_button_size_allocate;
widget_class->draw = gtk_spin_button_draw;
widget_class->expose_event = gtk_spin_button_expose;
widget_class->scroll_event = gtk_spin_button_scroll;
widget_class->button_press_event = gtk_spin_button_button_press;
widget_class->button_release_event = gtk_spin_button_button_release;
widget_class->motion_notify_event = gtk_spin_button_motion_notify;
widget_class->key_press_event = gtk_spin_button_key_press;
widget_class->key_release_event = gtk_spin_button_key_release;
widget_class->enter_notify_event = gtk_spin_button_enter_notify;
widget_class->leave_notify_event = gtk_spin_button_leave_notify;
widget_class->focus_out_event = gtk_spin_button_focus_out;
entry_class->insert_text = gtk_spin_button_insert_text;
entry_class->activate = gtk_spin_button_activate;
class->input = NULL;
class->output = NULL;
gtk_object_add_arg_type ("GtkSpinButton::adjustment",
GTK_TYPE_ADJUSTMENT,
GTK_ARG_READWRITE,
ARG_ADJUSTMENT);
gtk_object_add_arg_type ("GtkSpinButton::climb_rate",
GTK_TYPE_FLOAT,
GTK_ARG_READWRITE,
ARG_CLIMB_RATE);
gtk_object_add_arg_type ("GtkSpinButton::digits",
GTK_TYPE_UINT,
GTK_ARG_READWRITE,
ARG_DIGITS);
gtk_object_add_arg_type ("GtkSpinButton::snap_to_ticks",
GTK_TYPE_BOOL,
GTK_ARG_READWRITE,
ARG_SNAP_TO_TICKS);
gtk_object_add_arg_type ("GtkSpinButton::numeric",
GTK_TYPE_BOOL,
GTK_ARG_READWRITE,
ARG_NUMERIC);
gtk_object_add_arg_type ("GtkSpinButton::wrap",
GTK_TYPE_BOOL,
GTK_ARG_READWRITE,
ARG_WRAP);
gtk_object_add_arg_type ("GtkSpinButton::update_policy",
GTK_TYPE_SPIN_BUTTON_UPDATE_POLICY,
GTK_ARG_READWRITE,
ARG_UPDATE_POLICY);
gtk_object_add_arg_type ("GtkSpinButton::shadow_type",
GTK_TYPE_SHADOW_TYPE,
GTK_ARG_READWRITE,
ARG_SHADOW_TYPE);
gtk_object_add_arg_type ("GtkSpinButton::value",
GTK_TYPE_FLOAT,
GTK_ARG_READWRITE,
ARG_VALUE);
spinbutton_signals[INPUT] =
gtk_signal_new ("input",
GTK_RUN_LAST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkSpinButtonClass, input),
gtk_marshal_INT__POINTER,
GTK_TYPE_INT, 1, GTK_TYPE_POINTER);
spinbutton_signals[OUTPUT] =
gtk_signal_new ("output",
GTK_RUN_LAST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkSpinButtonClass, output),
gtk_marshal_BOOLEAN__VOID,
GTK_TYPE_BOOL, 0);
gtk_object_class_add_signals (object_class, spinbutton_signals, LAST_SIGNAL);
}
static void
gtk_spin_button_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkSpinButton *spin_button;
spin_button = GTK_SPIN_BUTTON (object);
switch (arg_id)
{
GtkAdjustment *adjustment;
case ARG_ADJUSTMENT:
adjustment = GTK_VALUE_POINTER (*arg);
if (!adjustment)
adjustment = (GtkAdjustment*) gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
gtk_spin_button_set_adjustment (spin_button, adjustment);
break;
case ARG_CLIMB_RATE:
gtk_spin_button_configure (spin_button,
spin_button->adjustment,
GTK_VALUE_FLOAT (*arg),
spin_button->digits);
break;
case ARG_DIGITS:
gtk_spin_button_configure (spin_button,
spin_button->adjustment,
spin_button->climb_rate,
GTK_VALUE_UINT (*arg));
break;
case ARG_SNAP_TO_TICKS:
gtk_spin_button_set_snap_to_ticks (spin_button, GTK_VALUE_BOOL (*arg));
break;
case ARG_NUMERIC:
gtk_spin_button_set_numeric (spin_button, GTK_VALUE_BOOL (*arg));
break;
case ARG_WRAP:
gtk_spin_button_set_wrap (spin_button, GTK_VALUE_BOOL (*arg));
break;
case ARG_UPDATE_POLICY:
gtk_spin_button_set_update_policy (spin_button, GTK_VALUE_ENUM (*arg));
break;
case ARG_SHADOW_TYPE:
gtk_spin_button_set_shadow_type (spin_button, GTK_VALUE_ENUM (*arg));
break;
case ARG_VALUE:
gtk_spin_button_set_value (spin_button, GTK_VALUE_FLOAT (*arg));
break;
default:
break;
}
}
static void
gtk_spin_button_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkSpinButton *spin_button;
spin_button = GTK_SPIN_BUTTON (object);
switch (arg_id)
{
case ARG_ADJUSTMENT:
GTK_VALUE_POINTER (*arg) = spin_button->adjustment;
break;
case ARG_CLIMB_RATE:
GTK_VALUE_FLOAT (*arg) = spin_button->climb_rate;
break;
case ARG_DIGITS:
GTK_VALUE_UINT (*arg) = spin_button->digits;
break;
case ARG_SNAP_TO_TICKS:
GTK_VALUE_BOOL (*arg) = spin_button->snap_to_ticks;
break;
case ARG_NUMERIC:
