699 lines
20 KiB
C
699 lines
20 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/> or
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write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <SDL.h>
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#include "global.h"
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#include "keyboard.h"
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#include "sdlscreen.h"
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#include "windows.h"
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#include "errors.h"
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#include "misc.h"
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#include "input.h"
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void Handle_window_resize(SDL_ResizeEvent event);
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void Handle_window_exit(SDL_QuitEvent event);
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byte Directional_up;
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byte Directional_up_right;
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byte Directional_right;
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byte Directional_down_right;
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byte Directional_down;
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byte Directional_down_left;
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byte Directional_left;
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byte Directional_up_left;
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long Directional_delay;
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long Directional_last_move;
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long Directional_step;
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short Mouse_count; // Number of mouse movements received in the current Get_input()
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word Input_new_mouse_X;
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word Input_new_mouse_Y;
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byte Input_new_mouse_K;
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// TODO: move to config
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short Joybutton_shift=-1; // Button number that serves as a "shift" modifier
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short Joybutton_control=-1; // Button number that serves as a "ctrl" modifier
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short Joybutton_alt=-1; // Button number that serves as a "alt" modifier
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short Joybutton_left_click=0; // Button number that serves as left click
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short Joybutton_right_click=0; // Button number that serves as right-click
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int Is_shortcut(word Key, word function)
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{
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if (Key == 0)
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return 0;
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if (function & 0x100)
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{
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if (Buttons_Pool[function&0xFF].Left_shortcut[0]==Key)
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return 1;
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if (Buttons_Pool[function&0xFF].Left_shortcut[1]==Key)
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return 1;
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return 0;
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}
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if (function & 0x200)
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{
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if (Buttons_Pool[function&0xFF].Right_shortcut[0]==Key)
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return 1;
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if (Buttons_Pool[function&0xFF].Right_shortcut[1]==Key)
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return 1;
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return 0;
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}
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if(Key == Config_Key[function][0])
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return 1;
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if(Key == Config_Key[function][1])
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return 1;
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return 0;
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}
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// Called each time there is a cursor move, either triggered by mouse or keyboard shortcuts
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int Move_cursor_with_constraints()
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{
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int feedback=0;
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//Gestion "avanc<6E>e" du curseur: interdire la descente du curseur dans le
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//menu lorsqu'on est en train de travailler dans l'image
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if (Operation_stack_size != 0)
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{
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byte bl=0;//BL va indiquer si on doit corriger la position du curseur
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//Si le curseur ne se trouve plus dans l'image
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if(Menu_Y<=Input_new_mouse_Y)
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{
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//On bloque le curseur en fin d'image
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bl++;
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Input_new_mouse_Y=Menu_Y-1; //La ligne !!au-dessus!! du menu
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}
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if(Main_magnifier_mode)
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{
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if(Operation_in_magnifier==0)
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{
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if(Input_new_mouse_X>=Main_separator_position)
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{
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bl++;
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Input_new_mouse_X=Main_separator_position-1;
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}
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}
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else
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{
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if(Input_new_mouse_X<Main_X_zoom)
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{
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bl++;
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Input_new_mouse_X=Main_X_zoom;
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}
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}
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}
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if (bl)
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{
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SDL_WarpMouse(
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Input_new_mouse_X*Pixel_width,
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Input_new_mouse_Y*Pixel_height
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);
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}
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}
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if ((Input_new_mouse_X != Mouse_X) ||
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(Input_new_mouse_Y != Mouse_Y) ||
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(Input_new_mouse_K != Mouse_K))
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{
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if ((Input_new_mouse_K != Mouse_K))
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feedback=1;
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Hide_cursor(); // On efface le curseur AVANT de le d<>placer...
