-/* GTK - The GIMP Toolkit
- * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/*
- * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
- * file for a list of people on the GTK+ Team. See the ChangeLog
- * files for a list of changes. These files are distributed with
- * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
- */
-
-#include "config.h"
-#include <math.h>
-#include <string.h>
-
-#undef GTK_DISABLE_DEPRECATED
-#define __GTK_PROGRESS_C__
-
-#include "gtkprogress.h"
-#include "gtkprivate.h"
-#include "gtkintl.h"
-#include "gtkalias.h"
-
-#define EPSILON 1e-5
-#define DEFAULT_FORMAT "%P %%"
-
-enum {
- PROP_0,
- PROP_ACTIVITY_MODE,
- PROP_SHOW_TEXT,
- PROP_TEXT_XALIGN,
- PROP_TEXT_YALIGN
-};
-
-
-static void gtk_progress_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec);
-static void gtk_progress_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec);
-static void gtk_progress_destroy (GtkObject *object);
-static void gtk_progress_finalize (GObject *object);
-static void gtk_progress_realize (GtkWidget *widget);
-static gboolean gtk_progress_expose (GtkWidget *widget,
- GdkEventExpose *event);
-static void gtk_progress_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation);
-static void gtk_progress_create_pixmap (GtkProgress *progress);
-static void gtk_progress_value_changed (GtkAdjustment *adjustment,
- GtkProgress *progress);
-static void gtk_progress_changed (GtkAdjustment *adjustment,
- GtkProgress *progress);
-
-G_DEFINE_ABSTRACT_TYPE (GtkProgress, gtk_progress, GTK_TYPE_WIDGET)
-
-static void
-gtk_progress_class_init (GtkProgressClass *class)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (class);
- GtkObjectClass *object_class;
- GtkWidgetClass *widget_class;
-
- object_class = (GtkObjectClass *) class;
- widget_class = (GtkWidgetClass *) class;
-
- gobject_class->finalize = gtk_progress_finalize;
-
- gobject_class->set_property = gtk_progress_set_property;
- gobject_class->get_property = gtk_progress_get_property;
- object_class->destroy = gtk_progress_destroy;
-
- widget_class->realize = gtk_progress_realize;
- widget_class->expose_event = gtk_progress_expose;
- widget_class->size_allocate = gtk_progress_size_allocate;
-
- /* to be overridden */
- class->paint = NULL;
- class->update = NULL;
- class->act_mode_enter = NULL;
-
- g_object_class_install_property (gobject_class,
- PROP_ACTIVITY_MODE,
- g_param_spec_boolean ("activity-mode",
- P_("Activity mode"),
- P_("If TRUE, the GtkProgress is in activity mode, meaning that it signals "
- "something is happening, but not how much of the activity is finished. "
- "This is used when you're doing something but don't know how long it will take."),
- FALSE,
- GTK_PARAM_READWRITE));
- g_object_class_install_property (gobject_class,
- PROP_SHOW_TEXT,
- g_param_spec_boolean ("show-text",
- P_("Show text"),
- P_("Whether the progress is shown as text."),
- FALSE,
- GTK_PARAM_READWRITE));
- g_object_class_install_property (gobject_class,
- PROP_TEXT_XALIGN,
- g_param_spec_float ("text-xalign",
- P_("Text x alignment"),
- P_("The horizontal text alignment, from 0 (left) to 1 (right). Reversed for RTL layouts."),
- 0.0, 1.0, 0.5,
- GTK_PARAM_READWRITE));
- g_object_class_install_property (gobject_class,
- PROP_TEXT_YALIGN,
- g_param_spec_float ("text-yalign",
- P_("Text y alignment"),
- P_("The vertical text alignment, from 0 (top) to 1 (bottom)."),
