e7bb83988f
Reinstate code that was accidentally deleted during the port to
GtkProgressTracker in commit d57ebe2de7.
Without that code, pulsing the progressbar will stop doing anything
after 3 iterations.
1823 lines
61 KiB
C
1823 lines
61 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, see <http://www.gnu.org/licenses/>.
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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 "config.h"
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#include <string.h>
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#include "gtkprogressbar.h"
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#include "gtkorientableprivate.h"
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#include "gtkwidgetprivate.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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#include "gtkcssshadowsvalueprivate.h"
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#include "gtkstylecontextprivate.h"
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#include "gtkcssnodeprivate.h"
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#include "gtkcssstylepropertyprivate.h"
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#include "gtkcsscustomgadgetprivate.h"
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#include "gtkcssnumbervalueprivate.h"
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#include "gtkprogresstrackerprivate.h"
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#include "a11y/gtkprogressbaraccessible.h"
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#include "fallback-c89.c"
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/**
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* SECTION:gtkprogressbar
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* @Short_description: A widget which indicates progress visually
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* @Title: GtkProgressBar
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*
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* The #GtkProgressBar is typically used to display the progress of a long
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* running operation. It provides a visual clue that processing is underway.
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* The GtkProgressBar can be used in two different modes: percentage mode
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* and activity mode.
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*
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* When an application can determine how much work needs to take place
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* (e.g. read a fixed number of bytes from a file) and can monitor its
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* progress, it can use the GtkProgressBar in percentage mode and the
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* user sees a growing bar indicating the percentage of the work that
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* has been completed. In this mode, the application is required to call
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* gtk_progress_bar_set_fraction() periodically to update the progress bar.
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*
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* When an application has no accurate way of knowing the amount of work
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* to do, it can use the #GtkProgressBar in activity mode, which shows
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* activity by a block moving back and forth within the progress area. In
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* this mode, the application is required to call gtk_progress_bar_pulse()
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* periodically to update the progress bar.
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*
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* There is quite a bit of flexibility provided to control the appearance
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* of the #GtkProgressBar. Functions are provided to control the orientation
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* of the bar, optional text can be displayed along with the bar, and the
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* step size used in activity mode can be set.
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*
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* # CSS nodes
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*
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* |[<!-- language="plain" -->
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* progressbar[.osd]
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* ├── [text]
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* ╰── trough[.empty][.full]
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* ╰── progress[.pulse]
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* ]|
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*
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* GtkProgressBar has a main CSS node with name progressbar and subnodes with
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* names text and trough, of which the latter has a subnode named progress. The
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* text subnode is only present if text is shown. The progress subnode has the
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* style class .pulse when in activity mode. It gets the style classes .left,
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* .right, .top or .bottom added when the progress 'touches' the corresponding
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* end of the GtkProgressBar. The .osd class on the progressbar node is for use
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* in overlays like the one Epiphany has for page loading progress.
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*/
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#define MIN_HORIZONTAL_BAR_WIDTH 150
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#define MIN_HORIZONTAL_BAR_HEIGHT 6
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#define MIN_VERTICAL_BAR_WIDTH 7
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#define MIN_VERTICAL_BAR_HEIGHT 80
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#define DEFAULT_PULSE_DURATION 250000000
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struct _GtkProgressBarPrivate
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{
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gchar *text;
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GtkCssGadget *gadget;
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GtkCssGadget *text_gadget;
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GtkCssGadget *trough_gadget;
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GtkCssGadget *progress_gadget;
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gdouble fraction;
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gdouble pulse_fraction;
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double activity_pos;
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guint activity_blocks;
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GtkOrientation orientation;
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guint tick_id;
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GtkProgressTracker tracker;
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gint64 pulse1;
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gint64 pulse2;
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gdouble last_iteration;
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guint activity_dir : 1;
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guint activity_mode : 1;
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guint ellipsize : 3;
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guint show_text : 1;
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guint inverted : 1;
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};
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enum {
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PROP_0,
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PROP_FRACTION,
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PROP_PULSE_STEP,
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PROP_INVERTED,
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PROP_TEXT,
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PROP_SHOW_TEXT,
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PROP_ELLIPSIZE,
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PROP_ORIENTATION,
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NUM_PROPERTIES = PROP_ORIENTATION
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};
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static GParamSpec *progress_props[NUM_PROPERTIES] = { NULL, };
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static void gtk_progress_bar_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_progress_bar_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_progress_bar_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_progress_bar_get_preferred_width (GtkWidget *widget,
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gint *minimum,
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gint *natural);
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static void gtk_progress_bar_get_preferred_height (GtkWidget *widget,
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gint *minimum,
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gint *natural);
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static gboolean gtk_progress_bar_draw (GtkWidget *widget,
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cairo_t *cr);
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static void gtk_progress_bar_act_mode_enter (GtkProgressBar *progress);
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static void gtk_progress_bar_act_mode_leave (GtkProgressBar *progress);
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static void gtk_progress_bar_finalize (GObject *object);
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static void gtk_progress_bar_set_orientation (GtkProgressBar *progress,
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GtkOrientation orientation);
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static void gtk_progress_bar_direction_changed (GtkWidget *widget,
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GtkTextDirection previous_dir);
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static void gtk_progress_bar_state_flags_changed (GtkWidget *widget,
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GtkStateFlags previous_state);
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static void gtk_progress_bar_measure (GtkCssGadget *gadget,
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GtkOrientation orientation,
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gint for_size,
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gint *minimum,
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gint *natural,
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gint *minimum_baseline,
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gint *natural_baseline,
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gpointer data);
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static void gtk_progress_bar_allocate (GtkCssGadget *gadget,
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const GtkAllocation *allocation,
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gint baseline,
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GtkAllocation *out_clip,
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gpointer data);
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static gboolean gtk_progress_bar_render (GtkCssGadget *gadget,
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cairo_t *cr,
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gint x,
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gint y,
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gint width,
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gint height,
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gpointer data);
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static void gtk_progress_bar_allocate_trough (GtkCssGadget *gadget,
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const GtkAllocation *allocation,
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gint baseline,
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GtkAllocation *out_clip,
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gpointer data);
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static void gtk_progress_bar_measure_trough (GtkCssGadget *gadget,
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GtkOrientation orientation,
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gint for_size,
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gint *minimum,
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gint *natural,
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gint *minimum_baseline,
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gint *natural_baseline,
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gpointer data);
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static gboolean gtk_progress_bar_render_trough (GtkCssGadget *gadget,
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cairo_t *cr,
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gint x,
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gint y,
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gint width,
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gint height,
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gpointer data);
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static void gtk_progress_bar_measure_progress (GtkCssGadget *gadget,
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GtkOrientation orientation,
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gint for_size,
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gint *minimum,
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gint *natural,
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gint *minimum_baseline,
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gint *natural_baseline,
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gpointer data);
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static void gtk_progress_bar_measure_text (GtkCssGadget *gadget,
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GtkOrientation orientation,
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gint for_size,
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gint *minimum,
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gint *natural,
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gint *minimum_baseline,
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gint *natural_baseline,
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gpointer data);
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static gboolean gtk_progress_bar_render_text (GtkCssGadget *gadget,
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cairo_t *cr,
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gint x,
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gint y,
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gint width,
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gint height,
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gpointer data);
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G_DEFINE_TYPE_WITH_CODE (GtkProgressBar, gtk_progress_bar, GTK_TYPE_WIDGET,
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G_ADD_PRIVATE (GtkProgressBar)
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G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL))
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static void
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gtk_progress_bar_class_init (GtkProgressBarClass *class)
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{
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GObjectClass *gobject_class;
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GtkWidgetClass *widget_class;
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gobject_class = G_OBJECT_CLASS (class);
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widget_class = (GtkWidgetClass *) class;
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gobject_class->set_property = gtk_progress_bar_set_property;
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gobject_class->get_property = gtk_progress_bar_get_property;
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gobject_class->finalize = gtk_progress_bar_finalize;
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widget_class->draw = gtk_progress_bar_draw;
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widget_class->size_allocate = gtk_progress_bar_size_allocate;
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widget_class->get_preferred_width = gtk_progress_bar_get_preferred_width;
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widget_class->get_preferred_height = gtk_progress_bar_get_preferred_height;
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widget_class->direction_changed = gtk_progress_bar_direction_changed;
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widget_class->state_flags_changed = gtk_progress_bar_state_flags_changed;
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g_object_class_override_property (gobject_class, PROP_ORIENTATION, "orientation");
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progress_props[PROP_INVERTED] =
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g_param_spec_boolean ("inverted",
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P_("Inverted"),
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P_("Invert the direction in which the progress bar grows"),
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FALSE,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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progress_props[PROP_FRACTION] =
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g_param_spec_double ("fraction",
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P_("Fraction"),
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P_("The fraction of total work that has been completed"),
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0.0, 1.0,
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0.0,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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progress_props[PROP_PULSE_STEP] =
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g_param_spec_double ("pulse-step",
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P_("Pulse Step"),
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P_("The fraction of total progress to move the bouncing block when pulsed"),
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0.0, 1.0,
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0.1,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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progress_props[PROP_TEXT] =
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g_param_spec_string ("text",
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P_("Text"),
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P_("Text to be displayed in the progress bar"),
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NULL,
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GTK_PARAM_READWRITE);
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/**
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* GtkProgressBar:show-text:
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*
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* Sets whether the progress bar will show a text in addition
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* to the bar itself. The shown text is either the value of
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* the #GtkProgressBar:text property or, if that is %NULL,
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* the #GtkProgressBar:fraction value, as a percentage.