GTK_VALUE_BOOL (*arg) = spin_button->numeric;
break;
case ARG_WRAP:
GTK_VALUE_BOOL (*arg) = spin_button->wrap;
break;
case ARG_UPDATE_POLICY:
GTK_VALUE_ENUM (*arg) = spin_button->update_policy;
break;
case ARG_SHADOW_TYPE:
GTK_VALUE_ENUM (*arg) = spin_button->shadow_type;
break;
case ARG_VALUE:
GTK_VALUE_FLOAT (*arg) = spin_button->adjustment->value;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
gtk_spin_button_init (GtkSpinButton *spin_button)
{
spin_button->adjustment = NULL;
spin_button->panel = NULL;
spin_button->shadow_type = GTK_SHADOW_NONE;
spin_button->timer = 0;
spin_button->ev_time = 0;
spin_button->climb_rate = 0.0;
spin_button->timer_step = 0.0;
spin_button->update_policy = GTK_UPDATE_ALWAYS;
spin_button->in_child = 2;
spin_button->click_child = 2;
spin_button->button = 0;
spin_button->need_timer = FALSE;
spin_button->timer_calls = 0;
spin_button->digits = 0;
spin_button->numeric = FALSE;
spin_button->wrap = FALSE;
spin_button->snap_to_ticks = FALSE;
gtk_spin_button_set_adjustment (spin_button,
(GtkAdjustment*) gtk_adjustment_new (0, 0, 0, 0, 0, 0));
}
static void
gtk_spin_button_finalize (GObject *object)
{
g_return_if_fail (GTK_IS_SPIN_BUTTON (object));
gtk_object_unref (GTK_OBJECT (GTK_SPIN_BUTTON (object)->adjustment));
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gtk_spin_button_map (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (widget));
if (GTK_WIDGET_REALIZED (widget) && !GTK_WIDGET_MAPPED (widget))
{
GTK_WIDGET_CLASS (parent_class)->map (widget);
gdk_window_show (GTK_SPIN_BUTTON (widget)->panel);
}
}
static void
gtk_spin_button_unmap (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (widget));
if (GTK_WIDGET_MAPPED (widget))
{
gdk_window_hide (GTK_SPIN_BUTTON (widget)->panel);
GTK_WIDGET_CLASS (parent_class)->unmap (widget);
}
}
static void
gtk_spin_button_realize (GtkWidget *widget)
{
GtkSpinButton *spin_button;
GdkWindowAttr attributes;
gint attributes_mask;
guint real_width;
gint return_val;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (widget));
spin_button = GTK_SPIN_BUTTON (widget);
real_width = widget->allocation.width;
widget->allocation.width -= ARROW_SIZE + 2 * widget->style->xthickness;
gtk_widget_set_events (widget, gtk_widget_get_events (widget) |
GDK_KEY_RELEASE_MASK);
GTK_WIDGET_CLASS (parent_class)->realize (widget);
widget->allocation.width = real_width;
attributes.window_type = GDK_WINDOW_CHILD;
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_BUTTON_PRESS_MASK
| GDK_BUTTON_RELEASE_MASK | GDK_LEAVE_NOTIFY_MASK | GDK_ENTER_NOTIFY_MASK
| GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
attributes.x = (widget->allocation.x + widget->allocation.width - ARROW_SIZE -
2 * widget->style->xthickness);
attributes.y = widget->allocation.y + (widget->allocation.height -
widget->requisition.height) / 2;
attributes.width = ARROW_SIZE + 2 * widget->style->xthickness;
attributes.height = widget->requisition.height;
spin_button->panel = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (spin_button->panel, widget);
gtk_style_set_background (widget->style, spin_button->panel, GTK_STATE_NORMAL);
return_val = FALSE;
gtk_signal_emit (GTK_OBJECT (spin_button), spinbutton_signals[OUTPUT],
&return_val);
if (return_val == FALSE)
gtk_spin_button_default_output (spin_button);
}
static void
gtk_spin_button_unrealize (GtkWidget *widget)
{
GtkSpinButton *spin;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (widget));
spin = GTK_SPIN_BUTTON (widget);
GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
if (spin->panel)
{
gdk_window_set_user_data (spin->panel, NULL);
gdk_window_destroy (spin->panel);
spin->panel = NULL;
}
}
static void
gtk_spin_button_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (requisition != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (widget));
GTK_WIDGET_CLASS (parent_class)->size_request (widget, requisition);
requisition->width = MIN_SPIN_BUTTON_WIDTH + ARROW_SIZE
+ 2 * widget->style->xthickness;
}
static void
gtk_spin_button_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkAllocation child_allocation;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (widget));
