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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:30:19 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:30:19 +0000 |
commit | 5c1676dfe6d2f3c837a5e074117b45613fd29a72 (patch) | |
tree | cbffb45144febf451e54061db2b21395faf94bfe /app/widgets/gimpfgbgview.c | |
parent | Initial commit. (diff) | |
download | gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.tar.xz gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.zip |
Adding upstream version 2.10.34.upstream/2.10.34upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | app/widgets/gimpfgbgview.c | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/app/widgets/gimpfgbgview.c b/app/widgets/gimpfgbgview.c new file mode 100644 index 0000000..2047d4d --- /dev/null +++ b/app/widgets/gimpfgbgview.c @@ -0,0 +1,329 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * gimpfgbgview.c + * Copyright (C) 2005 Sven Neumann <sven@gimp.org> + * + * 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 3 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 <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <string.h> + +#include <gegl.h> +#include <gtk/gtk.h> + +#include "libgimpcolor/gimpcolor.h" +#include "libgimpwidgets/gimpwidgets.h" + +#include "widgets-types.h" + +#include "config/gimpcoreconfig.h" + +#include "core/gimp.h" +#include "core/gimpcontext.h" +#include "core/gimpmarshal.h" + +#include "gimpdnd.h" +#include "gimpfgbgview.h" + + +enum +{ + PROP_0, + PROP_CONTEXT +}; + + +static void gimp_fg_bg_view_dispose (GObject *object); +static void gimp_fg_bg_view_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec); +static void gimp_fg_bg_view_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec); + +static gboolean gimp_fg_bg_view_expose (GtkWidget *widget, + GdkEventExpose *eevent); + +static void gimp_fg_bg_view_create_transform (GimpFgBgView *view); +static void gimp_fg_bg_view_destroy_transform (GimpFgBgView *view); + + +G_DEFINE_TYPE (GimpFgBgView, gimp_fg_bg_view, GTK_TYPE_WIDGET) + +#define parent_class gimp_fg_bg_view_parent_class + + +static void +gimp_fg_bg_view_class_init (GimpFgBgViewClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); + + object_class->dispose = gimp_fg_bg_view_dispose; + object_class->set_property = gimp_fg_bg_view_set_property; + object_class->get_property = gimp_fg_bg_view_get_property; + + widget_class->expose_event = gimp_fg_bg_view_expose; + + g_object_class_install_property (object_class, PROP_CONTEXT, + g_param_spec_object ("context", + NULL, NULL, + GIMP_TYPE_CONTEXT, + GIMP_PARAM_READWRITE)); +} + +static void +gimp_fg_bg_view_init (GimpFgBgView *view) +{ + gtk_widget_set_has_window (GTK_WIDGET (view), FALSE); + + gimp_widget_track_monitor (GTK_WIDGET (view), + G_CALLBACK (gimp_fg_bg_view_destroy_transform), + NULL); +} + +static void +gimp_fg_bg_view_dispose (GObject *object) +{ + GimpFgBgView *view = GIMP_FG_BG_VIEW (object); + + if (view->context) + gimp_fg_bg_view_set_context (view, NULL); + + G_OBJECT_CLASS (parent_class)->dispose (object); +} + +static void +gimp_fg_bg_view_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + GimpFgBgView *view = GIMP_FG_BG_VIEW (object); + + switch (property_id) + { + case PROP_CONTEXT: + gimp_fg_bg_view_set_context (view, g_value_get_object (value)); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_fg_bg_view_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + GimpFgBgView *view = GIMP_FG_BG_VIEW (object); + + switch (property_id) + { + case PROP_CONTEXT: + g_value_set_object (value, view->context); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static gboolean +gimp_fg_bg_view_expose (GtkWidget *widget, + GdkEventExpose *eevent) +{ + GimpFgBgView *view = GIMP_FG_BG_VIEW (widget); + GtkStyle *style = gtk_widget_get_style (widget); + GdkWindow *window = gtk_widget_get_window (widget); + cairo_t *cr; + GtkAllocation allocation; + gint rect_w, rect_h; + GimpRGB color; + + if (! gtk_widget_is_drawable (widget)) + return FALSE; + + cr = gdk_cairo_create (eevent->window); + + gdk_cairo_region (cr, eevent->region); + cairo_clip (cr); + + gtk_widget_get_allocation (widget, &allocation); + + cairo_translate (cr, allocation.x, allocation.y); + + rect_w = allocation.width * 3 / 4; + rect_h = allocation.height * 3 / 4; + + if (! view->transform) + gimp_fg_bg_view_create_transform (view); + + /* draw the background area */ + + if (view->context) + { + gimp_context_get_background (view->context, &color); + + if (view->transform) + gimp_color_transform_process_pixels (view->transform, + babl_format ("R'G'B'A double"), + &color, + babl_format ("R'G'B'A double"), + &color, + 1); + + gimp_cairo_set_source_rgb (cr, &color); + + cairo_rectangle (cr, + allocation.width - rect_w + 1, + allocation.height - rect_h + 1, + rect_w - 2, + rect_h - 2); + cairo_fill (cr); + } + + gtk_paint_shadow (style, window, GTK_STATE_NORMAL, + GTK_SHADOW_IN, + NULL, widget, NULL, + allocation.x + allocation.width - rect_w, + allocation.y + allocation.height - rect_h, + rect_w, rect_h); + + /* draw the foreground area */ + + if (view->context) + { + gimp_context_get_foreground (view->context, &color); + + if (view->transform) + gimp_color_transform_process_pixels (view->transform, + babl_format ("R'G'B'A double"), + &color, + babl_format ("R'G'B'A double"), + &color, + 1); + + gimp_cairo_set_source_rgb (cr, &color); + + cairo_rectangle (cr, 1, 1, rect_w - 2, rect_h - 2); + cairo_fill (cr); + } + + gtk_paint_shadow (style, window, GTK_STATE_NORMAL, + GTK_SHADOW_OUT, + NULL, widget, NULL, + allocation.x, allocation.y, rect_w, rect_h); + + cairo_destroy (cr); + + return TRUE; +} + +static void +gimp_fg_bg_view_create_transform (GimpFgBgView *view) +{ + if (view->color_config) + { + static GimpColorProfile *profile = NULL; + + if (G_UNLIKELY (! profile)) + profile = gimp_color_profile_new_rgb_srgb (); + + view->transform = + gimp_widget_get_color_transform (GTK_WIDGET (view), + view->color_config, + profile, + babl_format ("R'G'B'A double"), + babl_format ("R'G'B'A double")); + } +} + +static void +gimp_fg_bg_view_destroy_transform (GimpFgBgView *view) +{ + g_clear_object (&view->transform); + + gtk_widget_queue_draw (GTK_WIDGET (view)); +} + + +/* public functions */ + +GtkWidget * +gimp_fg_bg_view_new (GimpContext *context) +{ + g_return_val_if_fail (context == NULL || GIMP_IS_CONTEXT (context), NULL); + + return g_object_new (GIMP_TYPE_FG_BG_VIEW, + "context", context, + NULL); +} + +void +gimp_fg_bg_view_set_context (GimpFgBgView *view, + GimpContext *context) +{ + g_return_if_fail (GIMP_IS_FG_BG_VIEW (view)); + g_return_if_fail (context == NULL || GIMP_IS_CONTEXT (context)); + + if (context != view->context) + { + if (view->context) + { + g_signal_handlers_disconnect_by_func (view->context, + gtk_widget_queue_draw, + view); + g_clear_object (&view->context); + + g_signal_handlers_disconnect_by_func (view->color_config, + gimp_fg_bg_view_destroy_transform, + view); + g_clear_object (&view->color_config); + } + + view->context = context; + + if (context) + { + g_object_ref (context); + + g_signal_connect_swapped (context, "foreground-changed", + G_CALLBACK (gtk_widget_queue_draw), + view); + g_signal_connect_swapped (context, "background-changed", + G_CALLBACK (gtk_widget_queue_draw), + view); + + view->color_config = g_object_ref (context->gimp->config->color_management); + + g_signal_connect_swapped (view->color_config, "notify", + G_CALLBACK (gimp_fg_bg_view_destroy_transform), + view); + } + + gimp_fg_bg_view_destroy_transform (view); + + g_object_notify (G_OBJECT (view), "context"); + } +} |