forked from AuroraMiddleware/gtk
1375 lines
35 KiB
C
1375 lines
35 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdio.h>
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#include "gtkmain.h"
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#include "gtkrange.h"
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#include "gtksignal.h"
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#define SCROLL_TIMER_LENGTH 20
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#define SCROLL_INITIAL_DELAY 100
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#define SCROLL_DELAY_LENGTH 300
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#define RANGE_CLASS(w) GTK_RANGE_CLASS (GTK_OBJECT (w)->klass)
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static void gtk_range_class_init (GtkRangeClass *klass);
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static void gtk_range_init (GtkRange *range);
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static void gtk_range_destroy (GtkObject *object);
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static void gtk_range_draw (GtkWidget *widget,
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GdkRectangle *area);
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static void gtk_range_draw_focus (GtkWidget *widget);
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static void gtk_range_unrealize (GtkWidget *widget);
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static gint gtk_range_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static gint gtk_range_button_press (GtkWidget *widget,
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GdkEventButton *event);
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static gint gtk_range_button_release (GtkWidget *widget,
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GdkEventButton *event);
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static gint gtk_range_motion_notify (GtkWidget *widget,
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GdkEventMotion *event);
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static gint gtk_range_key_press (GtkWidget *widget,
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GdkEventKey *event);
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static gint gtk_range_enter_notify (GtkWidget *widget,
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GdkEventCrossing *event);
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static gint gtk_range_leave_notify (GtkWidget *widget,
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GdkEventCrossing *event);
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static gint gtk_range_focus_in (GtkWidget *widget,
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GdkEventFocus *event);
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static gint gtk_range_focus_out (GtkWidget *widget,
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GdkEventFocus *event);
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static void gtk_real_range_draw_trough (GtkRange *range);
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static void gtk_real_range_draw_slider (GtkRange *range);
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static gint gtk_real_range_timer (GtkRange *range);
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static gint gtk_range_scroll (GtkRange *range);
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static void gtk_range_add_timer (GtkRange *range);
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static void gtk_range_remove_timer (GtkRange *range);
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static void gtk_range_adjustment_changed (GtkAdjustment *adjustment,
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gpointer data);
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static void gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
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gpointer data);
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static void gtk_range_trough_hdims (GtkRange *range,
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gint *left,
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gint *right);
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static void gtk_range_trough_vdims (GtkRange *range,
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gint *top,
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gint *bottom);
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static GtkWidgetClass *parent_class = NULL;
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guint
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gtk_range_get_type ()
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{
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static guint range_type = 0;
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if (!range_type)
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{
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GtkTypeInfo range_info =
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{
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"GtkRange",
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sizeof (GtkRange),
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sizeof (GtkRangeClass),
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(GtkClassInitFunc) gtk_range_class_init,
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(GtkObjectInitFunc) gtk_range_init,
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(GtkArgFunc) NULL,
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};
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range_type = gtk_type_unique (gtk_widget_get_type (), &range_info);
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}
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return range_type;
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}
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static void
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gtk_range_class_init (GtkRangeClass *class)
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{
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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object_class = (GtkObjectClass*) class;
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widget_class = (GtkWidgetClass*) class;
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parent_class = gtk_type_class (gtk_widget_get_type ());
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object_class->destroy = gtk_range_destroy;
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widget_class->draw = gtk_range_draw;