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Mouse_X=Input_new_mouse_X;
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Mouse_Y=Input_new_mouse_Y;
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Mouse_K=Input_new_mouse_K;
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Compute_paintbrush_coordinates();
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Display_cursor();
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Mouse_count++;
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if (Mouse_count>Config.Mouse_merge_movement)
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feedback=1;
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}
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return feedback;
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}
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// WM events management
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void Handle_window_resize(SDL_ResizeEvent event)
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{
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Resize_width = event.w;
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Resize_height = event.h;
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}
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void Handle_window_exit(__attribute__((unused)) SDL_QuitEvent event)
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{
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Quit_is_required = 1;
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}
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// Mouse events management
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int Handle_mouse_move(SDL_MouseMotionEvent event)
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{
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Input_new_mouse_X = event.x/Pixel_width;
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Input_new_mouse_Y = event.y/Pixel_height;
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return Move_cursor_with_constraints();
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}
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int Handle_mouse_click(SDL_MouseButtonEvent event)
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{
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switch(event.button)
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{
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case SDL_BUTTON_LEFT:
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Input_new_mouse_K |= 1;
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break;
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case SDL_BUTTON_RIGHT:
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Input_new_mouse_K |= 2;
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break;
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case SDL_BUTTON_MIDDLE:
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Key = KEY_MOUSEMIDDLE|Key_modifiers(SDL_GetModState());
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// TODO: systeme de r<>p<EFBFBD>tition
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return 0;
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case SDL_BUTTON_WHEELUP:
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Key = KEY_MOUSEWHEELUP|Key_modifiers(SDL_GetModState());
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return 0;
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case SDL_BUTTON_WHEELDOWN:
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Key = KEY_MOUSEWHEELDOWN|Key_modifiers(SDL_GetModState());
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return 0;
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default:
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return 0;
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}
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return Move_cursor_with_constraints();
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}
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int Handle_mouse_release(SDL_MouseButtonEvent event)
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{
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switch(event.button)
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{
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case SDL_BUTTON_LEFT:
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Input_new_mouse_K &= ~1;
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break;
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case SDL_BUTTON_RIGHT:
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Input_new_mouse_K &= ~2;
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break;
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}
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return Move_cursor_with_constraints();
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}
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// Keyboard management
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int Handle_key_press(SDL_KeyboardEvent event)
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{
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//Appui sur une touche du clavier
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Key = Keysym_to_keycode(event.keysym);
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Key_ANSI = Keysym_to_ANSI(event.keysym);
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if(Is_shortcut(Key,SPECIAL_MOUSE_UP))
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{
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Directional_up=1;
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return 0;
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}
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else if(Is_shortcut(Key,SPECIAL_MOUSE_DOWN))
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{
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Directional_down=1;
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return 0;
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}
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else if(Is_shortcut(Key,SPECIAL_MOUSE_LEFT))
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{
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Directional_left=1;
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return 0;
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}
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else if(Is_shortcut(Key,SPECIAL_MOUSE_RIGHT))
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{
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Directional_right=1;
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return 0;
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}
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else if(Is_shortcut(Key,SPECIAL_CLICK_LEFT))
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{
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Input_new_mouse_K=1;
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return Move_cursor_with_constraints();
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}
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else if(Is_shortcut(Key,SPECIAL_CLICK_RIGHT))
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{
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Input_new_mouse_K=2;
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return Move_cursor_with_constraints();
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}
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if (Operation_stack_size!=0 && Key != 0)
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{
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//Enfin, on inhibe les touches (sauf si c'est un changement de couleur
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//ou de taille de pinceau lors d'une des operations suivantes:
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//OPERATION_CONTINUOUS_DRAW, OPERATION_DISCONTINUOUS_DRAW, OPERATION_AIRBRUSH)
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if(Allow_color_change_during_operation)
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{
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//A ce stade l<>, on sait qu'on est dans une des 3 op<6F>rations
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//supportant le changement de couleur ou de taille de pinceau.
