173 lines
4.6 KiB
C
173 lines
4.6 KiB
C
/*
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* Copyright (c) 2012 Mike Massonnet <mmassonnet@xfce.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* See the file COPYING for the full license text.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <gtk/gtk.h>
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#include <libxfce4util/libxfce4util.h>
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#include "monitor-label.h"
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typedef struct _XnlpMonitorLabelClass XnlpMonitorLabelClass;
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struct _XnlpMonitorLabelClass
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{
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GtkLabelClass parent_class;
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};
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struct _XnlpMonitorLabel
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{
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GtkLabel parent;
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/*<private>*/
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GtkCssProvider *css_provider;
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gint count_width;
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gint count_height;
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gint width;
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gint height;
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};
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G_DEFINE_TYPE (XnlpMonitorLabel, xnlp_monitor_label, GTK_TYPE_LABEL)
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static void xnlp_monitor_label_constructed (GObject *object);
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static void cb_label_changed (GObject *object,
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GParamSpec *pspec,
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gpointer user_data);
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static void
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xnlp_monitor_label_class_init (XnlpMonitorLabelClass *klass)
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{
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GObjectClass *class = G_OBJECT_CLASS (klass);
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xnlp_monitor_label_parent_class = g_type_class_peek_parent (klass);
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}
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static void
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xnlp_monitor_label_init (XnlpMonitorLabel *label)
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{
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label->count_width = 0;
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label->count_height = 0;
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label->width = 0;
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label->height = 0;
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label->css_provider = gtk_css_provider_new ();
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gtk_style_context_add_provider (
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GTK_STYLE_CONTEXT (gtk_widget_get_style_context (GTK_WIDGET (label))),
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GTK_STYLE_PROVIDER (label->css_provider),
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GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
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g_signal_connect (label, "notify::label", G_CALLBACK (cb_label_changed), NULL);
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}
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static void
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cb_label_changed (GObject *object, GParamSpec *pspec, gpointer user_data)
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{
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XnlpMonitorLabel *label = XNLP_MONITOR_LABEL (object);
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GtkWidget *widget = GTK_WIDGET (object);
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GtkRequisition minimum_size;
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GtkRequisition natural_size;
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gtk_widget_set_size_request (widget, -1, -1);
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gtk_widget_get_preferred_size (widget, &minimum_size, &natural_size);
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if (minimum_size.width >= label->width)
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{
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label->width = minimum_size.width;
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label->count_width = 0;
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}
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else if (label->count_width > 10)
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{
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label->width = minimum_size.width;
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label->count_width = 0;
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}
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else
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{
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minimum_size.width = label->width;
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label->count_width++;
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}
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if (minimum_size.height >= label->height)
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{
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label->height = minimum_size.height;
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label->count_height = 0;
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}
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else if (label->count_height > 10)
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{
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label->height = minimum_size.height;
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label->count_height = 0;
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}
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else
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{
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minimum_size.height = label->height;
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label->count_height++;
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}
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gtk_widget_set_size_request (widget, minimum_size.width, minimum_size.height);
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}
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GtkWidget *
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xnlp_monitor_label_new (const gchar *str)
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{
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GtkLabel *label;
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label = g_object_new (XNLP_TYPE_MONITOR_LABEL, NULL);
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if (str && *str)
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gtk_label_set_text (label, str);
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return GTK_WIDGET (label);
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}
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void
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xnlp_monitor_label_set_color (XnlpMonitorLabel *label, GdkRGBA* color)
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{
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gchar * css;
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if (color != NULL)
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{
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#if GTK_CHECK_VERSION (3, 20, 0)
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css = g_strdup_printf("label { color: %s; }",
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#else
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css = g_strdup_printf(".label { color: %s; }",
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#endif
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gdk_rgba_to_string(color));
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}
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else
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{
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#if GTK_CHECK_VERSION (3, 20, 0)
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css = g_strdup_printf("label { color: inherit; }");
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#else
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css = g_strdup_printf(".label { color: inherit; }");
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#endif
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}
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gtk_css_provider_load_from_data (label->css_provider, css, strlen(css), NULL);
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DBG("setting label css: %s", gtk_css_provider_to_string (label->css_provider));
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g_free(css);
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}
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void
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xnlp_monitor_label_reinit_size_request (XnlpMonitorLabel *label)
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{
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label->count_width = 0;
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label->count_height = 0;
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label->width = 0;
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label->height = 0;
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gtk_widget_set_size_request (GTK_WIDGET (label), -1, -1);
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}
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