Differential D2451 Diff 8164 source/blender/editors/workspace/workspace_layout_edit.c

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source/blender/editors/workspace/workspace_layout_edit.c

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				/*
				* *** BEGIN GPL LICENSE BLOCK ***
				*
				* 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 2
				* 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, write to the Free Software Foundation,
				* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
				*
				* *** END GPL LICENSE BLOCK ***
				*/

				/** \file blender/editors/workspace/workspace_layout_edit.c
				* \ingroup edworkspace
				*/

				#include "BKE_context.h"
				#include "BKE_global.h"
				#include "BKE_main.h"
				#include "BKE_screen.h"
				#include "BKE_workspace.h"

				#include "BLI_listbase.h"
				#include "BLI_utildefines.h"

				#include "DNA_screen_types.h"

				#include "ED_screen.h"

				#include "WM_api.h"

				#include "screen_intern.h"


				/**
				* Empty screen, with 1 dummy area without spacedata. Uses window size.
				*/
				WorkSpaceLayout ED_workspace_layout_add(WorkSpace workspace, wmWindow win, const char name)
				{
				const int winsize_x = WM_window_pixels_x(win);
				const int winsize_y = WM_window_pixels_y(win);

				bScreen *screen = screen_add(win, name, winsize_x, winsize_y);
				WorkSpaceLayout *layout = BKE_workspace_layout_add(workspace, screen);

				return layout;
				}

				WorkSpaceLayout ED_workspace_layout_duplicate(WorkSpace workspace, const WorkSpaceLayout layout_old, wmWindow win)
				{
				bScreen *screen_old = BKE_workspace_layout_screen_get(layout_old);
				bScreen *screen_new;
				WorkSpaceLayout *layout_new;

				if (BKE_screen_is_fullscreen_area(screen_old)) {
				return NULL; /* XXX handle this case! */
				}

				layout_new = ED_workspace_layout_add(workspace, win, screen_old->id.name + 2);
				screen_new = BKE_workspace_layout_screen_get(layout_new);
				screen_data_copy(screen_new, screen_old);

				return layout_new;
				}

				static bool workspace_layout_delete_doit(bContext C, WorkSpace workspace,
				WorkSpaceLayout layout_old, WorkSpaceLayout layout_new)
				{
				Main *bmain = CTX_data_main(C);
				bScreen *screen_new = BKE_workspace_layout_screen_get(layout_new);

				ED_screen_change(C, screen_new);

				if (BKE_workspace_active_layout_get(workspace) != layout_old) {
				BKE_workspace_layout_remove(workspace, layout_old, bmain);
				return true;
				}

				return false;
				}

				static bool workspace_layout_set_poll(const WorkSpaceLayout *layout)
				{
				const bScreen *screen = BKE_workspace_layout_screen_get(layout);

				return ((BKE_screen_is_used(screen) == false) &&
				/* in typical usage temp screens should have a nonzero winid
				* (all temp screens should be used, or closed & freed). */
				(screen->temp == false) &
				(BKE_screen_is_fullscreen_area(screen) == false) &&
				(screen->id.name[2] != '.' \|\| !(U.uiflag & USER_HIDE_DOT)));
				}

				static WorkSpaceLayout workspace_layout_delete_find_new(const WorkSpaceLayout layout_old)
				{
				WorkSpaceLayout *prev = BKE_workspace_layout_prev_get(layout_old);
				WorkSpaceLayout *next = BKE_workspace_layout_next_get(layout_old);

				BKE_workspace_layout_iter_backwards_begin(layout_new, prev)
				{
				if (workspace_layout_set_poll(layout_new)) {
				return layout_new;
				}
				}
				BKE_workspace_layout_iter_end;
				BKE_workspace_layout_iter_begin(layout_new, next)
				{
				if (workspace_layout_set_poll(layout_new)) {
				return layout_new;
				}
				}
				BKE_workspace_layout_iter_end;

				return NULL;
				}

				/**
				* \warning Only call outside of area/region loops!
				* \return true if succeeded.
				*/
				bool ED_workspace_layout_delete(bContext C, WorkSpace workspace, WorkSpaceLayout *layout_old)
				{
				const bScreen *screen_old = BKE_workspace_layout_screen_get(layout_old);
				WorkSpaceLayout *layout_new;

				BLI_assert(BLI_findindex(BKE_workspace_layouts_get(workspace), layout_old) != -1);

				/* don't allow deleting temp fullscreens for now */
				if (BKE_screen_is_fullscreen_area(screen_old)) {
				return false;
				}

				/* A layout/screen can only be in use by one window at a time, so as
				* long as we are able to find a layout/screen that is unused, we
				* can safely assume ours is not in use anywhere an delete it. */

				layout_new = workspace_layout_delete_find_new(layout_old);

				if (layout_new) {
				return workspace_layout_delete_doit(C, workspace, layout_old, layout_new);
				}

				return false;
				}

				static bool workspace_layout_cycle_iter_cb(const WorkSpaceLayout layout, void UNUSED(arg))
				{
				return workspace_layout_set_poll(layout);
				}

				bool ED_workspace_layout_cycle(bContext C, WorkSpace workspace, const short direction)
				{
				WorkSpaceLayout *old_layout = BKE_workspace_active_layout_get(workspace);
				WorkSpaceLayout *new_layout;
				const bScreen *old_screen = BKE_workspace_layout_screen_get(old_layout);
				ScrArea *sa = CTX_wm_area(C);

				if (old_screen->temp \|\| (sa && sa->full && sa->full->temp)) {
				return false;
				}

				BLI_assert(ELEM(direction, 1, -1));
				new_layout = BKE_workspace_layout_iter_circular(workspace, old_layout, workspace_layout_cycle_iter_cb,
				NULL, (direction == -1) ? true : false);

				if (new_layout && (old_layout != new_layout)) {
				bScreen *new_screen = BKE_workspace_layout_screen_get(new_layout);

				if (sa && sa->full) {
				/* return to previous state before switching screens */
				ED_screen_full_restore(C, sa); /* may free screen of old_layout */
				}

				ED_screen_change(C, new_screen);

				return true;
				}

				return false;
				}