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grafX2/struct.h
Adrien Destugues 6a4ba08343 Support for stacked menubars. May still be incomplete... 
TODO : add a way to hide and show them...


git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1178 416bcca6-2ee7-4201-b75f-2eb2f807beb1
2009-11-14 10:25:23 +00:00

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/* vim:expandtab:ts=2 sw=2:
*/
/* Grafx2 - The Ultimate 256-color bitmap paint program
Copyright 2008 Yves Rizoud
Copyright 2007 Adrien Destugues
Copyright 1996-2001 Sunset Design (Guillaume Dorme & Karl Maritaud)
Grafx2 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; version 2
of the License.
Grafx2 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 Grafx2; if not, see <http://www.gnu.org/licenses/>
*/
//////////////////////////////////////////////////////////////////////////////
///@file struct.h
/// Structures that can be used in the whole program.
//////////////////////////////////////////////////////////////////////////////
#ifndef _STRUCT_H_
#define _STRUCT_H_
#if defined(__BEOS__)
#include <inttypes.h>
#else
#include <stdint.h>
#endif
#include "const.h"
// POSIX calls it strcasecmp, Windows uses stricmp... no ANSI standard.
#ifdef WIN32
#define strcasecmp stricmp
#endif
// Definition of the base data types
/// 8bit unsigned integer
#define byte uint8_t
/// 16bit unsigned integer
#define word uint16_t
/// 32bit unsigned integer
#define dword uint32_t
/// 64bit unsigned integer
#define qword uint64_t
// Named function prototypes
// GrafX2 use a lot of function pointer to do the drawing depending in the "fake hardware zoom" and the magnifier status.
typedef void (* Func_action) (void); ///< An action. Used when you click a menu button or trigger a keyboard shortcut.
typedef void (* Func_pixel) (word,word,byte); ///< Set pixel at position (x,y) to color c. Used in load screen to write the data to brush, picture, or preview area.
typedef byte (* Func_read) (word,word); ///< Read a pixel at position (x,y) on something. Used for example in save to tell if the data is a brush or a picture
typedef void (* Func_clear) (byte);
typedef void (* Func_display) (word,word,word);
typedef byte (* Func_effect) (word,word,byte); ///< Called by all drawing tools to draw with a special effect (smooth, transparency, shade, ...)
typedef void (* Func_block) (word,word,word,word,byte);
typedef void (* Func_line_XOR) (word,word,word); ///< Draw an XOR line on the picture view of the screen. Use a different function when in magnify mode.
typedef void (* Func_display_brush_color) (word,word,word,word,word,word,byte,word);
typedef void (* Func_display_brush_mono) (word,word,word,word,word,word,byte,byte,word);
typedef void (* Func_gradient) (long,short,short);
typedef void (* Func_remap) (word,word,word,word,byte *);
typedef void (* Func_procsline) (word,word,word,byte *);
typedef void (* Func_display_zoom) (word,word,word,byte *);
typedef void (* Func_display_brush_color_zoom) (word,word,word,word,word,word,byte,word,byte *);
typedef void (* Func_display_brush_mono_zoom) (word,word,word,word,word,word,byte,byte,word,byte *);
typedef void (* Func_draw_brush) (byte *,word,word,word,word,word,word,byte,word);
typedef void (* Func_draw_list_item) (word,word,word,byte); ///< Draw an item inside a list button. This is done with a callback so it is possible to draw anything, as the list itself doesn't handle the content
/// A set of RGB values.
#pragma pack(1)
typedef struct
{
byte R; ///< Red
byte G; ///< Green
byte B; ///< Blue
} T_Components, T_Palette[256]; ///< A complete 256-entry RGB palette (768 bytes).
