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-rw-r--r--panels/sound/gvc-level-bar.c772
1 files changed, 0 insertions, 772 deletions
diff --git a/panels/sound/gvc-level-bar.c b/panels/sound/gvc-level-bar.c
deleted file mode 100644
index 39419465f..000000000
--- a/panels/sound/gvc-level-bar.c
+++ /dev/null
@@ -1,772 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
- *
- * Copyright (C) 2008 William Jon McCann <william.jon.mccann@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <math.h>
-
-#include <glib.h>
-#include <glib/gi18n-lib.h>
-#include <gtk/gtk.h>
-
-#include "gvc-level-bar.h"
-
-#define NUM_BOXES 30
-
-#define MIN_HORIZONTAL_BAR_WIDTH 150
-#define HORIZONTAL_BAR_HEIGHT 6
-#define VERTICAL_BAR_WIDTH 6
-#define MIN_VERTICAL_BAR_HEIGHT 400
-
-typedef struct {
- int peak_num;
- int max_peak_num;
-
- GdkRectangle area;
- int delta;
- int box_width;
- int box_height;
- int box_radius;
- double bg_r;
- double bg_g;
- double bg_b;
- double bdr_r;
- double bdr_g;
- double bdr_b;
- double fl_r;
- double fl_g;
- double fl_b;
-} LevelBarLayout;
-
-struct _GvcLevelBar
-{
- GtkWidget parent_instance;
-
- GtkOrientation orientation;
- GtkAdjustment *peak_adjustment;
- GtkAdjustment *rms_adjustment;
- GvcLevelScale scale;
- gdouble peak_fraction;
- gdouble rms_fraction;
- gdouble max_peak;
- guint max_peak_id;
- LevelBarLayout layout;
-};
-
-enum
-{
- PROP_0,
- PROP_PEAK_ADJUSTMENT,
- PROP_RMS_ADJUSTMENT,
- PROP_SCALE,
- PROP_ORIENTATION,
-};
-
-static void gvc_level_bar_class_init (GvcLevelBarClass *klass);
-static void gvc_level_bar_init (GvcLevelBar *level_bar);
-static void gvc_level_bar_finalize (GObject *object);
-
-G_DEFINE_TYPE (GvcLevelBar, gvc_level_bar, GTK_TYPE_WIDGET)
-
-#define check_rectangle(rectangle1, rectangle2) \
- { \
- /* .x and .y are always 0 */ \
- if (rectangle1.width != rectangle2.width) return TRUE; \
- if (rectangle1.height != rectangle2.height) return TRUE; \
- }
-
-static gboolean
-layout_changed (LevelBarLayout *layout1,
- LevelBarLayout *layout2)
-{
- check_rectangle (layout1->area, layout2->area);
- if (layout1->delta != layout2->delta) return TRUE;
- if (layout1->peak_num != layout2->peak_num) return TRUE;
- if (layout1->max_peak_num != layout2->max_peak_num) return TRUE;
- if (layout1->bg_r != layout2->bg_r
- || layout1->bg_g != layout2->bg_g
- || layout1->bg_b != layout2->bg_b)
- return TRUE;
- if (layout1->bdr_r != layout2->bdr_r
- || layout1->bdr_g != layout2->bdr_g
- || layout1->bdr_b != layout2->bdr_b)
- return TRUE;
- if (layout1->fl_r != layout2->fl_r
- || layout1->fl_g != layout2->fl_g
- || layout1->fl_b != layout2->fl_b)
- return TRUE;
-
- return FALSE;
-}
-
-static gdouble
-fraction_from_adjustment (GvcLevelBar *bar,
- GtkAdjustment *adjustment)
-{
- gdouble level;
- gdouble fraction;
- gdouble min;
- gdouble max;
-
- level = gtk_adjustment_get_value (adjustment);
-
- min = gtk_adjustment_get_lower (adjustment);
- max = gtk_adjustment_get_upper (adjustment);
-
- switch (bar->scale) {
- case GVC_LEVEL_SCALE_LINEAR:
- fraction = (level - min) / (max - min);
- break;
- case GVC_LEVEL_SCALE_LOG:
- fraction = log10 ((level - min + 1) / (max - min + 1));
- break;
- default:
- g_assert_not_reached ();
- }
-
- return fraction;
-}
-
-static gboolean