g_return_if_fail (allocation != NULL);
child_allocation = *allocation;
if (child_allocation.width > ARROW_SIZE + 2 * widget->style->xthickness)
child_allocation.width -= ARROW_SIZE + 2 * widget->style->xthickness;
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
child_allocation.x += ARROW_SIZE + 2 * widget->style->xthickness;
GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, &child_allocation);
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget))
{
child_allocation.width = ARROW_SIZE + 2 * widget->style->xthickness;
child_allocation.height = widget->requisition.height;
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
child_allocation.x = (allocation->x + allocation->width - ARROW_SIZE -
2 * widget->style->xthickness);
else
child_allocation.x = allocation->x;
child_allocation.y = allocation->y + (allocation->height - widget->requisition.height) / 2;
gdk_window_move_resize (GTK_SPIN_BUTTON (widget)->panel,
child_allocation.x,
child_allocation.y,
child_allocation.width,
child_allocation.height);
}
}
static void
gtk_spin_button_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkSpinButton *spin;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (widget));
spin = GTK_SPIN_BUTTON (widget);
if (GTK_WIDGET_DRAWABLE (widget))
{
if (spin->shadow_type != GTK_SHADOW_NONE)
gtk_paint_box (widget->style, spin->panel,
GTK_STATE_NORMAL, spin->shadow_type,
area, widget, "spinbutton",
0, 0,
ARROW_SIZE + 2 * widget->style->xthickness,
widget->requisition.height);
else
{
gdk_window_set_back_pixmap (spin->panel, NULL, TRUE);
gdk_window_clear_area (spin->panel, area->x, area->y, area->width, area->height);
}
gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP);
gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN);
GTK_WIDGET_CLASS (parent_class)->draw (widget, area);
}
}
static void
gtk_spin_button_draw (GtkWidget *widget,
GdkRectangle *area)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
gtk_spin_button_paint (widget, area);
}
static gint
gtk_spin_button_expose (GtkWidget *widget,
GdkEventExpose *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
gtk_spin_button_paint (widget, &event->area);
return FALSE;
}
static void
gtk_spin_button_draw_arrow (GtkSpinButton *spin_button,
guint arrow)
{
GtkStateType state_type;
GtkShadowType shadow_type;
GtkWidget *widget;
gint x;
gint y;
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
widget = GTK_WIDGET (spin_button);
if (GTK_WIDGET_DRAWABLE (spin_button))
{
if (!spin_button->wrap &&
(((arrow == GTK_ARROW_UP &&
(spin_button->adjustment->upper - spin_button->adjustment->value
<= EPSILON))) ||
((arrow == GTK_ARROW_DOWN &&
(spin_button->adjustment->value - spin_button->adjustment->lower
<= EPSILON)))))
{
shadow_type = GTK_SHADOW_ETCHED_IN;
state_type = GTK_STATE_NORMAL;
}
else
{
if (spin_button->in_child == arrow)
{
if (spin_button->click_child == arrow)
state_type = GTK_STATE_ACTIVE;
else
state_type = GTK_STATE_PRELIGHT;
}
else
state_type = GTK_STATE_NORMAL;
if (spin_button->click_child == arrow)
shadow_type = GTK_SHADOW_IN;
else
shadow_type = GTK_SHADOW_OUT;
}
if (arrow == GTK_ARROW_UP)
{
if (spin_button->shadow_type != GTK_SHADOW_NONE)
{
x = widget->style->xthickness;
y = widget->style->ythickness;
}
else
{
x = widget->style->xthickness - 1;
y = widget->style->ythickness - 1;
}
gtk_paint_arrow (widget->style, spin_button->panel,
state_type, shadow_type,
NULL, widget, "spinbutton",
arrow, TRUE,
x, y, ARROW_SIZE, widget->requisition.height / 2
- widget->style->ythickness);
}
else
{
if (spin_button->shadow_type != GTK_SHADOW_NONE)
{
x = widget->style->xthickness;
y = widget->requisition.height / 2;
}
else
{
x = widget->style->xthickness - 1;
y = widget->requisition.height / 2 + 1;
}
gtk_paint_arrow (widget->style, spin_button->panel,
state_type, shadow_type,
NULL, widget, "spinbutton",
arrow, TRUE,
x, y, ARROW_SIZE, widget->requisition.height / 2
- widget->style->ythickness);
}
}
}
static gint
