464 lines
16 KiB
C
464 lines
16 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikacanvasprogress.c
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* Copyright (C) 2010 Michael Natterer <mitch@gimp.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 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libpikabase/pikabase.h"
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#include "libpikamath/pikamath.h"
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#include "display-types.h"
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#include "core/pikaprogress.h"
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#include "pikacanvas.h"
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#include "pikacanvas-style.h"
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#include "pikacanvasitem-utils.h"
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#include "pikacanvasprogress.h"
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#include "pikadisplayshell.h"
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#define BORDER 5
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#define RADIUS 20
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#define MIN_UPDATE_INTERVAL 50000 /* microseconds */
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enum
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{
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PROP_0,
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PROP_ANCHOR,
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PROP_X,
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PROP_Y
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};
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typedef struct _PikaCanvasProgressPrivate PikaCanvasProgressPrivate;
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struct _PikaCanvasProgressPrivate
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{
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PikaHandleAnchor anchor;
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gdouble x;
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gdouble y;
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gchar *text;
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gdouble value;
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guint64 last_update_time;
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};
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#define GET_PRIVATE(progress) \
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((PikaCanvasProgressPrivate *) pika_canvas_progress_get_instance_private ((PikaCanvasProgress *) (progress)))
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/* local function prototypes */
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static void pika_canvas_progress_iface_init (PikaProgressInterface *iface);
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static void pika_canvas_progress_finalize (GObject *object);
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static void pika_canvas_progress_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void pika_canvas_progress_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static void pika_canvas_progress_draw (PikaCanvasItem *item,
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cairo_t *cr);
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static cairo_region_t * pika_canvas_progress_get_extents (PikaCanvasItem *item);
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static gboolean pika_canvas_progress_hit (PikaCanvasItem *item,
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gdouble x,
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gdouble y);
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static PikaProgress * pika_canvas_progress_start (PikaProgress *progress,
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gboolean cancellable,
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const gchar *message);
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static void pika_canvas_progress_end (PikaProgress *progress);
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static gboolean pika_canvas_progress_is_active (PikaProgress *progress);
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static void pika_canvas_progress_set_text (PikaProgress *progress,
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const gchar *message);
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static void pika_canvas_progress_set_value (PikaProgress *progress,
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gdouble percentage);
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static gdouble pika_canvas_progress_get_value (PikaProgress *progress);
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static void pika_canvas_progress_pulse (PikaProgress *progress);
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static gboolean pika_canvas_progress_message (PikaProgress *progress,
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Pika *pika,
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PikaMessageSeverity severity,
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const gchar *domain,
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const gchar *message);
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G_DEFINE_TYPE_WITH_CODE (PikaCanvasProgress, pika_canvas_progress,
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PIKA_TYPE_CANVAS_ITEM,
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G_ADD_PRIVATE (PikaCanvasProgress)
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G_IMPLEMENT_INTERFACE (PIKA_TYPE_PROGRESS,
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pika_canvas_progress_iface_init))
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#define parent_class pika_canvas_progress_parent_class
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static void
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pika_canvas_progress_class_init (PikaCanvasProgressClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaCanvasItemClass *item_class = PIKA_CANVAS_ITEM_CLASS (klass);
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object_class->finalize = pika_canvas_progress_finalize;
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object_class->set_property = pika_canvas_progress_set_property;
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object_class->get_property = pika_canvas_progress_get_property;
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item_class->draw = pika_canvas_progress_draw;
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item_class->get_extents = pika_canvas_progress_get_extents;
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item_class->hit = pika_canvas_progress_hit;
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g_object_class_install_property (object_class, PROP_ANCHOR,
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g_param_spec_enum ("anchor", NULL, NULL,
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PIKA_TYPE_HANDLE_ANCHOR,
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PIKA_HANDLE_ANCHOR_CENTER,
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PIKA_PARAM_READWRITE));
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g_object_class_install_property (object_class, PROP_X,
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g_param_spec_double ("x", NULL, NULL,
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-PIKA_MAX_IMAGE_SIZE,
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PIKA_MAX_IMAGE_SIZE, 0,
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PIKA_PARAM_READWRITE));
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g_object_class_install_property (object_class, PROP_Y,
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g_param_spec_double ("y", NULL, NULL,
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-PIKA_MAX_IMAGE_SIZE,
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PIKA_MAX_IMAGE_SIZE, 0,
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PIKA_PARAM_READWRITE));
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}
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static void
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pika_canvas_progress_iface_init (PikaProgressInterface *iface)
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{
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iface->start = pika_canvas_progress_start;
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iface->end = pika_canvas_progress_end;
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iface->is_active = pika_canvas_progress_is_active;
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iface->set_text = pika_canvas_progress_set_text;
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iface->set_value = pika_canvas_progress_set_value;