-reset_max_peak (GvcLevelBar *bar)
-{
- gdouble min;
-
- min = gtk_adjustment_get_lower (bar->peak_adjustment);
- bar->max_peak = min;
- bar->layout.max_peak_num = 0;
- gtk_widget_queue_draw (GTK_WIDGET (bar));
- bar->max_peak_id = 0;
- return FALSE;
-}
-
-static void
-bar_calc_layout (GvcLevelBar *bar)
-{
- GdkColor color;
- int peak_level;
- int max_peak_level;
- GtkAllocation allocation;
- GtkStyle *style;
-
- gtk_widget_get_allocation (GTK_WIDGET (bar), &allocation);
- bar->layout.area.width = allocation.width - 2;
- bar->layout.area.height = allocation.height - 2;
-
- style = gtk_widget_get_style (GTK_WIDGET (bar));
- color = style->bg [GTK_STATE_NORMAL];
- bar->layout.bg_r = (float)color.red / 65535.0;
- bar->layout.bg_g = (float)color.green / 65535.0;
- bar->layout.bg_b = (float)color.blue / 65535.0;
- color = style->dark [GTK_STATE_NORMAL];
- bar->layout.bdr_r = (float)color.red / 65535.0;
- bar->layout.bdr_g = (float)color.green / 65535.0;
- bar->layout.bdr_b = (float)color.blue / 65535.0;
- color = style->bg [GTK_STATE_SELECTED];
- bar->layout.fl_r = (float)color.red / 65535.0;
- bar->layout.fl_g = (float)color.green / 65535.0;
- bar->layout.fl_b = (float)color.blue / 65535.0;
-
- if (bar->orientation == GTK_ORIENTATION_VERTICAL) {
- peak_level = bar->peak_fraction * bar->layout.area.height;
- max_peak_level = bar->max_peak * bar->layout.area.height;
-
- bar->layout.delta = bar->layout.area.height / NUM_BOXES;
- bar->layout.area.x = 0;
- bar->layout.area.y = 0;
- bar->layout.box_height = bar->layout.delta / 2;
- bar->layout.box_width = bar->layout.area.width;
- bar->layout.box_radius = bar->layout.box_width / 2;
- } else {
- peak_level = bar->peak_fraction * bar->layout.area.width;
- max_peak_level = bar->max_peak * bar->layout.area.width;
-
- bar->layout.delta = bar->layout.area.width / NUM_BOXES;
- bar->layout.area.x = 0;
- bar->layout.area.y = 0;
- bar->layout.box_width = bar->layout.delta / 2;
- bar->layout.box_height = bar->layout.area.height;
- bar->layout.box_radius = bar->layout.box_height / 2;
- }
-
- /* This can happen if the level bar isn't realized */
- if (bar->layout.delta == 0)
- return;
-
- bar->layout.peak_num = peak_level / bar->layout.delta;
- bar->layout.max_peak_num = max_peak_level / bar->layout.delta;
-}
-
-static void
-update_peak_value (GvcLevelBar *bar)
-{
- gdouble val;
- LevelBarLayout layout;
-
- layout = bar->layout;
-
- val = fraction_from_adjustment (bar, bar->peak_adjustment);
- bar->peak_fraction = val;
-
- if (val > bar->max_peak) {
- if (bar->max_peak_id > 0) {
- g_source_remove (bar->max_peak_id);
- }
- bar->max_peak_id = g_timeout_add_seconds (1, (GSourceFunc)reset_max_peak, bar);
- bar->max_peak = val;
- }
-
- bar_calc_layout (bar);
-
- if (layout_changed (&bar->layout, &layout)) {
- gtk_widget_queue_draw (GTK_WIDGET (bar));
- }
-}
-
-static void
-update_rms_value (GvcLevelBar *bar)
-{
- gdouble val;
-
- val = fraction_from_adjustment (bar, bar->rms_adjustment);
- bar->rms_fraction = val;
-}
-
-GtkOrientation
-gvc_level_bar_get_orientation (GvcLevelBar *bar)
-{
- g_return_val_if_fail (GVC_IS_LEVEL_BAR (bar), 0);
- return bar->orientation;
-}
-
-void
-gvc_level_bar_set_orientation (GvcLevelBar *bar,
- GtkOrientation orientation)
-{