- 0.0, 1.0, 0.5,
- GTK_PARAM_READWRITE));
-}
-
-static void
-gtk_progress_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- GtkProgress *progress;
-
- progress = GTK_PROGRESS (object);
-
- switch (prop_id)
- {
- case PROP_ACTIVITY_MODE:
- gtk_progress_set_activity_mode (progress, g_value_get_boolean (value));
- break;
- case PROP_SHOW_TEXT:
- gtk_progress_set_show_text (progress, g_value_get_boolean (value));
- break;
- case PROP_TEXT_XALIGN:
- gtk_progress_set_text_alignment (progress,
- g_value_get_float (value),
- progress->y_align);
- break;
- case PROP_TEXT_YALIGN:
- gtk_progress_set_text_alignment (progress,
- progress->x_align,
- g_value_get_float (value));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gtk_progress_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- GtkProgress *progress;
-
- progress = GTK_PROGRESS (object);
-
- switch (prop_id)
- {
- case PROP_ACTIVITY_MODE:
- g_value_set_boolean (value, (progress->activity_mode != FALSE));
- break;
- case PROP_SHOW_TEXT:
- g_value_set_boolean (value, (progress->show_text != FALSE));
- break;
- case PROP_TEXT_XALIGN:
- g_value_set_float (value, progress->x_align);
- break;
- case PROP_TEXT_YALIGN:
- g_value_set_float (value, progress->y_align);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gtk_progress_init (GtkProgress *progress)
-{
- progress->adjustment = NULL;
- progress->offscreen_pixmap = NULL;
- progress->format = g_strdup (DEFAULT_FORMAT);
- progress->x_align = 0.5;
- progress->y_align = 0.5;
- progress->show_text = FALSE;
- progress->activity_mode = FALSE;
- progress->use_text_format = TRUE;
-}
-
-static void
-gtk_progress_realize (GtkWidget *widget)
-{
- GtkProgress *progress = GTK_PROGRESS (widget);
- GdkWindowAttr attributes;
- gint attributes_mask;
-
- gtk_widget_set_realized (widget, TRUE);
-
- attributes.window_type = GDK_WINDOW_CHILD;
- attributes.x = widget->allocation.x;
- attributes.y = widget->allocation.y;
- attributes.width = widget->allocation.width;
- attributes.height = widget->allocation.height;
- 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;
-
- attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
-
- widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
- &attributes, attributes_mask);
- gdk_window_set_user_data (widget->window, progress);
-
- widget->style = gtk_style_attach (widget->style, widget->window);
- gtk_style_set_background (widget->style, widget->window, GTK_STATE_ACTIVE);
-
- gtk_progress_create_pixmap (progress);
-}
-
-static void
-gtk_progress_destroy (GtkObject *object)
-{
- GtkProgress *progress = GTK_PROGRESS (object);
-
- if (progress->adjustment)
- {
- g_signal_handlers_disconnect_by_func (progress->adjustment,
- gtk_progress_value_changed,
- progress);
- g_signal_handlers_disconnect_by_func (progress->adjustment,
- gtk_progress_changed,
- progress);
- g_object_unref (progress->adjustment);
- progress->adjustment = NULL;
- }
-
- GTK_OBJECT_CLASS (gtk_progress_parent_class)->destroy (object);
-}
-
-static void
-gtk_progress_finalize (GObject *object)
-{
- GtkProgress *progress = GTK_PROGRESS (object);
-
- if (progress->offscreen_pixmap)
- g_object_unref (progress->offscreen_pixmap);
-
- g_free (progress->format);
-
- G_OBJECT_CLASS (gtk_progress_parent_class)->finalize (object);
-}
-
-static gboolean
-gtk_progress_expose (GtkWidget *widget,
- GdkEventExpose *event)
-{