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*
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* To make a progress bar that is styled and sized suitably for
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* showing text (even if the actual text is blank), set
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* #GtkProgressBar:show-text to %TRUE and #GtkProgressBar:text
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* to the empty string (not %NULL).
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*
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* Since: 3.0
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*/
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progress_props[PROP_SHOW_TEXT] =
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g_param_spec_boolean ("show-text",
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P_("Show text"),
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P_("Whether the progress is shown as text."),
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FALSE,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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/**
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* GtkProgressBar:ellipsize:
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*
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* The preferred place to ellipsize the string, if the progress bar does
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* not have enough room to display the entire string, specified as a
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* #PangoEllipsizeMode.
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*
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* Note that setting this property to a value other than
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* %PANGO_ELLIPSIZE_NONE has the side-effect that the progress bar requests
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* only enough space to display the ellipsis ("..."). Another means to set a
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* progress bar's width is gtk_widget_set_size_request().
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*
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* Since: 2.6
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*/
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progress_props[PROP_ELLIPSIZE] =
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g_param_spec_enum ("ellipsize",
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P_("Ellipsize"),
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P_("The preferred place to ellipsize the string, if the progress bar "
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"does not have enough room to display the entire string, if at all."),
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PANGO_TYPE_ELLIPSIZE_MODE,
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PANGO_ELLIPSIZE_NONE,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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g_object_class_install_properties (gobject_class, NUM_PROPERTIES, progress_props);
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/**
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* GtkProgressBar:xspacing:
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*
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* Extra spacing applied to the width of a progress bar.
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*
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* Deprecated: 3.20: Use the standard CSS padding and margins; the
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* value of this style property is ignored.
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*/
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_int ("xspacing",
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P_("X spacing"),
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P_("Extra spacing applied to the width of a progress bar."),
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0, G_MAXINT, 2,
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G_PARAM_READWRITE|G_PARAM_DEPRECATED));
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||
|
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/**
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* GtkProgressBar:yspacing:
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*
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* Extra spacing applied to the height of a progress bar.
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*
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* Deprecated: 3.20: Use the standard CSS padding and margins; the
|
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* value of this style property is ignored.
|
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*/
|
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_int ("yspacing",
|
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P_("Y spacing"),
|
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P_("Extra spacing applied to the height of a progress bar."),
|
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0, G_MAXINT, 2,
|
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G_PARAM_READWRITE|G_PARAM_DEPRECATED));
|
||
|
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/**
|
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* GtkProgressBar:min-horizontal-bar-width:
|
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*
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* The minimum horizontal width of the progress bar.
|
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*
|
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* Since: 2.14
|
||
*
|
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* Deprecated: 3.20: Use the standard CSS property min-width.
|
||
*/
|
||
gtk_widget_class_install_style_property (widget_class,
|
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g_param_spec_int ("min-horizontal-bar-width",
|
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P_("Minimum horizontal bar width"),
|
||
P_("The minimum horizontal width of the progress bar"),
|
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1, G_MAXINT, MIN_HORIZONTAL_BAR_WIDTH,
|
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G_PARAM_READWRITE|G_PARAM_DEPRECATED));
|
||
/**
|
||
* GtkProgressBar:min-horizontal-bar-height:
|
||
*
|
||
* Minimum horizontal height of the progress bar.
|
||
*
|
||
* Since: 2.14
|
||
*
|
||
* Deprecated: 3.20: Use the standard CSS property min-height.
|
||
*/
|
||
gtk_widget_class_install_style_property (widget_class,
|
||
g_param_spec_int ("min-horizontal-bar-height",
|
||
P_("Minimum horizontal bar height"),
|
||
P_("Minimum horizontal height of the progress bar"),
|
||
1, G_MAXINT, MIN_HORIZONTAL_BAR_HEIGHT,
|
||
G_PARAM_READWRITE|G_PARAM_DEPRECATED));
|
||
/**
|
||
* GtkProgressBar:min-vertical-bar-width:
|
||
*
|
||
* The minimum vertical width of the progress bar.
|
||
*
|
||
* Since: 2.14
|
||
*
|
||
* Deprecated: 3.20: Use the standard CSS property min-width.
|
||
*/
|
||
gtk_widget_class_install_style_property (widget_class,
|
||
g_param_spec_int ("min-vertical-bar-width",
|
||
P_("Minimum vertical bar width"),
|
||
P_("The minimum vertical width of the progress bar"),
|
||
1, G_MAXINT, MIN_VERTICAL_BAR_WIDTH,
|
||
G_PARAM_READWRITE|G_PARAM_DEPRECATED));
|
||
/**
|
||
* GtkProgressBar:min-vertical-bar-height:
|
||
*
|
||
* The minimum vertical height of the progress bar.
|
||
*
|
||
* Since: 2.14
|
||
*
|
||
* Deprecated: 3.20: Use the standard CSS property min-height.
|
||
*/
|
||
gtk_widget_class_install_style_property (widget_class,
|
||
g_param_spec_int ("min-vertical-bar-height",
|
||
P_("Minimum vertical bar height"),
|
||
P_("The minimum vertical height of the progress bar"),
|
||
1, G_MAXINT, MIN_VERTICAL_BAR_HEIGHT,
|
||
G_PARAM_READWRITE|G_PARAM_DEPRECATED));
|
||
|
||
gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_PROGRESS_BAR_ACCESSIBLE);
|
||
gtk_widget_class_set_css_name (widget_class, "progressbar");
|
||
}
|
||
|
||
static void
|
||
update_fraction_classes (GtkProgressBar *pbar)
|
||
{
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
gboolean empty = FALSE;
|
||
gboolean full = FALSE;
|
||
|
||
/* Here we set classes based on fill-level unless we're in activity-mode.