- g_return_if_fail (GVC_IS_LEVEL_BAR (bar));
-
- if (orientation != bar->orientation) {
- bar->orientation = orientation;
- gtk_widget_queue_draw (GTK_WIDGET (bar));
- g_object_notify (G_OBJECT (bar), "orientation");
- }
-}
-
-static void
-on_peak_adjustment_value_changed (GtkAdjustment *adjustment,
- GvcLevelBar *bar)
-{
- update_peak_value (bar);
-}
-
-static void
-on_rms_adjustment_value_changed (GtkAdjustment *adjustment,
- GvcLevelBar *bar)
-{
- update_rms_value (bar);
-}
-
-void
-gvc_level_bar_set_peak_adjustment (GvcLevelBar *bar,
- GtkAdjustment *adjustment)
-{
- g_return_if_fail (GVC_LEVEL_BAR (bar));
- g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
-
- if (bar->peak_adjustment != NULL) {
- g_signal_handlers_disconnect_by_func (bar->peak_adjustment,
- G_CALLBACK (on_peak_adjustment_value_changed),
- bar);
- g_object_unref (bar->peak_adjustment);
- }
-
- bar->peak_adjustment = g_object_ref_sink (adjustment);
-
- g_signal_connect (bar->peak_adjustment,
- "value-changed",
- G_CALLBACK (on_peak_adjustment_value_changed),
- bar);
-
- update_peak_value (bar);
-
- g_object_notify (G_OBJECT (bar), "peak-adjustment");
-}
-
-void
-gvc_level_bar_set_rms_adjustment (GvcLevelBar *bar,
- GtkAdjustment *adjustment)
-{
- g_return_if_fail (GVC_LEVEL_BAR (bar));
- g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
-
- if (bar->rms_adjustment != NULL) {
- g_signal_handlers_disconnect_by_func (bar->peak_adjustment,
- G_CALLBACK (on_rms_adjustment_value_changed),
- bar);
- g_object_unref (bar->rms_adjustment);
- }
-
- bar->rms_adjustment = g_object_ref_sink (adjustment);
-
-
- g_signal_connect (bar->peak_adjustment,
- "value-changed",
- G_CALLBACK (on_peak_adjustment_value_changed),
- bar);
-
- update_rms_value (bar);
-
- g_object_notify (G_OBJECT (bar), "rms-adjustment");
-}
-
-GtkAdjustment *
-gvc_level_bar_get_peak_adjustment (GvcLevelBar *bar)
-{
- g_return_val_if_fail (GVC_IS_LEVEL_BAR (bar), NULL);
-
- return bar->peak_adjustment;
-}
-
-GtkAdjustment *
-gvc_level_bar_get_rms_adjustment (GvcLevelBar *bar)
-{
- g_return_val_if_fail (GVC_IS_LEVEL_BAR (bar), NULL);
-
- return bar->rms_adjustment;
-}
-
-void
-gvc_level_bar_set_scale (GvcLevelBar *bar,
- GvcLevelScale scale)
-{
- g_return_if_fail (GVC_IS_LEVEL_BAR (bar));
-
- if (scale != bar->scale) {
- bar->scale = scale;
-
- update_peak_value (bar);
- update_rms_value (bar);
-
- g_object_notify (G_OBJECT (bar), "scale");
- }
-}
-
-static void
-gvc_level_bar_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- GvcLevelBar *self = GVC_LEVEL_BAR (object);
-
- switch (prop_id) {
- case PROP_SCALE:
- gvc_level_bar_set_scale (self, g_value_get_int (value));
- break;
- case PROP_ORIENTATION:
- gvc_level_bar_set_orientation (self, g_value_get_enum (value));
- break;
- case PROP_PEAK_ADJUSTMENT:
- gvc_level_bar_set_peak_adjustment (self, g_value_get_object (value));
- break;
- case PROP_RMS_ADJUSTMENT:
- gvc_level_bar_set_rms_adjustment (self, g_value_get_object (value));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gvc_level_bar_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- GvcLevelBar *self = GVC_LEVEL_BAR (object);
-
- switch (prop_id) {
- case PROP_SCALE:
- g_value_set_int (value, self->scale);
- break;
- case PROP_ORIENTATION:
