From 3c57dd931145d43f2b0aef96c4d178135956bf91 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 05:13:10 +0200 Subject: Adding upstream version 2.10.36. Signed-off-by: Daniel Baumann --- app/display/gimpdisplayshell-items.c | 284 +++++++++++++++++++++++++++++++++++ 1 file changed, 284 insertions(+) create mode 100644 app/display/gimpdisplayshell-items.c (limited to 'app/display/gimpdisplayshell-items.c') diff --git a/app/display/gimpdisplayshell-items.c b/app/display/gimpdisplayshell-items.c new file mode 100644 index 0000000..caa381a --- /dev/null +++ b/app/display/gimpdisplayshell-items.c @@ -0,0 +1,284 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * gimpdisplayshell-items.c + * Copyright (C) 2010 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 "display-types.h" + +#include "gimpcanvascanvasboundary.h" +#include "gimpcanvascursor.h" +#include "gimpcanvasgrid.h" +#include "gimpcanvaslayerboundary.h" +#include "gimpcanvaspassepartout.h" +#include "gimpcanvasproxygroup.h" +#include "gimpdisplayshell.h" +#include "gimpdisplayshell-expose.h" +#include "gimpdisplayshell-items.h" +#include "gimpdisplayshell-transform.h" + + +/* local function prototypes */ + +static void gimp_display_shell_item_update (GimpCanvasItem *item, + cairo_region_t *region, + GimpDisplayShell *shell); +static void gimp_display_shell_unrotated_item_update (GimpCanvasItem *item, + cairo_region_t *region, + GimpDisplayShell *shell); + + +/* public functions */ + +void +gimp_display_shell_items_init (GimpDisplayShell *shell) +{ + g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell)); + + shell->canvas_item = gimp_canvas_group_new (shell); + + shell->passe_partout = gimp_canvas_passe_partout_new (shell, 0, 0, 0, 0); + gimp_canvas_item_set_visible (shell->passe_partout, FALSE); + gimp_display_shell_add_item (shell, shell->passe_partout); + g_object_unref (shell->passe_partout); + + shell->preview_items = gimp_canvas_group_new (shell); + gimp_display_shell_add_item (shell, shell->preview_items); + g_object_unref (shell->preview_items); + + shell->vectors = gimp_canvas_proxy_group_new (shell); + gimp_display_shell_add_item (shell, shell->vectors); + g_object_unref (shell->vectors); + + shell->grid = gimp_canvas_grid_new (shell, NULL); + gimp_canvas_item_set_visible (shell->grid, FALSE); + g_object_set (shell->grid, "grid-style", TRUE, NULL); + gimp_display_shell_add_item (shell, shell->grid); + g_object_unref (shell->grid); + + shell->guides = gimp_canvas_proxy_group_new (shell); + gimp_display_shell_add_item (shell, shell->guides); + g_object_unref (shell->guides); + + shell->sample_points = gimp_canvas_proxy_group_new (shell); + gimp_display_shell_add_item (shell, shell->sample_points); + g_object_unref (shell->sample_points); + + shell->canvas_boundary = gimp_canvas_canvas_boundary_new (shell); + gimp_canvas_item_set_visible (shell->canvas_boundary, FALSE); + gimp_display_shell_add_item (shell, shell->canvas_boundary); + g_object_unref (shell->canvas_boundary); + + shell->layer_boundary = gimp_canvas_layer_boundary_new (shell); + gimp_canvas_item_set_visible (shell->layer_boundary, FALSE); + gimp_display_shell_add_item (shell, shell->layer_boundary); + g_object_unref (shell->layer_boundary); + + shell->tool_items = gimp_canvas_group_new (shell); + gimp_display_shell_add_item (shell, shell->tool_items); + g_object_unref (shell->tool_items); + + g_signal_connect (shell->canvas_item, "update", + G_CALLBACK (gimp_display_shell_item_update), + shell); + + shell->unrotated_item = gimp_canvas_group_new (shell); + + shell->cursor = gimp_canvas_cursor_new (shell); + gimp_canvas_item_set_visible (shell->cursor, FALSE); + gimp_display_shell_add_unrotated_item (shell, shell->cursor); + g_object_unref (shell->cursor); + + g_signal_connect (shell->unrotated_item, "update", + G_CALLBACK (gimp_display_shell_unrotated_item_update), + shell); +} + +void +gimp_display_shell_items_free (GimpDisplayShell *shell) +{ + g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell)); + + if (shell->canvas_item) + { + g_signal_handlers_disconnect_by_func (shell->canvas_item, + gimp_display_shell_item_update, + shell); + + g_clear_object (&shell->canvas_item); + + shell->passe_partout = NULL; + shell->preview_items = NULL; + shell->vectors = NULL; + shell->grid = NULL; + shell->guides = NULL; + shell->sample_points = NULL; + shell->canvas_boundary = NULL; + shell->layer_boundary = NULL; + shell->tool_items = NULL; + } + + if (shell->unrotated_item) + { + g_signal_handlers_disconnect_by_func (shell->unrotated_item, + gimp_display_shell_unrotated_item_update, + shell); + + g_clear_object (&shell->unrotated_item); + + shell->cursor = NULL; + } +} + +void +gimp_display_shell_add_item (GimpDisplayShell *shell, + GimpCanvasItem *item) +{ + g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell)); + g_return_if_fail (GIMP_IS_CANVAS_ITEM (item)); + + gimp_canvas_group_add_item (GIMP_CANVAS_GROUP (shell->canvas_item), item); +} + +void +gimp_display_shell_remove_item (GimpDisplayShell *shell, + GimpCanvasItem *item) +{ + g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell)); + g_return_if_fail (GIMP_IS_CANVAS_ITEM (item)); + + gimp_canvas_group_remove_item (GIMP_CANVAS_GROUP (shell->canvas_item), item); +} + +void +gimp_display_shell_add_preview_item (GimpDisplayShell *shell, + GimpCanvasItem *item) +{ + g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell)); + g_return_if_fail (GIMP_IS_CANVAS_ITEM (item)); + + gimp_canvas_group_add_item (GIMP_CANVAS_GROUP (shell->preview_items), item); +} + +void +gimp_display_shell_remove_preview_item (GimpDisplayShell *shell, + GimpCanvasItem *item) +{ + g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell)); + g_return_if_fail (GIMP_IS_CANVAS_ITEM (item)); + + gimp_canvas_group_remove_item (GIMP_CANVAS_GROUP (shell->preview_items), item); +} + +void +gimp_display_shell_add_unrotated_item (GimpDisplayShell *shell, + GimpCanvasItem *item) +{ + g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell)); + g_return_if_fail (GIMP_IS_CANVAS_ITEM (item)); + + gimp_canvas_group_add_item (GIMP_CANVAS_GROUP (shell->unrotated_item), item); +} + +void +gimp_display_shell_remove_unrotated_item (GimpDisplayShell *shell, + GimpCanvasItem *item) +{ + g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell)); + g_return_if_fail (GIMP_IS_CANVAS_ITEM (item)); + + gimp_canvas_group_remove_item (GIMP_CANVAS_GROUP (shell->unrotated_item), item); +} + +void +gimp_display_shell_add_tool_item (GimpDisplayShell *shell, + GimpCanvasItem *item) +{ + g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell)); + g_return_if_fail (GIMP_IS_CANVAS_ITEM (item)); + + gimp_canvas_group_add_item (GIMP_CANVAS_GROUP (shell->tool_items), item); +} + +void +gimp_display_shell_remove_tool_item (GimpDisplayShell *shell, + GimpCanvasItem *item) +{ + g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell)); + g_return_if_fail (GIMP_IS_CANVAS_ITEM (item)); + + gimp_canvas_group_remove_item (GIMP_CANVAS_GROUP (shell->tool_items), item); +} + + +/* private functions */ + +static void +gimp_display_shell_item_update (GimpCanvasItem *item, + cairo_region_t *region, + GimpDisplayShell *shell) +{ + if (shell->rotate_transform) + { + gint n_rects; + gint i; + + n_rects = cairo_region_num_rectangles (region); + + for (i = 0; i < n_rects; i++) + { + cairo_rectangle_int_t rect; + gdouble tx1, ty1; + gdouble tx2, ty2; + gint x1, y1, x2, y2; + + cairo_region_get_rectangle (region, i, &rect); + + gimp_display_shell_rotate_bounds (shell, + rect.x, rect.y, + rect.x + rect.width, + rect.y + rect.height, + &tx1, &ty1, &tx2, &ty2); + + x1 = floor (tx1 - 0.5); + y1 = floor (ty1 - 0.5); + x2 = ceil (tx2 + 0.5); + y2 = ceil (ty2 + 0.5); + + gimp_display_shell_expose_area (shell, x1, y1, x2 - x1, y2 - y1); + } + } + else + { + gimp_display_shell_expose_region (shell, region); + } +} + +static void +gimp_display_shell_unrotated_item_update (GimpCanvasItem *item, + cairo_region_t *region, + GimpDisplayShell *shell) +{ + gimp_display_shell_expose_region (shell, region); +} -- cgit v1.2.3