|
||
*/
|
||
|
||
if (!priv->activity_mode)
|
||
{
|
||
if (priv->fraction <= 0.0)
|
||
empty = TRUE;
|
||
else if (priv->fraction >= 1.0)
|
||
full = TRUE;
|
||
}
|
||
|
||
if (empty)
|
||
gtk_css_gadget_add_class (priv->trough_gadget, "empty");
|
||
else
|
||
gtk_css_gadget_remove_class (priv->trough_gadget, "empty");
|
||
|
||
if (full)
|
||
gtk_css_gadget_add_class (priv->trough_gadget, "full");
|
||
else
|
||
gtk_css_gadget_remove_class (priv->trough_gadget, "full");
|
||
}
|
||
|
||
static void
|
||
update_node_classes (GtkProgressBar *pbar)
|
||
{
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
gboolean left = FALSE;
|
||
gboolean right = FALSE;
|
||
gboolean top = FALSE;
|
||
gboolean bottom = FALSE;
|
||
|
||
/* Here we set positional classes, depending on which end of the
|
||
* progressbar the progress touches.
|
||
*/
|
||
|
||
if (priv->activity_mode)
|
||
{
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
left = priv->activity_pos <= 0.0;
|
||
right = priv->activity_pos >= 1.0;
|
||
}
|
||
else
|
||
{
|
||
top = priv->activity_pos <= 0.0;
|
||
bottom = priv->activity_pos >= 1.0;
|
||
}
|
||
}
|
||
else /* continuous */
|
||
{
|
||
gboolean inverted;
|
||
|
||
inverted = priv->inverted;
|
||
if (gtk_widget_get_direction (GTK_WIDGET (pbar)) == GTK_TEXT_DIR_RTL)
|
||
{
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
inverted = !inverted;
|
||
}
|
||
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
left = !inverted || priv->fraction >= 1.0;
|
||
right = inverted || priv->fraction >= 1.0;
|
||
}
|
||
else
|
||
{
|
||
top = !inverted || priv->fraction >= 1.0;
|
||
bottom = inverted || priv->fraction >= 1.0;
|
||
}
|
||
}
|
||
|
||
if (left)
|
||
gtk_css_gadget_add_class (priv->progress_gadget, GTK_STYLE_CLASS_LEFT);
|
||
else
|
||
gtk_css_gadget_remove_class (priv->progress_gadget, GTK_STYLE_CLASS_LEFT);
|
||
|
||
if (right)
|
||
gtk_css_gadget_add_class (priv->progress_gadget, GTK_STYLE_CLASS_RIGHT);
|
||
else
|
||
gtk_css_gadget_remove_class (priv->progress_gadget, GTK_STYLE_CLASS_RIGHT);
|
||
|
||
if (top)
|
||
gtk_css_gadget_add_class (priv->progress_gadget, GTK_STYLE_CLASS_TOP);
|
||
else
|
||
gtk_css_gadget_remove_class (priv->progress_gadget, GTK_STYLE_CLASS_TOP);
|
||
|
||
if (bottom)
|
||
gtk_css_gadget_add_class (priv->progress_gadget, GTK_STYLE_CLASS_BOTTOM);
|
||
else
|
||
gtk_css_gadget_remove_class (priv->progress_gadget, GTK_STYLE_CLASS_BOTTOM);
|
||
|
||
update_fraction_classes (pbar);
|
||
}
|
||
|
||
static void
|
||
update_node_state (GtkProgressBar *pbar)
|
||
{
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
GtkStateFlags state;
|
||
|
||
state = gtk_widget_get_state_flags (GTK_WIDGET (pbar));
|
||
|
||
gtk_css_gadget_set_state (priv->gadget, state);
|
||
gtk_css_gadget_set_state (priv->trough_gadget, state);
|
||
gtk_css_gadget_set_state (priv->progress_gadget, state);
|
||
if (priv->text_gadget)
|
||
gtk_css_gadget_set_state (priv->text_gadget, state);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_init (GtkProgressBar *pbar)
|
||
{
|
||
GtkProgressBarPrivate *priv;
|
||
GtkCssNode *widget_node;
|
||
|
||
pbar->priv = gtk_progress_bar_get_instance_private (pbar);
|
||
priv = pbar->priv;
|
||
|
||
priv->orientation = GTK_ORIENTATION_HORIZONTAL;
|
||
priv->inverted = FALSE;
|
||
priv->pulse_fraction = 0.1;
|
||
priv->activity_pos = 0;
|
||
priv->activity_dir = 1;
|
||
priv->activity_blocks = 5;
|
||
priv->ellipsize = PANGO_ELLIPSIZE_NONE;
|
||
priv->show_text = FALSE;
|
||
|
||
priv->text = NULL;
|
||
priv->fraction = 0.0;
|
||
|
||
gtk_widget_set_has_window (GTK_WIDGET (pbar), FALSE);
|
||
|
||
_gtk_orientable_set_style_classes (GTK_ORIENTABLE (pbar));
|
||
|
||
widget_node = gtk_widget_get_css_node (GTK_WIDGET (pbar));
|
||
priv->gadget = gtk_css_custom_gadget_new_for_node (widget_node,
|
||
GTK_WIDGET (pbar),
|
||
gtk_progress_bar_measure,
|
||
gtk_progress_bar_allocate,
|
||
gtk_progress_bar_render,
|
||
NULL,
|
||
NULL);
|
||
|
||
priv->trough_gadget = gtk_css_custom_gadget_new ("trough",
|
||
GTK_WIDGET (pbar),
|
||
priv->gadget,
|
||
NULL,
|
||
gtk_progress_bar_measure_trough,
|
||
gtk_progress_bar_allocate_trough,
|
||
gtk_progress_bar_render_trough,
|
||
NULL,
|
||
NULL);
|
||
|
||
priv->progress_gadget = gtk_css_custom_gadget_new ("progress",
|
||
GTK_WIDGET (pbar),
|
||
priv->trough_gadget,
|
||
NULL,
|
||
gtk_progress_bar_measure_progress,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL);
|
||
|
||
update_node_state (pbar);
|
||
update_node_classes (pbar);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_set_property (GObject *object,
|
||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkProgressBar *pbar;
|
||
|
||
pbar = GTK_PROGRESS_BAR (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ORIENTATION:
|
||
gtk_progress_bar_set_orientation (pbar, g_value_get_enum (value));
|
||
break;
|
||
case PROP_INVERTED:
|
||
gtk_progress_bar_set_inverted (pbar, g_value_get_boolean (value));
|
||
break;
|
||
case PROP_FRACTION:
|
||
gtk_progress_bar_set_fraction (pbar, g_value_get_double (value));
|
||
break;
|
||
case PROP_PULSE_STEP:
|
||
gtk_progress_bar_set_pulse_step (pbar, g_value_get_double (value));
|
||
break;
|
||
case PROP_TEXT:
|
||
gtk_progress_bar_set_text (pbar, g_value_get_string (value));
|
||
break;
|
||
case PROP_SHOW_TEXT:
|
||
gtk_progress_bar_set_show_text (pbar, g_value_get_boolean (value));
|
||
break;
|
||
case PROP_ELLIPSIZE:
|
||
gtk_progress_bar_set_ellipsize (pbar, g_value_get_enum (value));
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkProgressBar *pbar = GTK_PROGRESS_BAR (object);
|
||
GtkProgressBarPrivate* priv = pbar->priv;
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ORIENTATION:
|
||
g_value_set_enum (value, priv->orientation);
|
||
break;
|
||
case PROP_INVERTED:
|
||
g_value_set_boolean (value, priv->inverted);
|
||
break;
|
||
case PROP_FRACTION:
|
||
g_value_set_double (value, priv->fraction);
|
||
break;
|
||
case PROP_PULSE_STEP:
|
||
g_value_set_double (value, priv->pulse_fraction);
|
||
break;
|
||
case PROP_TEXT:
|
||
g_value_set_string (value, priv->text);
|
||
break;
|
||
case PROP_SHOW_TEXT:
|
||
g_value_set_boolean (value, priv->show_text);
|
||
break;
|
||
case PROP_ELLIPSIZE:
|
||
g_value_set_enum (value, priv->ellipsize);
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_new:
|
||
*
|
||
* Creates a new #GtkProgressBar.