#pragma pack()
/// A normal rectangular button in windows and menus.
typedef struct T_Normal_button
{
short Number; ///< Unique identifier for all controls
word Pos_X; ///< Coordinate for top of button, relative to the window, before scaling.
word Pos_Y; ///< Coordinate for left of button, relative to the window, before scaling.
word Width; ///< Width before scaling
word Height; ///< Height before scaling
byte Clickable; ///< Boolean, unused.
byte Repeatable; ///< Boolean, true if the button activates repeatedly until you release the mouse button. Used for "+" buttons, for example.
word Shortcut; ///< Keyboard shortcut that will emulate a click on this button.
struct T_Normal_button * Next;///< Pointer to the next normal button of current window.
} T_Normal_button;
/// A window control that shows a complete 256-color palette
typedef struct T_Palette_button
{
short Number; ///< Unique identifier for all controls
word Pos_X; ///< Coordinate for top of button, relative to the window, before scaling.
word Pos_Y; ///< Coordinate for left of button, relative to the window, before scaling.
struct T_Palette_button * Next;///< Pointer to the next palette of current window.
} T_Palette_button;
/// A window control that represents a vertical scrollbar, with a slider, and two arrow buttons.
typedef struct T_Scroller_button
{
short Number; ///< Unique identifier for all controls
word Pos_X; ///< Coordinate for top of button, relative to the window, before scaling.
word Pos_Y; ///< Coordinate for left of button, relative to the window, before scaling.
word Height; ///< Height before scaling.
word Nb_elements; ///< Number of distinct values it can take.
word Nb_visibles; ///< If this slider is meant to show several elements of a collection, this is their number (otherwise, it's 1).
word Position; ///< Current position of the slider: which item it's pointing.
word Cursor_height; ///< Vertical dimension of the slider, in pixels before scaling.
struct T_Scroller_button * Next;///< Pointer to the next scroller of current window.
} T_Scroller_button;
/// Special invisible button
/// A window control that only has a rectangular "active" area which catches mouse clicks,
// but no visible shape. It's used for custom controls where the drawing is done on
// a case by case basis.
typedef struct T_Special_button
{
short Number; ///< Unique identifier for all controls
word Pos_X; ///< Coordinate for top of button, relative to the window, before scaling.
word Pos_Y; ///< Coordinate for left of button, relative to the window, before scaling.
word Width; ///< Width before scaling
word Height; ///< Height before scaling
struct T_Special_button * Next;///< Pointer to the next special button of current window.
} T_Special_button;
/// Data for a dropdown item, ie. one proposed choice.
typedef struct T_Dropdown_choice
{
short Number; ///< Value that identifies the choice (for this dropdown only)
const char * Label; ///< String to display in the dropdown panel
struct T_Dropdown_choice * Next;///< Pointer to the next choice for this dropdown.
} T_Dropdown_choice;
/// A window control that behaves like a dropdown button.
typedef struct T_Dropdown_button
{
short Number; ///< Unique identifier for all controls
word Pos_X; ///< Coordinate for top of button, relative to the window, before scaling.
word Pos_Y; ///< Coordinate for left of button, relative to the window, before scaling.
word Width; ///< Width before scaling
word Height; ///< Height before scaling
byte Display_choice; ///< Boolean, true if the engine should print the selected item's label in the dropdown area when the user chooses it.
byte Display_centered; ///< Boolean, true to center the labels (otherwise, align left)
byte Display_arrow; ///< Boolean, true to display a "down" arrow box in top right
byte Active_button; ///< Determines which mouse button(s) cause the dropdown panel to open: LEFT_SIDE || RIGHT_SIDE || (LEFT_SIDE|RIGHT_SIDE)
word Dropdown_width; ///< Width of the dropdown panel when it's open. Use 0 for "same as the dropdown button"
T_Dropdown_choice * First_item; ///< Linked list with the choices available for this dropdown.
struct T_Dropdown_button * Next;///< Pointer to the next dropdown button of current window.
} T_Dropdown_button;
/// Data for one item (file, directory) in a fileselector.
typedef struct T_Fileselector_item
{
char Short_name[19]; ///< Name to display.
char Full_name[256]; ///< Filesystem value.
byte Type; ///< Type of item: 0 = File, 1 = Directory, 2 = Drive
struct T_Fileselector_item * Next; ///< Pointer to next item of the current fileselector.
struct T_Fileselector_item * Previous;///< Pointer to previous item of the current fileselector.