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widget_class->draw_focus = gtk_range_draw_focus;
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widget_class->unrealize = gtk_range_unrealize;
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widget_class->expose_event = gtk_range_expose;
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widget_class->button_press_event = gtk_range_button_press;
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widget_class->button_release_event = gtk_range_button_release;
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widget_class->motion_notify_event = gtk_range_motion_notify;
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widget_class->key_press_event = gtk_range_key_press;
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widget_class->enter_notify_event = gtk_range_enter_notify;
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widget_class->leave_notify_event = gtk_range_leave_notify;
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widget_class->focus_in_event = gtk_range_focus_in;
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widget_class->focus_out_event = gtk_range_focus_out;
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class->slider_width = 11;
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class->stepper_size = 11;
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class->stepper_slider_spacing = 1;
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class->min_slider_size = 7;
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class->trough = 1;
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class->slider = 2;
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class->step_forw = 3;
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class->step_back = 4;
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class->draw_background = NULL;
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class->draw_trough = gtk_real_range_draw_trough;
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class->draw_slider = gtk_real_range_draw_slider;
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class->draw_step_forw = NULL;
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class->draw_step_back = NULL;
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class->trough_click = NULL;
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class->trough_keys = NULL;
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class->motion = NULL;
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class->timer = gtk_real_range_timer;
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}
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static void
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gtk_range_init (GtkRange *range)
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{
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range->trough = NULL;
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range->slider = NULL;
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range->step_forw = NULL;
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range->step_back = NULL;
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range->x_click_point = 0;
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range->y_click_point = 0;
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range->button = 0;
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range->digits = -1;
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range->policy = GTK_UPDATE_CONTINUOUS;
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range->scroll_type = GTK_SCROLL_NONE;
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range->in_child = 0;
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range->click_child = 0;
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range->need_timer = FALSE;
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range->timer = 0;
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range->old_value = 0.0;
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range->old_lower = 0.0;
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range->old_upper = 0.0;
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range->old_page_size = 0.0;
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range->adjustment = NULL;
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}
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GtkAdjustment*
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gtk_range_get_adjustment (GtkRange *range)
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{
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g_return_val_if_fail (range != NULL, NULL);
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g_return_val_if_fail (GTK_IS_RANGE (range), NULL);
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return range->adjustment;
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}
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void
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gtk_range_set_update_policy (GtkRange *range,
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GtkUpdateType policy)
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{
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_RANGE (range));
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range->policy = policy;
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}
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void
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gtk_range_set_adjustment (GtkRange *range,
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GtkAdjustment *adjustment)
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{
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_RANGE (range));
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if (range->adjustment != adjustment)
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{
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if (range->adjustment)
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{
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gtk_signal_disconnect_by_data (GTK_OBJECT (range->adjustment),
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(gpointer) range);
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gtk_object_unref (GTK_OBJECT (range->adjustment));
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}
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range->adjustment = adjustment;
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if (adjustment)
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{
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gtk_object_ref (GTK_OBJECT (adjustment));
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gtk_signal_connect (GTK_OBJECT (adjustment), "changed",