|
||
*
|
||
* Returns: a #GtkProgressBar.
|
||
*/
|
||
GtkWidget*
|
||
gtk_progress_bar_new (void)
|
||
{
|
||
GtkWidget *pbar;
|
||
|
||
pbar = g_object_new (GTK_TYPE_PROGRESS_BAR, NULL);
|
||
|
||
return pbar;
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_finalize (GObject *object)
|
||
{
|
||
GtkProgressBar *pbar = GTK_PROGRESS_BAR (object);
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
|
||
if (priv->activity_mode)
|
||
gtk_progress_bar_act_mode_leave (pbar);
|
||
|
||
g_free (priv->text);
|
||
|
||
g_clear_object (&priv->text_gadget);
|
||
g_clear_object (&priv->progress_gadget);
|
||
g_clear_object (&priv->trough_gadget);
|
||
g_clear_object (&priv->gadget);
|
||
|
||
G_OBJECT_CLASS (gtk_progress_bar_parent_class)->finalize (object);
|
||
}
|
||
|
||
static gchar *
|
||
get_current_text (GtkProgressBar *pbar)
|
||
{
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
|
||
if (priv->text)
|
||
return g_strdup (priv->text);
|
||
else
|
||
return g_strdup_printf (C_("progress bar label", "%.0f %%"), priv->fraction * 100.0);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_measure (GtkCssGadget *gadget,
|
||
GtkOrientation orientation,
|
||
int for_size,
|
||
int *minimum,
|
||
int *natural,
|
||
int *minimum_baseline,
|
||
int *natural_baseline,
|
||
gpointer data)
|
||
{
|
||
GtkWidget *widget;
|
||
GtkProgressBar *pbar;
|
||
GtkProgressBarPrivate *priv;
|
||
gint text_minimum, text_natural;
|
||
gint trough_minimum, trough_natural;
|
||
|
||
widget = gtk_css_gadget_get_owner (gadget);
|
||
pbar = GTK_PROGRESS_BAR (widget);
|
||
priv = pbar->priv;
|
||
|
||
if (priv->show_text)
|
||
gtk_css_gadget_get_preferred_size (priv->text_gadget,
|
||
orientation,
|
||
-1,
|
||
&text_minimum, &text_natural,
|
||
NULL, NULL);
|
||
else
|
||
text_minimum = text_natural = 0;
|
||
|
||
gtk_css_gadget_get_preferred_size (priv->trough_gadget,
|
||
orientation,
|
||
-1,
|
||
&trough_minimum, &trough_natural,
|
||
NULL, NULL);
|
||
|
||
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
*minimum = MAX (text_minimum, trough_minimum);
|
||
*natural = MAX (text_natural, trough_natural);
|
||
}
|
||
else
|
||
{
|
||
*minimum = text_minimum + trough_minimum;
|
||
*natural = text_natural + trough_natural;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
*minimum = text_minimum + trough_minimum;
|
||
*natural = text_natural + trough_natural;
|
||
}
|
||
else
|
||
{
|
||
*minimum = MAX (text_minimum, trough_minimum);
|
||
*natural = MAX (text_natural, trough_natural);
|
||
}
|
||
}
|
||
}
|
||
|
||
static PangoLayout *
|
||
gtk_progress_bar_get_layout (GtkProgressBar *pbar)
|
||
{
|
||
PangoLayout *layout;
|
||
gchar *buf;
|
||
GtkCssStyle *style;
|
||
PangoAttrList *attrs;
|
||
PangoFontDescription *desc;
|
||
|
||
buf = get_current_text (pbar);
|
||
layout = gtk_widget_create_pango_layout (GTK_WIDGET (pbar), buf);
|
||
|
||
style = gtk_css_node_get_style (gtk_css_gadget_get_node (pbar->priv->text_gadget));
|
||
|
||
attrs = gtk_css_style_get_pango_attributes (style);
|
||
desc = gtk_css_style_get_pango_font (style);
|
||
|
||
pango_layout_set_attributes (layout, attrs);
|
||
pango_layout_set_font_description (layout, desc);
|
||
|
||
if (attrs)
|
||
pango_attr_list_unref (attrs);
|
||
pango_font_description_free (desc);
|
||
|
||
g_free (buf);
|
||
|
||
return layout;
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_measure_text (GtkCssGadget *gadget,
|
||
GtkOrientation orientation,
|
||
int for_size,
|
||
int *minimum,
|
||
int *natural,
|
||
int *minimum_baseline,
|
||
int *natural_baseline,
|
||
gpointer data)
|
||
{
|
||
GtkWidget *widget;
|
||
GtkProgressBar *pbar;
|
||
GtkProgressBarPrivate *priv;
|
||
PangoLayout *layout;
|
||
PangoRectangle logical_rect;
|
||
|
||
widget = gtk_css_gadget_get_owner (gadget);
|
||
pbar = GTK_PROGRESS_BAR (widget);
|
||
priv = pbar->priv;
|
||
|
||
layout = gtk_progress_bar_get_layout (pbar);
|
||
|
||
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
|
||
|
||
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
if (priv->ellipsize)
|
||
{
|
||
PangoContext *context;
|
||
PangoFontMetrics *metrics;
|
||
gint char_width;
|
||
|
||
/* The minimum size for ellipsized text is ~ 3 chars */
|
||
context = pango_layout_get_context (layout);
|
||
metrics = pango_context_get_metrics (context,
|
||
pango_layout_get_font_description (layout),
|
||
pango_context_get_language (context));
|
||
|
||
char_width = pango_font_metrics_get_approximate_char_width (metrics);
|
||
pango_font_metrics_unref (metrics);
|
||
|
||
*minimum = PANGO_PIXELS (char_width) * 3;
|
||
}
|
||
else
|
||
*minimum = logical_rect.width;
|
||
|
||
*natural = MAX (*minimum, logical_rect.width);
|
||
}
|
||
else
|
||
*minimum = *natural = logical_rect.height;
|
||
|
||
g_object_unref (layout);
|
||
}
|
||
|
||
static gint
|
||
get_number (GtkCssStyle *style,
|
||
guint property)
|
||
{
|
||
double d = _gtk_css_number_value_get (gtk_css_style_get_value (style, property), 100.0);
|
||
|
||
if (d < 1)
|
||
return ceil (d);
|
||
else
|
||
return floor (d);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_measure_trough (GtkCssGadget *gadget,
|
||
GtkOrientation orientation,
|
||
int for_size,
|
||
int *minimum,
|
||
int *natural,
|
||
int *minimum_baseline,
|
||
int *natural_baseline,
|
||
gpointer data)
|
||
{
|
||
GtkWidget *widget;
|
||
GtkProgressBarPrivate *priv;
|
||
GtkCssStyle *style;
|
||
|
||
widget = gtk_css_gadget_get_owner (gadget);
|
||
priv = GTK_PROGRESS_BAR (widget)->priv;
|
||
|
||
style = gtk_css_gadget_get_style (gadget);
|
||
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
gdouble min_width;
|
||
|
||
min_width = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_MIN_WIDTH), 100.0);
|
||
|
||
if (min_width > 0.0)
|
||
*minimum = 0;
|
||
else if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
gtk_widget_style_get (widget, "min-horizontal-bar-width", minimum, NULL);
|
||
else
|
||
gtk_widget_style_get (widget, "min-vertical-bar-width", minimum, NULL);
|
||
}
|
||
else
|
||
{
|
||
gdouble min_height;
|
||
|
||
min_height = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_MIN_HEIGHT), 100.0);
|
||
|
||
if (min_height > 0.0)
|
||
*minimum = 0;
|
||
else if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
gtk_widget_style_get (widget, "min-horizontal-bar-height", minimum, NULL);
|
||
else
|
||
gtk_widget_style_get (widget, "min-vertical-bar-height", minimum, NULL);
|
||
}
|
||
|
||
*natural = *minimum;
|
||
|
||
if (minimum_baseline)
|
||
*minimum_baseline = -1;
|
||
if (natural_baseline)
|
||
*natural_baseline = -1;
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_measure_progress (GtkCssGadget *gadget,