- if (gtk_widget_is_drawable (widget))
- gdk_draw_drawable (widget->window,
- widget->style->black_gc,
- GTK_PROGRESS (widget)->offscreen_pixmap,
- event->area.x, event->area.y,
- event->area.x, event->area.y,
- event->area.width,
- event->area.height);
-
- return FALSE;
-}
-
-static void
-gtk_progress_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
-{
- widget->allocation = *allocation;
-
- if (gtk_widget_get_realized (widget))
- {
- gdk_window_move_resize (widget->window,
- allocation->x, allocation->y,
- allocation->width, allocation->height);
-
- gtk_progress_create_pixmap (GTK_PROGRESS (widget));
- }
-}
-
-static void
-gtk_progress_create_pixmap (GtkProgress *progress)
-{
- GtkWidget *widget;
-
- g_return_if_fail (GTK_IS_PROGRESS (progress));
-
- widget = GTK_WIDGET (progress);
-
- if (gtk_widget_get_realized (widget))
- {
- if (progress->offscreen_pixmap)
- g_object_unref (progress->offscreen_pixmap);
-
- progress->offscreen_pixmap = gdk_pixmap_new (widget->window,
- widget->allocation.width,
- widget->allocation.height,
- -1);
-
- /* clear the pixmap for transparent themes */
- gtk_paint_flat_box (widget->style,
- progress->offscreen_pixmap,
- GTK_STATE_NORMAL, GTK_SHADOW_NONE,
- NULL, widget, "trough", 0, 0, -1, -1);
-
- GTK_PROGRESS_GET_CLASS (progress)->paint (progress);
- }
-}
-
-static void
-gtk_progress_changed (GtkAdjustment *adjustment,
- GtkProgress *progress)
-{
- /* A change in the value of adjustment->upper can change
- * the size request
- */
- if (progress->use_text_format && progress->show_text)
- gtk_widget_queue_resize (GTK_WIDGET (progress));
- else
- GTK_PROGRESS_GET_CLASS (progress)->update (progress);
-}
-
-static void
-gtk_progress_value_changed (GtkAdjustment *adjustment,
- GtkProgress *progress)
-{
- GTK_PROGRESS_GET_CLASS (progress)->update (progress);
-}
-
-static gchar *
-gtk_progress_build_string (GtkProgress *progress,
- gdouble value,
- gdouble percentage)
-{
- gchar buf[256] = { 0 };
- gchar tmp[256] = { 0 };
- gchar *src;
- gchar *dest;
- gchar fmt[10];
-
- src = progress->format;
-
- /* This is the new supported version of this function */
- if (!progress->use_text_format)
- return g_strdup (src);
-
- /* And here's all the deprecated goo. */
-
- dest = buf;
-
- while (src && *src)
- {
- if (*src != '%')
- {
- *dest = *src;
- dest++;
- }
- else
- {
- gchar c;
- gint digits;
-
- c = *(src + sizeof(gchar));
- digits = 0;
-
- if (c >= '0' && c <= '2')
- {
- digits = (gint) (c - '0');
- src++;
- c = *(src + sizeof(gchar));
- }
-
- switch (c)
- {
- case '%':
- *dest = '%';
- src++;
- dest++;
- break;
- case 'p':
- case 'P':
- if (digits)
- {
- g_snprintf (fmt, sizeof (fmt), "%%.%df", digits);
- g_snprintf (tmp, sizeof (tmp), fmt, 100 * percentage);
- }
- else
- g_snprintf (tmp, sizeof (tmp), "%.0f", 100 * percentage);
- strcat (buf, tmp);
- dest = &(buf[strlen (buf)]);
- src++;
- break;
- case 'v':
- case 'V':
- if (digits)
- {
- g_snprintf (fmt, sizeof (fmt), "%%.%df", digits);
- g_snprintf (tmp, sizeof (tmp), fmt, value);
- }
- else
- g_snprintf (tmp, sizeof (tmp), "%.0f", value);
- strcat (buf, tmp);
- dest = &(buf[strlen (buf)]);
- src++;
- break;
- case 'l':
- case 'L':
- if (digits)
- {
- g_snprintf (fmt, sizeof (fmt), "%%.%df", digits);
- g_snprintf (tmp, sizeof (tmp), fmt, progress->adjustment->lower);
- }
- else
- g_snprintf (tmp, sizeof (tmp), "%.0f", progress->adjustment->lower);
- strcat (buf, tmp);