gtk_spin_button_enter_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkSpinButton *spin;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
spin = GTK_SPIN_BUTTON (widget);
if (event->window == spin->panel)
{
gint x;
gint y;
gdk_window_get_pointer (spin->panel, &x, &y, NULL);
if (y <= widget->requisition.height / 2)
{
spin->in_child = GTK_ARROW_UP;
if (spin->click_child == 2)
gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP);
}
else
{
spin->in_child = GTK_ARROW_DOWN;
if (spin->click_child == 2)
gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN);
}
}
return FALSE;
}
static gint
gtk_spin_button_leave_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkSpinButton *spin;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
spin = GTK_SPIN_BUTTON (widget);
if (event->window == spin->panel && spin->click_child == 2)
{
if (spin->in_child == GTK_ARROW_UP)
{
spin->in_child = 2;
gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP);
}
else
{
spin->in_child = 2;
gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN);
}
}
return FALSE;
}
static gint
gtk_spin_button_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_ENTRY (widget)->editable)
gtk_spin_button_update (GTK_SPIN_BUTTON (widget));
return GTK_WIDGET_CLASS (parent_class)->focus_out_event (widget, event);
}
static gint
gtk_spin_button_scroll (GtkWidget *widget,
GdkEventScroll *event)
{
GtkSpinButton *spin;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
spin = GTK_SPIN_BUTTON (widget);
if (event->direction == GDK_SCROLL_UP)
{
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
gtk_spin_button_real_spin (spin, spin->adjustment->step_increment);
}
else if (event->direction == GDK_SCROLL_DOWN)
{
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
gtk_spin_button_real_spin (spin, -spin->adjustment->step_increment);
}
else
return FALSE;
return TRUE;
}
static gint
gtk_spin_button_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkSpinButton *spin;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
spin = GTK_SPIN_BUTTON (widget);
if (!spin->button)
{
if (event->window == spin->panel)
{
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
gtk_grab_add (widget);
spin->button = event->button;
if (GTK_ENTRY (widget)->editable)
gtk_spin_button_update (spin);
if (event->y <= widget->requisition.height / 2)
{
spin->click_child = GTK_ARROW_UP;
if (event->button == 1)
{
gtk_spin_button_real_spin (spin,
spin->adjustment->step_increment);
if (!spin->timer)
{
spin->timer_step = spin->adjustment->step_increment;
spin->need_timer = TRUE;
spin->timer = gtk_timeout_add
(SPIN_BUTTON_INITIAL_TIMER_DELAY,
(GtkFunction) gtk_spin_button_timer, (gpointer) spin);
}
}
else if (event->button == 2)
{
gtk_spin_button_real_spin (spin,
spin->adjustment->page_increment);
if (!spin->timer)
{
spin->timer_step = spin->adjustment->page_increment;
spin->need_timer = TRUE;
spin->timer = gtk_timeout_add
(SPIN_BUTTON_INITIAL_TIMER_DELAY,
(GtkFunction) gtk_spin_button_timer, (gpointer) spin);
}
}
gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP);
}
else
{
spin->click_child = GTK_ARROW_DOWN;
if (event->button == 1)
{
gtk_spin_button_real_spin (spin,
-spin->adjustment->step_increment);
if (!spin->timer)
{
spin->timer_step = spin->adjustment->step_increment;
spin->need_timer = TRUE;
spin->timer = gtk_timeout_add
(SPIN_BUTTON_INITIAL_TIMER_DELAY,
(GtkFunction) gtk_spin_button_timer, (gpointer) spin);
}
}
else if (event->button == 2)
{
gtk_spin_button_real_spin (spin,
-spin->adjustment->page_increment);
if (!spin->timer)
{
spin->timer_step = spin->adjustment->page_increment;
spin->need_timer = TRUE;
spin->timer = gtk_timeout_add
(SPIN_BUTTON_INITIAL_TIMER_DELAY,
(GtkFunction) gtk_spin_button_timer, (gpointer) spin);
}
}
gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN);
}
}
else
GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, event);
}
return FALSE;
}
static gint
gtk_spin_button_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkSpinButton *spin;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
spin = GTK_SPIN_BUTTON (widget);
if (event->button == spin->button)
{
guint click_child;