|
||
GtkOrientation orientation,
|
||
int for_size,
|
||
int *minimum,
|
||
int *natural,
|
||
int *minimum_baseline,
|
||
int *natural_baseline,
|
||
gpointer data)
|
||
{
|
||
GtkWidget *widget;
|
||
GtkProgressBar *pbar;
|
||
GtkProgressBarPrivate *priv;
|
||
GtkCssStyle *style;
|
||
|
||
widget = gtk_css_gadget_get_owner (gadget);
|
||
pbar = GTK_PROGRESS_BAR (widget);
|
||
priv = pbar->priv;
|
||
|
||
style = gtk_css_gadget_get_style (gadget);
|
||
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
gint min_width;
|
||
|
||
min_width = get_number (style, GTK_CSS_PROPERTY_MIN_WIDTH);
|
||
|
||
if (min_width != 0)
|
||
*minimum = min_width;
|
||
else if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
*minimum = 0;
|
||
else
|
||
gtk_widget_style_get (widget, "min-vertical-bar-width", minimum, NULL);
|
||
}
|
||
else
|
||
{
|
||
gint min_height;
|
||
|
||
min_height = get_number (style, GTK_CSS_PROPERTY_MIN_HEIGHT);
|
||
|
||
if (min_height != 0)
|
||
*minimum = min_height;
|
||
else if (priv->orientation == GTK_ORIENTATION_VERTICAL)
|
||
*minimum = 0;
|
||
else
|
||
gtk_widget_style_get (widget, "min-horizontal-bar-height", minimum, NULL);
|
||
}
|
||
|
||
*natural = *minimum;
|
||
|
||
if (minimum_baseline)
|
||
*minimum_baseline = -1;
|
||
if (natural_baseline)
|
||
*natural_baseline = -1;
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_size_allocate (GtkWidget *widget,
|
||
GtkAllocation *allocation)
|
||
{
|
||
GtkAllocation clip;
|
||
|
||
gtk_widget_set_allocation (widget, allocation);
|
||
|
||
gtk_css_gadget_allocate (GTK_PROGRESS_BAR (widget)->priv->gadget,
|
||
allocation,
|
||
gtk_widget_get_allocated_baseline (widget),
|
||
&clip);
|
||
|
||
gtk_widget_set_clip (widget, &clip);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_allocate (GtkCssGadget *gadget,
|
||
const GtkAllocation *allocation,
|
||
int baseline,
|
||
GtkAllocation *out_clip,
|
||
gpointer data)
|
||
{
|
||
GtkWidget *widget;
|
||
GtkProgressBarPrivate *priv;
|
||
gint bar_width, bar_height;
|
||
gint text_width, text_height, text_min, text_nat;
|
||
GtkAllocation alloc;
|
||
GtkAllocation text_clip;
|
||
|
||
widget = gtk_css_gadget_get_owner (gadget);
|
||
priv = GTK_PROGRESS_BAR (widget)->priv;
|
||
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
gtk_css_gadget_get_preferred_size (priv->trough_gadget,
|
||
GTK_ORIENTATION_VERTICAL,
|
||
-1,
|
||
&bar_height, NULL,
|
||
NULL, NULL);
|
||
bar_width = allocation->width;
|
||
}
|
||
else
|
||
{
|
||
gtk_css_gadget_get_preferred_size (priv->trough_gadget,
|
||
GTK_ORIENTATION_HORIZONTAL,
|
||
-1,
|
||
&bar_width, NULL,
|
||
NULL, NULL);
|
||
bar_height = allocation->height;
|
||
}
|
||
|
||
alloc.x = allocation->x + allocation->width - bar_width;
|
||
alloc.y = allocation->y + allocation->height - bar_height;
|
||
alloc.width = bar_width;
|
||
alloc.height = bar_height;
|
||
|
||
gtk_css_gadget_allocate (priv->trough_gadget, &alloc, -1, out_clip);
|
||
|
||
if (!priv->show_text)
|
||
return;
|
||
|
||
gtk_css_gadget_get_preferred_size (priv->text_gadget,
|
||
GTK_ORIENTATION_HORIZONTAL,
|
||
-1,
|
||
&text_min, &text_nat,
|
||
NULL, NULL);
|
||
gtk_css_gadget_get_preferred_size (priv->text_gadget,
|
||
GTK_ORIENTATION_VERTICAL,
|
||
-1,
|
||
&text_height, NULL,
|
||
NULL, NULL);
|
||
|
||
text_width = CLAMP (text_nat, text_min, allocation->width);
|
||
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
alloc.x = allocation->x + (allocation->width - text_width) / 2;
|
||
alloc.y = allocation->y;
|
||
alloc.width = text_width;
|
||
alloc.height = text_height;
|
||
}
|
||
else
|
||
{
|
||
alloc.x = allocation->x + allocation->width - text_width;
|
||
alloc.y = allocation->y + (allocation->height - text_height) / 2;
|
||
alloc.width = text_width;
|
||
alloc.height = text_height;
|
||
}
|
||
|
||
gtk_css_gadget_allocate (priv->text_gadget, &alloc, -1, &text_clip);
|
||
|
||
gdk_rectangle_union (out_clip, &text_clip, out_clip);
|
||
}
|
||
|
||
|
||
static void
|
||
gtk_progress_bar_allocate_trough (GtkCssGadget *gadget,
|
||
const GtkAllocation *allocation,
|
||
int baseline,
|
||
GtkAllocation *out_clip,
|
||
gpointer data)
|
||
{
|
||
GtkWidget *widget;
|
||
GtkProgressBarPrivate *priv;
|
||
GtkAllocation alloc;
|
||
gint width, height;
|
||
gboolean inverted;
|
||
|
||
widget = gtk_css_gadget_get_owner (gadget);
|
||
priv = GTK_PROGRESS_BAR (widget)->priv;
|
||
|
||
inverted = priv->inverted;
|
||
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
|
||
{
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
inverted = !inverted;
|
||
}
|
||
|
||
gtk_css_gadget_get_preferred_size (priv->progress_gadget,
|
||
GTK_ORIENTATION_VERTICAL,
|
||
-1,
|
||
&height, NULL,
|
||
NULL, NULL);
|
||
gtk_css_gadget_get_preferred_size (priv->progress_gadget,
|
||
GTK_ORIENTATION_HORIZONTAL,
|
||
-1,
|
||
&width, NULL,
|
||
NULL, NULL);
|
||
|
||
if (priv->activity_mode)
|
||
{
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
alloc.width = width + (allocation->width - width) / priv->activity_blocks;
|
||
alloc.x = allocation->x + priv->activity_pos * (allocation->width - alloc.width);
|
||
alloc.y = allocation->y + (allocation->height - height) / 2;
|
||
alloc.height = height;
|
||
}
|
||
else
|
||
{
|
||
|
||
alloc.height = height + (allocation->height - height) / priv->activity_blocks;
|
||
alloc.y = allocation->y + priv->activity_pos * (allocation->height - alloc.height);
|
||
alloc.x = allocation->x + (allocation->width - width) / 2;
|
||
alloc.width = width;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
alloc.width = width + (allocation->width - width) * priv->fraction;
|
||
alloc.height = height;
|
||
alloc.y = allocation->y + (allocation->height - height) / 2;
|
||
|
||
if (!inverted)
|
||
alloc.x = allocation->x;
|
||
else
|
||
alloc.x = allocation->x + allocation->width - alloc.width;
|
||
}
|
||
else
|
||
{
|
||
alloc.width = width;
|
||
alloc.height = height + (allocation->height - height) * priv->fraction;
|
||
alloc.x = allocation->x + (allocation->width - width) / 2;
|
||
|
||
if (!inverted)
|
||
alloc.y = allocation->y;
|
||
else
|
||
alloc.y = allocation->y + allocation->height - alloc.height;
|
||
}
|
||
}
|
||
|
||
gtk_css_gadget_allocate (priv->progress_gadget, &alloc, -1, out_clip);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_get_preferred_width (GtkWidget *widget,
|
||
gint *minimum,
|
||
gint *natural)
|
||
{
|
||
gtk_css_gadget_get_preferred_size (GTK_PROGRESS_BAR (widget)->priv->gadget,
|
||
GTK_ORIENTATION_HORIZONTAL,
|
||
-1,
|
||
minimum, natural,
|
||
NULL, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_get_preferred_height (GtkWidget *widget,
