c944151a3c
Mon Apr 2 10:47:57 2001 Owen Taylor <otaylor@redhat.com> * gtk/gtkwidget.c (gtk_widget_class_init): Fix G_VALUE_NO_COPY_CONTENTS instead of G_SIGNAL_TYPE_STATIC_SCOPE stupidity. Mon Apr 2 00:51:11 2001 Owen Taylor <otaylor@redhat.com> [ First pass at adding style properties. Still needs some definite fine-tuning. ] * gtk/gtkbutton.c: Add ::default_spacing style property. * gtk/gtkcheckbutton.[ch] gtkradiobutton.c: Add ::indicator_size, ::indicator_spacing style properties. * gtk/gtkoptionmenu.c: Add ::indicator_size, ::indicator_spacing style properties. * gtk/gtk{,h,v}paned.[ch]: Make handle_size a style property rather than a normal property. * gtk/gtkwidget.c: Add an ::interior_focus style property to draw focus inside buttons, in the Windows/Java Metal/etc. style. * gtk/gtkbutton.c gtk/gtkcheckbutton.c gtk/gtktogglenbutton.c: Honor ::interior_focus. * gtk/gtkentry.c: Don't draw focus at all when ::interior_focus is TRUE. * gtk/gtkrange.[ch] gtk/gtk{h,v}scrollbar.c gtk/gtk{h,v}scale.c: Add ::slider_width, ::trough_border, ::stepper_size, ::stepper_spacing style properties. * gtk/gtkscale.[ch] Add ::slider-length style property.
498 lines
16 KiB
C
498 lines
16 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 Lesser 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "gtkvscrollbar.h"
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#include "gtksignal.h"
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#include "gdk/gdkkeysyms.h"
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#include "gtkintl.h"
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#define EPSILON 0.01
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#define RANGE_CLASS(w) GTK_RANGE_GET_CLASS (w)
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enum {
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PROP_0,
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PROP_ADJUSTMENT
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};
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static void gtk_vscrollbar_class_init (GtkVScrollbarClass *klass);
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static void gtk_vscrollbar_init (GtkVScrollbar *vscrollbar);
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static void gtk_vscrollbar_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_vscrollbar_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_vscrollbar_realize (GtkWidget *widget);
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static void gtk_vscrollbar_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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static void gtk_vscrollbar_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_vscrollbar_draw_step_forw (GtkRange *range);
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static void gtk_vscrollbar_draw_step_back (GtkRange *range);
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static void gtk_vscrollbar_slider_update (GtkRange *range);
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static void gtk_vscrollbar_calc_slider_size (GtkVScrollbar *vscrollbar);
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static gboolean gtk_vscrollbar_trough_keys (GtkRange *range,
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GdkEventKey *key,
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GtkScrollType *scroll,
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GtkTroughType *pos);
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GtkType
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gtk_vscrollbar_get_type (void)
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{
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static GtkType vscrollbar_type = 0;
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if (!vscrollbar_type)
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{
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static const GtkTypeInfo vscrollbar_info =
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{
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"GtkVScrollbar",
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sizeof (GtkVScrollbar),
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sizeof (GtkVScrollbarClass),
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(GtkClassInitFunc) gtk_vscrollbar_class_init,
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(GtkObjectInitFunc) gtk_vscrollbar_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL,
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};
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vscrollbar_type = gtk_type_unique (GTK_TYPE_SCROLLBAR, &vscrollbar_info);
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}
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return vscrollbar_type;
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}
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static void
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gtk_vscrollbar_class_init (GtkVScrollbarClass *class)
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{
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GObjectClass *gobject_class;
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GtkWidgetClass *widget_class;
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GtkRangeClass *range_class;
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gobject_class = G_OBJECT_CLASS (class);
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widget_class = (GtkWidgetClass*) class;
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range_class = (GtkRangeClass*) class;
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gobject_class->set_property = gtk_vscrollbar_set_property;
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gobject_class->get_property = gtk_vscrollbar_get_property;
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widget_class->realize = gtk_vscrollbar_realize;
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widget_class->size_request = gtk_vscrollbar_size_request;
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widget_class->size_allocate = gtk_vscrollbar_size_allocate;
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range_class->draw_step_forw = gtk_vscrollbar_draw_step_forw;
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range_class->draw_step_back = gtk_vscrollbar_draw_step_back;
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range_class->slider_update = gtk_vscrollbar_slider_update;
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range_class->trough_click = _gtk_range_default_vtrough_click;
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range_class->trough_keys = gtk_vscrollbar_trough_keys;
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range_class->motion = _gtk_range_default_vmotion;
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g_object_class_install_property (gobject_class,
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PROP_ADJUSTMENT,
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g_param_spec_object ("adjustment",
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_("Adjustment"),
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_("The GtkAdjustment that determines the values to use for this scrollbar."),
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GTK_TYPE_ADJUSTMENT,