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(GtkSignalFunc) gtk_range_adjustment_changed,
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(gpointer) range);
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gtk_signal_connect (GTK_OBJECT (adjustment), "value_changed",
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(GtkSignalFunc) gtk_range_adjustment_value_changed,
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(gpointer) range);
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range->old_value = adjustment->value;
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range->old_lower = adjustment->lower;
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range->old_upper = adjustment->upper;
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range->old_page_size = adjustment->page_size;
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gtk_range_adjustment_changed (adjustment, (gpointer) range);
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}
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}
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}
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void
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gtk_range_draw_background (GtkRange *range)
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{
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_RANGE (range));
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if (range->trough && RANGE_CLASS (range)->draw_background)
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(* RANGE_CLASS (range)->draw_background) (range);
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}
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void
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gtk_range_draw_trough (GtkRange *range)
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{
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_RANGE (range));
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if (range->trough && RANGE_CLASS (range)->draw_trough)
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(* RANGE_CLASS (range)->draw_trough) (range);
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}
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void
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gtk_range_draw_slider (GtkRange *range)
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{
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_RANGE (range));
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if (range->slider && RANGE_CLASS (range)->draw_slider)
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(* RANGE_CLASS (range)->draw_slider) (range);
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}
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void
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gtk_range_draw_step_forw (GtkRange *range)
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{
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_RANGE (range));
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if (range->step_forw && RANGE_CLASS (range)->draw_step_forw)
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(* RANGE_CLASS (range)->draw_step_forw) (range);
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}
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void
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gtk_range_draw_step_back (GtkRange *range)
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{
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_RANGE (range));
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if (range->step_back && RANGE_CLASS (range)->draw_step_back)
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(* RANGE_CLASS (range)->draw_step_back) (range);
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}
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void
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gtk_range_slider_update (GtkRange *range)
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{
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_RANGE (range));
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if (RANGE_CLASS (range)->slider_update)
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(* RANGE_CLASS (range)->slider_update) (range);
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}
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gint
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gtk_range_trough_click (GtkRange *range,
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gint x,
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gint y)
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{
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g_return_val_if_fail (range != NULL, GTK_TROUGH_NONE);
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g_return_val_if_fail (GTK_IS_RANGE (range), GTK_TROUGH_NONE);
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if (RANGE_CLASS (range)->trough_click)
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return (* RANGE_CLASS (range)->trough_click) (range, x, y);
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return GTK_TROUGH_NONE;
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}
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void
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gtk_range_default_hslider_update (GtkRange *range)
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{
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gint left;
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gint right;
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gint x;
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_RANGE (range));
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if (GTK_WIDGET_REALIZED (range))
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{
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gtk_range_trough_hdims (range, &left, &right);
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x = left;
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if (range->adjustment->value < range->adjustment->lower)
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{
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range->adjustment->value = range->adjustment->lower;
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gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment), "value_changed");
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}
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else if (range->adjustment->value > range->adjustment->upper)
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{