} T_Fileselector_item;
/// Data for a fileselector
typedef struct T_Fileselector
{
/// Number of elements in the current fileselector's ::Filelist
short Nb_elements;
/// Number of files in the current fileselector's ::Filelist
short Nb_files;
/// Number of directories in the current fileselector's ::Filelist
short Nb_directories;
/// Head of the linked list for the fileselector.
T_Fileselector_item * First;
/// Index for direct access to element number N
T_Fileselector_item ** Index;
} T_Fileselector;
/// "List" button as used in the font selection, skin selection, and brush factory screens. It's like a limited filelist.
/// The screenmode selection and load/save screen were written before this existed so they use their own code. It would be nice if they were updated to use this one.
typedef struct T_List_button
{
short Number; ///< Unique identifier for all controls
short List_start; ///< Index of the font to appear as first line
short Cursor_position; ///< Index of the selected line (0=top)
T_Special_button * Entry_button; ///< Pointer to the associated selection control.
T_Scroller_button * Scroller; ///< Pointer to the associated scroller
Func_draw_list_item Draw_list_item; ///<
struct T_List_button * Next; ///< Pointer to the next list button of current window.
} T_List_button;
/// Data for one line of the "Help" screens.
typedef struct {
char Line_type; ///< Kind of line: 'N' for normal line, 'S' for a bold line, 'K' for a line with keyboard shortcut, 'T' and '-' for upper and lower titles.
char * Text; ///< Displayed string.
int Line_parameter; ///< Generic parameter depending on line type. For 'K' lines: a shortcut identifier. For others: unused.
} T_Help_table;
/// Data for one section of the "Help" screens, ie a page.
typedef struct
{
const T_Help_table* Help_table; ///< Pointer to the array of ::T_Help_table that contains the lines
word Length; ///< Size of the array of lines
} T_Help_section;
/// Data for one setting of gradients. Warning, this one is saved/loaded as binary.
typedef struct
{
byte Start; ///< First color
byte End; ///< Last color
dword Inverse; ///< Boolean, true if the gradient goes in descending order
dword Mix; ///< Amount of randomness to add to the mix (0-255)
dword Technique;///< Gradient technique: 0 (no pattern) 1 (dithering), or 2 (big dithering)
} T_Gradient_array;
/// Data for one setting of shade. Warning, this one is saved/loaded as binary.
typedef struct
{
word List[512]; ///< List of entries, each one is either a color (0-255) or -1 for empty.
byte Step; ///< Step to increment/decrement on left-clicks.
byte Mode; ///< Shade mode: Normal, Loop, or No-saturation see ::SHADE_MODES
} T_Shade;
#pragma pack(1) // is it useful ?
/// Data for one fullscreen video mode in configuration file. Warning, this one is saved/loaded as binary.
typedef struct
{
byte State; ///< How good is the mode supported. 0:Good (white) 1:OK (light) 2:So-so (dark) 4:User-disabled (black); +128 => System doesn't support it at all.
word Width; ///< Videomode width in pixels.
word Height;///< Videomode height in pixels.
} T_Config_video_mode;
/// Header for gfx2.cfg. Warning, this one is saved/loaded as binary.
typedef struct
{
char Signature[3]; ///< Signature for the file format. "CFG".
byte Version1; ///< Major version number (ex: 2)
byte Version2; ///< Minor version number (ex: 0)
byte Beta1; ///< Major beta version number (ex: 96)
byte Beta2; ///< Major beta version number (ex: 5)
} T_Config_header;
#pragma pack()
/// Header for a config chunk in for gfx2.cfg. Warning, this one is saved/loaded as binary.
typedef struct
{
byte Number; ///< Section identfier. Possible values are in enum ::CHUNKS_CFG
word Size; ///< Size of the configuration block that follows, in bytes.