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G_PARAM_READWRITE));
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}
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static void
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gtk_vscrollbar_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkVScrollbar *vscrollbar;
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vscrollbar = GTK_VSCROLLBAR (object);
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switch (prop_id)
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{
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case PROP_ADJUSTMENT:
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gtk_range_set_adjustment (GTK_RANGE (vscrollbar), g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_vscrollbar_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkVScrollbar *vscrollbar;
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vscrollbar = GTK_VSCROLLBAR (object);
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switch (prop_id)
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{
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case PROP_ADJUSTMENT:
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g_value_set_object (value, G_OBJECT (vscrollbar));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_vscrollbar_init (GtkVScrollbar *vscrollbar)
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{
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}
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GtkWidget*
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gtk_vscrollbar_new (GtkAdjustment *adjustment)
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{
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GtkWidget *vscrollbar;
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vscrollbar = gtk_widget_new (GTK_TYPE_VSCROLLBAR,
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"adjustment", adjustment,
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NULL);
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return vscrollbar;
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}
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static void
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gtk_vscrollbar_realize (GtkWidget *widget)
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{
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GtkRange *range;
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GdkWindowAttr attributes;
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gint attributes_mask;
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gint slider_width;
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gint stepper_size;
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gint trough_border;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_VSCROLLBAR (widget));
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GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
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range = GTK_RANGE (widget);
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_gtk_range_get_props (range, &slider_width, &trough_border,
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&stepper_size, NULL);
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attributes.x = widget->allocation.x + (widget->allocation.width - widget->requisition.width) / 2;
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attributes.y = widget->allocation.y;
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attributes.width = widget->requisition.width;
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attributes.height = widget->allocation.height;
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attributes.wclass = GDK_INPUT_OUTPUT;
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attributes.window_type = GDK_WINDOW_CHILD;
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attributes.visual = gtk_widget_get_visual (widget);
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attributes.colormap = gtk_widget_get_colormap (widget);
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attributes.event_mask = gtk_widget_get_events (widget);
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attributes.event_mask |= (GDK_EXPOSURE_MASK |
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GDK_BUTTON_PRESS_MASK |
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GDK_BUTTON_RELEASE_MASK |
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GDK_ENTER_NOTIFY_MASK |
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GDK_LEAVE_NOTIFY_MASK);
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attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
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widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
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range->trough = widget->window;
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gdk_window_ref (range->trough);
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attributes.x = trough_border;
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attributes.y = trough_border;
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attributes.width = stepper_size;
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attributes.height = stepper_size;
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range->step_back = gdk_window_new (range->trough, &attributes, attributes_mask);
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attributes.y = (widget->allocation.height -
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trough_border -
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stepper_size);
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range->step_forw = gdk_window_new (range->trough, &attributes, attributes_mask);
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attributes.x = trough_border;
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attributes.y = 0;
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attributes.width = slider_width;
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attributes.height = RANGE_CLASS (widget)->min_slider_size;
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attributes.event_mask |= (GDK_BUTTON_MOTION_MASK |
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GDK_POINTER_MOTION_HINT_MASK);
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range->slider = gdk_window_new (range->trough, &attributes, attributes_mask);
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gtk_vscrollbar_calc_slider_size (GTK_VSCROLLBAR (widget));
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_gtk_range_slider_update (GTK_RANGE (widget));
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widget->style = gtk_style_attach (widget->style, widget->window);
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gdk_window_set_user_data (range->trough, widget);
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gdk_window_set_user_data (range->slider, widget);
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gdk_window_set_user_data (range->step_forw, widget);
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gdk_window_set_user_data (range->step_back, widget);
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gtk_style_set_background (widget->style, range->trough, GTK_STATE_ACTIVE);