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range->adjustment->value = range->adjustment->upper;
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gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment), "value_changed");
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}
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if (range->adjustment->lower != (range->adjustment->upper - range->adjustment->page_size))
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x += ((right - left) * (range->adjustment->value - range->adjustment->lower) /
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(range->adjustment->upper - range->adjustment->lower - range->adjustment->page_size));
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if (x < left)
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x = left;
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else if (x > right)
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x = right;
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gdk_window_move (range->slider, x, GTK_WIDGET (range)->style->klass->ythickness);
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}
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}
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void
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gtk_range_default_vslider_update (GtkRange *range)
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{
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gint top;
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gint bottom;
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gint y;
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_RANGE (range));
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if (GTK_WIDGET_REALIZED (range))
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{
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gtk_range_trough_vdims (range, &top, &bottom);
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y = top;
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if (range->adjustment->value < range->adjustment->lower)
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{
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range->adjustment->value = range->adjustment->lower;
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gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment), "value_changed");
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}
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else if (range->adjustment->value > range->adjustment->upper)
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{
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range->adjustment->value = range->adjustment->upper;
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gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment), "value_changed");
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}
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if (range->adjustment->lower != (range->adjustment->upper - range->adjustment->page_size))
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y += ((bottom - top) * (range->adjustment->value - range->adjustment->lower) /
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(range->adjustment->upper - range->adjustment->lower - range->adjustment->page_size));
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if (y < top)
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y = top;
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else if (y > bottom)
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y = bottom;
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gdk_window_move (range->slider, GTK_WIDGET (range)->style->klass->ythickness, y);
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}
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}
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gint
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gtk_range_default_htrough_click (GtkRange *range,
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gint x,
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gint y)
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{
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gint xthickness;
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gint ythickness;
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gint trough_width;
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gint trough_height;
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gint slider_x;
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g_return_val_if_fail (range != NULL, GTK_TROUGH_NONE);
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g_return_val_if_fail (GTK_IS_RANGE (range), GTK_TROUGH_NONE);
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xthickness = GTK_WIDGET (range)->style->klass->xthickness;
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ythickness = GTK_WIDGET (range)->style->klass->ythickness;
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if ((x > xthickness) && (y > ythickness))
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{
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gdk_window_get_size (range->trough, &trough_width, &trough_height);
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if ((x < (trough_width - xthickness) && (y < (trough_height - ythickness))))
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{
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gdk_window_get_position (range->slider, &slider_x, NULL);
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if (x < slider_x)
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return GTK_TROUGH_START;
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else
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return GTK_TROUGH_END;
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}
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}
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return GTK_TROUGH_NONE;
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}
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gint
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gtk_range_default_vtrough_click (GtkRange *range,
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gint x,
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gint y)
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{
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gint xthickness;
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gint ythickness;
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gint trough_width;
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gint trough_height;