|
||
gint *minimum,
|
||
gint *natural)
|
||
{
|
||
gtk_css_gadget_get_preferred_size (GTK_PROGRESS_BAR (widget)->priv->gadget,
|
||
GTK_ORIENTATION_VERTICAL,
|
||
-1,
|
||
minimum, natural,
|
||
NULL, NULL);
|
||
}
|
||
|
||
static gboolean
|
||
tick_cb (GtkWidget *widget,
|
||
GdkFrameClock *frame_clock,
|
||
gpointer user_data)
|
||
{
|
||
GtkProgressBar *pbar = GTK_PROGRESS_BAR (widget);
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
gint64 frame_time;
|
||
gdouble iteration, pulse_iterations, current_iterations, fraction;
|
||
|
||
if (priv->pulse2 == 0 && priv->pulse1 == 0)
|
||
return G_SOURCE_CONTINUE;
|
||
|
||
frame_time = gdk_frame_clock_get_frame_time (frame_clock);
|
||
gtk_progress_tracker_advance_frame (&priv->tracker, frame_time);
|
||
|
||
g_assert (priv->pulse2 > priv->pulse1);
|
||
|
||
pulse_iterations = (priv->pulse2 - priv->pulse1) / (gdouble) G_USEC_PER_SEC;
|
||
current_iterations = (frame_time - priv->pulse1) / (gdouble) G_USEC_PER_SEC;
|
||
|
||
iteration = gtk_progress_tracker_get_iteration (&priv->tracker);
|
||
/* Determine the fraction to move the block from one frame
|
||
* to the next when pulse_fraction is how far the block should
|
||
* move between two calls to gtk_progress_bar_pulse().
|
||
*/
|
||
fraction = priv->pulse_fraction * (iteration - priv->last_iteration) / MAX (pulse_iterations, current_iterations);
|
||
priv->last_iteration = iteration;
|
||
|
||
if (current_iterations > 3 * pulse_iterations)
|
||
{
|
||
priv->pulse1 = 0;
|
||
return G_SOURCE_CONTINUE;
|
||
}
|
||
|
||
/* advance the block */
|
||
if (priv->activity_dir == 0)
|
||
{
|
||
priv->activity_pos += fraction;
|
||
if (priv->activity_pos > 1.0)
|
||
{
|
||
priv->activity_pos = 1.0;
|
||
priv->activity_dir = 1;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
priv->activity_pos -= fraction;
|
||
if (priv->activity_pos <= 0)
|
||
{
|
||
priv->activity_pos = 0;
|
||
priv->activity_dir = 0;
|
||
}
|
||
}
|
||
|
||
update_node_classes (pbar);
|
||
|
||
gtk_widget_queue_allocate (widget);
|
||
|
||
return G_SOURCE_CONTINUE;
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_act_mode_enter (GtkProgressBar *pbar)
|
||
{
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
GtkWidget *widget = GTK_WIDGET (pbar);
|
||
gboolean inverted;
|
||
|
||
gtk_css_gadget_add_class (priv->progress_gadget, GTK_STYLE_CLASS_PULSE);
|
||
|
||
inverted = priv->inverted;
|
||
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
|
||
{
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
inverted = !inverted;
|
||
}
|
||
|
||
/* calculate start pos */
|
||
if (!inverted)
|
||
{
|
||
priv->activity_pos = 0.0;
|
||
priv->activity_dir = 0;
|
||
}
|
||
else
|
||
{
|
||
priv->activity_pos = 1.0;
|
||
priv->activity_dir = 1;
|
||
}
|
||
|
||
update_node_classes (pbar);
|
||
/* No fixed schedule for pulses, will adapt after calls to update_pulse. Just
|
||
* start the tracker to repeat forever with iterations every second.*/
|
||
gtk_progress_tracker_start (&priv->tracker, G_USEC_PER_SEC, 0, INFINITY);
|
||
priv->tick_id = gtk_widget_add_tick_callback (widget, tick_cb, NULL, NULL);
|
||
priv->pulse2 = 0;
|
||
priv->pulse1 = 0;
|
||
priv->last_iteration = 0;
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_act_mode_leave (GtkProgressBar *pbar)
|
||
{
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
|
||
if (priv->tick_id)
|
||
gtk_widget_remove_tick_callback (GTK_WIDGET (pbar), priv->tick_id);
|
||
priv->tick_id = 0;
|
||
|
||
gtk_css_gadget_remove_class (priv->progress_gadget, GTK_STYLE_CLASS_PULSE);
|
||
update_node_classes (pbar);
|
||
}
|
||
|
||
static gboolean
|
||
gtk_progress_bar_render_text (GtkCssGadget *gadget,
|
||
cairo_t *cr,
|
||
int x,
|
||
int y,
|
||
int width,
|
||
int height,
|
||
gpointer data)
|
||
{
|
||
GtkWidget *widget;
|
||
GtkProgressBar *pbar;
|
||
GtkProgressBarPrivate *priv;
|
||
GtkStyleContext *context;
|
||
PangoLayout *layout;
|
||
|
||
widget = gtk_css_gadget_get_owner (gadget);
|
||
pbar = GTK_PROGRESS_BAR (widget);
|
||
priv = pbar->priv;
|
||
|
||
context = gtk_widget_get_style_context (widget);
|
||
gtk_style_context_save_to_node (context, gtk_css_gadget_get_node (gadget));
|
||
|
||
layout = gtk_progress_bar_get_layout (pbar);
|
||
pango_layout_set_ellipsize (layout, priv->ellipsize);
|
||
if (priv->ellipsize)
|
||
pango_layout_set_width (layout, width * PANGO_SCALE);
|
||
|
||
gtk_render_layout (context, cr, x, y, layout);
|
||
|
||
g_object_unref (layout);
|
||
|
||
gtk_style_context_restore (context);
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static gboolean
|
||
gtk_progress_bar_render_trough (GtkCssGadget *gadget,
|
||
cairo_t *cr,
|
||
int x,
|
||
int y,
|
||
int width,
|
||
int height,
|
||
gpointer data)
|
||
{
|
||
GtkWidget *widget;
|
||
GtkProgressBarPrivate *priv;
|
||
|
||
widget = gtk_css_gadget_get_owner (gadget);
|
||
priv = GTK_PROGRESS_BAR (widget)->priv;
|
||
|
||
gtk_css_gadget_draw (priv->progress_gadget, cr);
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static gboolean
|
||
gtk_progress_bar_render (GtkCssGadget *gadget,
|
||
cairo_t *cr,
|
||
int x,
|
||
int y,
|
||
int width,
|
||
int height,
|
||
gpointer data)
|
||
{
|
||
GtkWidget *widget;
|
||
GtkProgressBarPrivate *priv;
|
||
|
||
widget = gtk_css_gadget_get_owner (gadget);
|
||
priv = GTK_PROGRESS_BAR (widget)->priv;
|
||
|
||
gtk_css_gadget_draw (priv->trough_gadget, cr);
|
||
if (priv->show_text)
|
||
gtk_css_gadget_draw (priv->text_gadget, cr);
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static gboolean
|
||
gtk_progress_bar_draw (GtkWidget *widget,
|
||
cairo_t *cr)
|
||
{
|
||
GtkProgressBar *pbar = GTK_PROGRESS_BAR (widget);
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
|
||
gtk_css_gadget_draw (priv->gadget, cr);
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_set_activity_mode (GtkProgressBar *pbar,
|
||
gboolean activity_mode)
|
||
{
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
|
||
activity_mode = !!activity_mode;
|
||
|
||
if (priv->activity_mode != activity_mode)
|
||
{
|
||
priv->activity_mode = activity_mode;
|
||
|
||
if (priv->activity_mode)
|
||
gtk_progress_bar_act_mode_enter (pbar);
|
||
else
|
||
gtk_progress_bar_act_mode_leave (pbar);
|
||
|
||
gtk_widget_queue_resize (GTK_WIDGET (pbar));
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_set_fraction:
|
||
* @pbar: a #GtkProgressBar
|
||
* @fraction: fraction of the task that’s been completed
|
||
*
|
||
* Causes the progress bar to “fill in” the given fraction
|
||
* of the bar. The fraction should be between 0.0 and 1.0,
|
||
* inclusive.