if (spin->timer)
{
gtk_timeout_remove (spin->timer);
spin->timer = 0;
spin->timer_calls = 0;
spin->need_timer = FALSE;
}
if (event->button == 3)
{
if (event->y >= 0 && event->x >= 0 &&
event->y <= widget->requisition.height &&
event->x <= ARROW_SIZE + 2 * widget->style->xthickness)
{
if (spin->click_child == GTK_ARROW_UP &&
event->y <= widget->requisition.height / 2)
{
gfloat diff;
diff = spin->adjustment->upper - spin->adjustment->value;
if (diff > EPSILON)
gtk_spin_button_real_spin (spin, diff);
}
else if (spin->click_child == GTK_ARROW_DOWN &&
event->y > widget->requisition.height / 2)
{
gfloat diff;
diff = spin->adjustment->value - spin->adjustment->lower;
if (diff > EPSILON)
gtk_spin_button_real_spin (spin, -diff);
}
}
}
gtk_grab_remove (widget);
click_child = spin->click_child;
spin->click_child = 2;
spin->button = 0;
gtk_spin_button_draw_arrow (spin, click_child);
}
else
GTK_WIDGET_CLASS (parent_class)->button_release_event (widget, event);
return FALSE;
}
static gint
gtk_spin_button_motion_notify (GtkWidget *widget,
GdkEventMotion *event)
{
GtkSpinButton *spin;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
spin = GTK_SPIN_BUTTON (widget);
if (spin->button)
return FALSE;
if (event->window == spin->panel)
{
gint y;
y = event->y;
if (event->is_hint)
gdk_window_get_pointer (spin->panel, NULL, &y, NULL);
if (y <= widget->requisition.height / 2 &&
spin->in_child == GTK_ARROW_DOWN)
{
spin->in_child = GTK_ARROW_UP;
gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP);
gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN);
}
else if (y > widget->requisition.height / 2 &&
spin->in_child == GTK_ARROW_UP)
{
spin->in_child = GTK_ARROW_DOWN;
gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP);
gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN);
}
return FALSE;
}
return GTK_WIDGET_CLASS (parent_class)->motion_notify_event (widget, event);
}
static gint
gtk_spin_button_timer (GtkSpinButton *spin_button)
{
gboolean retval = FALSE;
GDK_THREADS_ENTER ();
if (spin_button->timer)
{
if (spin_button->click_child == GTK_ARROW_UP)
gtk_spin_button_real_spin (spin_button, spin_button->timer_step);
else
gtk_spin_button_real_spin (spin_button, -spin_button->timer_step);
if (spin_button->need_timer)
{
spin_button->need_timer = FALSE;
spin_button->timer = gtk_timeout_add
(SPIN_BUTTON_TIMER_DELAY, (GtkFunction) gtk_spin_button_timer,
(gpointer) spin_button);
}
else
{
if (spin_button->climb_rate > 0.0 && spin_button->timer_step
< spin_button->adjustment->page_increment)
{
if (spin_button->timer_calls < MAX_TIMER_CALLS)
spin_button->timer_calls++;
else
{
spin_button->timer_calls = 0;
spin_button->timer_step += spin_button->climb_rate;
}
}
retval = TRUE;
}
}
GDK_THREADS_LEAVE ();
return retval;
}
static void
gtk_spin_button_value_changed (GtkAdjustment *adjustment,
GtkSpinButton *spin_button)
{
gint return_val;
g_return_if_fail (adjustment != NULL);
g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
return_val = FALSE;
gtk_signal_emit (GTK_OBJECT (spin_button), spinbutton_signals[OUTPUT],
&return_val);
if (return_val == FALSE)
gtk_spin_button_default_output (spin_button);
}
static gint
gtk_spin_button_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GtkSpinButton *spin;
gint key;
gboolean key_repeat = FALSE;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
spin = GTK_SPIN_BUTTON (widget);
key = event->keyval;
key_repeat = (event->time == spin->ev_time);
if (GTK_ENTRY (widget)->editable &&
(key == GDK_Up || key == GDK_Down ||
key == GDK_Page_Up || key == GDK_Page_Down))
gtk_spin_button_update (spin);
switch (key)
{
case GDK_Up:
if (GTK_WIDGET_HAS_FOCUS (widget))
{
gtk_signal_emit_stop_by_name (GTK_OBJECT (widget),
"key_press_event");
if (!key_repeat)
spin->timer_step = spin->adjustment->step_increment;
gtk_spin_button_real_spin (spin, spin->timer_step);
if (key_repeat)
{
if (spin->climb_rate > 0.0 && spin->timer_step
< spin->adjustment->page_increment)
{
if (spin->timer_calls < MAX_TIMER_CALLS)
spin->timer_calls++;
else
{
spin->timer_calls = 0;
spin->timer_step += spin->climb_rate;
}
}