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gint slider_y;
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g_return_val_if_fail (range != NULL, GTK_TROUGH_NONE);
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g_return_val_if_fail (GTK_IS_RANGE (range), GTK_TROUGH_NONE);
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xthickness = GTK_WIDGET (range)->style->klass->xthickness;
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ythickness = GTK_WIDGET (range)->style->klass->ythickness;
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if ((x > xthickness) && (y > ythickness))
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{
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gdk_window_get_size (range->trough, &trough_width, &trough_height);
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if ((x < (trough_width - xthickness) && (y < (trough_height - ythickness))))
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{
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gdk_window_get_position (range->slider, NULL, &slider_y);
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if (y < slider_y)
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return GTK_TROUGH_START;
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else
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return GTK_TROUGH_END;
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}
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}
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return GTK_TROUGH_NONE;
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}
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void
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gtk_range_default_hmotion (GtkRange *range,
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gint xdelta,
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gint ydelta)
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{
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gdouble old_value;
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gint left, right;
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gint slider_x, slider_y;
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gint new_pos;
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_RANGE (range));
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range = GTK_RANGE (range);
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gdk_window_get_position (range->slider, &slider_x, &slider_y);
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gtk_range_trough_hdims (range, &left, &right);
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if (left == right)
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return;
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new_pos = slider_x + xdelta;
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if (new_pos < left)
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new_pos = left;
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else if (new_pos > right)
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new_pos = right;
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old_value = range->adjustment->value;
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range->adjustment->value = ((range->adjustment->upper -
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range->adjustment->lower -
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range->adjustment->page_size) *
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(new_pos - left) / (right - left) +
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range->adjustment->lower);
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if (range->digits >= 0)
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{
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char buffer[64];
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sprintf (buffer, "%0.*f", range->digits, range->adjustment->value);
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sscanf (buffer, "%f", &range->adjustment->value);
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}
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if (old_value != range->adjustment->value)
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{
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if (range->policy == GTK_UPDATE_CONTINUOUS)
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{
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gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment), "value_changed");
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}
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else
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{
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gtk_range_slider_update (range);
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gtk_range_draw_background (range);
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|
|
if (range->policy == GTK_UPDATE_DELAYED)
|
|
{
|
|
gtk_range_remove_timer (range);
|
|
range->timer = gtk_timeout_add (SCROLL_DELAY_LENGTH,
|
|
(GtkFunction) RANGE_CLASS (range)->timer,
|
|
(gpointer) range);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_range_default_vmotion (GtkRange *range,
|
|
gint xdelta,
|
|
gint ydelta)
|
|
{
|
|
gdouble old_value;
|
|
gint top, bottom;
|
|
gint slider_x, slider_y;
|
|
gint new_pos;
|
|
|
|
g_return_if_fail (range != NULL);
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
range = GTK_RANGE (range);
|
|
|
|
gdk_window_get_position (range->slider, &slider_x, &slider_y);
|
|
gtk_range_trough_vdims (range, &top, &bottom);
|
|
|
|
if (bottom == top)
|
|
return;
|
|
|
|
new_pos = slider_y + ydelta;
|
|
|
|
if (new_pos < top)
|
|
new_pos = top;
|
|
else if (new_pos > bottom)
|
|
new_pos = bottom;
|
|
|
|
old_value = range->adjustment->value;
|
|
range->adjustment->value = ((range->adjustment->upper -
|
|
range->adjustment->lower -
|
|
range->adjustment->page_size) *
|
|
(new_pos - top) / (bottom - top) +
|
|
range->adjustment->lower);
|
|
|
|
if (range->digits >= 0)
|
|
{
|
|
char buffer[64];
|
|
|
|
sprintf (buffer, "%0.*f", range->digits, range->adjustment->value);
|
|
sscanf (buffer, "%f", &range->adjustment->value);
|
|
}
|
|
|
|
if (old_value != range->adjustment->value)
|
|
{
|
|
if (range->policy == GTK_UPDATE_CONTINUOUS)
|
|
{
|
|
gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment), "value_changed");
|
|
}
|
|
else
|
|
{
|
|
gtk_range_slider_update (range);
|
|
gtk_range_draw_background (range);
|
|
|
|
if (range->policy == GTK_UPDATE_DELAYED)
|
|
{
|
|
gtk_range_remove_timer (range);
|
|
range->timer = gtk_timeout_add (SCROLL_DELAY_LENGTH,
|
|
(GtkFunction) RANGE_CLASS (range)->timer,
|