- g_value_set_enum (value, self->orientation);
- break;
- case PROP_PEAK_ADJUSTMENT:
- g_value_set_object (value, self->peak_adjustment);
- break;
- case PROP_RMS_ADJUSTMENT:
- g_value_set_object (value, self->rms_adjustment);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static GObject *
-gvc_level_bar_constructor (GType type,
- guint n_construct_properties,
- GObjectConstructParam *construct_params)
-{
- return G_OBJECT_CLASS (gvc_level_bar_parent_class)->constructor (type, n_construct_properties, construct_params);
-}
-
-static void
-gvc_level_bar_size_request (GtkWidget *widget,
- GtkRequisition *requisition)
-{
- GvcLevelBar *bar = GVC_LEVEL_BAR (widget);
-
- switch (bar->orientation) {
- case GTK_ORIENTATION_VERTICAL:
- requisition->width = VERTICAL_BAR_WIDTH;
- requisition->height = MIN_VERTICAL_BAR_HEIGHT;
- break;
- case GTK_ORIENTATION_HORIZONTAL:
- requisition->width = MIN_HORIZONTAL_BAR_WIDTH;
- requisition->height = HORIZONTAL_BAR_HEIGHT;
- break;
- default:
- g_assert_not_reached ();
- break;
- }
-}
-
-static void
-gvc_level_bar_get_preferred_width (GtkWidget *widget,
- gint *minimum,
- gint *natural)
-{
- GtkRequisition requisition;
-
- gvc_level_bar_size_request (widget, &requisition);
-
- if (minimum != NULL) {
- *minimum = requisition.width;
- }
- if (natural != NULL) {
- *natural = requisition.width;
- }
-}
-
-static void
-gvc_level_bar_get_preferred_height (GtkWidget *widget,
- gint *minimum,
- gint *natural)
-{
- GtkRequisition requisition;
-
- gvc_level_bar_size_request (widget, &requisition);
-
- if (minimum != NULL) {
- *minimum = requisition.height;
- }
- if (natural != NULL) {
- *natural = requisition.height;
- }
-}
-
-static void
-gvc_level_bar_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
-{
- GvcLevelBar *bar;
-
- g_return_if_fail (GVC_IS_LEVEL_BAR (widget));
- g_return_if_fail (allocation != NULL);
-
- bar = GVC_LEVEL_BAR (widget);
-
- /* FIXME: add height property, labels, etc */
- GTK_WIDGET_CLASS (gvc_level_bar_parent_class)->size_allocate (widget, allocation);
-
- gtk_widget_set_allocation (widget, allocation);
- gtk_widget_get_allocation (widget, allocation);
-
- if (bar->orientation == GTK_ORIENTATION_VERTICAL) {
- allocation->height = MIN (allocation->height, MIN_VERTICAL_BAR_HEIGHT);
- allocation->width = MAX (allocation->width, VERTICAL_BAR_WIDTH);
- } else {
- allocation->width = MIN (allocation->width, MIN_HORIZONTAL_BAR_WIDTH);
- allocation->height = MAX (allocation->height, HORIZONTAL_BAR_HEIGHT);
- }
-
- bar_calc_layout (bar);
-}
-
-static void
-curved_rectangle (cairo_t *cr,
- double _x0,
- double _y0,
- double width,
- double height,
- double radius)
-{
- double x1;
- double _y1;
-
- x1 = _x0 + width;
- _y1 = _y0 + height;
-
- if (!width || !height) {
- return;
- }
-
- if (width / 2 < radius) {
- if (height / 2 < radius) {
- cairo_move_to (cr, _x0, (_y0 + _y1) / 2);
- cairo_curve_to (cr, _x0 ,_y0, _x0, _y0, (_x0 + x1) / 2, _y0);
- cairo_curve_to (cr, x1, _y0, x1, _y0, x1, (_y0 + _y1) / 2);
- cairo_curve_to (cr, x1, _y1, x1, _y1, (x1 + _x0) / 2, _y1);
- cairo_curve_to (cr, _x0, _y1, _x0, _y1, _x0, (_y0 + _y1) / 2);
- } else {
- cairo_move_to (cr, _x0, _y0 + radius);
- cairo_curve_to (cr, _x0, _y0, _x0, _y0, (_x0 + x1) / 2, _y0);