} T_Config_chunk;
#pragma pack(1)
/// Configuration for one keyboard shortcut in gfx2.cfg. Warning, this one is saved/loaded as binary.
typedef struct
{
word Number; ///< Indicates the shortcut action. This is a number starting from 0, which matches ::T_Key_config.Number
word Key; ///< Keyboard shortcut: SDLK_something, or -1 for none
word Key2; ///< Alternate keyboard shortcut: SDLK_something, or -1 for none
} T_Config_shortcut_info;
#pragma pack()
/// This structure holds all the settings saved and loaded as gfx2.ini.
typedef struct
{
char *Font_file; ///< Name of the font used in the menus. Matches file skins/font_*.png (Case-sensitive on some filesystems)
char *Skin_file; ///< String, name of the file where all the graphic data is stored
int Show_hidden_files; ///< Boolean, true to show hidden files in fileselectors.
int Show_hidden_directories; ///< Boolean, true to show hidden directories in fileselectors.
// int Show_system_directories; ///< (removed when converted from DOS)
byte Display_image_limits; ///< Boolean, true to display a dotted line at the borders of the image if it's smaller than screen.
byte Cursor; ///< Mouse cursor aspect: 1 Solid, 2 Transparent, 3 Thin
byte Maximize_preview; ///< Boolean, true to make previews in fileselector fit the whole rectangle.
byte Auto_set_res; ///< Boolean, true to make grafx2 switch to a new resolution whenever you load an image.
byte Coords_rel; ///< Boolean, true to display coordinates as relative (instead of absolute)
byte Backup; ///< Boolean, true to backup the original file whenever you save an image.
byte Adjust_brush_pick; ///< Boolean, true to omit the right and bottom edges when grabbing a brush in Grid mode.
byte Auto_save; ///< Boolean, true to save configuration when exiting program.
byte Max_undo_pages; ///< Number of steps to memorize for Undo/Redo.
byte Mouse_sensitivity_index_x; ///< Mouse sensitivity in X axis
byte Mouse_sensitivity_index_y; ///< Mouse sensitivity in Y axis
byte Mouse_merge_movement; ///< Number of SDL mouse events that are merged into a single change of mouse coordinates.
byte Delay_left_click_on_slider; ///< Delay (in 1/100s) between two activations of a repeatable button when you hold left-click.
byte Delay_right_click_on_slider; ///< Delay (in 1/100s) between two activations of a repeatable button when you hold left-click.
long Timer_delay; ///< Delay (in 1/55s) before showing a preview in a fileselector.
T_Components Fav_menu_colors[4]; ///< Favorite colors to use for the menu.
int Nb_max_vertices_per_polygon; ///< Limit for the number of vertices in polygon tools.
byte Clear_palette; ///< Boolean, true to reset the palette (to black) before loading an image.
byte Set_resolution_according_to; ///< When Auto_set_res is on, this determines if the mode should be chosen according to the "original screen" information in the file (1) or the picture dimensons (2)
int8_t Ratio; ///< Determines the scaling of menu and windows: 0 no scaling, 1 scaling, 2 slight scaling, negative= opposite of max scaling
byte Fast_zoom; ///< Boolean, true if the magnifier shortcut should automatically view the mouse area.
byte Find_file_fast; ///< In fileselectors, this determines which entries should be sought when typing letters: 0 all, 1 files only, 2 directories only.
byte Separate_colors; ///< Boolean, true if the menu palette should separate color cells with a black outline.
word Palette_cells_X; ///< Number of colors to show in a row of the menu palette.
word Palette_cells_Y; ///< Number of colors to show in a column of the menu palette.
byte Palette_vertical; ///< Boolean, true if the menu palette should go top to bottom instead of left to right
byte FX_Feedback; ///< Boolean, true if drawing effects should read the image being modified (instead of the image before clicking)
byte Safety_colors; ///< Boolean, true to make the palette automatically re-create menu colors if needed after a "Zap" or color reduction.