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if(
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(!Is_shortcut(Key,SPECIAL_NEXT_FORECOLOR)) &&
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(!Is_shortcut(Key,SPECIAL_PREVIOUS_FORECOLOR)) &&
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(!Is_shortcut(Key,SPECIAL_NEXT_BACKCOLOR)) &&
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(!Is_shortcut(Key,SPECIAL_PREVIOUS_BACKCOLOR)) &&
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(!Is_shortcut(Key,SPECIAL_SMALLER_PAINTBRUSH)) &&
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(!Is_shortcut(Key,SPECIAL_BIGGER_PAINTBRUSH)) &&
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(!Is_shortcut(Key,SPECIAL_NEXT_USER_FORECOLOR)) &&
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(!Is_shortcut(Key,SPECIAL_PREVIOUS_USER_FORECOLOR)) &&
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(!Is_shortcut(Key,SPECIAL_NEXT_USER_BACKCOLOR)) &&
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(!Is_shortcut(Key,SPECIAL_PREVIOUS_USER_BACKCOLOR))
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)
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{
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Key=0;
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}
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}
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else Key = 0;
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}
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return 0;
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}
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int Release_control(int key_code, int modifier)
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{
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if(key_code == (Config_Key[SPECIAL_MOUSE_UP][0]&0x0FFF) || (Config_Key[SPECIAL_MOUSE_UP][0]&modifier) ||
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key_code == (Config_Key[SPECIAL_MOUSE_UP][1]&0x0FFF) || (Config_Key[SPECIAL_MOUSE_UP][1]&modifier))
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{
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Directional_up=0;
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}
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if(key_code == (Config_Key[SPECIAL_MOUSE_DOWN][0]&0x0FFF) || (Config_Key[SPECIAL_MOUSE_DOWN][0]&modifier) ||
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key_code == (Config_Key[SPECIAL_MOUSE_DOWN][1]&0x0FFF) || (Config_Key[SPECIAL_MOUSE_DOWN][1]&modifier))
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{
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Directional_down=0;
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}
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if(key_code == (Config_Key[SPECIAL_MOUSE_LEFT][0]&0x0FFF) || (Config_Key[SPECIAL_MOUSE_LEFT][0]&modifier) ||
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key_code == (Config_Key[SPECIAL_MOUSE_LEFT][1]&0x0FFF) || (Config_Key[SPECIAL_MOUSE_LEFT][1]&modifier))
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{
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Directional_left=0;
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}
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if(key_code == (Config_Key[SPECIAL_MOUSE_RIGHT][0]&0x0FFF) || (Config_Key[SPECIAL_MOUSE_RIGHT][0]&modifier) ||
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key_code == (Config_Key[SPECIAL_MOUSE_RIGHT][1]&0x0FFF) || (Config_Key[SPECIAL_MOUSE_RIGHT][1]&modifier))
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{
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Directional_right=0;
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}
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if(key_code == (Config_Key[SPECIAL_CLICK_LEFT][0]&0x0FFF) || (Config_Key[SPECIAL_CLICK_LEFT][0]&modifier) ||
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key_code == (Config_Key[SPECIAL_CLICK_LEFT][1]&0x0FFF) || (Config_Key[SPECIAL_CLICK_LEFT][1]&modifier))
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{
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Input_new_mouse_K &= ~1;
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return Move_cursor_with_constraints();
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}
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if(key_code == (Config_Key[SPECIAL_CLICK_RIGHT][0]&0x0FFF) || (Config_Key[SPECIAL_CLICK_RIGHT][0]&modifier) ||
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key_code == (Config_Key[SPECIAL_CLICK_RIGHT][1]&0x0FFF) || (Config_Key[SPECIAL_CLICK_RIGHT][1]&modifier))
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{
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Input_new_mouse_K &= ~2;
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return Move_cursor_with_constraints();
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}
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// Other keys don't need to be released : they are handled as "events" and procesed only once.
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// These clicks are apart because they need to be continuous (ie move while key pressed)
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// We are relying on "hardware" keyrepeat to achieve that.
