diff options
Diffstat (limited to 'src/x.c')
| -rw-r--r-- | src/x.c | 158 |
1 files changed, 158 insertions, 0 deletions
@@ -0,0 +1,158 @@ +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <X11/keysym.h> +#include <xcb/xcb_keysyms.h> + +#include "x.h" +#include "types.h" + +Server_context_t *init_XCB_server(); +xcb_window_t create_win(Server_context_t *info); + +Server_context_t *init_XCB_server() +{ + Server_context_t *info; + + if (!(info = malloc(sizeof(Server_context_t)))) { + fprintf(stderr, "memory allocation failed.\n"); + return NULL; + } + + info->con = xcb_connect(NULL, &info->scr_nbr); + if (xcb_connection_has_error(info->con) > 0) { + fprintf(stderr, "Error opening display.\n"); + free(info); + return NULL; + } + + info->iter = xcb_setup_roots_iterator(xcb_get_setup(info->con)); + for (; info->iter.rem; --info->scr_nbr, xcb_screen_next(&info->iter)) + if (info->scr_nbr == 0) { + info->scr = info->iter.data; + break; + } + + return info; +} + +xcb_window_t create_win(Server_context_t *info) +{ + xcb_gcontext_t gc; + xcb_window_t win; + u32 vmask, vlist[2]; + + // create gc + win = info->scr->root; + gc = xcb_generate_id(info->con); + vmask = XCB_GC_FOREGROUND | + /* + XCB_GC_LINE_WIDTH | + XCB_GC_LINE_STYLE | + XCB_GC_FILL_STYLE | + XCB_GC_ARC_MODE | + */ + XCB_GC_GRAPHICS_EXPOSURES; + vlist[0] = info->scr->black_pixel; + vlist[1] = 0; + xcb_create_gc (info->con, gc, win, vmask, vlist); + + // create window + win = xcb_generate_id(info->con); + vmask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK; + vlist[0] = /* 0 */ info->scr->white_pixel; + vlist[1] = XCB_EVENT_MASK_EXPOSURE | // window is exposed, needs to be redrawn + XCB_EVENT_MASK_BUTTON_PRESS | + XCB_EVENT_MASK_BUTTON_RELEASE | + XCB_EVENT_MASK_BUTTON_1_MOTION | // mouse is dragging + XCB_EVENT_MASK_POINTER_MOTION | // mouse is moving without clicking + XCB_MOTION_NOTIFY | + XCB_EVENT_MASK_BUTTON_MOTION | + /* + XCB_MOTION_NOTIFY | + XCB_EVENT_MASK_EXPOSURE | + XCB_EVENT_MASK_BUTTON_PRESS | + XCB_EVENT_MASK_BUTTON_RELEASE; // keyboard + XCB_KEY_PRESS | + XCB_EVENT_MASK_KEY_PRESS | + */ + XCB_KEY_PRESS | + XCB_KEY_RELEASE; + + xcb_create_window(info->con, + XCB_COPY_FROM_PARENT, + win, + info->scr->root, + 0, 0, + info->scr->width_in_pixels, + info->scr->height_in_pixels, + 10, // boarder width + XCB_WINDOW_CLASS_INPUT_OUTPUT, + info->scr->root_visual, + vmask, vlist + ); + + xcb_map_window(info->con, win); + xcb_flush(info->con); + + return win; +} + +xcb_cursor_t cursor_set(xcb_connection_t *c, xcb_screen_t *scr, xcb_window_t win, u32 cid) +{ + xcb_font_t font; + xcb_cursor_t ptr; + u32 mask; + u32 value_list; + + font = xcb_generate_id(c); + xcb_open_font(c, font, strlen("cursor"), "cursor"); + ptr = xcb_generate_id(c); + xcb_create_glyph_cursor(c, + ptr, + font, font, + cid, cid, + 0, 0, 0, + 0, 0, 0); + + + mask = XCB_CW_CURSOR; + value_list = ptr; + xcb_change_window_attributes(c, win, mask, &value_list); + xcb_flush(c); + + return ptr; +} + +void cursor_die(xcb_connection_t *c, xcb_window_t win, u32 value_list) +{ + value_list = 0; + xcb_change_window_attributes(c, win, XCB_CW_CURSOR, &value_list); + // xcb_free_cursor(c, value_list); + xcb_flush(c); +} + +const char *ksym_to_str(const xcb_keysym_t *ksym) +{ + switch (*ksym) { + case XK_Escape: return "Escape"; + case XK_q: return "q"; + case XK_Q: return "Q"; + case XK_l: return "l"; + case XK_w: return "w"; + case XK_c: return "c"; + case XK_r: return "r"; + default: return NULL; + } + + return NULL; +} + +void die(xcb_key_symbols_t *sym, Server_context_t *s_info, xcb_drawable_t win) +{ + xcb_key_symbols_free(sym); + xcb_free_gc(s_info->con, win); + xcb_disconnect(s_info->con); + free(s_info); + exit(0); +} |