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iface->get_value = pika_canvas_progress_get_value;
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iface->pulse = pika_canvas_progress_pulse;
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iface->message = pika_canvas_progress_message;
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}
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static void
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pika_canvas_progress_init (PikaCanvasProgress *progress)
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{
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}
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static void
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pika_canvas_progress_finalize (GObject *object)
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{
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PikaCanvasProgressPrivate *private = GET_PRIVATE (object);
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g_clear_pointer (&private->text, g_free);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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pika_canvas_progress_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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PikaCanvasProgressPrivate *private = GET_PRIVATE (object);
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switch (property_id)
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{
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case PROP_ANCHOR:
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private->anchor = g_value_get_enum (value);
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break;
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case PROP_X:
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private->x = g_value_get_double (value);
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break;
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case PROP_Y:
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private->y = g_value_get_double (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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pika_canvas_progress_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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PikaCanvasProgressPrivate *private = GET_PRIVATE (object);
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switch (property_id)
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{
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case PROP_ANCHOR:
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g_value_set_enum (value, private->anchor);
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break;
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case PROP_X:
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g_value_set_double (value, private->x);
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break;
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case PROP_Y:
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g_value_set_double (value, private->y);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static PangoLayout *
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pika_canvas_progress_transform (PikaCanvasItem *item,
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gdouble *x,
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gdouble *y,
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gint *width,
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gint *height)
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{
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PikaCanvasProgressPrivate *private = GET_PRIVATE (item);
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GtkWidget *canvas = pika_canvas_item_get_canvas (item);
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PangoLayout *layout;
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layout = pika_canvas_get_layout (PIKA_CANVAS (canvas), "%s",
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private->text);
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pango_layout_get_pixel_size (layout, width, height);
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*width = MAX (*width, 2 * RADIUS);
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*width += 2 * BORDER;
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*height += 3 * BORDER + 2 * RADIUS;
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pika_canvas_item_transform_xy_f (item,
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private->x, private->y,
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x, y);
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pika_canvas_item_shift_to_north_west (private->anchor,
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*x, *y,
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*width,
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*height,
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x, y);
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*x = floor (*x);
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*y = floor (*y);
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return layout;
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}
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static void
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pika_canvas_progress_draw (PikaCanvasItem *item,
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cairo_t *cr)
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{
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PikaCanvasProgressPrivate *private = GET_PRIVATE (item);
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GtkWidget *canvas = pika_canvas_item_get_canvas (item);
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gdouble x, y;
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gint width, height;
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pika_canvas_progress_transform (item, &x, &y, &width, &height);
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cairo_move_to (cr, x, y);
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cairo_line_to (cr, x + width, y);
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cairo_line_to (cr, x + width, y + height - BORDER - 2 * RADIUS);
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cairo_line_to (cr, x + 2 * BORDER + 2 * RADIUS, y + height - BORDER - 2 * RADIUS);
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cairo_arc (cr, x + BORDER + RADIUS, y + height - BORDER - RADIUS,
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BORDER + RADIUS, 0, G_PI);
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cairo_close_path (cr);
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_pika_canvas_item_fill (item, cr);
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cairo_move_to (cr, x + BORDER, y + BORDER);
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cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0);
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pango_cairo_show_layout (cr,
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pika_canvas_get_layout (PIKA_CANVAS (canvas),
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"%s", private->text));
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pika_canvas_set_tool_bg_style (pika_canvas_item_get_canvas (item), cr);
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cairo_arc (cr, x + BORDER + RADIUS, y + height - BORDER - RADIUS,
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RADIUS, - G_PI / 2.0, 2 * G_PI - G_PI / 2.0);
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cairo_fill (cr);
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cairo_set_source_rgba (cr, 0.0, 1.0, 0.0, 1.0);
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cairo_move_to (cr, x + BORDER + RADIUS, y + height - BORDER - RADIUS);
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cairo_arc (cr, x + BORDER + RADIUS, y + height - BORDER - RADIUS,
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RADIUS, - G_PI / 2.0, 2 * G_PI * private->value - G_PI / 2.0);
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cairo_fill (cr);
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}
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static cairo_region_t *
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pika_canvas_progress_get_extents (PikaCanvasItem *item)
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{
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cairo_rectangle_int_t rectangle;
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gdouble x, y;
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gint width, height;