byte Opening_message; ///< Boolean, true to display the splash screen on strtup.
byte Clear_with_stencil; ///< Boolean, true to take the stencil into effect (if active) when using the Clear function.
byte Auto_discontinuous; ///< Boolean, true to automatically switch to the discontinuous freehand draw after grabbing a brush.
byte Screen_size_in_GIF; ///< Boolean, true to store current resolution in GIF files.
byte Auto_nb_used; ///< Boolean, true to count colors in Palette screen.
byte Default_resolution; ///< Default video mode to use on startup. Index in ::Video_mode.
char *Bookmark_directory[NB_BOOKMARKS];///< Bookmarked directories in fileselectors: This is the full dierctory name.
char Bookmark_label[NB_BOOKMARKS][8+1];///< Bookmarked directories in fileselectors: This is the displayed name.
int Window_pos_x; ///< Last window x position (9999 if unsupportd/irrelevant for the platform)
int Window_pos_y; ///< Last window y position (9999 if unsupportd/irrelevant for the platform)
word Double_click_speed; ///< Maximum delay for double-click, in ms.
word Double_key_speed; ///< Maximum delay for double-keypress, in ms.
byte Grid_XOR_color; ///< XOR value to apply for grid color.
} T_Config;
// Structures utilis<69>es pour les descriptions de pages et de liste de pages.
// Lorsqu'on g<>rera les animations, il faudra aussi des listes de listes de
// pages.
// Ces structures sont manipul<75>es <20> travers des fonctions de gestion du
// backup dans "graph.c".
/// This is the data for one step of Undo/Redo, for one image.
/// This structure is resized dynamically to hold pointers to all of the layers in the picture.
/// The pointed layers are just byte* holding the raw pixel data. But at Image[0]-1 you will find a short that is used as a reference counter for each layer.
/// This way we can use the same pixel data in many undo pages when the user edit only one of the layers (which is what they usually do).
typedef struct T_Page
{
int Width; ///< Image width in pixels.
int Height; ///< Image height in pixels.
T_Palette Palette; ///< Image palette.
char Comment[COMMENT_SIZE+1]; ///< Comment to store in the image file.
char File_directory[MAX_PATH_CHARACTERS];///< Directory that contains the file.
char Filename[MAX_PATH_CHARACTERS]; ///< Filename without directory.
byte File_format; ///< File format, in enum ::FILE_FORMATS
struct T_Page *Next; ///< Pointer to the next backup
struct T_Page *Prev; ///< Pointer to the previous backup
word Transparent_color; ///< Index of transparent color. -1 or 0 to 255.
byte Nb_layers; ///< Number of layers
byte * Image[0]; ///< Pixel data for the (first layer of) image.
// No field after Image[] ! Dynamic layer allocation for Image[1], [2] etc.
} T_Page;
/// Collection of undo/redo steps.
typedef struct
{
int List_size; ///< Number of ::T_Page in the vector "Pages".
T_Page * Pages; ///< Head of a linked list of pages, each one being a undo/redo step.
} T_List_of_pages;
/// A single image bitmap
/// This struct is used to store a flattened view of the current picture.
typedef struct
{
int Width; ///< Image width in pixels.
int Height; ///< Image height in pixels.
byte * Image; ///< Pixel data for the image.
} T_Image;
/// A single memorized brush from the Brush Container
typedef struct
{
byte Paintbrush_shape; ///< Kind of brush
byte Thumbnail[BRUSH_CONTAINER_PREVIEW_WIDTH][BRUSH_CONTAINER_PREVIEW_HEIGHT];
// Data for color brush
word Width;
word Height;
byte * Brush; /// < Color brush (if any)
T_Palette Palette;
byte Transp_color;
} T_Brush_template;
/// GUI skin data
typedef struct
{
// Mouse
/// X coordinate of the mouse cursor's "hot spot". It is < ::CURSOR_SPRITE_WIDTH
word Cursor_offset_X[NB_CURSOR_SPRITES];
/// Y coordinate of the mouse cursor's "hot spot". It is < ::CURSOR_SPRITE_HEIGHT
word Cursor_offset_Y[NB_CURSOR_SPRITES];
/// Graphic resources for the mouse cursor.
