GrafX2: input.c File Reference

#include <string.h>
#include <limits.h>
#include "gfx2log.h"
#include "global.h"
#include "keyboard.h"
#include "screen.h"
#include "windows.h"
#include "errors.h"
#include "misc.h"
#include "osdep.h"
#include "buttons.h"
#include "input.h"
#include "loadsave.h"

Include dependency graph for input.c:

Macros
#define	PAD_MAX_SPEED 3

#define	D_JOYSTICK_UP (1 << 0)

#define	D_JOYSTICK_UP_RIGHT (1 << 1)

#define	D_JOYSTICK_RIGHT (1 << 2)

#define	D_JOYSTICK_DOWN_RIGHT (1 << 3)

#define	D_JOYSTICK_DOWN (1 << 4)

#define	D_JOYSTICK_DOWN_LEFT (1 << 5)

#define	D_JOYSTICK_LEFT (1 << 6)

#define	D_JOYSTICK_UP_LEFT (1 << 7)

#define	JOYSTICK_THRESHOLD (10000)
	This is the sensitivity threshold for the directional pad of a cheap digital joypad on the PC. More...

Functions
static int	Color_cycling (void)

int	Has_shortcut (word function)
	Returns true if the function has any shortcut key. More...

int	Is_shortcut (word key, word function)
	Returns true if the keycode has been set as a keyboard shortcut for the function. More...

int	Move_cursor_with_constraints (int x, int y)
	Called each time there is a cursor move, either triggered by mouse or keyboard shortcuts. More...

int	Handle_mouse_btn_change (void)

int	Handle_special_key_press (void)
	check Keys that emulate mouse moves, etc. More...

int	Release_control (int key_code, int modifier)

static int	Cursor_displace (int step, long delta_x, long delta_y)
	Attempts to move the mouse cursor by the given deltas. More...

int	Directional_acceleration (int msec)

static void	Mouse_Emulation ()
	Emulate mouse move with Joystick or specific keys. More...

int	Get_input (int sleep_time)
	This is the keyboard/mouse/joystick input polling function. More...

void	Adjust_mouse_sensitivity (word fullscreen)
	Adjust mouse sensitivity (and actual mouse input mode) More...

Variables
int	Input_sticky_control = 0
	This holds the ID of the GUI control that the mouse is manipulating. More...

int	Snap_axis = 0
	Allows locking movement to X or Y axis: 0=normal, 1=lock on next move, 2=locked horizontally, 3=locked vertically. More...

int	Snap_axis_origin_X
	For the :Snap_axis mode, sets the origin's point (in image coordinates) More...

int	Snap_axis_origin_Y
	For the :Snap_axis mode, sets the origin's point (in image coordinates) More...

char *	Drop_file_name = NULL
	This malloced string is set when a drag-and-drop event brings a file to Grafx2's window. More...

word *	Drop_file_name_unicode = NULL

static byte	Directional_click = 0

static byte	Digital_joystick_state = 0

static byte	Directional_emulated

word	Input_new_mouse_X

word	Input_new_mouse_Y

word	Input_new_mouse_X_frac

word	Input_new_mouse_Y_frac

byte	Input_new_mouse_K

byte	Button_inverter =0

long	Directional_first_move

long	Directional_last_move

int	Mouse_moved
	Boolean, Set to true if any cursor movement occurs. More...

byte	Pan_shortcut_pressed
	State of the shortcut for panning (SPECIAL_HOLD_PAN) : pressed or not. More...

short	Joybutton_shift =-1
	A button that is marked as "modifier" will. More...

short	Joybutton_control =-1
	Button number that serves as a "ctrl" modifier; -1 for none. More...

short	Joybutton_alt =-1
	Button number that serves as a "alt" modifier; -1 for none. More...

short	Joybutton_left_click =0
	Button number that serves as left click; -1 for none. More...

short	Joybutton_right_click =1
	Button number that serves as right-click; -1 for none. More...