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return 0;
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}
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int Handle_key_release(SDL_KeyboardEvent event)
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{
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int modifier;
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int released_key = Keysym_to_keycode(event.keysym) & 0x0FFF;
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switch(event.keysym.sym)
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{
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case SDLK_RSHIFT:
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case SDLK_LSHIFT:
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modifier=MOD_SHIFT;
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break;
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case SDLK_RCTRL:
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case SDLK_LCTRL:
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modifier=MOD_CTRL;
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break;
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case SDLK_RALT:
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case SDLK_LALT:
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case SDLK_MODE:
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modifier=MOD_ALT;
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break;
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default:
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modifier=0;
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}
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return Release_control(released_key, modifier);
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}
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// Joystick management
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int Handle_joystick_press(SDL_JoyButtonEvent event)
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{
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if (event.which==0) // Joystick number 0
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{
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if (event.button == Joybutton_shift)
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{
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SDL_SetModState(SDL_GetModState() | KMOD_SHIFT);
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return 0;
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}
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if (event.button == Joybutton_control)
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{
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SDL_SetModState(SDL_GetModState() | KMOD_CTRL);
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return 0;
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}
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if (event.button == Joybutton_alt)
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{
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SDL_SetModState(SDL_GetModState() | (KMOD_ALT|KMOD_META));
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return 0;
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}
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if (event.button == Joybutton_left_click)
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{
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Input_new_mouse_K=1;
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return Move_cursor_with_constraints();
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}
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if (event.button == Joybutton_right_click)
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{
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Input_new_mouse_K=2;
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return Move_cursor_with_constraints();
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}
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#ifdef __gp2x__
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switch(event.button)
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{
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#ifndef NO_JOYCURSOR
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case GP2X_BUTTON_UP:
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Directional_up=1;
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break;
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case GP2X_BUTTON_UPRIGHT:
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Directional_up_right=1;
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break;
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case GP2X_BUTTON_RIGHT:
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Directional_right=1;
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break;
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case GP2X_BUTTON_DOWNRIGHT:
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Directional_down_right=1;
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break;
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case GP2X_BUTTON_DOWN:
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Directional_down=1;
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break;
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case GP2X_BUTTON_DOWNLEFT:
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Directional_down_left=1;
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break;
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case GP2X_BUTTON_LEFT:
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Directional_left=1;
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break;
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case GP2X_BUTTON_UPLEFT:
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Directional_up_left=1;
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break;
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#endif
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default:
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}
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#endif
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Key = (KEY_JOYBUTTON+event.button)|Key_modifiers(SDL_GetModState());
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// TODO: systeme de r<>p<EFBFBD>tition
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return Move_cursor_with_constraints();
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}
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return 0;
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}
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int Handle_joystick_release(SDL_JoyButtonEvent event)
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{
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if (event.which==0) // Joystick number 0
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{
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if (event.button == Joybutton_shift)
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{
