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Diffstat (limited to 'app/tools/gimpmovetool.c')
| -rw-r--r-- | app/tools/gimpmovetool.c | 665 |
1 files changed, 665 insertions, 0 deletions
diff --git a/app/tools/gimpmovetool.c b/app/tools/gimpmovetool.c new file mode 100644 index 0000000..8d1d617 --- /dev/null +++ b/app/tools/gimpmovetool.c @@ -0,0 +1,665 @@ +/* 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 <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <string.h> + +#include <gegl.h> +#include <gtk/gtk.h> + +#include "libgimpmath/gimpmath.h" +#include "libgimpwidgets/gimpwidgets.h" + +#include "tools-types.h" + +#include "config/gimpdisplayconfig.h" +#include "config/gimpguiconfig.h" + +#include "core/gimp.h" +#include "core/gimp-cairo.h" +#include "core/gimp-utils.h" +#include "core/gimpguide.h" +#include "core/gimpimage.h" +#include "core/gimpimage-pick-item.h" +#include "core/gimplayer.h" +#include "core/gimpimage-undo.h" +#include "core/gimplayermask.h" +#include "core/gimplayer-floating-selection.h" +#include "core/gimpundostack.h" + +#include "widgets/gimphelp-ids.h" +#include "widgets/gimpwidgets-utils.h" + +#include "display/gimpcanvasitem.h" +#include "display/gimpdisplay.h" +#include "display/gimpdisplayshell.h" +#include "display/gimpdisplayshell-appearance.h" +#include "display/gimpdisplayshell-selection.h" +#include "display/gimpdisplayshell-transform.h" + +#include "gimpeditselectiontool.h" +#include "gimpguidetool.h" +#include "gimpmoveoptions.h" +#include "gimpmovetool.h" +#include "gimptoolcontrol.h" +#include "gimptools-utils.h" + +#include "gimp-intl.h" + + +/* local function prototypes */ + +static void gimp_move_tool_finalize (GObject *object); + +static void gimp_move_tool_button_press (GimpTool *tool, + const GimpCoords *coords, + guint32 time, + GdkModifierType state, + GimpButtonPressType press_type, + GimpDisplay *display); +static void gimp_move_tool_button_release (GimpTool *tool, + const GimpCoords *coords, + guint32 time, + GdkModifierType state, + GimpButtonReleaseType release_type, + GimpDisplay *display); +static gboolean gimp_move_tool_key_press (GimpTool *tool, + GdkEventKey *kevent, + GimpDisplay *display); +static void gimp_move_tool_modifier_key (GimpTool *tool, + GdkModifierType key, + gboolean press, + GdkModifierType state, + GimpDisplay *display); +static void gimp_move_tool_oper_update (GimpTool *tool, + const GimpCoords *coords, + GdkModifierType state, + gboolean proximity, + GimpDisplay *display); +static void gimp_move_tool_cursor_update (GimpTool *tool, + const GimpCoords *coords, + GdkModifierType state, + GimpDisplay *display); + +static void gimp_move_tool_draw (GimpDrawTool *draw_tool); + + +G_DEFINE_TYPE (GimpMoveTool, gimp_move_tool, GIMP_TYPE_DRAW_TOOL) + +#define parent_class gimp_move_tool_parent_class + + +void +gimp_move_tool_register (GimpToolRegisterCallback callback, + gpointer data) +{ + (* callback) (GIMP_TYPE_MOVE_TOOL, + GIMP_TYPE_MOVE_OPTIONS, + gimp_move_options_gui, + 0, + "gimp-move-tool", + C_("tool", "Move"), + _("Move Tool: Move layers, selections, and other objects"), + N_("_Move"), "M", + NULL, GIMP_HELP_TOOL_MOVE, + GIMP_ICON_TOOL_MOVE, + data); +} + +static void +gimp_move_tool_class_init (GimpMoveToolClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass); + GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass); + + object_class->finalize = gimp_move_tool_finalize; + + tool_class->button_press = gimp_move_tool_button_press; + tool_class->button_release = gimp_move_tool_button_release; + tool_class->key_press = gimp_move_tool_key_press; + tool_class->modifier_key = gimp_move_tool_modifier_key; + tool_class->oper_update = gimp_move_tool_oper_update; + tool_class->cursor_update = gimp_move_tool_cursor_update; + + draw_tool_class->draw = gimp_move_tool_draw; +} + +static void +gimp_move_tool_init (GimpMoveTool *move_tool) +{ + GimpTool *tool = GIMP_TOOL (move_tool); + + gimp_tool_control_set_snap_to (tool->control, FALSE); + gimp_tool_control_set_handle_empty_image (tool->control, TRUE); + gimp_tool_control_set_tool_cursor (tool->control, + GIMP_TOOL_CURSOR_MOVE); + + move_tool->floating_layer = NULL; + move_tool->guides = NULL; + + move_tool->saved_type = GIMP_TRANSFORM_TYPE_LAYER; + + move_tool->old_active_layer = NULL; + move_tool->old_active_vectors = NULL; +} + +static void +gimp_move_tool_finalize (GObject *object) +{ + GimpMoveTool *move = GIMP_MOVE_TOOL (object); + + g_clear_pointer (&move->guides, g_list_free); + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static void +gimp_move_tool_button_press (GimpTool *tool, + const GimpCoords *coords, + guint32 time, + GdkModifierType state, + GimpButtonPressType press_type, + GimpDisplay *display) +{ + GimpMoveTool *move = GIMP_MOVE_TOOL (tool); + GimpMoveOptions *options = GIMP_MOVE_TOOL_GET_OPTIONS (tool); + GimpDisplayShell *shell = gimp_display_get_shell (display); + GimpImage *image = gimp_display_get_image (display); + GimpItem *active_item = NULL; + GimpTranslateMode translate_mode = GIMP_TRANSLATE_MODE_MASK; + const gchar *null_message = NULL; + const gchar *locked_message = NULL; + + tool->display = display; + + move->floating_layer = NULL; + + g_clear_pointer (&move->guides, g_list_free); + + if (! options->move_current) + { + const gint snap_distance = display->config->snap_distance; + + if (options->move_type == GIMP_TRANSFORM_TYPE_PATH) + { + GimpVectors *vectors; + + vectors = gimp_image_pick_vectors (image, + coords->x, coords->y, + FUNSCALEX (shell, snap_distance), + FUNSCALEY (shell, snap_distance)); + if (vectors) + { + move->old_active_vectors = + gimp_image_get_active_vectors (image); + + gimp_image_set_active_vectors (image, vectors); + } + else + { + /* no path picked */ + return; + } + } + else if (options->move_type == GIMP_TRANSFORM_TYPE_LAYER) + { + GList *guides; + GimpLayer *layer; + + if (gimp_display_shell_get_show_guides (shell) && + (guides = gimp_image_pick_guides (image, + coords->x, coords->y, + FUNSCALEX (shell, snap_distance), + FUNSCALEY (shell, snap_distance)))) + { + move->guides = guides; + + gimp_guide_tool_start_edit_many (tool, display, guides); + + return; + } + else if ((layer = gimp_image_pick_layer (image, + coords->x, + coords->y, + NULL))) + { + if (gimp_image_get_floating_selection (image) && + ! gimp_layer_is_floating_sel (layer)) + { + /* If there is a floating selection, and this aint it, + * use the move tool to anchor it. + */ + move->floating_layer = + gimp_image_get_floating_selection (image); + + gimp_tool_control_activate (tool->control); + + return; + } + else + { + move->old_active_layer = gimp_image_get_active_layer (image); + + gimp_image_set_active_layer (image, layer); + } + } + else + { + /* no guide and no layer picked */ + + return; + } + } + } + + switch (options->move_type) + { + case GIMP_TRANSFORM_TYPE_PATH: + { + active_item = GIMP_ITEM (gimp_image_get_active_vectors (image)); + + translate_mode = GIMP_TRANSLATE_MODE_VECTORS; + + if (! active_item) + { + null_message = _("There is no path to move."); + } + else if (gimp_item_is_position_locked (active_item)) + { + locked_message = _("The active path's position is locked."); + } + } + break; + + case GIMP_TRANSFORM_TYPE_SELECTION: + { + active_item = GIMP_ITEM (gimp_image_get_mask (image)); + + if (gimp_channel_is_empty (GIMP_CHANNEL (active_item))) + active_item = NULL; + + translate_mode = GIMP_TRANSLATE_MODE_MASK; + + if (! active_item) + { + /* cannot happen, don't translate this message */ + null_message = "There is no selection to move."; + } + else if (gimp_item_is_position_locked (active_item)) + { + locked_message = "The selection's position is locked."; + } + } + break; + + case GIMP_TRANSFORM_TYPE_LAYER: + { + active_item = GIMP_ITEM (gimp_image_get_active_drawable (image)); + + if (! active_item) + { + null_message = _("There is no layer to move."); + } + else if (GIMP_IS_LAYER_MASK (active_item)) + { + translate_mode = GIMP_TRANSLATE_MODE_LAYER_MASK; + + if (gimp_item_is_position_locked (active_item)) + locked_message = _("The active layer's position is locked."); + else if (gimp_item_is_content_locked (active_item)) + locked_message = _("The active layer's pixels are locked."); + } + else if (GIMP_IS_CHANNEL (active_item)) + { + translate_mode = GIMP_TRANSLATE_MODE_CHANNEL; + + if (gimp_item_is_position_locked (active_item)) + locked_message = _("The active channel's position is locked."); + else if (gimp_item_is_content_locked (active_item)) + locked_message = _("The active channel's pixels are locked."); + } + else + { + translate_mode = GIMP_TRANSLATE_MODE_LAYER; + + if (gimp_item_is_position_locked (active_item)) + locked_message = _("The active layer's position is locked."); + } + } + break; + + case GIMP_TRANSFORM_TYPE_IMAGE: + g_return_if_reached (); + } + + if (! active_item) + { + gimp_tool_message_literal (tool, display, null_message); + gimp_widget_blink (options->type_box); + gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display); + return; + } + else if (locked_message) + { + gimp_tool_message_literal (tool, display, locked_message); + gimp_tools_blink_lock_box (display->gimp, active_item); + gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display); + return; + } + + gimp_tool_control_activate (tool->control); + + gimp_edit_selection_tool_start (tool, display, coords, + translate_mode, + TRUE); +} + +static void +gimp_move_tool_button_release (GimpTool *tool, + const GimpCoords *coords, + guint32 time, + GdkModifierType state, + GimpButtonReleaseType release_type, + GimpDisplay *display) +{ + GimpMoveTool *move = GIMP_MOVE_TOOL (tool); + GimpGuiConfig *config = GIMP_GUI_CONFIG (display->gimp->config); + GimpImage *image = gimp_display_get_image (display); + gboolean flush = FALSE; + + gimp_tool_control_halt (tool->control); + + if (! config->move_tool_changes_active || + (release_type == GIMP_BUTTON_RELEASE_CANCEL)) + { + if (move->old_active_layer) + { + gimp_image_set_active_layer (image, move->old_active_layer); + move->old_active_layer = NULL; + + flush = TRUE; + } + + if (move->old_active_vectors) + { + gimp_image_set_active_vectors (image, move->old_active_vectors); + move->old_active_vectors = NULL; + + flush = TRUE; + } + } + + if (release_type != GIMP_BUTTON_RELEASE_CANCEL) + { + if (move->floating_layer) + { + floating_sel_anchor (move->floating_layer); + + flush = TRUE; + } + } + + if (flush) + gimp_image_flush (image); +} + +static gboolean +gimp_move_tool_key_press (GimpTool *tool, + GdkEventKey *kevent, + GimpDisplay *display) +{ + GimpMoveOptions *options = GIMP_MOVE_TOOL_GET_OPTIONS (tool); + + return gimp_edit_selection_tool_translate (tool, kevent, + options->move_type, + display, + options->type_box); +} + +static void +gimp_move_tool_modifier_key (GimpTool *tool, + GdkModifierType key, + gboolean press, + GdkModifierType state, + GimpDisplay *display) +{ + GimpMoveTool *move = GIMP_MOVE_TOOL (tool); + GimpMoveOptions *options = GIMP_MOVE_TOOL_GET_OPTIONS (tool); + + if (key == gimp_get_extend_selection_mask ()) + { + g_object_set (options, "move-current", ! options->move_current, NULL); + } + else if (key == GDK_MOD1_MASK || + key == gimp_get_toggle_behavior_mask ()) + { + GimpTransformType button_type; + + button_type = options->move_type; + + if (press) + { + if (key == (state & (GDK_MOD1_MASK | + gimp_get_toggle_behavior_mask ()))) + { + /* first modifier pressed */ + + move->saved_type = options->move_type; + } + } + else + { + if (! (state & (GDK_MOD1_MASK | + gimp_get_toggle_behavior_mask ()))) + { + /* last modifier released */ + + button_type = move->saved_type; + } + } + + if (state & GDK_MOD1_MASK) + { + button_type = GIMP_TRANSFORM_TYPE_SELECTION; + } + else if (state & gimp_get_toggle_behavior_mask ()) + { + button_type = GIMP_TRANSFORM_TYPE_PATH; + } + + if (button_type != options->move_type) + { + g_object_set (options, "move-type", button_type, NULL); + } + } +} + +static void +gimp_move_tool_oper_update (GimpTool *tool, + const GimpCoords *coords, + GdkModifierType state, + gboolean proximity, + GimpDisplay *display) +{ + GimpMoveTool *move = GIMP_MOVE_TOOL (tool); + GimpMoveOptions *options = GIMP_MOVE_TOOL_GET_OPTIONS (tool); + GimpDisplayShell *shell = gimp_display_get_shell (display); + GimpImage *image = gimp_display_get_image (display); + GList *guides = NULL; + + if (options->move_type == GIMP_TRANSFORM_TYPE_LAYER && + ! options->move_current && + gimp_display_shell_get_show_guides (shell) && + proximity) + { + gint snap_distance = display->config->snap_distance; + + guides = gimp_image_pick_guides (image, coords->x, coords->y, + FUNSCALEX (shell, snap_distance), + FUNSCALEY (shell, snap_distance)); + } + + if (gimp_g_list_compare (guides, move->guides)) + { + GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool); + + gimp_draw_tool_pause (draw_tool); + + if (gimp_draw_tool_is_active (draw_tool) && + draw_tool->display != display) + gimp_draw_tool_stop (draw_tool); + + g_clear_pointer (&move->guides, g_list_free); + + move->guides = guides; + + if (! gimp_draw_tool_is_active (draw_tool)) + gimp_draw_tool_start (draw_tool, display); + + gimp_draw_tool_resume (draw_tool); + } + else + { + g_list_free (guides); + } +} + +static void +gimp_move_tool_cursor_update (GimpTool *tool, + const GimpCoords *coords, + GdkModifierType state, + GimpDisplay *display) +{ + GimpMoveOptions *options = GIMP_MOVE_TOOL_GET_OPTIONS (tool); + GimpDisplayShell *shell = gimp_display_get_shell (display); + GimpImage *image = gimp_display_get_image (display); + GimpCursorType cursor = GIMP_CURSOR_MOUSE; + GimpToolCursorType tool_cursor = GIMP_TOOL_CURSOR_MOVE; + GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_NONE; + gint snap_distance = display->config->snap_distance; + + if (options->move_type == GIMP_TRANSFORM_TYPE_PATH) + { + tool_cursor = GIMP_TOOL_CURSOR_PATHS; + modifier = GIMP_CURSOR_MODIFIER_MOVE; + + if (options->move_current) + { + GimpItem *item = GIMP_ITEM (gimp_image_get_active_vectors (image)); + + if (! item || gimp_item_is_position_locked (item)) + modifier = GIMP_CURSOR_MODIFIER_BAD; + } + else + { + if (gimp_image_pick_vectors (image, + coords->x, coords->y, + FUNSCALEX (shell, snap_distance), + FUNSCALEY (shell, snap_distance))) + { + tool_cursor = GIMP_TOOL_CURSOR_HAND; + } + else + { + modifier = GIMP_CURSOR_MODIFIER_BAD; + } + } + } + else if (options->move_type == GIMP_TRANSFORM_TYPE_SELECTION) + { + tool_cursor = GIMP_TOOL_CURSOR_RECT_SELECT; + modifier = GIMP_CURSOR_MODIFIER_MOVE; + + if (gimp_channel_is_empty (gimp_image_get_mask (image))) + modifier = GIMP_CURSOR_MODIFIER_BAD; + } + else if (options->move_current) + { + GimpItem *item = GIMP_ITEM (gimp_image_get_active_drawable (image)); + + if (! item || gimp_item_is_position_locked (item)) + modifier = GIMP_CURSOR_MODIFIER_BAD; + } + else + { + GimpLayer *layer; + + if (gimp_display_shell_get_show_guides (shell) && + gimp_image_pick_guide (image, coords->x, coords->y, + FUNSCALEX (shell, snap_distance), + FUNSCALEY (shell, snap_distance))) + { + tool_cursor = GIMP_TOOL_CURSOR_HAND; + modifier = GIMP_CURSOR_MODIFIER_MOVE; + } + else if ((layer = gimp_image_pick_layer (image, + coords->x, coords->y, + NULL))) + { + /* if there is a floating selection, and this aint it... */ + if (gimp_image_get_floating_selection (image) && + ! gimp_layer_is_floating_sel (layer)) + { + tool_cursor = GIMP_TOOL_CURSOR_MOVE; + modifier = GIMP_CURSOR_MODIFIER_ANCHOR; + } + else if (gimp_item_is_position_locked (GIMP_ITEM (layer))) + { + modifier = GIMP_CURSOR_MODIFIER_BAD; + } + else if (layer != gimp_image_get_active_layer (image)) + { + tool_cursor = GIMP_TOOL_CURSOR_HAND; + modifier = GIMP_CURSOR_MODIFIER_MOVE; + } + } + else + { + modifier = GIMP_CURSOR_MODIFIER_BAD; + } + } + + gimp_tool_control_set_cursor (tool->control, cursor); + gimp_tool_control_set_tool_cursor (tool->control, tool_cursor); + gimp_tool_control_set_cursor_modifier (tool->control, modifier); + + GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display); +} + +static void +gimp_move_tool_draw (GimpDrawTool *draw_tool) +{ + GimpMoveTool *move = GIMP_MOVE_TOOL (draw_tool); + GList *iter; + + for (iter = move->guides; iter; iter = g_list_next (iter)) + { + GimpGuide *guide = iter->data; + GimpCanvasItem *item; + GimpGuideStyle style; + + style = gimp_guide_get_style (guide); + + item = gimp_draw_tool_add_guide (draw_tool, + gimp_guide_get_orientation (guide), + gimp_guide_get_position (guide), + style); + gimp_canvas_item_set_highlight (item, TRUE); + } +} |