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pika_canvas_progress_transform (item, &x, &y, &width, &height);
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/* add 1px on each side because fill()'s default impl does the same */
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rectangle.x = (gint) x - 1;
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rectangle.y = (gint) y - 1;
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rectangle.width = width + 2;
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rectangle.height = height + 2;
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return cairo_region_create_rectangle (&rectangle);
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}
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static gboolean
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pika_canvas_progress_hit (PikaCanvasItem *item,
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gdouble x,
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gdouble y)
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{
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gdouble px, py;
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gint pwidth, pheight;
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gdouble tx, ty;
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pika_canvas_progress_transform (item, &px, &py, &pwidth, &pheight);
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pika_canvas_item_transform_xy_f (item, x, y, &tx, &ty);
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pheight -= BORDER + 2 * RADIUS;
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return (tx >= px && tx < (px + pwidth) &&
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ty >= py && ty < (py + pheight));
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}
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static PikaProgress *
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pika_canvas_progress_start (PikaProgress *progress,
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gboolean cancellable,
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const gchar *message)
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{
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PikaCanvasProgressPrivate *private = GET_PRIVATE (progress);
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pika_canvas_progress_set_text (progress, message);
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private->last_update_time = g_get_monotonic_time ();
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return progress;
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}
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static void
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pika_canvas_progress_end (PikaProgress *progress)
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{
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}
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static gboolean
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pika_canvas_progress_is_active (PikaProgress *progress)
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{
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return TRUE;
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}
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static void
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pika_canvas_progress_set_text (PikaProgress *progress,
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const gchar *message)
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{
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PikaCanvasProgressPrivate *private = GET_PRIVATE (progress);
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cairo_region_t *old_region;
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cairo_region_t *new_region;
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old_region = pika_canvas_item_get_extents (PIKA_CANVAS_ITEM (progress));
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if (private->text)
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g_free (private->text);
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private->text = g_strdup (message);
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new_region = pika_canvas_item_get_extents (PIKA_CANVAS_ITEM (progress));
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cairo_region_union (new_region, old_region);
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cairo_region_destroy (old_region);
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_pika_canvas_item_update (PIKA_CANVAS_ITEM (progress), new_region);
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cairo_region_destroy (new_region);
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}
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static void
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pika_canvas_progress_set_value (PikaProgress *progress,
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gdouble percentage)
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{
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PikaCanvasProgressPrivate *private = GET_PRIVATE (progress);
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if (percentage != private->value)
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{
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guint64 time = g_get_monotonic_time ();
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private->value = percentage;
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if (time - private->last_update_time >= MIN_UPDATE_INTERVAL)
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{
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cairo_region_t *region;
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private->last_update_time = time;
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region = pika_canvas_item_get_extents (PIKA_CANVAS_ITEM (progress));
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_pika_canvas_item_update (PIKA_CANVAS_ITEM (progress), region);
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cairo_region_destroy (region);
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}
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}
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}
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static gdouble
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pika_canvas_progress_get_value (PikaProgress *progress)
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{
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PikaCanvasProgressPrivate *private = GET_PRIVATE (progress);
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return private->value;
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}
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static void
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pika_canvas_progress_pulse (PikaProgress *progress)
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{
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}
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static gboolean
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pika_canvas_progress_message (PikaProgress *progress,
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Pika *pika,
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PikaMessageSeverity severity,
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const gchar *domain,
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const gchar *message)
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{
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return FALSE;
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}
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PikaCanvasItem *
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pika_canvas_progress_new (PikaDisplayShell *shell,
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PikaHandleAnchor anchor,
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gdouble x,
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gdouble y)
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{
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g_return_val_if_fail (PIKA_IS_DISPLAY_SHELL (shell), NULL);
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return g_object_new (PIKA_TYPE_CANVAS_PROGRESS,
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"shell", shell,
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"anchor", anchor,
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"x", x,
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"y", y,
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NULL);
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}
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