byte Cursor_sprite[NB_CURSOR_SPRITES][CURSOR_SPRITE_HEIGHT][CURSOR_SPRITE_WIDTH];
// Preset paintbrushes
/// Graphic resources for the preset paintbrushes.
byte Paintbrush_sprite [NB_PAINTBRUSH_SPRITES][PAINTBRUSH_HEIGHT][PAINTBRUSH_WIDTH];
/// Width of the preset paintbrushes.
word Preset_paintbrush_width[NB_PAINTBRUSH_SPRITES];
/// Height of the preset paintbrushes.
word Preset_paintbrush_height[NB_PAINTBRUSH_SPRITES];
/// Type of the preset paintbrush: index in enum PAINTBRUSH_SHAPES
byte Paintbrush_type[NB_PAINTBRUSH_SPRITES];
/// Brush handle for the preset brushes. Generally ::Preset_paintbrush_width[]/2
word Preset_paintbrush_offset_X[NB_PAINTBRUSH_SPRITES];
/// Brush handle for the preset brushes. Generally ::Preset_paintbrush_height[]/2
word Preset_paintbrush_offset_Y[NB_PAINTBRUSH_SPRITES];
// Sieve patterns
/// Preset sieve patterns, stored as binary (one word per line)
word Sieve_pattern[12][16];
// Menu and other graphics
/// Bitmap data for the menu, a single rectangle.
byte Menu_block[35][MENU_WIDTH];
byte Layerbar_block[10][MENU_WIDTH];
byte Statusbar_block[9][MENU_WIDTH];
/// Bitmap data for the icons that are displayed over the menu.
byte Menu_sprite[NB_MENU_SPRITES][MENU_SPRITE_HEIGHT][MENU_SPRITE_WIDTH];
/// Bitmap data for the different "effects" icons.
byte Effect_sprite[NB_EFFECTS_SPRITES][MENU_SPRITE_HEIGHT][MENU_SPRITE_WIDTH];
/// Bitmap data for the Grafx2 logo that appears on splash screen. All 256 colors allowed.
byte Logo_grafx2[231*56];
/// Bitmap data for the 6x8 font used in help screens.
byte Help_font_norm [256][6][8];
/// Bitmap data for the 6x8 font used in help screens ("bold" verstion).
byte Bold_font [256][6][8];
// 12
// 34
/// Bitmap data for the title font used in help screens. Top-left quarter.
byte Help_font_t1 [64][6][8];
/// Bitmap data for the title font used in help screens. Top-right quarter.
byte Help_font_t2 [64][6][8];
/// Bitmap data for the title font used in help screens. Bottom-left quarter.
byte Help_font_t3 [64][6][8];
/// Bitmap data for the title font used in help screens. Bottom-right quarter.
byte Help_font_t4 [64][6][8];
/// Bitmap data for the small 8x8 icons.
byte Icon_sprite[NB_ICON_SPRITES][ICON_SPRITE_HEIGHT][ICON_SPRITE_WIDTH];
/// A default 256-color palette.
T_Palette Default_palette;
/// Preview for displaying in the skin dialog
byte Preview[16][173];
/// Black GUI color index in skin palette
byte Color_black;
/// Dark GUI color index in skin palette
byte Color_dark;
/// Light GUI color index in skin palette
byte Color_light;
/// White GUI color index in skin palette
byte Color_white;
/// Transparent GUI color index in skin file
byte Color_trans;
} T_Gui_skin;
// A menubar.
typedef struct {
word width;
word height;
byte visible;
byte* skin;
} T_Menu_Bar;
typedef enum {
status_bar = 0, // MUST be 0
layers_bar,
main_bar,
MENUBARS_COUNT
} T_Menubars;
#endif
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