|
||
*/
|
||
void
|
||
gtk_progress_bar_set_fraction (GtkProgressBar *pbar,
|
||
gdouble fraction)
|
||
{
|
||
GtkProgressBarPrivate* priv;
|
||
|
||
g_return_if_fail (GTK_IS_PROGRESS_BAR (pbar));
|
||
|
||
priv = pbar->priv;
|
||
|
||
priv->fraction = CLAMP (fraction, 0.0, 1.0);
|
||
gtk_progress_bar_set_activity_mode (pbar, FALSE);
|
||
gtk_widget_queue_allocate (GTK_WIDGET (pbar));
|
||
update_fraction_classes (pbar);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (pbar), progress_props[PROP_FRACTION]);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_update_pulse (GtkProgressBar *pbar)
|
||
{
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
gint64 pulse_time = g_get_monotonic_time ();
|
||
|
||
if (priv->pulse2 == pulse_time)
|
||
return;
|
||
|
||
priv->pulse1 = priv->pulse2;
|
||
priv->pulse2 = pulse_time;
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_pulse:
|
||
* @pbar: a #GtkProgressBar
|
||
*
|
||
* Indicates that some progress has been made, but you don’t know how much.
|
||
* Causes the progress bar to enter “activity mode,” where a block
|
||
* bounces back and forth. Each call to gtk_progress_bar_pulse()
|
||
* causes the block to move by a little bit (the amount of movement
|
||
* per pulse is determined by gtk_progress_bar_set_pulse_step()).
|
||
*/
|
||
void
|
||
gtk_progress_bar_pulse (GtkProgressBar *pbar)
|
||
{
|
||
g_return_if_fail (GTK_IS_PROGRESS_BAR (pbar));
|
||
|
||
gtk_progress_bar_set_activity_mode (pbar, TRUE);
|
||
gtk_progress_bar_update_pulse (pbar);
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_set_text:
|
||
* @pbar: a #GtkProgressBar
|
||
* @text: (allow-none): a UTF-8 string, or %NULL
|
||
*
|
||
* Causes the given @text to appear next to the progress bar.
|
||
*
|
||
* If @text is %NULL and #GtkProgressBar:show-text is %TRUE, the current
|
||
* value of #GtkProgressBar:fraction will be displayed as a percentage.
|
||
*
|
||
* If @text is non-%NULL and #GtkProgressBar:show-text is %TRUE, the text
|
||
* will be displayed. In this case, it will not display the progress
|
||
* percentage. If @text is the empty string, the progress bar will still
|
||
* be styled and sized suitably for containing text, as long as
|
||
* #GtkProgressBar:show-text is %TRUE.
|
||
*/
|
||
void
|
||
gtk_progress_bar_set_text (GtkProgressBar *pbar,
|
||
const gchar *text)
|
||
{
|
||
GtkProgressBarPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_PROGRESS_BAR (pbar));
|
||
|
||
priv = pbar->priv;
|
||
|
||
/* Don't notify again if nothing's changed. */
|
||
if (g_strcmp0 (priv->text, text) == 0)
|
||
return;
|
||
|
||
g_free (priv->text);
|
||
priv->text = g_strdup (text);
|
||
|
||
gtk_widget_queue_resize (GTK_WIDGET (pbar));
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (pbar), progress_props[PROP_TEXT]);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_text_style_changed (GtkCssNode *node,
|
||
GtkCssStyleChange *change,
|
||
GtkProgressBar *pbar)
|
||
{
|
||
if (change == NULL ||
|
||
gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_TEXT_ATTRS) ||
|
||
gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_FONT))
|
||
{
|
||
gtk_widget_queue_resize (GTK_WIDGET (pbar));
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_set_show_text:
|
||
* @pbar: a #GtkProgressBar
|
||
* @show_text: whether to show text
|
||
*
|
||
* Sets whether the progress bar will show text next to the bar.
|
||
* The shown text is either the value of the #GtkProgressBar:text
|
||
* property or, if that is %NULL, the #GtkProgressBar:fraction value,
|
||
* as a percentage.
|
||
*
|
||
* To make a progress bar that is styled and sized suitably for containing
|
||
* text (even if the actual text is blank), set #GtkProgressBar:show-text to
|
||
* %TRUE and #GtkProgressBar:text to the empty string (not %NULL).
|
||
*
|
||
* Since: 3.0
|
||
*/
|
||
void
|
||
gtk_progress_bar_set_show_text (GtkProgressBar *pbar,
|
||
gboolean show_text)
|
||
{
|
||
GtkProgressBarPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_PROGRESS_BAR (pbar));
|
||
|
||
priv = pbar->priv;
|
||
|
||
show_text = !!show_text;
|
||
|
||
if (priv->show_text == show_text)
|
||
return;
|
||
|
||
priv->show_text = show_text;
|
||
|
||
if (show_text)
|
||
{
|
||
priv->text_gadget = gtk_css_custom_gadget_new ("text",
|
||
GTK_WIDGET (pbar),
|
||
priv->gadget,
|
||
priv->trough_gadget,
|
||
gtk_progress_bar_measure_text,
|
||
NULL,
|
||
gtk_progress_bar_render_text,
|
||
NULL,
|
||
NULL);
|
||
g_signal_connect (gtk_css_gadget_get_node (priv->text_gadget), "style-changed",
|
||
G_CALLBACK (gtk_progress_bar_text_style_changed), pbar);
|
||
|
||
update_node_state (pbar);
|
||
}
|
||
else
|
||
{
|
||
if (priv->text_gadget)
|
||
gtk_css_node_set_parent (gtk_css_gadget_get_node (priv->text_gadget), NULL);
|
||
g_clear_object (&priv->text_gadget);
|
||
}
|
||
|
||
gtk_widget_queue_resize (GTK_WIDGET (pbar));
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (pbar), progress_props[PROP_SHOW_TEXT]);
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_get_show_text:
|
||
* @pbar: a #GtkProgressBar
|
||
*
|
||
* Gets the value of the #GtkProgressBar:show-text property.