}
return TRUE;
}
return FALSE;
case GDK_Down:
if (GTK_WIDGET_HAS_FOCUS (widget))
{
gtk_signal_emit_stop_by_name (GTK_OBJECT (widget),
"key_press_event");
if (!key_repeat)
spin->timer_step = spin->adjustment->step_increment;
gtk_spin_button_real_spin (spin, -spin->timer_step);
if (key_repeat)
{
if (spin->climb_rate > 0.0 && spin->timer_step
< spin->adjustment->page_increment)
{
if (spin->timer_calls < MAX_TIMER_CALLS)
spin->timer_calls++;
else
{
spin->timer_calls = 0;
spin->timer_step += spin->climb_rate;
}
}
}
return TRUE;
}
return FALSE;
case GDK_Page_Up:
if (event->state & GDK_CONTROL_MASK)
{
gfloat diff = spin->adjustment->upper - spin->adjustment->value;
if (diff > EPSILON)
gtk_spin_button_real_spin (spin, diff);
}
else
gtk_spin_button_real_spin (spin, spin->adjustment->page_increment);
return TRUE;
case GDK_Page_Down:
if (event->state & GDK_CONTROL_MASK)
{
gfloat diff = spin->adjustment->value - spin->adjustment->lower;
if (diff > EPSILON)
gtk_spin_button_real_spin (spin, -diff);
}
else
gtk_spin_button_real_spin (spin, -spin->adjustment->page_increment);
return TRUE;
default:
break;
}
return GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event);
}
static gint
gtk_spin_button_key_release (GtkWidget *widget,
GdkEventKey *event)
{
GtkSpinButton *spin;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE);
spin = GTK_SPIN_BUTTON (widget);
spin->ev_time = event->time;
return TRUE;
}
static void
gtk_spin_button_snap (GtkSpinButton *spin_button,
gfloat val)
{
gfloat inc;
gfloat tmp;
inc = spin_button->adjustment->step_increment;
tmp = (val - spin_button->adjustment->lower) / inc;
if (tmp - floor (tmp) < ceil (tmp) - tmp)
val = spin_button->adjustment->lower + floor (tmp) * inc;
else
val = spin_button->adjustment->lower + ceil (tmp) * inc;
if (fabs (val - spin_button->adjustment->value) > EPSILON)
gtk_adjustment_set_value (spin_button->adjustment, val);
else
{
gint return_val = FALSE;
gtk_signal_emit (GTK_OBJECT (spin_button), spinbutton_signals[OUTPUT],
&return_val);
if (return_val == FALSE)
gtk_spin_button_default_output (spin_button);
}
}
static void
gtk_spin_button_activate (GtkEntry *entry)
{
if (entry->editable)
gtk_spin_button_update (GTK_SPIN_BUTTON (entry));
}
static void
gtk_spin_button_insert_text (GtkEntry *entry,
const gchar *new_text,
gint new_text_length,
gint *position)
{
GtkEditable *editable = GTK_EDITABLE (entry);
GtkSpinButton *spin = GTK_SPIN_BUTTON (editable);
if (spin->numeric)
{
struct lconv *lc;
gboolean sign;
gint dotpos = -1;
gint i;
GdkWChar pos_sign;
GdkWChar neg_sign;
guint entry_length;
entry_length = entry->text_length;
lc = localeconv ();
if (*(lc->negative_sign))
neg_sign = *(lc->negative_sign);
else
neg_sign = '-';
if (*(lc->positive_sign))
pos_sign = *(lc->positive_sign);
else
pos_sign = '+';
for (sign=0, i=0; i<entry_length; i++)
if ((entry->text[i] == neg_sign) ||
(entry->text[i] == pos_sign))
{
sign = 1;
break;
}
if (sign && !(*position))
return;
for (dotpos=-1, i=0; i<entry_length; i++)
if (entry->text[i] == *(lc->decimal_point))
{
dotpos = i;
break;
}
if (dotpos > -1 && *position > dotpos &&
spin->digits - entry_length
+ dotpos - new_text_length + 1 < 0)
return;
for (i = 0; i < new_text_length; i++)
{
if (new_text[i] == neg_sign || new_text[i] == pos_sign)
{
if (sign || (*position) || i)
return;
sign = TRUE;
}
else if (new_text[i] == *(lc->decimal_point))
{
if (!spin->digits || dotpos > -1 ||
(new_text_length - 1 - i + entry_length
- *position > spin->digits))
return;
dotpos = *position + i;
}
else if (new_text[i] < 0x30 || new_text[i] > 0x39)
return;
}
}
GTK_ENTRY_CLASS (parent_class)->insert_text (entry, new_text,
new_text_length, position);
}
static void
gtk_spin_button_real_spin (GtkSpinButton *spin_button,
gfloat increment)
{
GtkAdjustment *adj;
gfloat new_value = 0.0;
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
adj = spin_button->adjustment;
new_value = adj->value + increment;
if (increment > 0)
{
if (spin_button->wrap)
{
if (fabs (adj->value - adj->upper) < EPSILON)
new_value = adj->lower;
else if (new_value > adj->upper)