|
(gpointer) range);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
gfloat
|
|
gtk_range_calc_value (GtkRange *range,
|
|
gint position)
|
|
{
|
|
return 0.0;
|
|
}
|
|
|
|
|
|
static void
|
|
gtk_range_destroy (GtkObject *object)
|
|
{
|
|
GtkRange *range;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (GTK_IS_RANGE (object));
|
|
|
|
range = GTK_RANGE (object);
|
|
|
|
if (range->adjustment)
|
|
gtk_object_unref (GTK_OBJECT (range->adjustment));
|
|
|
|
if (GTK_OBJECT_CLASS (parent_class)->destroy)
|
|
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
|
|
}
|
|
|
|
static void
|
|
gtk_range_draw (GtkWidget *widget,
|
|
GdkRectangle *area)
|
|
{
|
|
GtkRange *range;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_RANGE (widget));
|
|
g_return_if_fail (area != NULL);
|
|
|
|
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_MAPPED (widget))
|
|
{
|
|
range = GTK_RANGE (widget);
|
|
|
|
gtk_range_draw_background (range);
|
|
gtk_range_draw_trough (range);
|
|
gtk_range_draw_slider (range);
|
|
gtk_range_draw_step_forw (range);
|
|
gtk_range_draw_step_back (range);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_range_draw_focus (GtkWidget *widget)
|
|
{
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_RANGE (widget));
|
|
|
|
if (GTK_WIDGET_DRAWABLE (widget))
|
|
gtk_range_draw_trough (GTK_RANGE (widget));
|
|
}
|
|
|
|
static void
|
|
gtk_range_unrealize (GtkWidget *widget)
|
|
{
|
|
GtkRange *range;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_RANGE (widget));
|
|
|
|
GTK_WIDGET_UNSET_FLAGS (widget, GTK_REALIZED);
|
|
range = GTK_RANGE (widget);
|
|
|
|
gtk_style_detach (widget->style);
|
|
|
|
if (range->slider)
|
|
gdk_window_destroy (range->slider);
|
|
if (range->trough)
|
|
gdk_window_destroy (range->trough);
|
|
if (range->step_forw)
|
|
gdk_window_destroy (range->step_forw);
|
|
if (range->step_back)
|
|
gdk_window_destroy (range->step_back);
|
|
if (widget->window)
|
|
gdk_window_destroy (widget->window);
|
|
|
|
range->slider = NULL;
|
|
range->trough = NULL;
|
|
range->step_forw = NULL;
|
|
range->step_back = NULL;
|
|
widget->window = NULL;
|
|
}
|
|
|
|
static gint
|
|
gtk_range_expose (GtkWidget *widget,
|
|
GdkEventExpose *event)
|
|
{
|
|
GtkRange *range;
|
|
|
|
g_return_val_if_fail (widget != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_RANGE (widget), FALSE);
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
range = GTK_RANGE (widget);
|
|
|
|
if (event->window == range->trough)
|
|
{
|
|
gtk_range_draw_trough (range);
|
|
}
|
|
else if (event->window == widget->window)
|
|
{
|
|
gtk_range_draw_background (range);
|
|
}
|
|
else if (event->window == range->slider)
|
|
{
|
|
gtk_range_draw_slider (range);
|
|
}
|
|
else if (event->window == range->step_forw)
|
|
{
|
|
gtk_range_draw_step_forw (range);
|
|
}
|
|
else if (event->window == range->step_back)
|
|
{
|
|
gtk_range_draw_step_back (range);
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_range_button_press (GtkWidget *widget,
|
|
GdkEventButton *event)
|
|
{
|
|
GtkRange *range;
|
|
gint trough_part;
|
|
|
|
g_return_val_if_fail (widget != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_RANGE (widget), FALSE);
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
if (!GTK_WIDGET_HAS_FOCUS (widget))
|
|
gtk_widget_grab_focus (widget);
|
|
|
|
range = GTK_RANGE (widget);
|
|
if (!range->button)
|
|
{
|
|
gtk_grab_add (widget);
|
|
|
|
range->button = event->button;
|
|
range->x_click_point = event->x;
|
|
range->y_click_point = event->y;
|
|
|
|
if (event->window == range->trough)
|
|
{
|
|
range->click_child = RANGE_CLASS (range)->trough;
|
|
|
|
trough_part = gtk_range_trough_click (range, event->x, event->y);
|
|
|
|
range->scroll_type = GTK_SCROLL_NONE;
|
|
if (trough_part == GTK_TROUGH_START)
|
|
range->scroll_type = GTK_SCROLL_PAGE_BACKWARD;
|
|
else if (trough_part == GTK_TROUGH_END)
|
|
range->scroll_type = GTK_SCROLL_PAGE_FORWARD;
|
|
|
|
if (range->scroll_type != GTK_SCROLL_NONE)
|
|
{
|
|
gtk_range_scroll (range);
|
|
gtk_range_add_timer (range);
|
|
}
|
|
}
|
|
else if (event->window == range->slider)
|
|
{
|
|
range->click_child = RANGE_CLASS (range)->slider;
|
|
range->scroll_type = GTK_SCROLL_NONE;
|
|
}
|
|
else if (event->window == range->step_forw)
|
|
{
|
|
range->click_child = RANGE_CLASS (range)->step_forw;
|
|
range->scroll_type = GTK_SCROLL_STEP_FORWARD;
|
|
|
|
gtk_range_scroll (range);
|
|
gtk_range_add_timer (range);
|
|
gtk_range_draw_step_forw (range);
|
|
}
|
|
else if (event->window == range->step_back)
|
|
{
|
|
range->click_child = RANGE_CLASS (range)->step_back;
|
|
range->scroll_type = GTK_SCROLL_STEP_BACKWARD;
|
|
|
|
gtk_range_scroll (range);
|
|
gtk_range_add_timer (range);
|
|
gtk_range_draw_step_back (range);
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_range_button_release (GtkWidget *widget,
|
|
GdkEventButton *event)
|
|
{
|
|
GtkRange *range;
|
|
|
|
g_return_val_if_fail (widget != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_RANGE (widget), FALSE);
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
range = GTK_RANGE (widget);
|
|
|
|
if (range->button == event->button)
|
|
{
|
|
gtk_grab_remove (widget);
|
|
|
|
range->button = 0;
|
|
range->x_click_point = -1;
|
|
range->y_click_point = -1;
|
|
|
|
if (range->click_child == RANGE_CLASS (range)->slider)
|
|
{
|
|
if (range->policy == GTK_UPDATE_DELAYED)
|
|
gtk_range_remove_timer (range);
|
|
|
|
if ((range->policy != GTK_UPDATE_CONTINUOUS) &&
|
|
(range->old_value != range->adjustment->value))
|
|
gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment), "value_changed");
|
|
}
|
|
else if ((range->click_child == RANGE_CLASS (range)->trough) ||
|
|
(range->click_child == RANGE_CLASS (range)->step_forw) ||
|
|
(range->click_child == RANGE_CLASS (range)->step_back))
|
|
{
|
|
gtk_range_remove_timer (range);
|
|
|
|
if ((range->policy != GTK_UPDATE_CONTINUOUS) &&
|
|
(range->old_value != range->adjustment->value))
|
|
gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment), "value_changed");
|
|
|
|
if (range->click_child == RANGE_CLASS (range)->step_forw)
|
|
{
|
|
range->click_child = 0;
|
|
gtk_range_draw_step_forw (range);
|
|
}
|
|
else if (range->click_child == RANGE_CLASS (range)->step_back)
|
|
{
|
|
range->click_child = 0;
|
|
gtk_range_draw_step_back (range);
|
|
}
|
|
}
|
|
|
|
range->click_child = 0;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_range_motion_notify (GtkWidget *widget,
|
|
GdkEventMotion *event)
|
|
{
|
|
GtkRange *range;
|
|
GdkModifierType mods;
|
|
gint x, y, mask;
|
|
|
|
g_return_val_if_fail (widget != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_RANGE (widget), FALSE);
