+++ /dev/null
-/*
-winnie - an experimental window system
-
-Copyright (C) 2013 Eleni Maria Stea
-
-This program 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, either version 3 of the License, or
-(at your option) any later version.
-
-This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
-
-Author: Eleni Maria Stea <elene.mst@gmail.com>
-*/
-
-#ifdef WINNIE_FBDEV
-#include <errno.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <termios.h>
-#include <unistd.h>
-
-#include "geom.h"
-#include "gfx.h"
-#include "mouse.h"
-#include "shalloc.h"
-#include "window.h"
-#include "winnie.h"
-#include "wm.h"
-
-#define BN_LEFT 1
-#define BN_RIGHT 2
-#define BN_MIDDLE 4
-
-static int read_mouse();
-
-struct Mouse {
- int dev_fd;
- Rect bounds;
- int pointer_x;
- int pointer_y;
- int bnstate;
-};
-
-static Mouse *mouse;
-
-bool init_mouse()
-{
- if(!(mouse = (Mouse*)sh_malloc(sizeof *mouse))) {
- return false;
- }
- get_subsys()->mouse_offset = (int)((char*)mouse - (char*)get_pool());
- memset(mouse, 0, sizeof *mouse);
-
- mouse->dev_fd = -1;
-
- if((mouse->dev_fd = open("/dev/psaux", O_RDONLY | O_NONBLOCK)) == -1) {
- fprintf(stderr, "Cannot open /dev/psaux : %s\n", strerror(errno));
- return false;
- }
-
- set_mouse_bounds(get_screen_size());
- return true;
-}
-
-void destroy_mouse()
-{
- if(mouse->dev_fd != -1) {
- close(mouse->dev_fd);
- mouse->dev_fd = -1;
- }
- sh_free(mouse);
-}
-
-void set_mouse_bounds(const Rect &rect)
-{
- mouse->bounds = rect;
-}
-
-int get_mouse_fd()
-{
- return mouse->dev_fd;
-}
-
-void process_mouse_event()
-{
- /* TODO:
- * - read all pending events from mouse fd (use O_NONBLOCK so that
- * read will return -1 when there are no more events instead of blocking).
- */
-
- int prev_state = mouse->bnstate;
- int prev_x = mouse->pointer_x;
- int prev_y = mouse->pointer_y;
-
- if(read_mouse() == -1) {
- return;
- }
-
- Window *top;
- if(!(top = wm->get_grab_window())) {
- top = wm->get_window_at_pos(mouse->pointer_x, mouse->pointer_y);
- if(top) {
- wm->set_focused_window(top);
- }
- else {
- wm->set_focused_window(0);
- }
- }
-
- /* - send each pointer move and button press/release to the topmost window
- * with the pointer on it.
- */
-
- int dx = mouse->pointer_x - prev_x;
- int dy = mouse->pointer_y - prev_y;
-
- if((dx || dy) && top) {
- MouseMotionFuncType motion_callback = top->get_mouse_motion_callback();
- if(motion_callback) {
- Rect rect = top->get_absolute_rect();
- motion_callback(top, mouse->pointer_x - rect.x, mouse->pointer_y - rect.y);
- }
- }
-
- MouseButtonFuncType button_callback;
- if((mouse->bnstate != prev_state) && top && (button_callback = top->get_mouse_button_callback())) {
- int num_bits = sizeof mouse->bnstate * CHAR_BIT;
- for(int i=0; i<num_bits; i++) {
- int s = (mouse->bnstate >> i) & 1;
- int prev_s = (prev_state >> i) & 1;
- if(s != prev_s) {
- Rect rect = top->get_absolute_rect();
- button_callback(top, i, s, mouse->pointer_x - rect.x, mouse->pointer_y - rect.y);
- }
- }
- }
-}
-
-void get_pointer_pos(int *x, int *y)
-{
- *x = mouse->pointer_x;
- *y = mouse->pointer_y;
-}
-
-int get_button_state()
-{
- return mouse->bnstate;
-}
-
-int get_button(int bn)
-{
- if(bn < 0 || bn >= 3) {
- return 0;
- }
- return (mouse->bnstate & (1 << bn)) != 0;
-}
-
-static int read_mouse()
-{
- int rd;
- signed char state[3] = {0, 0, 0};
-
- if((rd = read(mouse->dev_fd, state, 3)) == -1) {
- fprintf(stderr, "Unable to get mouse state : %s\n", strerror(errno));
- return -1;
- }
-
- mouse->bnstate = state[0] & 7;
- mouse->pointer_x += state[1];
- mouse->pointer_y -= state[2];
-
- if(mouse->pointer_x < mouse->bounds.x) {
- mouse->pointer_x = mouse->bounds.x;
- }
-
- if(mouse->pointer_y < mouse->bounds.y) {
- mouse->pointer_y = mouse->bounds.y;
- }
-
- if(mouse->pointer_x > mouse->bounds.x + mouse->bounds.width - 1) {
- mouse->pointer_x = mouse->bounds.x + mouse->bounds.width - 1;
- }
-
- if(mouse->pointer_y > mouse->bounds.y + mouse->bounds.height - 1) {
- mouse->pointer_y = mouse->bounds.y + mouse->bounds.height - 1;
- }
-
- return 0;
-}
-#endif // WINNIE_FBDEV
projects / winnie / blobdiff