new_value = adj->upper;
}
else
new_value = MIN (new_value, adj->upper);
}
else if (increment < 0)
{
if (spin_button->wrap)
{
if (fabs (adj->value - adj->lower) < EPSILON)
new_value = adj->upper;
else if (new_value < adj->lower)
new_value = adj->lower;
}
else
new_value = MAX (new_value, adj->lower);
}
if (fabs (new_value - adj->value) > EPSILON)
gtk_adjustment_set_value (adj, new_value);
}
static gint
gtk_spin_button_default_input (GtkSpinButton *spin_button,
gfloat *new_val)
{
gchar *err = NULL;
*new_val = strtod (gtk_entry_get_text (GTK_ENTRY (spin_button)), &err);
if (*err)
return GTK_INPUT_ERROR;
else
return FALSE;
}
static gint
gtk_spin_button_default_output (GtkSpinButton *spin_button)
{
gchar buf[MAX_TEXT_LENGTH];
sprintf (buf, "%0.*f", spin_button->digits, spin_button->adjustment->value);
if (strcmp (buf, gtk_entry_get_text (GTK_ENTRY (spin_button))))
gtk_entry_set_text (GTK_ENTRY (spin_button), buf);
return FALSE;
}
/***********************************************************
***********************************************************
*** Public interface ***
***********************************************************
***********************************************************/
void
gtk_spin_button_configure (GtkSpinButton *spin_button,
GtkAdjustment *adjustment,
gfloat climb_rate,
guint digits)
{
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
g_return_if_fail (digits < 6);
if (adjustment)
gtk_spin_button_set_adjustment (spin_button, adjustment);
else
adjustment = spin_button->adjustment;
spin_button->digits = digits;
spin_button->climb_rate = climb_rate;
gtk_adjustment_value_changed (adjustment);
}
GtkWidget *
gtk_spin_button_new (GtkAdjustment *adjustment,
gfloat climb_rate,
guint digits)
{
GtkSpinButton *spin;
if (adjustment)
g_return_val_if_fail (GTK_IS_ADJUSTMENT (adjustment), NULL);
g_return_val_if_fail (digits < 6, NULL);
spin = gtk_type_new (GTK_TYPE_SPIN_BUTTON);
gtk_spin_button_configure (spin, adjustment, climb_rate, digits);
return GTK_WIDGET (spin);
}
void
gtk_spin_button_set_adjustment (GtkSpinButton *spin_button,
GtkAdjustment *adjustment)
{
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
if (spin_button->adjustment != adjustment)
{
if (spin_button->adjustment)
{
gtk_signal_disconnect_by_data (GTK_OBJECT (spin_button->adjustment),
(gpointer) spin_button);
gtk_object_unref (GTK_OBJECT (spin_button->adjustment));
}
spin_button->adjustment = adjustment;
if (adjustment)
{
gtk_object_ref (GTK_OBJECT (adjustment));
gtk_object_sink (GTK_OBJECT (adjustment));
gtk_signal_connect (GTK_OBJECT (adjustment), "value_changed",
(GtkSignalFunc) gtk_spin_button_value_changed,
(gpointer) spin_button);
}
}
}
GtkAdjustment *
gtk_spin_button_get_adjustment (GtkSpinButton *spin_button)
{
g_return_val_if_fail (spin_button != NULL, NULL);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), NULL);
return spin_button->adjustment;
}
void
gtk_spin_button_set_digits (GtkSpinButton *spin_button,
guint digits)
{
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
g_return_if_fail (digits < 6);
if (spin_button->digits != digits)
{
spin_button->digits = digits;
gtk_spin_button_value_changed (spin_button->adjustment, spin_button);
}
}
gfloat
gtk_spin_button_get_value_as_float (GtkSpinButton *spin_button)
{
g_return_val_if_fail (spin_button != NULL, 0.0);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), 0.0);
return spin_button->adjustment->value;
}
gint
gtk_spin_button_get_value_as_int (GtkSpinButton *spin_button)
{
gfloat val;
g_return_val_if_fail (spin_button != NULL, 0);
g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), 0);
val = spin_button->adjustment->value;
if (val - floor (val) < ceil (val) - val)
return floor (val);
else
return ceil (val);
}
void
gtk_spin_button_set_value (GtkSpinButton *spin_button,
gfloat value)
{
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
if (fabs (value - spin_button->adjustment->value) > EPSILON)
gtk_adjustment_set_value (spin_button->adjustment, value);
else
{
gint return_val = FALSE;
gtk_signal_emit (GTK_OBJECT (spin_button), spinbutton_signals[OUTPUT],