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
range = GTK_RANGE (widget);
|
|
|
|
if (range->click_child == RANGE_CLASS (range)->slider)
|
|
{
|
|
x = event->x;
|
|
y = event->y;
|
|
|
|
if (event->is_hint || (event->window != range->slider))
|
|
gdk_window_get_pointer (range->slider, &x, &y, &mods);
|
|
|
|
switch (range->button)
|
|
{
|
|
case 1:
|
|
mask = GDK_BUTTON1_MASK;
|
|
break;
|
|
case 2:
|
|
mask = GDK_BUTTON2_MASK;
|
|
break;
|
|
case 3:
|
|
mask = GDK_BUTTON3_MASK;
|
|
break;
|
|
default:
|
|
mask = 0;
|
|
break;
|
|
}
|
|
|
|
if (mods & mask)
|
|
{
|
|
if (RANGE_CLASS (range)->motion)
|
|
(* RANGE_CLASS (range)->motion) (range, x - range->x_click_point, y - range->y_click_point);
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_range_key_press (GtkWidget *widget,
|
|
GdkEventKey *event)
|
|
{
|
|
GtkRange *range;
|
|
gint return_val;
|
|
GtkScrollType scroll = GTK_SCROLL_NONE;
|
|
GtkTroughType pos = GTK_TROUGH_NONE;
|
|
|
|
g_return_val_if_fail (widget != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_RANGE (widget), FALSE);
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
range = GTK_RANGE (widget);
|
|
return_val = FALSE;
|
|
|
|
if (RANGE_CLASS (range)->trough_keys)
|
|
return_val = (* RANGE_CLASS (range)->trough_keys) (range, event, &scroll, &pos);
|
|
|
|
if (return_val)
|
|
{
|
|
if (scroll != GTK_SCROLL_NONE)
|
|
{
|
|
range->scroll_type = scroll;
|
|
gtk_range_scroll (range);
|
|
if (range->old_value != range->adjustment->value)
|
|
{
|
|
gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment), "value_changed");
|
|
switch (range->scroll_type)
|
|
{
|
|
case GTK_SCROLL_STEP_BACKWARD:
|
|
gtk_range_draw_step_back (range);
|
|
break;
|
|
case GTK_SCROLL_STEP_FORWARD:
|
|
gtk_range_draw_step_forw (range);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (pos != GTK_TROUGH_NONE)
|
|
{
|
|
if (pos == GTK_TROUGH_START)
|
|
range->adjustment->value = range->adjustment->lower;
|
|
else
|
|
range->adjustment->value =
|
|
range->adjustment->upper - range->adjustment->page_size;
|
|
|
|
if (range->old_value != range->adjustment->value)
|
|
{
|
|
gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment),
|
|
"value_changed");
|
|
|
|
gtk_range_slider_update (range);
|
|
gtk_range_draw_background (range);
|
|
}
|
|
}
|
|
}
|
|
return return_val;
|
|
}
|
|
|
|
static gint
|
|
gtk_range_enter_notify (GtkWidget *widget,
|
|
GdkEventCrossing *event)
|
|
{
|
|
GtkRange *range;
|
|
|
|
g_return_val_if_fail (widget != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_RANGE (widget), FALSE);
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
range = GTK_RANGE (widget);
|
|
|
|
if (event->window == range->trough)
|
|
{
|
|
range->in_child = RANGE_CLASS (range)->trough;
|
|
}
|
|
else if (event->window == range->slider)
|
|
{
|
|
range->in_child = RANGE_CLASS (range)->slider;
|
|
|
|
if ((range->click_child == 0) ||
|
|
(range->click_child == RANGE_CLASS (range)->trough))
|
|
gtk_range_draw_slider (range);
|
|
}
|
|
else if (event->window == range->step_forw)
|
|
{
|
|
range->in_child = RANGE_CLASS (range)->step_forw;
|
|
|
|
if ((range->click_child == 0) ||
|
|
(range->click_child == RANGE_CLASS (range)->trough))
|
|
gtk_range_draw_step_forw (range);
|
|
}
|
|
else if (event->window == range->step_back)
|
|
{
|
|
range->in_child = RANGE_CLASS (range)->step_back;
|
|
|
|
if ((range->click_child == 0) ||
|
|
(range->click_child == RANGE_CLASS (range)->trough))
|
|
gtk_range_draw_step_back (range);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_range_leave_notify (GtkWidget *widget,
|
|
GdkEventCrossing *event)
|
|
{
|
|
GtkRange *range;
|
|
|
|
g_return_val_if_fail (widget != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_RANGE (widget), FALSE);
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
range = GTK_RANGE (widget);
|
|
|
|
range->in_child = 0;
|
|
|
|
if (event->window == range->trough)
|
|
{
|
|
}
|
|
else if (event->window == range->slider)
|
|
{
|
|
if ((range->click_child == 0) ||
|
|
(range->click_child == RANGE_CLASS (range)->trough))
|
|
gtk_range_draw_slider (range);
|
|
}
|
|
else if (event->window == range->step_forw)
|
|
{
|
|
if ((range->click_child == 0) ||
|
|
(range->click_child == RANGE_CLASS (range)->trough))
|
|
gtk_range_draw_step_forw (range);
|
|
}
|
|
else if (event->window == range->step_back)
|
|
{
|
|
if ((range->click_child == 0) ||
|
|
(range->click_child == RANGE_CLASS (range)->trough))
|
|
gtk_range_draw_step_back (range);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_range_focus_in (GtkWidget *widget,
|
|
GdkEventFocus *event)
|
|
{
|
|
g_return_val_if_fail (widget != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_RANGE (widget), FALSE);
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
|
|
gtk_widget_draw_focus (widget);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_range_focus_out (GtkWidget *widget,
|
|
GdkEventFocus *event)
|
|
{
|
|
g_return_val_if_fail (widget != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_RANGE (widget), FALSE);
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
|
|
gtk_widget_draw_focus (widget);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_real_range_draw_trough (GtkRange *range)
|
|
{
|
|
g_return_if_fail (range != NULL);
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
if (range->trough)
|
|
{
|
|
gtk_draw_shadow (GTK_WIDGET (range)->style, range->trough,
|
|
GTK_STATE_NORMAL, GTK_SHADOW_IN,
|
|
0, 0, -1, -1);
|
|
|
|
if (GTK_WIDGET_HAS_FOCUS (range))
|
|
gdk_draw_rectangle (GTK_WIDGET (range)->window,
|
|
GTK_WIDGET (range)->style->black_gc,
|
|
FALSE, 0, 0,
|
|
GTK_WIDGET (range)->allocation.width - 1,
|
|
GTK_WIDGET (range)->allocation.height - 1);
|
|
else if (range->trough != GTK_WIDGET (range)->window)
|
|
gdk_draw_rectangle (GTK_WIDGET (range)->window,
|
|
GTK_WIDGET (range)->style->bg_gc[GTK_STATE_NORMAL],
|
|
FALSE, 0, 0,
|
|
GTK_WIDGET (range)->allocation.width - 1,
|
|
GTK_WIDGET (range)->allocation.height - 1);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_real_range_draw_slider (GtkRange *range)
|
|
{
|
|
GtkStateType state_type;
|
|
|
|
g_return_if_fail (range != NULL);
|
|
g_return_if_fail (GTK_IS_RANGE (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_style_set_background (GTK_WIDGET (range)->style, range->slider, state_type);
|
|
gdk_window_clear (range->slider);
|
|
|
|
gtk_draw_shadow (GTK_WIDGET (range)->style, range->slider,
|
|
state_type, GTK_SHADOW_OUT,
|
|
0, 0, -1, -1);
|
|
}
|
|
}
|
|
|
|
static gint
|
|
gtk_real_range_timer (GtkRange *range)
|
|
{
|
|
gint return_val;
|
|
|
|
g_return_val_if_fail (range != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
|
|
|
|
return_val = TRUE;
|
|