|
||
* See gtk_progress_bar_set_show_text().
|
||
*
|
||
* Returns: %TRUE if text is shown in the progress bar
|
||
*
|
||
* Since: 3.0
|
||
*/
|
||
gboolean
|
||
gtk_progress_bar_get_show_text (GtkProgressBar *pbar)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_PROGRESS_BAR (pbar), FALSE);
|
||
|
||
return pbar->priv->show_text;
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_set_pulse_step:
|
||
* @pbar: a #GtkProgressBar
|
||
* @fraction: fraction between 0.0 and 1.0
|
||
*
|
||
* Sets the fraction of total progress bar length to move the
|
||
* bouncing block for each call to gtk_progress_bar_pulse().
|
||
*/
|
||
void
|
||
gtk_progress_bar_set_pulse_step (GtkProgressBar *pbar,
|
||
gdouble fraction)
|
||
{
|
||
GtkProgressBarPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_PROGRESS_BAR (pbar));
|
||
|
||
priv = pbar->priv;
|
||
|
||
priv->pulse_fraction = fraction;
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (pbar), progress_props[PROP_PULSE_STEP]);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_direction_changed (GtkWidget *widget,
|
||
GtkTextDirection previous_dir)
|
||
{
|
||
GtkProgressBar *pbar = GTK_PROGRESS_BAR (widget);
|
||
|
||
update_node_classes (pbar);
|
||
update_node_state (pbar);
|
||
|
||
GTK_WIDGET_CLASS (gtk_progress_bar_parent_class)->direction_changed (widget, previous_dir);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_state_flags_changed (GtkWidget *widget,
|
||
GtkStateFlags previous_state)
|
||
{
|
||
GtkProgressBar *pbar = GTK_PROGRESS_BAR (widget);
|
||
|
||
update_node_state (pbar);
|
||
|
||
GTK_WIDGET_CLASS (gtk_progress_bar_parent_class)->state_flags_changed (widget, previous_state);
|
||
}
|
||
|
||
static void
|
||
gtk_progress_bar_set_orientation (GtkProgressBar *pbar,
|
||
GtkOrientation orientation)
|
||
{
|
||
GtkProgressBarPrivate *priv = pbar->priv;
|
||
|
||
if (priv->orientation == orientation)
|
||
return;
|
||
|
||
priv->orientation = orientation;
|
||
|
||
_gtk_orientable_set_style_classes (GTK_ORIENTABLE (pbar));
|
||
update_node_classes (pbar);
|
||
gtk_widget_queue_resize (GTK_WIDGET (pbar));
|
||
|
||
g_object_notify (G_OBJECT (pbar), "orientation");
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_set_inverted:
|
||
* @pbar: a #GtkProgressBar
|
||
* @inverted: %TRUE to invert the progress bar
|
||
*
|
||
* Progress bars normally grow from top to bottom or left to right.
|
||
* Inverted progress bars grow in the opposite direction.
|
||
*/
|
||
void
|
||
gtk_progress_bar_set_inverted (GtkProgressBar *pbar,
|
||
gboolean inverted)
|
||
{
|
||
GtkProgressBarPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_PROGRESS_BAR (pbar));
|
||
|
||
priv = pbar->priv;
|
||
|
||
if (priv->inverted == inverted)
|
||
return;
|
||
|
||
priv->inverted = inverted;
|
||
|
||
update_node_classes (pbar);
|
||
gtk_widget_queue_resize (GTK_WIDGET (pbar));
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (pbar), progress_props[PROP_INVERTED]);
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_get_text:
|
||
* @pbar: a #GtkProgressBar
|
||
*
|
||
* Retrieves the text that is displayed with the progress bar,
|
||
* if any, otherwise %NULL. The return value is a reference
|
||
* to the text, not a copy of it, so will become invalid
|
||
* if you change the text in the progress bar.
|
||
*
|
||
* Returns: (nullable): text, or %NULL; this string is owned by the widget
|
||
* and should not be modified or freed.
|
||
*/
|
||
const gchar*
|
||
gtk_progress_bar_get_text (GtkProgressBar *pbar)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_PROGRESS_BAR (pbar), NULL);
|
||
|
||
return pbar->priv->text;
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_get_fraction:
|
||
* @pbar: a #GtkProgressBar
|
||
*
|
||
* Returns the current fraction of the task that’s been completed.
|
||
*
|
||
* Returns: a fraction from 0.0 to 1.0
|
||
*/
|
||
gdouble
|
||
gtk_progress_bar_get_fraction (GtkProgressBar *pbar)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_PROGRESS_BAR (pbar), 0);
|
||
|
||
return pbar->priv->fraction;
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_get_pulse_step:
|
||
* @pbar: a #GtkProgressBar
|
||
*
|
||
* Retrieves the pulse step set with gtk_progress_bar_set_pulse_step().
|
||
*
|
||
* Returns: a fraction from 0.0 to 1.0
|
||
*/
|
||
gdouble
|
||
gtk_progress_bar_get_pulse_step (GtkProgressBar *pbar)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_PROGRESS_BAR (pbar), 0);
|
||
|
||
return pbar->priv->pulse_fraction;
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_get_inverted:
|
||
* @pbar: a #GtkProgressBar
|
||
*
|
||
* Gets the value set by gtk_progress_bar_set_inverted().
|
||
*
|
||
* Returns: %TRUE if the progress bar is inverted
|
||
*/
|
||
gboolean
|
||
gtk_progress_bar_get_inverted (GtkProgressBar *pbar)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_PROGRESS_BAR (pbar), FALSE);
|
||
|
||
return pbar->priv->inverted;
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_set_ellipsize:
|
||
* @pbar: a #GtkProgressBar
|
||
* @mode: a #PangoEllipsizeMode
|
||
*
|
||
* Sets the mode used to ellipsize (add an ellipsis: "...") the
|
||
* text if there is not enough space to render the entire string.
|
||
*
|
||
* Since: 2.6
|
||
*/
|
||
void
|
||
gtk_progress_bar_set_ellipsize (GtkProgressBar *pbar,
|
||
PangoEllipsizeMode mode)
|
||
{
|
||
GtkProgressBarPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_PROGRESS_BAR (pbar));
|
||
g_return_if_fail (mode >= PANGO_ELLIPSIZE_NONE &&
|
||
mode <= PANGO_ELLIPSIZE_END);
|
||
|
||
priv = pbar->priv;
|
||
|
||
if ((PangoEllipsizeMode)priv->ellipsize != mode)
|
||
{
|
||
priv->ellipsize = mode;
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (pbar), progress_props[PROP_ELLIPSIZE]);
|
||
gtk_widget_queue_resize (GTK_WIDGET (pbar));
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_progress_bar_get_ellipsize:
|
||
* @pbar: a #GtkProgressBar
|
||
*
|
||
* Returns the ellipsizing position of the progress bar.
|
||
* See gtk_progress_bar_set_ellipsize().
|
||
*
|
||
* Returns: #PangoEllipsizeMode
|
||
*
|
||
* Since: 2.6
|
||
*/
|
||
PangoEllipsizeMode
|
||
gtk_progress_bar_get_ellipsize (GtkProgressBar *pbar)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_PROGRESS_BAR (pbar), PANGO_ELLIPSIZE_NONE);
|
||
|
||
return pbar->priv->ellipsize;
|
||
}
|