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SDL_SetModState(SDL_GetModState() & ~KMOD_SHIFT);
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return Release_control(0,MOD_SHIFT);
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}
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if (event.button == Joybutton_control)
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{
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SDL_SetModState(SDL_GetModState() & ~KMOD_CTRL);
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return Release_control(0,MOD_CTRL);
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}
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if (event.button == Joybutton_alt)
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{
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SDL_SetModState(SDL_GetModState() & ~(KMOD_ALT|KMOD_META));
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return Release_control(0,MOD_ALT);
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}
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#ifdef __gp2x__
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switch(event.button)
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{
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case GP2X_BUTTON_UP:
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Directional_up=0;
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break;
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case GP2X_BUTTON_UPRIGHT:
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Directional_up_right=0;
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break;
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case GP2X_BUTTON_RIGHT:
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Directional_right=0;
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break;
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case GP2X_BUTTON_DOWNRIGHT:
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Directional_down_right=0;
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break;
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case GP2X_BUTTON_DOWN:
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Directional_down=0;
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break;
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case GP2X_BUTTON_DOWNLEFT:
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Directional_down_left=0;
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break;
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case GP2X_BUTTON_LEFT:
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Directional_left=0;
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break;
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case GP2X_BUTTON_UPLEFT:
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Directional_up_left=0;
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break;
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case GP2X_BUTTON_A: // A
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Input_new_mouse_K &= ~1;
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break;
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case GP2X_BUTTON_B: // B
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Input_new_mouse_K &= ~2;
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break;
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}
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#else
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switch(event.button)
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{
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case 0: // A
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Input_new_mouse_K &= ~1;
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break;
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case 1: // B
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Input_new_mouse_K &= ~2;
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break;
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}
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#endif
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}
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return Move_cursor_with_constraints();
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}
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void Handle_joystick_movement(SDL_JoyAxisEvent event)
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{
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if (event.which==0) // Joystick number 0
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{
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#ifndef NO_JOYCURSOR
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if (event.axis==0) // X
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{
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Directional_right=Directional_left=0;
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if (event.value<-1000)
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{
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Directional_left=1;
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}
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else if (event.value>1000)
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Directional_right=1;
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}
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else if (event.axis==1) // Y
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{
|
||
Directional_up=Directional_down=0;
|
||
if (event.value<-1000)
|
||
{
|
||
Directional_up=1;
|
||
}
|
||
else if (event.value>1000)
|
||
Directional_down=1;
|
||
}
|
||
#endif
|
||
}
|
||
}
|
||
|
||
// Attempts to move the mouse cursor by the given deltas (may be more than 1 pixel at a time)
|
||
int Cursor_displace(short delta_x, short delta_y)
|
||
{
|
||
short x=Input_new_mouse_X;
|
||
short y=Input_new_mouse_Y;
|
||
|
||
if(Main_magnifier_mode && Input_new_mouse_Y < Menu_Y && Input_new_mouse_X > Main_separator_position)
|
||
{
|
||
// Cursor in zoomed area
|
||
|
||
if (delta_x<0)
|
||
Input_new_mouse_X = Max(Main_separator_position, x-Main_magnifier_factor);
|
||
else if (delta_x>0)
|
||
Input_new_mouse_X = Min(Screen_width-1, x+Main_magnifier_factor);
|
||
if (delta_y<0)
|
||
Input_new_mouse_Y = Max(0, y-Main_magnifier_factor);
|
||
else if (delta_y>0)
|
||
Input_new_mouse_Y = Min(Screen_height-1, y+Main_magnifier_factor);
|
||
}
|
||
else
|
||
{
|
||
if (delta_x<0)
|
||
Input_new_mouse_X = Max(0, x+delta_x);
|
||
else if (delta_x>0)
|
||
Input_new_mouse_X = Min(Screen_width-1, x+delta_x);
|
||
if (delta_y<0)
|
||
Input_new_mouse_Y = Max(0, y+delta_y);
|
||
else if (delta_y>0)
|
||
Input_new_mouse_Y = Min(Screen_height-1, y+delta_y);
|
||
}
|
||
return Move_cursor_with_constraints();
|
||
}
|
||
|
||
|
||
// Main input handling function
|
||
|
||
int Get_input(void)
|
||
{
|
||
SDL_Event event;
|
||
int user_feedback_required = 0; // Flag qui indique si on doit arr<72>ter de traiter les <20>v<EFBFBD>nements ou si on peut enchainer
|
||
|
||
Key_ANSI = 0;
|
||
Key = 0;
|
||
Mouse_count=0;
|
||
|
||
// Process as much events as possible without redrawing the screen.