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gtk_style_set_background (widget->style, range->slider, GTK_STATE_NORMAL);
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gtk_style_set_background (widget->style, range->step_forw, GTK_STATE_ACTIVE);
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gtk_style_set_background (widget->style, range->step_back, GTK_STATE_ACTIVE);
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gdk_window_show (range->slider);
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gdk_window_show (range->step_forw);
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gdk_window_show (range->step_back);
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}
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static void
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gtk_vscrollbar_size_request (GtkWidget *widget,
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GtkRequisition *requisition)
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{
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gint slider_width;
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gint trough_border;
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gint stepper_size;
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gint stepper_spacing;
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GtkRange *range = GTK_RANGE (widget);
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_gtk_range_get_props (range, &slider_width, &trough_border,
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&stepper_size, &stepper_spacing);
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requisition->width = (slider_width +
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trough_border * 2);
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requisition->height = (RANGE_CLASS (widget)->min_slider_size +
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stepper_size +
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stepper_spacing +
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trough_border) * 2;
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}
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static void
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gtk_vscrollbar_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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GtkRange *range;
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gint trough_border;
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gint stepper_size;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_VSCROLLBAR (widget));
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g_return_if_fail (allocation != NULL);
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widget->allocation = *allocation;
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if (GTK_WIDGET_REALIZED (widget))
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{
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range = GTK_RANGE (widget);
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_gtk_range_get_props (range, NULL, &trough_border,
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&stepper_size, NULL);
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gdk_window_move_resize (range->trough,
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allocation->x + (allocation->width - widget->requisition.width) / 2,
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allocation->y,
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widget->requisition.width, allocation->height);
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gdk_window_move_resize (range->step_back,
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trough_border,
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trough_border,
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widget->requisition.width - trough_border * 2,
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stepper_size);
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gdk_window_move_resize (range->step_forw,
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trough_border,
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allocation->height - trough_border -
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stepper_size,
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widget->requisition.width - trough_border * 2,
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stepper_size);
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_gtk_range_slider_update (GTK_RANGE (widget));
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}
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}
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static void
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gtk_vscrollbar_draw_step_forw (GtkRange *range)
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{
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GtkStateType state_type;
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GtkShadowType shadow_type;
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_VSCROLLBAR (range));
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if (GTK_WIDGET_DRAWABLE (range))
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{
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if (range->in_child == RANGE_CLASS (range)->step_forw)
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{
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if (range->click_child == RANGE_CLASS (range)->step_forw)
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state_type = GTK_STATE_ACTIVE;
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else
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state_type = GTK_STATE_PRELIGHT;
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}
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else
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state_type = GTK_STATE_NORMAL;
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if (range->click_child == RANGE_CLASS (range)->step_forw)
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shadow_type = GTK_SHADOW_IN;
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else
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shadow_type = GTK_SHADOW_OUT;
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gtk_paint_arrow (GTK_WIDGET (range)->style, range->step_forw,
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state_type, shadow_type,
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NULL, GTK_WIDGET (range), "vscrollbar",
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GTK_ARROW_DOWN,
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TRUE, 0, 0, -1, -1);
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}
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}
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static void
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gtk_vscrollbar_draw_step_back (GtkRange *range)
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{
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GtkStateType state_type;
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GtkShadowType shadow_type;
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g_return_if_fail (range != NULL);
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g_return_if_fail (GTK_IS_VSCROLLBAR (range));