Macro Definition Documentation

◆ PAD_MAX_SPEED

#define PAD_MAX_SPEED 3

◆ D_JOYSTICK_UP

#define D_JOYSTICK_UP (1 << 0)

◆ D_JOYSTICK_UP_RIGHT

#define D_JOYSTICK_UP_RIGHT (1 << 1)

◆ D_JOYSTICK_RIGHT

#define D_JOYSTICK_RIGHT (1 << 2)

◆ D_JOYSTICK_DOWN_RIGHT

#define D_JOYSTICK_DOWN_RIGHT (1 << 3)

◆ D_JOYSTICK_DOWN

#define D_JOYSTICK_DOWN (1 << 4)

◆ D_JOYSTICK_DOWN_LEFT

#define D_JOYSTICK_DOWN_LEFT (1 << 5)

◆ D_JOYSTICK_LEFT

#define D_JOYSTICK_LEFT (1 << 6)

◆ D_JOYSTICK_UP_LEFT

#define D_JOYSTICK_UP_LEFT (1 << 7)

◆ JOYSTICK_THRESHOLD

#define JOYSTICK_THRESHOLD (10000)

This is the sensitivity threshold for the directional pad of a cheap digital joypad on the PC.

It has been set through trial and error : If value is too large then the movement is randomly interrupted; if the value is too low the cursor will move by itself, controlled by parasits. YR 04/11/2010: I just observed a -8700 when joystick is idle.

Function Documentation

◆ Color_cycling()

static int Color_cycling ( void )

static

References Allow_colorcycling, T_Document::backups, Cycling_mode, T_Gradient_range::End, GFX2_GetTicks(), GFX2_SetPalette(), T_Page::Gradients, T_Gradient_range::Inverse, Main, T_List_of_pages::Pages, T_Document::palette, T_Gradient_array::Range, T_Gradient_range::Speed, and T_Gradient_range::Start.

Referenced by Get_input().

◆ Has_shortcut()

int Has_shortcut ( word function )

Returns true if the function has any shortcut key.

References Buttons_Pool, Config_Key, and KEY_NONE.

◆ Is_shortcut()

int Is_shortcut	(	word	key,
		word	function
	)

Returns true if the keycode has been set as a keyboard shortcut for the function.

References Buttons_Pool, and Config_Key.

Referenced by Button_Airbrush_menu(), Button_Anim_time(), Button_Brush_FX(), Button_Colorize_menu(), Button_Constraint_menu(), Button_Copy_page(), Button_Effects(), Button_Gradients(), Button_Grid_menu(), Button_Layer_menu(), Button_Load_or_Save(), Button_Paintbrush_menu(), Button_Palette(), Button_Quick_shade_menu(), Button_Quit_local_function(), Button_Resolution(), Button_Secondary_palette(), Button_Settings(), Button_Sieve_menu(), Button_Skins(), Button_Smooth_menu(), Button_Stats(), Button_Text(), Button_Tilemap_menu(), Button_Tiling_menu(), Button_Transform_menu(), Handle_special_key_press(), Main_handler(), Menu_shade(), Menu_tag_colors(), Save_C64_window(), Save_MOTO_window(), and Window_help().

◆ Move_cursor_with_constraints()

int Move_cursor_with_constraints	(	int	x,
		int	y
	)

Called each time there is a cursor move, either triggered by mouse or keyboard shortcuts.

Parameters

x	new cursor X coordinate
y	new cursor Y coordinate

Returns: feedback

References Config, Current_operation, Hide_cursor, Input_new_mouse_X, Input_new_mouse_Y, T_Document::magnifier_mode, Main, Menu_Y, Mouse_K_unique, T_Config::Mouse_merge_movement, Mouse_moved, Mouse_X, Mouse_Y, Operation, Operation_in_magnifier, Operation_stack_size, Screen_height, Screen_width, T_Document::separator_position, Set_mouse_position(), and T_Document::X_zoom.

Referenced by Cursor_displace(), Get_input(), and Win32_WindowProc().

◆ Handle_mouse_btn_change()

int Handle_mouse_btn_change ( void )

References Hide_cursor, Input_new_mouse_K, Input_sticky_control, Mouse_K, and Mouse_moved.

Referenced by Get_input(), Handle_special_key_press(), Release_control(), and Win32_WindowProc().

