diff options
Diffstat (limited to 'libcolord-gtk/cd-sample-widget-gtk4.c')
| -rw-r--r-- | libcolord-gtk/cd-sample-widget-gtk4.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/libcolord-gtk/cd-sample-widget-gtk4.c b/libcolord-gtk/cd-sample-widget-gtk4.c new file mode 100644 index 0000000..a5abffa --- /dev/null +++ b/libcolord-gtk/cd-sample-widget-gtk4.c @@ -0,0 +1,209 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- + * + * Copyright (C) 2021 Georges Basile Stavracas Neto <georges.stavracas@gmail.com> + * 2012 Richard Hughes <richard@hughsie.com> + * + * Licensed under the GNU Lesser General Public License Version 2.1 + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" + +#include <gtk/gtk.h> +#include <colord.h> + +#include "cd-sample-widget.h" + +struct CdSampleWidgetPrivate +{ + cairo_t *cr; + CdColorRGB color; +}; + +G_DEFINE_TYPE_WITH_CODE (CdSampleWidget, cd_sample_widget, GTK_TYPE_DRAWING_AREA, + G_ADD_PRIVATE (CdSampleWidget)); + +enum +{ + PROP_0, + PROP_COLOR, +}; + +/** + * up_sample_get_property: + **/ +static void +up_sample_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) +{ + CdSampleWidget *sample = CD_SAMPLE_WIDGET (object); + CdSampleWidgetPrivate *priv = cd_sample_widget_get_instance_private (sample); + switch (prop_id) { + case PROP_COLOR: + g_value_set_boxed (value, &priv->color); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +/** + * up_sample_set_property: + **/ +static void +up_sample_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) +{ + CdColorRGB *tmp; + CdSampleWidget *sample = CD_SAMPLE_WIDGET (object); + CdSampleWidgetPrivate *priv = cd_sample_widget_get_instance_private (sample); + + switch (prop_id) { + case PROP_COLOR: + tmp = g_value_get_boxed (value); + cd_color_rgb_copy (tmp, &priv->color); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } + + /* refresh widget */ + gtk_widget_hide (GTK_WIDGET (sample)); + gtk_widget_show (GTK_WIDGET (sample)); +} + +/** + * cd_sample_widget_draw_rounded_rectangle: + **/ +static void +cd_sample_widget_draw_rounded_rectangle (cairo_t *cr, + gdouble x, + gdouble y, + gdouble width, + gdouble height, + gdouble corner_radius) +{ + gdouble aspect = width / height; + gdouble radius = corner_radius / aspect; + gdouble degrees = G_PI / 180.0; + + cairo_new_sub_path (cr); + cairo_arc (cr, x + width - radius, y + radius, + radius, -90 * degrees, 0 * degrees); + cairo_arc (cr, x + width - radius, y + height - radius, + radius, 0 * degrees, 90 * degrees); + cairo_arc (cr, x + radius, y + height - radius, + radius, 90 * degrees, 180 * degrees); + cairo_arc (cr, x + radius, y + radius, + radius, 180 * degrees, 270 * degrees); + cairo_close_path (cr); +} + +/** + * cd_sample_widget_draw: + **/ +static void +cd_sample_widget_draw (GtkDrawingArea *drawing_area, + cairo_t *cr, + int width, + int height, + gpointer user_data) +{ + CdSampleWidget *sample = CD_SAMPLE_WIDGET (drawing_area); + CdSampleWidgetPrivate *priv = cd_sample_widget_get_instance_private (sample); + CdColorRGB *color; + + color = &priv->color; + cairo_save (cr); + cairo_set_source_rgb (cr, color->R, color->G, color->B); + cd_sample_widget_draw_rounded_rectangle (cr, 0, 0, width, height, 10.5); + cairo_fill_preserve (cr); + cairo_set_source_rgba (cr, 0.5, 0.5, 0.5, 1.0); + cairo_set_line_width (cr, 1.0); + cairo_stroke (cr); + cairo_restore (cr); +} + +/** + * cd_sample_widget_class_init: + **/ +static void +cd_sample_widget_class_init (CdSampleWidgetClass *class) +{ + GObjectClass *object_class = G_OBJECT_CLASS (class); + + object_class->get_property = up_sample_get_property; + object_class->set_property = up_sample_set_property; + + /* properties */ + g_object_class_install_property (object_class, + PROP_COLOR, + g_param_spec_boxed ("color", NULL, NULL, + CD_TYPE_COLOR_RGB, + G_PARAM_READWRITE)); +} + +/** + * cd_sample_widget_init: + **/ +static void +cd_sample_widget_init (CdSampleWidget *sample) +{ + CdSampleWidgetPrivate *priv = cd_sample_widget_get_instance_private (sample); + + gtk_widget_set_cursor (GTK_WIDGET (sample), gdk_cursor_new_from_name ("blank", NULL)); + cd_color_rgb_set (&priv->color, 1.0, 1.0, 1.0); + gtk_drawing_area_set_draw_func (GTK_DRAWING_AREA (sample), + cd_sample_widget_draw, + sample, NULL); +} + +/** + * cd_sample_widget_set_color: + * @sample: This class instance + * @color: A color + * + * Sets the color for the sample widget + * + * Since: 0.1.24 + **/ +void +cd_sample_widget_set_color (CdSampleWidget *sample, const CdColorRGB *color) +{ + CdSampleWidgetPrivate *priv; + + g_return_if_fail (color != NULL); + g_return_if_fail (CD_IS_SAMPLE_WIDGET (sample)); + + priv = cd_sample_widget_get_instance_private (sample); + + /* set new color and refresh */ + cd_color_rgb_copy (color, &priv->color); + gtk_widget_queue_draw (GTK_WIDGET (sample)); +} + +/** + * cd_sample_widget_new: + * + * Return value: A new #CdSampleWidget object. + * + * Since: 0.1.24 + **/ +GtkWidget * +cd_sample_widget_new (void) +{ + return g_object_new (CD_TYPE_SAMPLE_WIDGET, NULL); +} |