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if (GTK_WIDGET_DRAWABLE (range))
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{
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if (range->in_child == RANGE_CLASS (range)->step_back)
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{
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if (range->click_child == RANGE_CLASS (range)->step_back)
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state_type = GTK_STATE_ACTIVE;
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else
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state_type = GTK_STATE_PRELIGHT;
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}
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else
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state_type = GTK_STATE_NORMAL;
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if (range->click_child == RANGE_CLASS (range)->step_back)
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shadow_type = GTK_SHADOW_IN;
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else
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shadow_type = GTK_SHADOW_OUT;
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gtk_paint_arrow (GTK_WIDGET (range)->style, range->step_back,
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state_type, shadow_type,
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NULL, GTK_WIDGET (range), "vscrollbar",
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GTK_ARROW_UP,
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TRUE, 0, 0, -1, -1);
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}
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}
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static void
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gtk_vscrollbar_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_VSCROLLBAR (range));
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gtk_vscrollbar_calc_slider_size (GTK_VSCROLLBAR (range));
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_gtk_range_default_vslider_update (range);
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}
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static void
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gtk_vscrollbar_calc_slider_size (GtkVScrollbar *vscrollbar)
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{
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GtkRange *range;
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gint step_back_y;
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gint step_back_height;
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gint step_forw_y;
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gint stepper_spacing;
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gint slider_width;
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gint slider_height;
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gint top, bottom;
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gint height;
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g_return_if_fail (vscrollbar != NULL);
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g_return_if_fail (GTK_IS_VSCROLLBAR (vscrollbar));
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if (GTK_WIDGET_REALIZED (vscrollbar))
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{
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range = GTK_RANGE (vscrollbar);
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_gtk_range_get_props (range, NULL, NULL, NULL, &stepper_spacing);
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gdk_window_get_size (range->step_back, NULL, &step_back_height);
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gdk_window_get_position (range->step_back, NULL, &step_back_y);
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gdk_window_get_position (range->step_forw, NULL, &step_forw_y);
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top = (step_back_y +
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step_back_height +
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stepper_spacing);
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bottom = step_forw_y - stepper_spacing;
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height = bottom - top;
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if ((range->adjustment->page_size > 0) &&
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(range->adjustment->lower != range->adjustment->upper))
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{
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if (range->adjustment->page_size >
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(range->adjustment->upper - range->adjustment->lower))
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range->adjustment->page_size = range->adjustment->upper - range->adjustment->lower;
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height = (height * range->adjustment->page_size /
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(range->adjustment->upper - range->adjustment->lower));
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if (height < RANGE_CLASS (vscrollbar)->min_slider_size)
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height = RANGE_CLASS (vscrollbar)->min_slider_size;
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}
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gdk_window_get_size (range->slider, &slider_width, &slider_height);
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if (slider_height != height)
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{
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gdk_window_resize (range->slider, slider_width, height);
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gdk_window_invalidate_rect (range->slider, NULL, FALSE);
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}
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}
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}
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static gboolean
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gtk_vscrollbar_trough_keys (GtkRange *range,
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GdkEventKey *key,
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GtkScrollType *scroll,
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GtkTroughType *pos)
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{
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gint return_val = FALSE;
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switch (key->keyval)
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{
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case GDK_Up:
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return_val = TRUE;
|
|
*scroll = GTK_SCROLL_STEP_UP;
|
|
break;
|
|
case GDK_Down:
|
|
return_val = TRUE;
|
|
*scroll = GTK_SCROLL_STEP_DOWN;
|
|
break;
|
|
case GDK_Page_Up:
|
|
return_val = TRUE;
|
|
if (key->state & GDK_CONTROL_MASK)
|
|
*pos = GTK_TROUGH_START;
|
|
else
|
|
*scroll = GTK_SCROLL_PAGE_BACKWARD;
|
|
break;
|
|
case GDK_Page_Down:
|
|
return_val = TRUE;
|
|
if (key->state & GDK_CONTROL_MASK)
|
|
*pos = GTK_TROUGH_END;
|
|
else
|
|
*scroll = GTK_SCROLL_PAGE_FORWARD;
|
|
break;
|
|
}
|
|
return return_val;
|
|
}
|