◆ Handle_special_key_press()

int Handle_special_key_press ( void )

check Keys that emulate mouse moves, etc.

References D_JOYSTICK_DOWN, D_JOYSTICK_LEFT, D_JOYSTICK_RIGHT, D_JOYSTICK_UP, Directional_click, Directional_emulated, Handle_mouse_btn_change(), Input_new_mouse_K, Is_shortcut(), Key, Keyboard_click_allowed, Pan_shortcut_pressed, SPECIAL_CLICK_LEFT, SPECIAL_CLICK_RIGHT, SPECIAL_HOLD_PAN, SPECIAL_MOUSE_DOWN, SPECIAL_MOUSE_LEFT, SPECIAL_MOUSE_RIGHT, and SPECIAL_MOUSE_UP.

Referenced by Get_input(), and Win32_WindowProc().

◆ Release_control()

int Release_control	(	int	key_code,
		int	modifier
	)

◆ Cursor_displace()

static int Cursor_displace	(	int	step,
		long	delta_x,
		long	delta_y
	)

static

Attempts to move the mouse cursor by the given deltas.

Parameters

step	move multiply factor
delta_x	16.16 fixed point value
delta_y	16.16 fixed point value

Returns: feedback

References Input_new_mouse_X, Input_new_mouse_X_frac, Input_new_mouse_Y, Input_new_mouse_Y_frac, T_Document::magnifier_factor, T_Document::magnifier_mode, Main, Move_cursor_with_constraints(), Screen_height, Screen_width, and T_Document::separator_position.

Referenced by Mouse_Emulation().

◆ Directional_acceleration()

int Directional_acceleration ( int msec )

Referenced by Mouse_Emulation().

◆ Mouse_Emulation()

static void Mouse_Emulation ( )

static

Emulate mouse move with Joystick or specific keys.

References Cursor_displace(), D_JOYSTICK_DOWN, D_JOYSTICK_DOWN_LEFT, D_JOYSTICK_DOWN_RIGHT, D_JOYSTICK_LEFT, D_JOYSTICK_RIGHT, D_JOYSTICK_UP, D_JOYSTICK_UP_LEFT, D_JOYSTICK_UP_RIGHT, Digital_joystick_state, Directional_acceleration(), Directional_emulated, Directional_first_move, Directional_last_move, GFX2_GetTicks(), and PAD_MAX_SPEED.

Referenced by Get_input().

◆ Get_input()

int Get_input ( int sleep_time )

This is the keyboard/mouse/joystick input polling function.

Returns 1 if a significant changed occurred, such as a mouse button pressed or depressed, or a new keypress was in the keyboard buffer. The latest input variables are held in Key, Key_ANSI, Key_UNICODE, Mouse_X, Mouse_Y, Mouse_K. Note that Key, Key_ANSI and Key_UNICODE are not persistent, they will be reset to 0 on subsequent calls to Get_input().

References Button_inverter, Color_cycling(), Compute_paintbrush_coordinates(), Config, Display_cursor(), Drop_file_name, Flush_update(), format, Get_Key_modifiers(), GFX2_DEBUG, GFX2_ERROR, GFX2_INFO, GFX2_Log(), GFX2_WARNING, GFX2_WINDOW_MAXIMIZED, GFX2_WINDOW_MINIMIZED, GFX2_WINDOW_STANDARD, Handle_mouse_btn_change(), Handle_special_key_press(), Input_new_mouse_K, Input_new_mouse_X, Input_new_mouse_Y, Key, Key_ANSI, KEY_MOUSEMIDDLE, KEY_MOUSEWHEELDOWN, KEY_MOUSEWHEELUP, Key_UNICODE, Mouse_Emulation(), Mouse_K, T_Config::Mouse_motion_debounce, Mouse_moved, Mouse_X, Mouse_Y, Move_cursor_with_constraints(), NULL, Pixel_height, Pixel_width, Quit_is_required, Release_control(), render_scale_x, render_scale_y, Resize_height, Resize_width, Update_rect(), user_feedback_required, T_Config::Window_pos_x, T_Config::Window_pos_y, Window_state, X11_display, and X11_window.