- cairo_curve_to (cr, x1, _y0, x1, _y0, x1, _y0 + radius);
- cairo_line_to (cr, x1, _y1 - radius);
- cairo_curve_to (cr, x1, _y1, x1, _y1, (x1 + _x0) / 2, _y1);
- cairo_curve_to (cr, _x0, _y1, _x0, _y1, _x0, _y1 - radius);
- }
- } else {
- if (height / 2 < radius) {
- cairo_move_to (cr, _x0, (_y0 + _y1) / 2);
- cairo_curve_to (cr, _x0, _y0, _x0 , _y0, _x0 + radius, _y0);
- cairo_line_to (cr, x1 - radius, _y0);
- cairo_curve_to (cr, x1, _y0, x1, _y0, x1, (_y0 + _y1) / 2);
- cairo_curve_to (cr, x1, _y1, x1, _y1, x1 - radius, _y1);
- cairo_line_to (cr, _x0 + radius, _y1);
- cairo_curve_to (cr, _x0, _y1, _x0, _y1, _x0, (_y0 + _y1) / 2);
- } else {
- cairo_move_to (cr, _x0, _y0 + radius);
- cairo_curve_to (cr, _x0 , _y0, _x0 , _y0, _x0 + radius, _y0);
- cairo_line_to (cr, x1 - radius, _y0);
- cairo_curve_to (cr, x1, _y0, x1, _y0, x1, _y0 + radius);
- cairo_line_to (cr, x1, _y1 - radius);
- cairo_curve_to (cr, x1, _y1, x1, _y1, x1 - radius, _y1);
- cairo_line_to (cr, _x0 + radius, _y1);
- cairo_curve_to (cr, _x0, _y1, _x0, _y1, _x0, _y1 - radius);
- }
- }
-
- cairo_close_path (cr);
-}
-
-static int
-gvc_level_bar_draw (GtkWidget *widget,
- cairo_t *cr)
-{
- GvcLevelBar *bar;
-
- g_return_val_if_fail (GVC_IS_LEVEL_BAR (widget), FALSE);
-
- bar = GVC_LEVEL_BAR (widget);
-
- cairo_save (cr);
-
- if (bar->orientation == GTK_ORIENTATION_VERTICAL) {
- int i;
- int by;
-
- for (i = 0; i < NUM_BOXES; i++) {
- by = i * bar->layout.delta;
- curved_rectangle (cr,
- bar->layout.area.x + 0.5,
- by + 0.5,
- bar->layout.box_width - 1,
- bar->layout.box_height - 1,
- bar->layout.box_radius);
- if ((bar->layout.max_peak_num - 1) == i) {
- /* fill peak foreground */
- cairo_set_source_rgb (cr, bar->layout.fl_r, bar->layout.fl_g, bar->layout.fl_b);
- cairo_fill_preserve (cr);
- } else if ((bar->layout.peak_num - 1) >= i) {
- /* fill background */
- cairo_set_source_rgb (cr, bar->layout.bg_r, bar->layout.bg_g, bar->layout.bg_b);
- cairo_fill_preserve (cr);
- /* fill foreground */
- cairo_set_source_rgba (cr, bar->layout.fl_r, bar->layout.fl_g, bar->layout.fl_b, 0.5);
- cairo_fill_preserve (cr);
- } else {
- /* fill background */
- cairo_set_source_rgb (cr, bar->layout.bg_r, bar->layout.bg_g, bar->layout.bg_b);
- cairo_fill_preserve (cr);
- }
-
- /* stroke border */
- cairo_set_source_rgb (cr, bar->layout.bdr_r, bar->layout.bdr_g, bar->layout.bdr_b);
- cairo_set_line_width (cr, 1);
- cairo_stroke (cr);
- }
-
- } else {
- int i;
- int bx;
-
- if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) {
- cairo_scale (cr, -1, 1);
- cairo_translate (cr, -gtk_widget_get_allocated_width (widget), 0);
- }
-
- for (i = 0; i < NUM_BOXES; i++) {
- bx = i * bar->layout.delta;
- curved_rectangle (cr,
- bx + 0.5,
- bar->layout.area.y + 0.5,
- bar->layout.box_width - 1,
- bar->layout.box_height - 1,
- bar->layout.box_radius);
-
- if ((bar->layout.max_peak_num - 1) == i) {
- /* fill peak foreground */
- cairo_set_source_rgb (cr, bar->layout.fl_r, bar->layout.fl_g, bar->layout.fl_b);
- cairo_fill_preserve (cr);
- } else if ((bar->layout.peak_num - 1) >= i) {
- /* fill background */
- cairo_set_source_rgb (cr, bar->layout.bg_r, bar->layout.bg_g, bar->layout.bg_b);
- cairo_fill_preserve (cr);
- /* fill foreground */
