212 lines
4.2 KiB
C
212 lines
4.2 KiB
C
/* SVGALib mouse input support */
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#include <conf.h>
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#ifdef SVGALIB_INPUT
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#include <string.h>
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#include <vga.h>
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#include <vgamouse.h>
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#include "fix.h"
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#include "timer.h"
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#include "event.h"
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#include "mouse.h"
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ubyte installed = 0;
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struct mousebutton {
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ubyte pressed;
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fix time_went_down;
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fix time_held_down;
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uint num_downs;
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uint num_ups;
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};
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static struct mouseinfo {
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struct mousebutton buttons[MOUSE_MAX_BUTTONS];
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//added on 10/17/98 by Hans de Goede for mouse functionality
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int min_x, min_y;
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int max_x, max_y;
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int delta_x, delta_y;
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int x,y;
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//end this section addition - Hans
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} Mouse;
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void mouse_handler (int vga_button, int dx, int dy, int dz, int drx, int dry, int drz)
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{
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int i;
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int button;
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int state;
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/* map bit 0,1,2 (R,M,L) to 1,2,0 */
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button = ((vga_button & 1) << 1) | ((vga_button & 2) << 1) |
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((vga_button & 4) >> 2);
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for (i = 0; i < 8; i++)
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{
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state = button & (1 << i);
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if (!Mouse.buttons[i].pressed && state)
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{
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Mouse.buttons[i].time_went_down = timer_get_fixed_seconds();
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Mouse.buttons[i].num_downs++;
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}
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else if (Mouse.buttons[i].pressed && !state)
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{
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Mouse.buttons[i].num_ups++;
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}
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Mouse.buttons[i].pressed = state;
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}
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Mouse.delta_x += dx;
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Mouse.delta_y += dy;
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Mouse.x += dx;
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Mouse.y += dy;
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if (Mouse.x > Mouse.max_x) Mouse.x = Mouse.max_x;
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else if (Mouse.x < Mouse.min_x) Mouse.x = Mouse.min_x;
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if (Mouse.y > Mouse.max_y) Mouse.y = Mouse.max_y;
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else if (Mouse.y < Mouse.min_y) Mouse.y = Mouse.min_y;
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}
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void d_mouse_close(void)
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{
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if (installed)
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vga_setmousesupport(0);
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installed = 0;
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}
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void d_mouse_init(void)
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{
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memset(&Mouse,0,sizeof(Mouse));
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vga_setmousesupport(1);
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if (!installed)
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atexit(d_mouse_close);
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installed = 1;
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}
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int mouse_set_limits( int x1, int y1, int x2, int y2 )
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{
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event_poll();
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Mouse.min_x = x1;
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Mouse.min_y = y1;
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Mouse.max_x = x2;
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Mouse.max_y = y2;
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return 0;
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}
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void mouse_flush() // clears all mice events...
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{
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int i;
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fix current_time;
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event_poll();
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current_time = timer_get_fixed_seconds();
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for (i=0; i<MOUSE_MAX_BUTTONS; i++)
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{
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Mouse.buttons[i].pressed=0;
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Mouse.buttons[i].time_went_down=current_time;
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Mouse.buttons[i].time_held_down=0;
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Mouse.buttons[i].num_ups=0;
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Mouse.buttons[i].num_downs=0;
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}
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//added on 10/17/98 by Hans de Goede for mouse functionality
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Mouse.delta_x = 0;
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Mouse.delta_y = 0;
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Mouse.x = 0;
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Mouse.y = 0;
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//end this section addition - Hans
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}
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//========================================================================
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void mouse_get_pos( int *x, int *y)
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{
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event_poll();
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*x = Mouse.x;
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*y = Mouse.y;
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}
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void mouse_get_delta( int *dx, int *dy )
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{
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event_poll();
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*dx = Mouse.delta_x;
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*dy = Mouse.delta_y;
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Mouse.delta_x = 0;
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Mouse.delta_y = 0;
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}
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int mouse_get_btns()
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{
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int i;
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uint flag=1;
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int status = 0;
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event_poll();
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for (i=0; i<MOUSE_MAX_BUTTONS; i++ )
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{
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if (Mouse.buttons[i].pressed)
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status |= flag;
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flag <<= 1;
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}
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return status;
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}
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void mouse_set_pos( int x, int y)
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{
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event_poll();
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Mouse.x=x;
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Mouse.y=y;
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if (Mouse.x > Mouse.max_x) Mouse.x = Mouse.max_x;
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else if (Mouse.x < Mouse.min_x) Mouse.x = Mouse.min_x;
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if (Mouse.y > Mouse.max_y) Mouse.y = Mouse.max_y;
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else if (Mouse.y < Mouse.min_y) Mouse.y = Mouse.min_y;
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//end this section change - Hans
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}
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void mouse_get_cyberman_pos( int *x, int *y )
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{
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// Shrug...
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event_poll();
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}
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// Returns how long this button has been down since last call.
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fix mouse_button_down_time(int button)
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{
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fix time_down, time;
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event_poll();
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if (!Mouse.buttons[button].pressed) {
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time_down = Mouse.buttons[button].time_held_down;
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Mouse.buttons[button].time_held_down = 0;
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} else {
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time = timer_get_fixed_seconds();
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time_down = time - Mouse.buttons[button].time_held_down;
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Mouse.buttons[button].time_held_down = time;
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}
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return time_down;
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}
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// Returns how many times this button has went down since last call
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int mouse_button_down_count(int button)
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{
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int count;
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event_poll();
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count = Mouse.buttons[button].num_downs;
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Mouse.buttons[button].num_downs = 0;
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return count;
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}
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// Returns 1 if this button is currently down
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int mouse_button_state(int button)
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{
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event_poll();
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return Mouse.buttons[button].pressed;
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}
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#endif /* SVGALIB_INPUT */
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