if (range->click_child == RANGE_CLASS (range)->slider)
|
|
{
|
|
if (range->policy == GTK_UPDATE_DELAYED)
|
|
gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment), "value_changed");
|
|
return_val = FALSE;
|
|
}
|
|
else
|
|
{
|
|
if (!range->timer)
|
|
{
|
|
return_val = FALSE;
|
|
if (range->need_timer)
|
|
range->timer = gtk_timeout_add (SCROLL_TIMER_LENGTH,
|
|
(GtkFunction) RANGE_CLASS (range)->timer,
|
|
(gpointer) range);
|
|
else
|
|
return FALSE;
|
|
range->need_timer = FALSE;
|
|
}
|
|
|
|
if (gtk_range_scroll (range))
|
|
return return_val;
|
|
}
|
|
|
|
return return_val;
|
|
}
|
|
|
|
static gint
|
|
gtk_range_scroll (GtkRange *range)
|
|
{
|
|
gfloat new_value;
|
|
gint return_val;
|
|
|
|
g_return_val_if_fail (range != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
|
|
|
|
new_value = range->adjustment->value;
|
|
return_val = TRUE;
|
|
|
|
switch (range->scroll_type)
|
|
{
|
|
case GTK_SCROLL_NONE:
|
|
break;
|
|
|
|
case GTK_SCROLL_STEP_BACKWARD:
|
|
new_value -= range->adjustment->step_increment;
|
|
if (new_value <= range->adjustment->lower)
|
|
{
|
|
new_value = range->adjustment->lower;
|
|
return_val = FALSE;
|
|
range->timer = 0;
|
|
}
|
|
break;
|
|
|
|
case GTK_SCROLL_STEP_FORWARD:
|
|
new_value += range->adjustment->step_increment;
|
|
if (new_value >= (range->adjustment->upper - range->adjustment->page_size))
|
|
{
|
|
new_value = range->adjustment->upper - range->adjustment->page_size;
|
|
return_val = FALSE;
|
|
range->timer = 0;
|
|
}
|
|
break;
|
|
|
|
case GTK_SCROLL_PAGE_BACKWARD:
|
|
new_value -= range->adjustment->page_increment;
|
|
if (new_value <= range->adjustment->lower)
|
|
{
|
|
new_value = range->adjustment->lower;
|
|
return_val = FALSE;
|
|
range->timer = 0;
|
|
}
|
|
break;
|
|
|
|
case GTK_SCROLL_PAGE_FORWARD:
|
|
new_value += range->adjustment->page_increment;
|
|
if (new_value >= (range->adjustment->upper - range->adjustment->page_size))
|
|
{
|
|
new_value = range->adjustment->upper - range->adjustment->page_size;
|
|
return_val = FALSE;
|
|
range->timer = 0;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (new_value != range->adjustment->value)
|
|
{
|
|
range->adjustment->value = new_value;
|
|
|
|
if ((range->policy == GTK_UPDATE_CONTINUOUS) ||
|
|
(!return_val && (range->policy == GTK_UPDATE_DELAYED)))
|
|
{
|
|
gtk_signal_emit_by_name (GTK_OBJECT (range->adjustment), "value_changed");
|
|
}
|
|
else
|
|
{
|
|
gtk_range_slider_update (range);
|
|
gtk_range_draw_background (range);
|
|
}
|
|
}
|
|
|
|
return return_val;
|
|
}
|
|
|
|
|
|
static void
|
|
gtk_range_add_timer (GtkRange *range)
|
|
{
|
|
g_return_if_fail (range != NULL);
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
if (!range->timer)
|
|
{
|
|
range->need_timer = TRUE;
|
|
range->timer = gtk_timeout_add (SCROLL_INITIAL_DELAY,
|
|
(GtkFunction) RANGE_CLASS (range)->timer,
|
|
(gpointer) range);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_range_remove_timer (GtkRange *range)
|
|
{
|
|
g_return_if_fail (range != NULL);
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
if (range->timer)
|
|
{
|
|
gtk_timeout_remove (range->timer);
|
|
range->timer = 0;
|
|
}
|
|
range->need_timer = FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_range_adjustment_changed (GtkAdjustment *adjustment,
|
|
gpointer data)
|
|
{
|
|
GtkRange *range;
|
|
|
|
g_return_if_fail (adjustment != NULL);
|
|
g_return_if_fail (data != NULL);
|
|
|
|
range = GTK_RANGE (data);
|
|
|
|
if (((range->old_lower != adjustment->lower) ||
|
|
(range->old_upper != adjustment->upper) ||
|
|
(range->old_page_size != adjustment->page_size)) &&
|
|
(range->old_value == adjustment->value))
|
|
{
|
|
if ((adjustment->lower == adjustment->upper) ||
|
|
(range->old_lower == (range->old_upper - range->old_page_size)))
|
|
{
|
|
adjustment->value = adjustment->lower;
|
|
gtk_signal_emit_by_name (GTK_OBJECT (adjustment), "value_changed");
|
|
}
|
|
}
|
|
|
|
if ((range->old_value != adjustment->value) ||
|
|
(range->old_lower != adjustment->lower) ||
|
|
(range->old_upper != adjustment->upper) ||
|
|
(range->old_page_size != adjustment->page_size))
|
|
{
|
|
gtk_range_slider_update (range);
|
|
gtk_range_draw_background (range);
|
|
|
|
range->old_value = adjustment->value;
|
|
range->old_lower = adjustment->lower;
|
|
range->old_upper = adjustment->upper;
|
|
range->old_page_size = adjustment->page_size;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
|
|
gpointer data)
|
|
{
|
|
GtkRange *range;
|
|
|
|
g_return_if_fail (adjustment != NULL);
|
|
g_return_if_fail (data != NULL);
|
|
|
|
range = GTK_RANGE (data);
|
|
|
|
if (range->old_value != adjustment->value)
|
|
{
|
|
gtk_range_slider_update (range);
|
|
gtk_range_draw_background (range);
|
|
|
|
range->old_value = adjustment->value;
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
gtk_range_trough_hdims (GtkRange *range,
|
|
gint *left,
|
|
gint *right)
|
|
{
|
|
gint trough_width;
|
|
gint slider_length;
|
|
gint tmp_width;
|
|
gint tleft;
|
|
gint tright;
|
|
|
|
g_return_if_fail (range != NULL);
|
|
|
|
gdk_window_get_size (range->trough, &trough_width, NULL);
|
|
gdk_window_get_size (range->slider, &slider_length, NULL);
|
|
|
|
tleft = GTK_WIDGET (range)->style->klass->xthickness;
|
|
tright = trough_width - slider_length - GTK_WIDGET (range)->style->klass->xthickness;
|
|
|
|
if (range->step_back)
|
|
{
|
|
gdk_window_get_size (range->step_back, &tmp_width, NULL);
|
|
tleft += (tmp_width + RANGE_CLASS (range)->stepper_slider_spacing);
|
|
}
|
|
|
|
if (range->step_forw)
|
|
{
|
|
gdk_window_get_size (range->step_forw, &tmp_width, NULL);
|
|
tright -= (tmp_width + RANGE_CLASS (range)->stepper_slider_spacing);
|
|
}
|
|
|
|
if (left)
|
|
*left = tleft;
|
|
if (right)
|
|
*right = tright;
|
|
}
|
|
|
|
static void
|
|
gtk_range_trough_vdims (GtkRange *range,
|
|
gint *top,
|
|
gint *bottom)
|
|
{
|
|
gint trough_height;
|
|
gint slider_length;
|
|
gint tmp_height;
|
|
gint ttop;
|
|
gint tbottom;
|
|
|
|
g_return_if_fail (range != NULL);
|
|
|
|
gdk_window_get_size (range->trough, NULL, &trough_height);
|
|
gdk_window_get_size (range->slider, NULL, &slider_length);
|
|
|
|
ttop = GTK_WIDGET (range)->style->klass->xthickness;
|
|
tbottom = trough_height - slider_length - GTK_WIDGET (range)->style->klass->ythickness;
|
|
|
|
if (range->step_back)
|
|
{
|
|
gdk_window_get_size (range->step_back, NULL, &tmp_height);
|
|
ttop += (tmp_height + RANGE_CLASS (range)->stepper_slider_spacing);
|
|
}
|
|
|
|
if (range->step_forw)
|
|
{
|
|
gdk_window_get_size (range->step_forw, NULL, &tmp_height);
|
|
tbottom -= (tmp_height + RANGE_CLASS (range)->stepper_slider_spacing);
|
|
}
|
|
|
|
if (top)
|
|
*top = ttop;
|
|
if (bottom)
|
|
*bottom = tbottom;
|
|
}
|