/* GIMP - The GNU Image Manipulation Program * Copyright (C) 1995 Spencer Kimball and Peter Mattis * * gimpfgbgeditor.c * Copyright (C) 2004 Michael Natterer * * 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 . */ #include "config.h" #include #include #include #include "libgimpcolor/gimpcolor.h" #include "libgimpconfig/gimpconfig.h" #include "libgimpwidgets/gimpwidgets.h" #include "widgets-types.h" #include "config/gimpcoreconfig.h" #include "core/gimp.h" #include "core/gimpcontext.h" #include "core/gimpimage.h" #include "core/gimpimage-colormap.h" #include "core/gimpmarshal.h" #include "core/gimppalette.h" #include "gimpdnd.h" #include "gimpfgbgeditor.h" #include "gimpwidgets-utils.h" #define CHANNEL_EPSILON 1e-3 enum { PROP_0, PROP_CONTEXT, PROP_ACTIVE_COLOR }; enum { COLOR_CLICKED, TOOLTIP, LAST_SIGNAL }; static void gimp_fg_bg_editor_dispose (GObject *object); static void gimp_fg_bg_editor_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec); static void gimp_fg_bg_editor_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec); static void gimp_fg_bg_editor_style_set (GtkWidget *widget, GtkStyle *prev_style); static gboolean gimp_fg_bg_editor_expose (GtkWidget *widget, GdkEventExpose *eevent); static gboolean gimp_fg_bg_editor_button_press (GtkWidget *widget, GdkEventButton *bevent); static gboolean gimp_fg_bg_editor_button_release (GtkWidget *widget, GdkEventButton *bevent); static gboolean gimp_fg_bg_editor_drag_motion (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time); static gboolean gimp_fg_bg_editor_query_tooltip (GtkWidget *widget, gint x, gint y, gboolean keyboard_mode, GtkTooltip *tooltip); static void gimp_fg_bg_editor_drag_color (GtkWidget *widget, GimpRGB *color, gpointer data); static void gimp_fg_bg_editor_drop_color (GtkWidget *widget, gint x, gint y, const GimpRGB *color, gpointer data); static void gimp_fg_bg_editor_create_transform (GimpFgBgEditor *editor); static void gimp_fg_bg_editor_destroy_transform (GimpFgBgEditor *editor); static void gimp_fg_bg_editor_image_changed (GimpFgBgEditor *editor, GimpImage *image); static void gimp_fg_bg_editor_draw_color_frame (GimpFgBgEditor *editor, cairo_t *cr, const GimpRGB *color, gint x, gint y, gint width, gint height, gint corner_dx, gint corner_dy); G_DEFINE_TYPE (GimpFgBgEditor, gimp_fg_bg_editor, GTK_TYPE_EVENT_BOX) #define parent_class gimp_fg_bg_editor_parent_class static guint editor_signals[LAST_SIGNAL] = { 0 }; static void gimp_fg_bg_editor_class_init (GimpFgBgEditorClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); editor_signals[COLOR_CLICKED] = g_signal_new ("color-clicked", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GimpFgBgEditorClass, color_clicked), NULL, NULL, gimp_marshal_VOID__ENUM, G_TYPE_NONE, 1, GIMP_TYPE_ACTIVE_COLOR); editor_signals[TOOLTIP] = g_signal_new ("tooltip", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GimpFgBgEditorClass, tooltip), NULL, NULL, gimp_marshal_VOID__INT_OBJECT, G_TYPE_NONE, 2, G_TYPE_INT, GTK_TYPE_TOOLTIP); object_class->dispose = gimp_fg_bg_editor_dispose; object_class->set_property = gimp_fg_bg_editor_set_property; object_class->get_property = gimp_fg_bg_editor_get_property; widget_class->style_set = gimp_fg_bg_editor_style_set; widget_class->expose_event = gimp_fg_bg_editor_expose; widget_class->button_press_event = gimp_fg_bg_editor_button_press; widget_class->button_release_event = gimp_fg_bg_editor_button_release; widget_class->drag_motion = gimp_fg_bg_editor_drag_motion; widget_class->query_tooltip = gimp_fg_bg_editor_query_tooltip; g_object_class_install_property (object_class, PROP_CONTEXT, g_param_spec_object ("context", NULL, NULL, GIMP_TYPE_CONTEXT, GIMP_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_ACTIVE_COLOR, g_param_spec_enum ("active-color", NULL, NULL, GIMP_TYPE_ACTIVE_COLOR, GIMP_ACTIVE_COLOR_FOREGROUND, GIMP_PARAM_READWRITE)); } static void gimp_fg_bg_editor_init (GimpFgBgEditor *editor) { editor->active_color = GIMP_ACTIVE_COLOR_FOREGROUND; gtk_event_box_set_visible_window (GTK_EVENT_BOX (editor), FALSE); gtk_widget_add_events (GTK_WIDGET (editor), GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK); gimp_dnd_color_source_add (GTK_WIDGET (editor), gimp_fg_bg_editor_drag_color, NULL); gimp_dnd_color_dest_add (GTK_WIDGET (editor), gimp_fg_bg_editor_drop_color, NULL); gimp_widget_track_monitor (GTK_WIDGET (editor), G_CALLBACK (gimp_fg_bg_editor_destroy_transform), NULL); } static void gimp_fg_bg_editor_dispose (GObject *object) { GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (object); if (editor->context) gimp_fg_bg_editor_set_context (editor, NULL); g_clear_object (&editor->default_icon); g_clear_object (&editor->swap_icon); G_OBJECT_CLASS (parent_class)->dispose (object); } static void gimp_fg_bg_editor_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (object); switch (property_id) { case PROP_CONTEXT: gimp_fg_bg_editor_set_context (editor, g_value_get_object (value)); break; case PROP_ACTIVE_COLOR: gimp_fg_bg_editor_set_active (editor, g_value_get_enum (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } static void gimp_fg_bg_editor_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (object); switch (property_id) { case PROP_CONTEXT: g_value_set_object (value, editor->context); break; case PROP_ACTIVE_COLOR: g_value_set_enum (value, editor->active_color); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } static void gimp_fg_bg_editor_style_set (GtkWidget *widget, GtkStyle *prev_style) { GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget); GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style); g_clear_object (&editor->default_icon); g_clear_object (&editor->swap_icon); } static gboolean gimp_fg_bg_editor_expose (GtkWidget *widget, GdkEventExpose *eevent) { GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget); cairo_t *cr; GtkAllocation allocation; gint width, height; gint default_w, default_h; gint swap_w, swap_h; 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); width = allocation.width; height = allocation.height; cairo_translate (cr, allocation.x, allocation.y); /* draw the default colors pixbuf */ if (! editor->default_icon) editor->default_icon = gimp_widget_load_icon (widget, GIMP_ICON_COLORS_DEFAULT, 12); default_w = gdk_pixbuf_get_width (editor->default_icon); default_h = gdk_pixbuf_get_height (editor->default_icon); if (default_w < width / 2 && default_h < height / 2) { gdk_cairo_set_source_pixbuf (cr, editor->default_icon, 0, height - default_h); cairo_paint (cr); } else { default_w = default_h = 0; } /* draw the swap colors pixbuf */ if (! editor->swap_icon) editor->swap_icon = gimp_widget_load_icon (widget, GIMP_ICON_COLORS_SWAP, 12); swap_w = gdk_pixbuf_get_width (editor->swap_icon); swap_h = gdk_pixbuf_get_height (editor->swap_icon); if (swap_w < width / 2 && swap_h < height / 2) { gdk_cairo_set_source_pixbuf (cr, editor->swap_icon, width - swap_w, 0); cairo_paint (cr); } else { swap_w = swap_h = 0; } rect_h = height - MAX (default_h, swap_h) - 2; rect_w = width - MAX (default_w, swap_w) - 4; if (rect_h > (height * 3 / 4)) rect_w = MAX (rect_w - (rect_h - ((height * 3 / 4))), width * 2 / 3); editor->rect_width = rect_w; editor->rect_height = rect_h; if (! editor->transform) gimp_fg_bg_editor_create_transform (editor); if (editor->context) { /* draw the background frame */ gimp_context_get_background (editor->context, &color); gimp_fg_bg_editor_draw_color_frame (editor, cr, &color, width - rect_w, height - rect_h, rect_w, rect_h, +1, +1); /* draw the foreground frame */ gimp_context_get_foreground (editor->context, &color); gimp_fg_bg_editor_draw_color_frame (editor, cr, &color, 0, 0, rect_w, rect_h, -1, -1); } cairo_destroy (cr); return TRUE; } static GimpFgBgTarget gimp_fg_bg_editor_target (GimpFgBgEditor *editor, gint x, gint y) { GtkAllocation allocation; gint width; gint height; gint rect_w = editor->rect_width; gint rect_h = editor->rect_height; gtk_widget_get_allocation (GTK_WIDGET (editor), &allocation); width = allocation.width; height = allocation.height; if (x > 0 && x < rect_w && y > 0 && y < rect_h) { return GIMP_FG_BG_TARGET_FOREGROUND; } else if (x > (width - rect_w) && x < width && y > (height - rect_h) && y < height) { return GIMP_FG_BG_TARGET_BACKGROUND; } else if (x > 0 && x < (width - rect_w) && y > rect_h && y < height) { return GIMP_FG_BG_TARGET_DEFAULT; } else if (x > rect_w && x < width && y > 0 && y < (height - rect_h)) { return GIMP_FG_BG_TARGET_SWAP; } return GIMP_FG_BG_TARGET_INVALID; } static gboolean gimp_fg_bg_editor_button_press (GtkWidget *widget, GdkEventButton *bevent) { GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget); if (bevent->button == 1 && bevent->type == GDK_BUTTON_PRESS) { GimpFgBgTarget target = gimp_fg_bg_editor_target (editor, bevent->x, bevent->y); editor->click_target = GIMP_FG_BG_TARGET_INVALID; switch (target) { case GIMP_FG_BG_TARGET_FOREGROUND: if (editor->active_color != GIMP_ACTIVE_COLOR_FOREGROUND) gimp_fg_bg_editor_set_active (editor, GIMP_ACTIVE_COLOR_FOREGROUND); editor->click_target = GIMP_FG_BG_TARGET_FOREGROUND; break; case GIMP_FG_BG_TARGET_BACKGROUND: if (editor->active_color != GIMP_ACTIVE_COLOR_BACKGROUND) gimp_fg_bg_editor_set_active (editor, GIMP_ACTIVE_COLOR_BACKGROUND); editor->click_target = GIMP_FG_BG_TARGET_BACKGROUND; break; case GIMP_FG_BG_TARGET_SWAP: if (editor->context) gimp_context_swap_colors (editor->context); break; case GIMP_FG_BG_TARGET_DEFAULT: if (editor->context) gimp_context_set_default_colors (editor->context); break; default: break; } } return FALSE; } static gboolean gimp_fg_bg_editor_button_release (GtkWidget *widget, GdkEventButton *bevent) { GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget); if (bevent->button == 1) { GimpFgBgTarget target = gimp_fg_bg_editor_target (editor, bevent->x, bevent->y); if (target == editor->click_target) { switch (target) { case GIMP_FG_BG_TARGET_FOREGROUND: g_signal_emit (editor, editor_signals[COLOR_CLICKED], 0, GIMP_ACTIVE_COLOR_FOREGROUND); break; case GIMP_FG_BG_TARGET_BACKGROUND: g_signal_emit (editor, editor_signals[COLOR_CLICKED], 0, GIMP_ACTIVE_COLOR_BACKGROUND); break; default: break; } } editor->click_target = GIMP_FG_BG_TARGET_INVALID; } return FALSE; } static gboolean gimp_fg_bg_editor_drag_motion (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time) { GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget); GimpFgBgTarget target = gimp_fg_bg_editor_target (editor, x, y); if (target == GIMP_FG_BG_TARGET_FOREGROUND || target == GIMP_FG_BG_TARGET_BACKGROUND) { gdk_drag_status (context, GDK_ACTION_COPY, time); return TRUE; } gdk_drag_status (context, 0, time); return FALSE; } static gboolean gimp_fg_bg_editor_query_tooltip (GtkWidget *widget, gint x, gint y, gboolean keyboard_mode, GtkTooltip *tooltip) { if (! keyboard_mode) { GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget); GimpFgBgTarget target = gimp_fg_bg_editor_target (editor, x, y); if (target != GIMP_FG_BG_TARGET_INVALID) { g_signal_emit (widget, editor_signals[TOOLTIP], 0, target, tooltip); return TRUE; } } return FALSE; } /* public functions */ GtkWidget * gimp_fg_bg_editor_new (GimpContext *context) { g_return_val_if_fail (context == NULL || GIMP_IS_CONTEXT (context), NULL); return g_object_new (GIMP_TYPE_FG_BG_EDITOR, "context", context, NULL); } void gimp_fg_bg_editor_set_context (GimpFgBgEditor *editor, GimpContext *context) { g_return_if_fail (GIMP_IS_FG_BG_EDITOR (editor)); g_return_if_fail (context == NULL || GIMP_IS_CONTEXT (context)); if (context != editor->context) { if (editor->context) { g_signal_handlers_disconnect_by_func (editor->context, gtk_widget_queue_draw, editor); g_signal_handlers_disconnect_by_func (editor->context, G_CALLBACK (gimp_fg_bg_editor_image_changed), editor); g_object_unref (editor->context); g_signal_handlers_disconnect_by_func (editor->color_config, gimp_fg_bg_editor_destroy_transform, editor); g_clear_object (&editor->color_config); } editor->context = context; if (context) { g_object_ref (context); g_signal_connect_swapped (context, "foreground-changed", G_CALLBACK (gtk_widget_queue_draw), editor); g_signal_connect_swapped (context, "background-changed", G_CALLBACK (gtk_widget_queue_draw), editor); g_signal_connect_swapped (context, "image-changed", G_CALLBACK (gimp_fg_bg_editor_image_changed), editor); editor->color_config = g_object_ref (context->gimp->config->color_management); g_signal_connect_swapped (editor->color_config, "notify", G_CALLBACK (gimp_fg_bg_editor_destroy_transform), editor); } gimp_fg_bg_editor_destroy_transform (editor); g_object_notify (G_OBJECT (editor), "context"); } } void gimp_fg_bg_editor_set_active (GimpFgBgEditor *editor, GimpActiveColor active) { g_return_if_fail (GIMP_IS_FG_BG_EDITOR (editor)); editor->active_color = active; gtk_widget_queue_draw (GTK_WIDGET (editor)); g_object_notify (G_OBJECT (editor), "active-color"); } /* private functions */ static void gimp_fg_bg_editor_drag_color (GtkWidget *widget, GimpRGB *color, gpointer data) { GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget); if (editor->context) { switch (editor->active_color) { case GIMP_ACTIVE_COLOR_FOREGROUND: gimp_context_get_foreground (editor->context, color); break; case GIMP_ACTIVE_COLOR_BACKGROUND: gimp_context_get_background (editor->context, color); break; } } } static void gimp_fg_bg_editor_drop_color (GtkWidget *widget, gint x, gint y, const GimpRGB *color, gpointer data) { GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget); if (editor->context) { switch (gimp_fg_bg_editor_target (editor, x, y)) { case GIMP_FG_BG_TARGET_FOREGROUND: gimp_context_set_foreground (editor->context, color); break; case GIMP_FG_BG_TARGET_BACKGROUND: gimp_context_set_background (editor->context, color); break; default: break; } } } static void gimp_fg_bg_editor_create_transform (GimpFgBgEditor *editor) { if (editor->color_config) { static GimpColorProfile *profile = NULL; if (G_UNLIKELY (! profile)) profile = gimp_color_profile_new_rgb_srgb (); editor->transform = gimp_widget_get_color_transform (GTK_WIDGET (editor), editor->color_config, profile, babl_format ("R'G'B'A double"), babl_format ("R'G'B'A double")); } } static void gimp_fg_bg_editor_destroy_transform (GimpFgBgEditor *editor) { g_clear_object (&editor->transform); gtk_widget_queue_draw (GTK_WIDGET (editor)); } static void gimp_fg_bg_editor_image_changed (GimpFgBgEditor *editor, GimpImage *image) { gtk_widget_queue_draw (GTK_WIDGET (editor)); if (editor->active_image) { g_signal_handlers_disconnect_by_func (editor->active_image, G_CALLBACK (gtk_widget_queue_draw), editor); if (gimp_image_get_base_type (editor->active_image) == GIMP_INDEXED) { GimpPalette *palette; palette = gimp_image_get_colormap_palette (editor->active_image); g_signal_handlers_disconnect_by_func (palette, G_CALLBACK (gtk_widget_queue_draw), editor); } } editor->active_image = image; if (image) { g_signal_connect_swapped (image, "notify::base-type", G_CALLBACK (gtk_widget_queue_draw), editor); g_signal_connect_swapped (image, "colormap-changed", G_CALLBACK (gtk_widget_queue_draw), editor); if (gimp_image_get_base_type (image) == GIMP_INDEXED) { GimpPalette *palette; palette = gimp_image_get_colormap_palette (editor->active_image); g_signal_connect_swapped (palette, "dirty", G_CALLBACK (gtk_widget_queue_draw), editor); } } } static void gimp_fg_bg_editor_draw_color_frame (GimpFgBgEditor *editor, cairo_t *cr, const GimpRGB *color, gint x, gint y, gint width, gint height, gint corner_dx, gint corner_dy) { GimpPalette *colormap_palette = NULL; GimpImageBaseType base_type = GIMP_RGB; GimpRGB transformed_color; if (editor->active_image) { base_type = gimp_image_get_base_type (editor->active_image); if (base_type == GIMP_INDEXED) { colormap_palette = gimp_image_get_colormap_palette ( editor->active_image); } } if (editor->transform) { gimp_color_transform_process_pixels (editor->transform, babl_format ("R'G'B'A double"), color, babl_format ("R'G'B'A double"), &transformed_color, 1); } else { transformed_color = *color; } cairo_save (cr); gimp_cairo_set_source_rgb (cr, &transformed_color); cairo_rectangle (cr, x, y, width, height); cairo_fill (cr); if (editor->color_config && /* Common out-of-gamut case */ ((color->r < 0.0 || color->r > 1.0 || color->g < 0.0 || color->g > 1.0 || color->b < 0.0 || color->b > 1.0) || /* Indexed images */ (colormap_palette && ! gimp_palette_find_entry (colormap_palette, color, NULL)) || /* Grayscale images */ (base_type == GIMP_GRAY && (ABS (color->r - color->g) > CHANNEL_EPSILON || ABS (color->r - color->b) > CHANNEL_EPSILON || ABS (color->g - color->b) > CHANNEL_EPSILON)))) { gint corner_x = x + 0.5 * (1.0 + corner_dx) * width; gint corner_y = y + 0.5 * (1.0 + corner_dy) * height; gint side = MIN (width, height) * 2 / 3; cairo_move_to (cr, corner_x, corner_y); cairo_line_to (cr, corner_x + side * corner_dx, corner_y); cairo_line_to (cr, corner_x, corner_y + side * corner_dy); cairo_close_path (cr); gimp_cairo_set_source_rgb (cr, &editor->color_config->out_of_gamut_color); cairo_fill (cr); } cairo_set_line_width (cr, 1.0); cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); cairo_rectangle (cr, x + 0.5, y + 0.5, width - 1.0, height - 1.0); cairo_stroke (cr); cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); cairo_rectangle (cr, x + 1.5, y + 1.5, width - 3.0, height - 3.0); cairo_stroke (cr); cairo_restore (cr); }