2fd88b81bb
git-svn-id: svn://pulkomandy.tk/GrafX2/branches/layers@1045 416bcca6-2ee7-4201-b75f-2eb2f807beb1
86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/* Grafx2 - The Ultimate 256-color bitmap paint program
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Copyright 2007 Adrien Destugues
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Copyright 1996-2001 Sunset Design (Guillaume Dorme & Karl Maritaud)
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Grafx2 is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2
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of the License.
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Grafx2 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Grafx2; if not, see <http://www.gnu.org/licenses/>
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*/
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//////////////////////////////////////////////////////////////////////////////
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///@file pages.h
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/// Handler for the Undo/Redo system.
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//////////////////////////////////////////////////////////////////////////////
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#ifndef _PAGES_H_
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#define _PAGES_H_
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//////////////////////////////////////////////////////////////////////////
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/////////////////////////// BACKUP ///////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////
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///
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/// INDIVIDUAL PAGES
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///
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void Download_infos_page_main(T_Page * page);
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void Upload_infos_page_main(T_Page * page);
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// private
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T_Page * New_page(byte nb_layers);
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void Download_infos_page_spare(T_Page * page);
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void Upload_infos_page_spare(T_Page * page);
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void Download_infos_backup(T_List_of_pages * list);
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void Clear_page(T_Page * page);
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void Copy_S_page(T_Page * dest,T_Page * source);
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///
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/// LISTS OF PAGES
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///
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void Init_list_of_pages(T_List_of_pages * list);
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// private
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int Allocate_list_of_pages(T_List_of_pages * list);
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void Backward_in_list_of_pages(T_List_of_pages * list);
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void Advance_in_list_of_pages(T_List_of_pages * list);
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void Free_last_page_of_list(T_List_of_pages * list);
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int Create_new_page(T_Page * new_page,T_List_of_pages * current_list);
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void Change_page_number_of_list(T_List_of_pages * list,int number);
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void Free_page_of_a_list(T_List_of_pages * list);
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///
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/// BACKUP HIGH-LEVEL FUNCTIONS
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///
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int Init_all_backup_lists(int width,int height);
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void Set_number_of_backups(int nb_backups);
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int Backup_with_new_dimensions(int upload,int width,int height);
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int Backup_and_resize_the_spare(int width,int height);
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/// Backup with a new copy for the working layer, and references for all others.
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void Backup(void);
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/// Backup with a new copy of some layers (the others are references).
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void Backup_layers(byte layer_mask);
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void Undo(void);
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void Redo(void);
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void Free_current_page(void); // 'Kill' button
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void Exchange_main_and_spare(void);
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void End_of_modification(void);
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#endif
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