&return_val);
if (return_val == FALSE)
gtk_spin_button_default_output (spin_button);
}
}
void
gtk_spin_button_set_update_policy (GtkSpinButton *spin_button,
GtkSpinButtonUpdatePolicy policy)
{
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
spin_button->update_policy = policy;
}
void
gtk_spin_button_set_numeric (GtkSpinButton *spin_button,
gboolean numeric)
{
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
spin_button->numeric = (numeric != 0);
}
void
gtk_spin_button_set_wrap (GtkSpinButton *spin_button,
gboolean wrap)
{
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
spin_button->wrap = (wrap != 0);
}
void
gtk_spin_button_set_shadow_type (GtkSpinButton *spin_button,
GtkShadowType shadow_type)
{
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
if (shadow_type != spin_button->shadow_type)
{
spin_button->shadow_type = shadow_type;
if (GTK_WIDGET_DRAWABLE (spin_button))
gtk_widget_queue_draw (GTK_WIDGET (spin_button));
}
}
void
gtk_spin_button_set_snap_to_ticks (GtkSpinButton *spin_button,
gboolean snap_to_ticks)
{
guint new_val;
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
new_val = (snap_to_ticks != 0);
if (new_val != spin_button->snap_to_ticks)
{
spin_button->snap_to_ticks = new_val;
if (new_val && GTK_ENTRY (spin_button)->editable)
gtk_spin_button_update (spin_button);
}
}
void
gtk_spin_button_spin (GtkSpinButton *spin_button,
GtkSpinType direction,
gfloat increment)
{
GtkAdjustment *adj;
gfloat diff;
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
adj = spin_button->adjustment;
/* for compatibility with the 1.0.x version of this function */
if (increment != 0 && increment != adj->step_increment &&
(direction == GTK_SPIN_STEP_FORWARD ||
direction == GTK_SPIN_STEP_BACKWARD))
{
if (direction == GTK_SPIN_STEP_BACKWARD && increment > 0)
increment = -increment;
direction = GTK_SPIN_USER_DEFINED;
}
switch (direction)
{
case GTK_SPIN_STEP_FORWARD:
gtk_spin_button_real_spin (spin_button, adj->step_increment);
break;
case GTK_SPIN_STEP_BACKWARD:
gtk_spin_button_real_spin (spin_button, -adj->step_increment);
break;
case GTK_SPIN_PAGE_FORWARD:
gtk_spin_button_real_spin (spin_button, adj->page_increment);
break;
case GTK_SPIN_PAGE_BACKWARD:
gtk_spin_button_real_spin (spin_button, -adj->page_increment);
break;
case GTK_SPIN_HOME:
diff = adj->value - adj->lower;
if (diff > EPSILON)
gtk_spin_button_real_spin (spin_button, -diff);
break;
case GTK_SPIN_END:
diff = adj->upper - adj->value;
if (diff > EPSILON)
gtk_spin_button_real_spin (spin_button, diff);
break;
case GTK_SPIN_USER_DEFINED:
if (increment != 0)
gtk_spin_button_real_spin (spin_button, increment);
break;
default:
break;
}
}
void
gtk_spin_button_update (GtkSpinButton *spin_button)
{
gfloat val;
gint error = 0;
gint return_val;
g_return_if_fail (spin_button != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button));
return_val = FALSE;
gtk_signal_emit (GTK_OBJECT (spin_button), spinbutton_signals[INPUT],
&val, &return_val);
if (return_val == FALSE)
{
return_val = gtk_spin_button_default_input (spin_button, &val);
error = (return_val == GTK_INPUT_ERROR);
}
else if (return_val == GTK_INPUT_ERROR)
error = 1;
if (spin_button->update_policy == GTK_UPDATE_ALWAYS)
{
if (val < spin_button->adjustment->lower)
val = spin_button->adjustment->lower;
else if (val > spin_button->adjustment->upper)
val = spin_button->adjustment->upper;
}
else if ((spin_button->update_policy == GTK_UPDATE_IF_VALID) &&
(error ||
val < spin_button->adjustment->lower ||
val > spin_button->adjustment->upper))
{
gtk_spin_button_value_changed (spin_button->adjustment, spin_button);
return;
}
if (spin_button->snap_to_ticks)
gtk_spin_button_snap (spin_button, val);
else
{
if (fabs (val - spin_button->adjustment->value) > EPSILON)
gtk_adjustment_set_value (spin_button->adjustment, val);
else
{
return_val = FALSE;
gtk_signal_emit (GTK_OBJECT (spin_button), spinbutton_signals[OUTPUT],
&return_val);
if (return_val == FALSE)
gtk_spin_button_default_output (spin_button);
}
}
}
Reference in New Issue View Git Blame Copy Permalink