From e42129241681dde7adae7d20697e7b421682fbb4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 18:23:22 +0200 Subject: Adding upstream version 2.10.22. Signed-off-by: Daniel Baumann --- app/display/gimpdisplayshell-dnd.c | 770 +++++++++++++++++++++++++++++++++++++ 1 file changed, 770 insertions(+) create mode 100644 app/display/gimpdisplayshell-dnd.c (limited to 'app/display/gimpdisplayshell-dnd.c') diff --git a/app/display/gimpdisplayshell-dnd.c b/app/display/gimpdisplayshell-dnd.c new file mode 100644 index 0000000..152ca45 --- /dev/null +++ b/app/display/gimpdisplayshell-dnd.c @@ -0,0 +1,770 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * 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 "libgimpbase/gimpbase.h" +#include "libgimpwidgets/gimpwidgets.h" + +#include "display-types.h" + +#include "core/gimp.h" +#include "core/gimp-edit.h" +#include "core/gimpbuffer.h" +#include "core/gimpdrawable-edit.h" +#include "core/gimpfilloptions.h" +#include "core/gimpimage.h" +#include "core/gimpimage-new.h" +#include "core/gimpimage-undo.h" +#include "core/gimplayer.h" +#include "core/gimplayer-new.h" +#include "core/gimplayermask.h" +#include "core/gimppattern.h" +#include "core/gimpprogress.h" + +#include "file/file-open.h" + +#include "text/gimptext.h" +#include "text/gimptextlayer.h" + +#include "vectors/gimpvectors.h" +#include "vectors/gimpvectors-import.h" + +#include "widgets/gimpdnd.h" + +#include "gimpdisplay.h" +#include "gimpdisplayshell.h" +#include "gimpdisplayshell-dnd.h" +#include "gimpdisplayshell-transform.h" + +#include "gimp-log.h" +#include "gimp-intl.h" + + +/* local function prototypes */ + +static void gimp_display_shell_drop_drawable (GtkWidget *widget, + gint x, + gint y, + GimpViewable *viewable, + gpointer data); +static void gimp_display_shell_drop_vectors (GtkWidget *widget, + gint x, + gint y, + GimpViewable *viewable, + gpointer data); +static void gimp_display_shell_drop_svg (GtkWidget *widget, + gint x, + gint y, + const guchar *svg_data, + gsize svg_data_length, + gpointer data); +static void gimp_display_shell_drop_pattern (GtkWidget *widget, + gint x, + gint y, + GimpViewable *viewable, + gpointer data); +static void gimp_display_shell_drop_color (GtkWidget *widget, + gint x, + gint y, + const GimpRGB *color, + gpointer data); +static void gimp_display_shell_drop_buffer (GtkWidget *widget, + gint x, + gint y, + GimpViewable *viewable, + gpointer data); +static void gimp_display_shell_drop_uri_list (GtkWidget *widget, + gint x, + gint y, + GList *uri_list, + gpointer data); +static void gimp_display_shell_drop_component (GtkWidget *widget, + gint x, + gint y, + GimpImage *image, + GimpChannelType component, + gpointer data); +static void gimp_display_shell_drop_pixbuf (GtkWidget *widget, + gint x, + gint y, + GdkPixbuf *pixbuf, + gpointer data); + + +/* public functions */ + +void +gimp_display_shell_dnd_init (GimpDisplayShell *shell) +{ + g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell)); + + gimp_dnd_viewable_dest_add (shell->canvas, GIMP_TYPE_LAYER, + gimp_display_shell_drop_drawable, + shell); + gimp_dnd_viewable_dest_add (shell->canvas, GIMP_TYPE_LAYER_MASK, + gimp_display_shell_drop_drawable, + shell); + gimp_dnd_viewable_dest_add (shell->canvas, GIMP_TYPE_CHANNEL, + gimp_display_shell_drop_drawable, + shell); + gimp_dnd_viewable_dest_add (shell->canvas, GIMP_TYPE_VECTORS, + gimp_display_shell_drop_vectors, + shell); + gimp_dnd_viewable_dest_add (shell->canvas, GIMP_TYPE_PATTERN, + gimp_display_shell_drop_pattern, + shell); + gimp_dnd_viewable_dest_add (shell->canvas, GIMP_TYPE_BUFFER, + gimp_display_shell_drop_buffer, + shell); + gimp_dnd_color_dest_add (shell->canvas, + gimp_display_shell_drop_color, + shell); + gimp_dnd_component_dest_add (shell->canvas, + gimp_display_shell_drop_component, + shell); + gimp_dnd_uri_list_dest_add (shell->canvas, + gimp_display_shell_drop_uri_list, + shell); + gimp_dnd_svg_dest_add (shell->canvas, + gimp_display_shell_drop_svg, + shell); + gimp_dnd_pixbuf_dest_add (shell->canvas, + gimp_display_shell_drop_pixbuf, + shell); +} + + +/* private functions */ + +/* + * Position the dropped item in the middle of the viewport. + */ +static void +gimp_display_shell_dnd_position_item (GimpDisplayShell *shell, + GimpImage *image, + GimpItem *item) +{ + gint item_width = gimp_item_get_width (item); + gint item_height = gimp_item_get_height (item); + gint off_x, off_y; + + if (item_width >= gimp_image_get_width (image) && + item_height >= gimp_image_get_height (image)) + { + off_x = (gimp_image_get_width (image) - item_width) / 2; + off_y = (gimp_image_get_height (image) - item_height) / 2; + } + else + { + gint x, y; + gint width, height; + + gimp_display_shell_untransform_viewport ( + shell, + ! gimp_display_shell_get_infinite_canvas (shell), + &x, &y, &width, &height); + + off_x = x + (width - item_width) / 2; + off_y = y + (height - item_height) / 2; + } + + gimp_item_translate (item, + off_x - gimp_item_get_offset_x (item), + off_y - gimp_item_get_offset_y (item), + FALSE); +} + +static void +gimp_display_shell_dnd_flush (GimpDisplayShell *shell, + GimpImage *image) +{ + gimp_display_shell_present (shell); + + gimp_image_flush (image); + + gimp_context_set_display (gimp_get_user_context (shell->display->gimp), + shell->display); +} + +static void +gimp_display_shell_drop_drawable (GtkWidget *widget, + gint x, + gint y, + GimpViewable *viewable, + gpointer data) +{ + GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data); + GimpImage *image = gimp_display_get_image (shell->display); + GType new_type; + GimpItem *new_item; + + GIMP_LOG (DND, NULL); + + if (shell->display->gimp->busy) + return; + + if (! image) + { + image = gimp_image_new_from_drawable (shell->display->gimp, + GIMP_DRAWABLE (viewable)); + gimp_create_display (shell->display->gimp, image, GIMP_UNIT_PIXEL, 1.0, + G_OBJECT (gtk_widget_get_screen (widget)), + gimp_widget_get_monitor (widget)); + g_object_unref (image); + + return; + } + + if (GIMP_IS_LAYER (viewable)) + new_type = G_TYPE_FROM_INSTANCE (viewable); + else + new_type = GIMP_TYPE_LAYER; + + new_item = gimp_item_convert (GIMP_ITEM (viewable), image, new_type); + + if (new_item) + { + GimpLayer *new_layer = GIMP_LAYER (new_item); + + gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE, + _("Drop New Layer")); + + gimp_display_shell_dnd_position_item (shell, image, new_item); + + gimp_item_set_visible (new_item, TRUE, FALSE); + gimp_item_set_linked (new_item, FALSE, FALSE); + + gimp_image_add_layer (image, new_layer, + GIMP_IMAGE_ACTIVE_PARENT, -1, TRUE); + + gimp_image_undo_group_end (image); + + gimp_display_shell_dnd_flush (shell, image); + } +} + +static void +gimp_display_shell_drop_vectors (GtkWidget *widget, + gint x, + gint y, + GimpViewable *viewable, + gpointer data) +{ + GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data); + GimpImage *image = gimp_display_get_image (shell->display); + GimpItem *new_item; + + GIMP_LOG (DND, NULL); + + if (shell->display->gimp->busy) + return; + + if (! image) + return; + + new_item = gimp_item_convert (GIMP_ITEM (viewable), + image, G_TYPE_FROM_INSTANCE (viewable)); + + if (new_item) + { + GimpVectors *new_vectors = GIMP_VECTORS (new_item); + + gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE, + _("Drop New Path")); + + gimp_image_add_vectors (image, new_vectors, + GIMP_IMAGE_ACTIVE_PARENT, -1, TRUE); + + gimp_image_undo_group_end (image); + + gimp_display_shell_dnd_flush (shell, image); + } +} + +static void +gimp_display_shell_drop_svg (GtkWidget *widget, + gint x, + gint y, + const guchar *svg_data, + gsize svg_data_len, + gpointer data) +{ + GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data); + GimpImage *image = gimp_display_get_image (shell->display); + GError *error = NULL; + + GIMP_LOG (DND, NULL); + + if (shell->display->gimp->busy) + return; + + if (! image) + return; + + if (! gimp_vectors_import_buffer (image, + (const gchar *) svg_data, svg_data_len, + TRUE, FALSE, + GIMP_IMAGE_ACTIVE_PARENT, -1, + NULL, &error)) + { + gimp_message_literal (shell->display->gimp, G_OBJECT (shell->display), + GIMP_MESSAGE_ERROR, + error->message); + g_clear_error (&error); + } + else + { + gimp_display_shell_dnd_flush (shell, image); + } +} + +static void +gimp_display_shell_dnd_fill (GimpDisplayShell *shell, + GimpFillOptions *options, + const gchar *undo_desc) +{ + GimpImage *image = gimp_display_get_image (shell->display); + GimpDrawable *drawable; + + if (shell->display->gimp->busy) + return; + + if (! image) + return; + + drawable = gimp_image_get_active_drawable (image); + + if (! drawable) + return; + + if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable))) + { + gimp_message_literal (shell->display->gimp, G_OBJECT (shell->display), + GIMP_MESSAGE_ERROR, + _("Cannot modify the pixels of layer groups.")); + return; + } + + if (gimp_item_is_content_locked (GIMP_ITEM (drawable))) + { + gimp_message_literal (shell->display->gimp, G_OBJECT (shell->display), + GIMP_MESSAGE_ERROR, + _("The active layer's pixels are locked.")); + return; + } + + /* FIXME: there should be a virtual method for this that the + * GimpTextLayer can override. + */ + if (gimp_fill_options_get_style (options) == GIMP_FILL_STYLE_SOLID && + gimp_item_is_text_layer (GIMP_ITEM (drawable))) + { + GimpRGB color; + + gimp_context_get_foreground (GIMP_CONTEXT (options), &color); + + gimp_text_layer_set (GIMP_TEXT_LAYER (drawable), NULL, + "color", &color, + NULL); + } + else + { + gimp_drawable_edit_fill (drawable, options, undo_desc); + } + + gimp_display_shell_dnd_flush (shell, image); +} + +static void +gimp_display_shell_drop_pattern (GtkWidget *widget, + gint x, + gint y, + GimpViewable *viewable, + gpointer data) +{ + GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data); + GimpFillOptions *options = gimp_fill_options_new (shell->display->gimp, + NULL, FALSE); + + GIMP_LOG (DND, NULL); + + gimp_fill_options_set_style (options, GIMP_FILL_STYLE_PATTERN); + gimp_context_set_pattern (GIMP_CONTEXT (options), GIMP_PATTERN (viewable)); + + gimp_display_shell_dnd_fill (shell, options, + C_("undo-type", "Drop pattern to layer")); + + g_object_unref (options); +} + +static void +gimp_display_shell_drop_color (GtkWidget *widget, + gint x, + gint y, + const GimpRGB *color, + gpointer data) +{ + GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data); + GimpFillOptions *options = gimp_fill_options_new (shell->display->gimp, + NULL, FALSE); + + GIMP_LOG (DND, NULL); + + gimp_fill_options_set_style (options, GIMP_FILL_STYLE_SOLID); + gimp_context_set_foreground (GIMP_CONTEXT (options), color); + + gimp_display_shell_dnd_fill (shell, options, + C_("undo-type", "Drop color to layer")); + + g_object_unref (options); +} + +static void +gimp_display_shell_drop_buffer (GtkWidget *widget, + gint drop_x, + gint drop_y, + GimpViewable *viewable, + gpointer data) +{ + GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data); + GimpImage *image = gimp_display_get_image (shell->display); + GimpDrawable *drawable; + GimpBuffer *buffer; + GimpPasteType paste_type; + gint x, y, width, height; + + GIMP_LOG (DND, NULL); + + if (shell->display->gimp->busy) + return; + + if (! image) + { + image = gimp_image_new_from_buffer (shell->display->gimp, + GIMP_BUFFER (viewable)); + gimp_create_display (image->gimp, image, GIMP_UNIT_PIXEL, 1.0, + G_OBJECT (gtk_widget_get_screen (widget)), + gimp_widget_get_monitor (widget)); + g_object_unref (image); + + return; + } + + paste_type = GIMP_PASTE_TYPE_FLOATING; + + drawable = gimp_image_get_active_drawable (image); + + if (drawable) + { + if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable))) + { + gimp_message_literal (shell->display->gimp, G_OBJECT (shell->display), + GIMP_MESSAGE_INFO, + _("Pasted as new layer because the " + "target is a layer group.")); + + paste_type = GIMP_PASTE_TYPE_NEW_LAYER; + } + else if (gimp_item_is_content_locked (GIMP_ITEM (drawable))) + { + gimp_message_literal (shell->display->gimp, G_OBJECT (shell->display), + GIMP_MESSAGE_ERROR, + _("Pasted as new layer because the " + "target's pixels are locked.")); + + paste_type = GIMP_PASTE_TYPE_NEW_LAYER; + } + } + + buffer = GIMP_BUFFER (viewable); + + gimp_display_shell_untransform_viewport ( + shell, + ! gimp_display_shell_get_infinite_canvas (shell), + &x, &y, &width, &height); + + /* FIXME: popup a menu for selecting "Paste Into" */ + + gimp_edit_paste (image, drawable, GIMP_OBJECT (buffer), + paste_type, x, y, width, height); + + gimp_display_shell_dnd_flush (shell, image); +} + +static void +gimp_display_shell_drop_uri_list (GtkWidget *widget, + gint x, + gint y, + GList *uri_list, + gpointer data) +{ + GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data); + GimpImage *image; + GimpContext *context; + GList *list; + gboolean open_as_layers; + + /* If the app is already being torn down, shell->display might be + * NULL here. Play it safe. + */ + if (! shell->display) + return; + + image = gimp_display_get_image (shell->display); + context = gimp_get_user_context (shell->display->gimp); + + GIMP_LOG (DND, NULL); + + open_as_layers = (image != NULL); + + if (image) + g_object_ref (image); + + for (list = uri_list; list; list = g_list_next (list)) + { + GFile *file = g_file_new_for_uri (list->data); + GimpPDBStatusType status; + GError *error = NULL; + gboolean warn = FALSE; + + if (! shell->display) + { + /* It seems as if GIMP is being torn down for quitting. Bail out. */ + g_object_unref (file); + g_clear_object (&image); + return; + } + + if (open_as_layers) + { + GList *new_layers; + + new_layers = file_open_layers (shell->display->gimp, context, + GIMP_PROGRESS (shell->display), + image, FALSE, + file, GIMP_RUN_INTERACTIVE, NULL, + &status, &error); + + if (new_layers) + { + gint x = 0; + gint y = 0; + gint width = gimp_image_get_width (image); + gint height = gimp_image_get_height (image); + + if (gimp_display_get_image (shell->display)) + { + gimp_display_shell_untransform_viewport ( + shell, + ! gimp_display_shell_get_infinite_canvas (shell), + &x, &y, &width, &height); + } + + gimp_image_add_layers (image, new_layers, + GIMP_IMAGE_ACTIVE_PARENT, -1, + x, y, width, height, + _("Drop layers")); + + g_list_free (new_layers); + } + else if (status != GIMP_PDB_CANCEL) + { + warn = TRUE; + } + } + else if (gimp_display_get_image (shell->display)) + { + /* open any subsequent images in a new display */ + GimpImage *new_image; + + new_image = file_open_with_display (shell->display->gimp, context, + NULL, + file, FALSE, + G_OBJECT (gtk_widget_get_screen (widget)), + gimp_widget_get_monitor (widget), + &status, &error); + + if (! new_image && status != GIMP_PDB_CANCEL) + warn = TRUE; + } + else + { + /* open the first image in the empty display */ + image = file_open_with_display (shell->display->gimp, context, + GIMP_PROGRESS (shell->display), + file, FALSE, + G_OBJECT (gtk_widget_get_screen (widget)), + gimp_widget_get_monitor (widget), + &status, &error); + + if (image) + { + g_object_ref (image); + } + else if (status != GIMP_PDB_CANCEL) + { + warn = TRUE; + } + } + + /* Something above might have run a few rounds of the main loop. Check + * that shell->display is still there, otherwise ignore this as the app + * is being torn down for quitting. + */ + if (warn && shell->display) + { + gimp_message (shell->display->gimp, G_OBJECT (shell->display), + GIMP_MESSAGE_ERROR, + _("Opening '%s' failed:\n\n%s"), + gimp_file_get_utf8_name (file), error->message); + g_clear_error (&error); + } + + g_object_unref (file); + } + + if (image) + gimp_display_shell_dnd_flush (shell, image); + + g_clear_object (&image); +} + +static void +gimp_display_shell_drop_component (GtkWidget *widget, + gint x, + gint y, + GimpImage *image, + GimpChannelType component, + gpointer data) +{ + GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data); + GimpImage *dest_image = gimp_display_get_image (shell->display); + GimpChannel *channel; + GimpItem *new_item; + const gchar *desc; + + GIMP_LOG (DND, NULL); + + if (shell->display->gimp->busy) + return; + + if (! dest_image) + { + dest_image = gimp_image_new_from_component (image->gimp, + image, component); + gimp_create_display (dest_image->gimp, dest_image, GIMP_UNIT_PIXEL, 1.0, + G_OBJECT (gtk_widget_get_screen (widget)), + gimp_widget_get_monitor (widget)); + g_object_unref (dest_image); + + return; + } + + channel = gimp_channel_new_from_component (image, component, NULL, NULL); + + new_item = gimp_item_convert (GIMP_ITEM (channel), + dest_image, GIMP_TYPE_LAYER); + g_object_unref (channel); + + if (new_item) + { + GimpLayer *new_layer = GIMP_LAYER (new_item); + + gimp_enum_get_value (GIMP_TYPE_CHANNEL_TYPE, component, + NULL, NULL, &desc, NULL); + gimp_object_take_name (GIMP_OBJECT (new_layer), + g_strdup_printf (_("%s Channel Copy"), desc)); + + gimp_image_undo_group_start (dest_image, GIMP_UNDO_GROUP_EDIT_PASTE, + _("Drop New Layer")); + + gimp_display_shell_dnd_position_item (shell, image, new_item); + + gimp_image_add_layer (dest_image, new_layer, + GIMP_IMAGE_ACTIVE_PARENT, -1, TRUE); + + gimp_image_undo_group_end (dest_image); + + gimp_display_shell_dnd_flush (shell, dest_image); + } +} + +static void +gimp_display_shell_drop_pixbuf (GtkWidget *widget, + gint x, + gint y, + GdkPixbuf *pixbuf, + gpointer data) +{ + GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data); + GimpImage *image = gimp_display_get_image (shell->display); + GimpLayer *new_layer; + gboolean has_alpha = FALSE; + + GIMP_LOG (DND, NULL); + + if (shell->display->gimp->busy) + return; + + if (! image) + { + image = gimp_image_new_from_pixbuf (shell->display->gimp, pixbuf, + _("Dropped Buffer")); + gimp_create_display (image->gimp, image, GIMP_UNIT_PIXEL, 1.0, + G_OBJECT (gtk_widget_get_screen (widget)), + gimp_widget_get_monitor (widget)); + g_object_unref (image); + + return; + } + + if (gdk_pixbuf_get_n_channels (pixbuf) == 2 || + gdk_pixbuf_get_n_channels (pixbuf) == 4) + { + has_alpha = TRUE; + } + + new_layer = + gimp_layer_new_from_pixbuf (pixbuf, image, + gimp_image_get_layer_format (image, has_alpha), + _("Dropped Buffer"), + GIMP_OPACITY_OPAQUE, + gimp_image_get_default_new_layer_mode (image)); + + if (new_layer) + { + GimpItem *new_item = GIMP_ITEM (new_layer); + + gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE, + _("Drop New Layer")); + + gimp_display_shell_dnd_position_item (shell, image, new_item); + + gimp_image_add_layer (image, new_layer, + GIMP_IMAGE_ACTIVE_PARENT, -1, TRUE); + + gimp_image_undo_group_end (image); + + gimp_display_shell_dnd_flush (shell, image); + } +} -- cgit v1.2.3