|
||
// This mostly allows us to merge mouse events for people with an high
|
||
// resolution mouse
|
||
while( (!user_feedback_required) && SDL_PollEvent(&event)) // Try to cumulate for a full VBL except if there is a required feedback
|
||
{
|
||
switch(event.type)
|
||
{
|
||
case SDL_VIDEORESIZE:
|
||
Handle_window_resize(event.resize);
|
||
user_feedback_required = 1;
|
||
break;
|
||
|
||
case SDL_QUIT:
|
||
Handle_window_exit(event.quit);
|
||
user_feedback_required = 1;
|
||
break;
|
||
|
||
case SDL_MOUSEMOTION:
|
||
user_feedback_required = Handle_mouse_move(event.motion);
|
||
break;
|
||
|
||
case SDL_MOUSEBUTTONDOWN:
|
||
Handle_mouse_click(event.button);
|
||
user_feedback_required = 1;
|
||
break;
|
||
|
||
case SDL_MOUSEBUTTONUP:
|
||
Handle_mouse_release(event.button);
|
||
user_feedback_required = 1;
|
||
break;
|
||
|
||
case SDL_KEYDOWN:
|
||
Handle_key_press(event.key);
|
||
user_feedback_required = 1;
|
||
break;
|
||
|
||
case SDL_KEYUP:
|
||
Handle_key_release(event.key);
|
||
break;
|
||
|
||
case SDL_JOYBUTTONUP:
|
||
Handle_joystick_release(event.jbutton);
|
||
user_feedback_required = 1;
|
||
break;
|
||
|
||
case SDL_JOYBUTTONDOWN:
|
||
Handle_joystick_press(event.jbutton);
|
||
user_feedback_required = 1;
|
||
break;
|
||
|
||
case SDL_JOYAXISMOTION:
|
||
Handle_joystick_movement(event.jaxis);
|
||
break;
|
||
|
||
default:
|
||
// DEBUG("Unhandled SDL event number : ",event.type);
|
||
break;
|
||
}
|
||
}
|
||
// Directional controller
|
||
if (!(Directional_up||Directional_up_right||Directional_right||
|
||
Directional_down_right||Directional_down||Directional_down_left||
|
||
Directional_left||Directional_up_left))
|
||
{
|
||
Directional_delay=-1;
|
||
Directional_last_move=SDL_GetTicks();
|
||
}
|
||
else
|
||
{
|
||
long time_now;
|
||
|
||
time_now=SDL_GetTicks();
|
||
|
||
if (time_now>Directional_last_move+Directional_delay)
|
||
{
|
||
// Speed parameters, acceleration etc. are here
|
||
if (Directional_delay==-1)
|
||
{
|
||
Directional_delay=150;
|
||
Directional_step=16;
|
||
}
|
||
else if (Directional_delay==150)
|
||
Directional_delay=40;
|
||
else if (Directional_delay!=0)
|
||
Directional_delay=Directional_delay*8/10;
|
||
else if (Directional_step<16*4)
|
||
Directional_step++;
|
||
Directional_last_move = time_now;
|
||
|
||
// Directional controller UP
|
||
if ((Directional_up||Directional_up_left||Directional_up_right) &&
|
||
!(Directional_down_right||Directional_down||Directional_down_left))
|
||
{
|
||
Cursor_displace(0, -Directional_step/16);
|
||
}
|
||
// Directional controller RIGHT
|
||
if ((Directional_up_right||Directional_right||Directional_down_right) &&
|
||
!(Directional_down_left||Directional_left||Directional_up_left))
|
||
{
|
||
Cursor_displace(Directional_step/16,0);
|
||
}
|
||
// Directional controller DOWN
|
||
if ((Directional_down_right||Directional_down||Directional_down_left) &&
|
||
!(Directional_up_left||Directional_up||Directional_up_right))
|
||
{
|
||
Cursor_displace(0, Directional_step/16);
|
||
}
|
||
// Directional controller LEFT
|
||
if ((Directional_down_left||Directional_left||Directional_up_left) &&
|
||
!(Directional_up_right||Directional_right||Directional_down_right))
|
||
{
|
||
Cursor_displace(-Directional_step/16,0);
|
||
}
|
||
}
|
||
}
|
||
// Vidage de toute mise <20> jour de l'affichage <20> l'<27>cran qui serait encore en attente.
|
||
// (c'est fait ici car on est sur que cette function est apell<6C>e partout ou on a besoin d'interragir avec l'utilisateur)
|
||
Flush_update();
|
||
|
||
return user_feedback_required;
|
||
}
|