- dest = &(buf[strlen (buf)]);
- src++;
- break;
- case 'u':
- case 'U':
- if (digits)
- {
- g_snprintf (fmt, sizeof (fmt), "%%.%df", digits);
- g_snprintf (tmp, sizeof (tmp), fmt, progress->adjustment->upper);
- }
- else
- g_snprintf (tmp, sizeof (tmp), "%.0f", progress->adjustment->upper);
- strcat (buf, tmp);
- dest = &(buf[strlen (buf)]);
- src++;
- break;
- default:
- break;
- }
- }
- src++;
- }
-
- return g_strdup (buf);
-}
-
-/***************************************************************/
-
-void
-gtk_progress_set_adjustment (GtkProgress *progress,
- GtkAdjustment *adjustment)
-{
- g_return_if_fail (GTK_IS_PROGRESS (progress));
- if (adjustment)
- g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
- else
- adjustment = (GtkAdjustment*) gtk_adjustment_new (0, 0, 100, 0, 0, 0);
-
- if (progress->adjustment != adjustment)
- {
- if (progress->adjustment)
- {
- g_signal_handlers_disconnect_by_func (progress->adjustment,
- gtk_progress_changed,
- progress);
- g_signal_handlers_disconnect_by_func (progress->adjustment,
- gtk_progress_value_changed,
- progress);
- g_object_unref (progress->adjustment);
- }
- progress->adjustment = adjustment;
- if (adjustment)
- {
- g_object_ref_sink (adjustment);
- g_signal_connect (adjustment, "changed",
- G_CALLBACK (gtk_progress_changed),
- progress);
- g_signal_connect (adjustment, "value-changed",
- G_CALLBACK (gtk_progress_value_changed),
- progress);
- }
-
- gtk_progress_changed (adjustment, progress);
- }
-}
-
-void
-gtk_progress_configure (GtkProgress *progress,
- gdouble value,
- gdouble min,
- gdouble max)
-{
- GtkAdjustment *adj;
- gboolean changed = FALSE;
-
- g_return_if_fail (GTK_IS_PROGRESS (progress));
- g_return_if_fail (min <= max);
- g_return_if_fail (value >= min && value <= max);
-
- if (!progress->adjustment)
- gtk_progress_set_adjustment (progress, NULL);
- adj = progress->adjustment;
-
- if (fabs (adj->lower - min) > EPSILON || fabs (adj->upper - max) > EPSILON)
- changed = TRUE;
-
- adj->value = value;
- adj->lower = min;
- adj->upper = max;
-
- gtk_adjustment_value_changed (adj);
- if (changed)
- gtk_adjustment_changed (adj);
-}
-
-void
-gtk_progress_set_percentage (GtkProgress *progress,
- gdouble percentage)
-{
- g_return_if_fail (GTK_IS_PROGRESS (progress));
- g_return_if_fail (percentage >= 0 && percentage <= 1.0);
-
- if (!progress->adjustment)
- gtk_progress_set_adjustment (progress, NULL);
- gtk_progress_set_value (progress, progress->adjustment->lower + percentage *
- (progress->adjustment->upper - progress->adjustment->lower));
-}
-
-gdouble
-gtk_progress_get_current_percentage (GtkProgress *progress)
-{
- g_return_val_if_fail (GTK_IS_PROGRESS (progress), 0);
-
- if (!progress->adjustment)
- gtk_progress_set_adjustment (progress, NULL);
-
- return gtk_progress_get_percentage_from_value (progress, progress->adjustment->value);
-}
-
-gdouble
-gtk_progress_get_percentage_from_value (GtkProgress *progress,
- gdouble value)
-{
- g_return_val_if_fail (GTK_IS_PROGRESS (progress), 0);
-
- if (!progress->adjustment)
- gtk_progress_set_adjustment (progress, NULL);
-
- if (progress->adjustment->lower < progress->adjustment->upper &&
- value >= progress->adjustment->lower &&
- value <= progress->adjustment->upper)
- return (value - progress->adjustment->lower) /
- (progress->adjustment->upper - progress->adjustment->lower);
- else
- return 0.0;
-}
-
-void