- cairo_set_source_rgba (cr, bar->layout.fl_r, bar->layout.fl_g, bar->layout.fl_b, 0.5);
- cairo_fill_preserve (cr);
- } else {
- /* fill background */
- cairo_set_source_rgb (cr, bar->layout.bg_r, bar->layout.bg_g, bar->layout.bg_b);
- cairo_fill_preserve (cr);
- }
-
- /* stroke border */
- cairo_set_source_rgb (cr, bar->layout.bdr_r, bar->layout.bdr_g, bar->layout.bdr_b);
- cairo_set_line_width (cr, 1);
- cairo_stroke (cr);
- }
- }
-
- cairo_restore (cr);
-
- return FALSE;
-}
-
-static void
-gvc_level_bar_class_init (GvcLevelBarClass *klass)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (klass);
- GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-
- object_class->constructor = gvc_level_bar_constructor;
- object_class->finalize = gvc_level_bar_finalize;
- object_class->set_property = gvc_level_bar_set_property;
- object_class->get_property = gvc_level_bar_get_property;
-
- widget_class->draw = gvc_level_bar_draw;
- widget_class->get_preferred_width = gvc_level_bar_get_preferred_width;
- widget_class->get_preferred_height = gvc_level_bar_get_preferred_height;
- widget_class->size_allocate = gvc_level_bar_size_allocate;
-
- g_object_class_install_property (object_class,
- PROP_ORIENTATION,
- g_param_spec_enum ("orientation",
- "Orientation",
- "The orientation of the bar",
- GTK_TYPE_ORIENTATION,
- GTK_ORIENTATION_HORIZONTAL,
- G_PARAM_READWRITE));
- g_object_class_install_property (object_class,
- PROP_PEAK_ADJUSTMENT,
- g_param_spec_object ("peak-adjustment",
- "Peak Adjustment",
- "The GtkAdjustment that contains the current peak value",
- GTK_TYPE_ADJUSTMENT,
- G_PARAM_READWRITE));
- g_object_class_install_property (object_class,
- PROP_RMS_ADJUSTMENT,
- g_param_spec_object ("rms-adjustment",
- "RMS Adjustment",
- "The GtkAdjustment that contains the current rms value",
- GTK_TYPE_ADJUSTMENT,
- G_PARAM_READWRITE));
- g_object_class_install_property (object_class,
- PROP_SCALE,
- g_param_spec_int ("scale",
- "Scale",
- "Scale",
- 0,
- G_MAXINT,
- GVC_LEVEL_SCALE_LINEAR,
- G_PARAM_READWRITE|G_PARAM_CONSTRUCT));
-}
-
-static void
-gvc_level_bar_init (GvcLevelBar *bar)
-{
- bar->peak_adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0.0,
- 0.0,
- 1.0,
- 0.05,
- 0.1,
- 0.1));
- g_object_ref_sink (bar->peak_adjustment);
- g_signal_connect (bar->peak_adjustment,
- "value-changed",
- G_CALLBACK (on_peak_adjustment_value_changed),
- bar);
-
- bar->rms_adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0.0,
- 0.0,
- 1.0,
- 0.05,
- 0.1,
- 0.1));
- g_object_ref_sink (bar->rms_adjustment);
- g_signal_connect (bar->rms_adjustment,
- "value-changed",
- G_CALLBACK (on_rms_adjustment_value_changed),
- bar);
-
- gtk_widget_set_has_window (GTK_WIDGET (bar), FALSE);
-}
-
-static void
-gvc_level_bar_finalize (GObject *object)
-{
- GvcLevelBar *bar;
-
- g_return_if_fail (object != NULL);
- g_return_if_fail (GVC_IS_LEVEL_BAR (object));
-
- bar = GVC_LEVEL_BAR (object);
-
- if (bar->max_peak_id > 0) {
- g_source_remove (bar->max_peak_id);
- }
-
- G_OBJECT_CLASS (gvc_level_bar_parent_class)->finalize (object);
-}
-
-GtkWidget *
-gvc_level_bar_new (void)
-{
- GObject *bar;
- bar = g_object_new (GVC_TYPE_LEVEL_BAR,
- NULL);
- return GTK_WIDGET (bar);
-}
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