-gtk_progress_set_value (GtkProgress *progress,
- gdouble value)
-{
- g_return_if_fail (GTK_IS_PROGRESS (progress));
-
- if (!progress->adjustment)
- gtk_progress_set_adjustment (progress, NULL);
-
- if (fabs (progress->adjustment->value - value) > EPSILON)
- gtk_adjustment_set_value (progress->adjustment, value);
-}
-
-gdouble
-gtk_progress_get_value (GtkProgress *progress)
-{
- g_return_val_if_fail (GTK_IS_PROGRESS (progress), 0);
-
- return progress->adjustment ? progress->adjustment->value : 0;
-}
-
-void
-gtk_progress_set_show_text (GtkProgress *progress,
- gboolean show_text)
-{
- g_return_if_fail (GTK_IS_PROGRESS (progress));
-
- if (progress->show_text != show_text)
- {
- progress->show_text = show_text;
-
- gtk_widget_queue_resize (GTK_WIDGET (progress));
-
- g_object_notify (G_OBJECT (progress), "show-text");
- }
-}
-
-void
-gtk_progress_set_text_alignment (GtkProgress *progress,
- gfloat x_align,
- gfloat y_align)
-{
- g_return_if_fail (GTK_IS_PROGRESS (progress));
- g_return_if_fail (x_align >= 0.0 && x_align <= 1.0);
- g_return_if_fail (y_align >= 0.0 && y_align <= 1.0);
-
- if (progress->x_align != x_align || progress->y_align != y_align)
- {
- g_object_freeze_notify (G_OBJECT (progress));
- if (progress->x_align != x_align)
- {
- progress->x_align = x_align;
- g_object_notify (G_OBJECT (progress), "text-xalign");
- }
-
- if (progress->y_align != y_align)
- {
- progress->y_align = y_align;
- g_object_notify (G_OBJECT (progress), "text-yalign");
- }
- g_object_thaw_notify (G_OBJECT (progress));
-
- if (gtk_widget_is_drawable (GTK_WIDGET (progress)))
- gtk_widget_queue_resize (GTK_WIDGET (progress));
- }
-}
-
-void
-gtk_progress_set_format_string (GtkProgress *progress,
- const gchar *format)
-{
- gchar *old_format;
-
- g_return_if_fail (GTK_IS_PROGRESS (progress));
-
- /* Turn on format, in case someone called
- * gtk_progress_bar_set_text() and turned it off.
- */
- progress->use_text_format = TRUE;
-
- old_format = progress->format;
-
- if (!format)
- format = DEFAULT_FORMAT;
-
- progress->format = g_strdup (format);
- g_free (old_format);
-
- gtk_widget_queue_resize (GTK_WIDGET (progress));
-}
-
-gchar *
-gtk_progress_get_current_text (GtkProgress *progress)
-{
- g_return_val_if_fail (GTK_IS_PROGRESS (progress), NULL);
-
- if (!progress->adjustment)
- gtk_progress_set_adjustment (progress, NULL);
-
- return gtk_progress_build_string (progress, progress->adjustment->value,
- gtk_progress_get_current_percentage (progress));
-}
-
-gchar *
-gtk_progress_get_text_from_value (GtkProgress *progress,
- gdouble value)
-{
- g_return_val_if_fail (GTK_IS_PROGRESS (progress), NULL);
-
- if (!progress->adjustment)
- gtk_progress_set_adjustment (progress, NULL);
-
- return gtk_progress_build_string (progress, value,
- gtk_progress_get_percentage_from_value (progress, value));
-}
-
-void
-gtk_progress_set_activity_mode (GtkProgress *progress,
- gboolean activity_mode)
-{
- g_return_if_fail (GTK_IS_PROGRESS (progress));
-
- if (progress->activity_mode != (activity_mode != FALSE))
- {
- progress->activity_mode = (activity_mode != FALSE);
-
- if (progress->activity_mode)
- GTK_PROGRESS_GET_CLASS (progress)->act_mode_enter (progress);
-
- if (gtk_widget_is_drawable (GTK_WIDGET (progress)))
- gtk_widget_queue_resize (GTK_WIDGET (progress));
-
- g_object_notify (G_OBJECT (progress), "activity-mode");
- }
-}
-
-#include "gtkaliasdef.c"