/* * vim:ts=4:sw=4:expandtab * * © 2010 Michael Stapelberg * * See LICENSE for licensing information * */ #include #include #include #include #include #include #include #include #include #include "i3lock.h" #include "xcb.h" #include "unlock_indicator.h" #include "randr.h" #include "tinyexpr.h" #include "fonts.h" /* clock stuff */ #include extern double circle_radius; extern double ring_width; #define BUTTON_RADIUS (circle_radius) #define RING_WIDTH (ring_width) #define BUTTON_SPACE (BUTTON_RADIUS + (RING_WIDTH / 2)) #define BUTTON_CENTER (BUTTON_RADIUS + (RING_WIDTH / 2)) #define BUTTON_DIAMETER (2 * BUTTON_SPACE) #define CLOCK_WIDTH 400 #define CLOCK_HEIGHT 200 /******************************************************************************* * Variables defined in i3lock.c. ******************************************************************************/ extern bool debug_mode; /* The current position in the input buffer. Useful to determine if any * characters of the password have already been entered or not. */ int input_position; /* The lock window. */ extern xcb_window_t win; /* The current resolution of the X11 root window. */ extern uint32_t last_resolution[2]; /* Whether the unlock indicator is enabled (defaults to true). */ extern bool unlock_indicator; /* List of pressed modifiers, or NULL if none are pressed. */ extern char *modifier_string; /* A Cairo surface containing the specified image (-i), if any. */ extern cairo_surface_t *img; extern cairo_surface_t *blur_img; /* Whether the image should be tiled. */ extern bool tile; /* The background color to use (in hex). */ extern char color[7]; /* indicator color options */ extern char insidevercolor[9]; extern char insidewrongcolor[9]; extern char insidecolor[9]; extern char ringvercolor[9]; extern char ringwrongcolor[9]; extern char ringcolor[9]; extern char linecolor[9]; extern char verifcolor[9]; extern char wrongcolor[9]; extern char layoutcolor[9]; extern char timecolor[9]; extern char datecolor[9]; extern char keyhlcolor[9]; extern char bshlcolor[9]; extern char separatorcolor[9]; extern int internal_line_source; extern int screen_number; extern float refresh_rate; extern bool show_clock; extern bool always_show_clock; extern bool show_indicator; extern int verif_align; extern int wrong_align; extern int time_align; extern int date_align; extern int layout_align; extern int modif_align; extern char time_format[32]; extern char date_format[32]; extern char *fonts[5]; extern char ind_x_expr[32]; extern char ind_y_expr[32]; extern char time_x_expr[32]; extern char time_y_expr[32]; extern char date_x_expr[32]; extern char date_y_expr[32]; extern char layout_x_expr[32]; extern char layout_y_expr[32]; extern char status_x_expr[32]; extern char status_y_expr[32]; extern char modif_x_expr[32]; extern char modif_y_expr[32]; extern double time_size; extern double date_size; extern double verif_size; extern double wrong_size; extern double modifier_size; extern double layout_size; extern char *verif_text; extern char *wrong_text; extern char *layout_text; /* Whether the failed attempts should be displayed. */ extern bool show_failed_attempts; /* Number of failed unlock attempts. */ extern int failed_attempts; /******************************************************************************* * Variables defined in xcb.c. ******************************************************************************/ /* The root screen, to determine the DPI. */ extern xcb_screen_t *screen; /******************************************************************************* * Local variables. ******************************************************************************/ /* time stuff */ static struct ev_periodic *time_redraw_tick; /* Cache the screen’s visual, necessary for creating a Cairo context. */ static xcb_visualtype_t *vistype; /* Maintain the current unlock/PAM state to draw the appropriate unlock * indicator. */ unlock_state_t unlock_state; auth_state_t auth_state; // color arrays rgba_t insidever16; rgba_t insidewrong16; rgba_t inside16; rgba_t ringver16; rgba_t ringwrong16; rgba_t ring16; rgba_t line16; rgba_t verif16; rgba_t wrong16; rgba_t layout16; rgba_t time16; rgba_t date16; rgba_t keyhl16; rgba_t bshl16; rgba_t sep16; rgba_t bar16; // just rgb rgb_t rgb16; // experimental bar stuff #define BAR_VERT 0 #define BAR_FLAT 1 // experimental bar stuff extern bool bar_enabled; extern double *bar_heights; extern double bar_step; extern double bar_base_height; extern double bar_periodic_step; extern double max_bar_height; extern double bar_position; extern int num_bars; extern int bar_width; extern int bar_orientation; extern char bar_base_color[9]; extern char bar_expr[32]; extern bool bar_bidirectional; extern bool bar_reversed; static cairo_font_face_t *font_faces[5] = { NULL, NULL, NULL, NULL, NULL, }; /* * Returns the scaling factor of the current screen. E.g., on a 227 DPI MacBook * Pro 13" Retina screen, the scaling factor is 227/96 = 2.36. * */ static double scaling_factor(void) { const int dpi = (double) screen->height_in_pixels * 25.4 / (double) screen->height_in_millimeters; return (dpi / 96.0); } static cairo_font_face_t *get_font_face(int which) { if (font_faces[which]) { return font_faces[which]; } const unsigned char* face_name = (const unsigned char*) fonts[which]; FcResult result; /* * Loads the default config. * On successive calls, does no work and just returns true. */ if (!FcInit()) { DEBUG("Fontconfig init failed. No text will be shown.\n"); return NULL; } /* * converts a font face name to a pattern for that face name */ FcPattern *pattern = FcNameParse(face_name); if (!pattern) { DEBUG("no sans-serif font available\n"); return NULL; } /* * Gets the default font for our pattern. (Gets the default sans-serif font face) * Without these two calls, the FcFontMatch call will fail due to FcConfigGetCurrent() * not giving it a valid/useful config. */ FcDefaultSubstitute(pattern); if (!FcConfigSubstitute(FcConfigGetCurrent(), pattern, FcMatchPattern)) { DEBUG("config sub failed?\n"); return NULL; } /* * Looks up the font pattern and does some internal RenderPrepare work, * then returns the resulting pattern that's ready for rendering. */ FcPattern *pattern_ready = FcFontMatch(FcConfigGetCurrent(), pattern, &result); FcPatternDestroy(pattern); pattern = NULL; if (!pattern_ready) { DEBUG("no sans-serif font available\n"); return NULL; } /* * Passes the given pattern into cairo, which loads it into a cairo freetype font face. * Increment its reference count and cache it. */ cairo_font_face_t *face = cairo_ft_font_face_create_for_pattern(pattern_ready); FcPatternDestroy(pattern_ready); font_faces[which] = cairo_font_face_reference(face); return face; } /* * Draws the given text onto the cairo context */ static void draw_text(cairo_t *ctx, text_t text) { if (!text.show) return; cairo_text_extents_t extents; cairo_set_font_face(ctx, text.font); cairo_set_font_size(ctx, text.size); cairo_text_extents(ctx, text.str, &extents); double x; switch(text.align) { case 1: x = text.x; break; case 2: x= text.x - (extents.width + extents.x_bearing); break; case 0: default: x = text.x - ((extents.width / 2) + (extents.x_bearing / 2)); break; } cairo_set_source_rgba(ctx, text.color.red, text.color.green, text.color.blue, text.color.alpha); cairo_move_to(ctx, x, text.y); cairo_show_text(ctx, text.str); cairo_stroke(ctx); } static void draw_bar(cairo_t *ctx, double x, double y, double bar_offset) { // oh boy, here we go! // TODO: get this to play nicely with multiple monitors // ideally it'd intelligently span both monitors double width, height; double back_x = 0, back_y = 0, back_x2 = 0, back_y2 = 0, back_width = 0, back_height = 0; for(int i = 0; i < num_bars; ++i) { double cur_bar_height = bar_heights[i]; if (cur_bar_height > 0) { if (unlock_state == STATE_BACKSPACE_ACTIVE) { cairo_set_source_rgba(ctx, bshl16.red, bshl16.green, bshl16.blue, bshl16.alpha); } else { cairo_set_source_rgba(ctx, keyhl16.red, keyhl16.green, keyhl16.blue, keyhl16.alpha); } } else { switch (auth_state) { case STATE_AUTH_VERIFY: case STATE_AUTH_LOCK: cairo_set_source_rgba(ctx, ringver16.red, ringver16.green, ringver16.blue, ringver16.alpha); break; case STATE_AUTH_WRONG: case STATE_I3LOCK_LOCK_FAILED: cairo_set_source_rgba(ctx, ringwrong16.red, ringwrong16.green, ringwrong16.blue, ringwrong16.alpha); break; default: cairo_set_source_rgba(ctx, bar16.red, bar16.green, bar16.blue, bar16.alpha); break; } } if (bar_orientation == BAR_VERT) { width = (cur_bar_height <= 0 ? bar_base_height : cur_bar_height); height = bar_width; x = bar_offset; y = i * bar_width; if (bar_reversed) { x -= width; } else if (bar_bidirectional) { width = (cur_bar_height <= 0 ? bar_base_height : cur_bar_height * 2); x = bar_offset - (width / 2) + (bar_base_height / 2); } } else { width = bar_width; height = (cur_bar_height <= 0 ? bar_base_height : cur_bar_height); x = i * bar_width; y = bar_offset; if (bar_reversed) { y -= height; } else if (bar_bidirectional) { height = (cur_bar_height <= 0 ? bar_base_height : cur_bar_height * 2); y = bar_offset - (height / 2) + (bar_base_height / 2); } } if (cur_bar_height < bar_base_height && cur_bar_height > 0) { if (bar_orientation == BAR_VERT) { back_x = bar_offset + cur_bar_height; back_y = y; back_width = bar_base_height - cur_bar_height; back_height = height; if (bar_reversed) { back_x = bar_offset - bar_base_height; } else if (bar_bidirectional) { back_x = bar_offset; back_y2 = y; back_width = (bar_base_height - (cur_bar_height * 2)) / 2; back_x2 = bar_offset + (cur_bar_height * 2) + back_width; } } else { back_x = x; back_y = bar_offset + cur_bar_height; back_width = width; back_height = bar_base_height - cur_bar_height; if (bar_reversed) { back_y = bar_offset - bar_base_height; } else if (bar_bidirectional) { back_x2 = x; back_y = bar_offset; back_height = (bar_base_height - (cur_bar_height * 2)) / 2; back_y2= bar_offset + (cur_bar_height * 2) + back_height; } } } cairo_rectangle(ctx, x, y, width, height); cairo_fill(ctx); switch (auth_state) { case STATE_AUTH_VERIFY: case STATE_AUTH_LOCK: cairo_set_source_rgba(ctx, ringver16.red, ringver16.green, ringver16.blue, ringver16.alpha); break; case STATE_AUTH_WRONG: case STATE_I3LOCK_LOCK_FAILED: cairo_set_source_rgba(ctx, ringwrong16.red, ringwrong16.green, ringwrong16.blue, ringwrong16.alpha); break; default: cairo_set_source_rgba(ctx, bar16.red, bar16.green, bar16.blue, bar16.alpha); break; } if (cur_bar_height > 0 && cur_bar_height < bar_base_height && ((bar_bidirectional && ((cur_bar_height * 2) < bar_base_height)) || (!bar_bidirectional && (cur_bar_height < bar_base_height)))) { cairo_rectangle(ctx, back_x, back_y, back_width, back_height); cairo_fill(ctx); if (bar_bidirectional) { cairo_rectangle(ctx, back_x2, back_y2, back_width, back_height); cairo_fill(ctx); } } } for(int i = 0; i < num_bars; ++i) { if (bar_heights[i] > 0) bar_heights[i] -= bar_periodic_step; } } static void draw_indic(cairo_t *ctx, double ind_x, double ind_y) { if (unlock_indicator && (unlock_state >= STATE_KEY_PRESSED || auth_state > STATE_AUTH_IDLE || show_indicator)) { cairo_scale(ctx, scaling_factor(), scaling_factor()); /* Draw a (centered) circle with transparent background. */ cairo_set_line_width(ctx, RING_WIDTH); cairo_arc(ctx, ind_x, ind_y, BUTTON_RADIUS, 0, 2 * M_PI); /* Use the appropriate color for the different PAM states * (currently verifying, wrong password, or default) */ switch (auth_state) { case STATE_AUTH_VERIFY: case STATE_AUTH_LOCK: cairo_set_source_rgba(ctx, insidever16.red, insidever16.green, insidever16.blue, insidever16.alpha); break; case STATE_AUTH_WRONG: case STATE_I3LOCK_LOCK_FAILED: cairo_set_source_rgba(ctx, insidewrong16.red, insidewrong16.green, insidewrong16.blue, insidewrong16.alpha); break; default: cairo_set_source_rgba(ctx, inside16.red, inside16.green, inside16.blue, inside16.alpha); break; } cairo_fill_preserve(ctx); switch (auth_state) { case STATE_AUTH_VERIFY: case STATE_AUTH_LOCK: cairo_set_source_rgba(ctx, ringver16.red, ringver16.green, ringver16.blue, ringver16.alpha); if (internal_line_source == 1) { line16.red = ringver16.red; line16.green = ringver16.green; line16.blue = ringver16.blue; line16.alpha = ringver16.alpha; } break; case STATE_AUTH_WRONG: case STATE_I3LOCK_LOCK_FAILED: cairo_set_source_rgba(ctx, ringwrong16.red, ringwrong16.green, ringwrong16.blue, ringwrong16.alpha); if (internal_line_source == 1) { line16.red = ringwrong16.red; line16.green = ringwrong16.green; line16.blue = ringwrong16.blue; line16.alpha = ringwrong16.alpha; } break; case STATE_AUTH_IDLE: cairo_set_source_rgba(ctx, ring16.red, ring16.green, ring16.blue, ring16.alpha); if (internal_line_source == 1) { line16.red = ring16.red; line16.green = ring16.green; line16.blue = ring16.blue; line16.alpha = ring16.alpha; } break; } cairo_stroke(ctx); /* Draw an inner separator line. */ if (internal_line_source != 2) { //pretty sure this only needs drawn if it's being drawn over the inside? cairo_set_source_rgba(ctx, line16.red, line16.green, line16.blue, line16.alpha); cairo_set_line_width(ctx, 2.0); cairo_arc(ctx, ind_x, ind_y, BUTTON_RADIUS - 5, 0, 2 * M_PI); cairo_stroke(ctx); } if (unlock_state == STATE_KEY_ACTIVE || unlock_state == STATE_BACKSPACE_ACTIVE) { cairo_set_line_width(ctx, RING_WIDTH); cairo_new_sub_path(ctx); double highlight_start = (rand() % (int)(2 * M_PI * 100)) / 100.0; cairo_arc(ctx, ind_x, ind_y, BUTTON_RADIUS, highlight_start, highlight_start + (M_PI / 3.0)); if (unlock_state == STATE_KEY_ACTIVE) { /* For normal keys, we use a lighter green. */ cairo_set_source_rgba(ctx, keyhl16.red, keyhl16.green, keyhl16.blue, keyhl16.alpha); } else { /* For backspace, we use red. */ cairo_set_source_rgba(ctx, bshl16.red, bshl16.green, bshl16.blue, bshl16.alpha); } cairo_stroke(ctx); /* Draw two little separators for the highlighted part of the * unlock indicator. */ cairo_set_source_rgba(ctx, sep16.red, sep16.green, sep16.blue, sep16.alpha); cairo_arc(ctx, ind_x, ind_y, BUTTON_RADIUS, highlight_start, highlight_start + (M_PI / 128.0)); cairo_stroke(ctx); cairo_arc(ctx, ind_x, ind_y, BUTTON_RADIUS, (highlight_start + (M_PI / 3.0)) - (M_PI / 128.0), highlight_start + (M_PI / 3.0)); cairo_stroke(ctx); } } } /* * Initialize all the color arrays once. * Called once after options are parsed. */ /* colorstring: 8-character RGBA string ("ff0000ff", "00000000", "ffffffff", etc) colorstring16: array of 4 integers (r, g, b, a). MAKE_COLORGROUPS(colorstring, colorstring16) => char colorstring_tmparr[4][3] = {{colorstring[0], colorstring[1], '\0'}, {colorstring[2], colorstring[3], '\0'}, {colorstring[4], colorstring[5], '\0'}, {colorstring[6], colorstring[7], '\0'}}; uint32_t colorstring16[4] = {(strtol(colorstring_tmparr[0], NULL, 16)), (strtol(colorstring_tmparr[1], NULL, 16)), (strtol(colorstring_tmparr[2], NULL, 16)), (strtol(colorstring_tmparr[3], NULL, 16))}; */ static void set_color(char* dest, const char* src, int offset) { dest[0] = src[offset]; dest[1] = src[offset + 1]; dest[2] = '\0'; } static void colorgen(rgba_str_t* tmp, const char* src, rgba_t* dest) { set_color(tmp->red, src, 0); set_color(tmp->green, src, 2); set_color(tmp->blue, src, 4); set_color(tmp->alpha, src, 6); dest->red = strtol(tmp->red, NULL, 16) / 255.0; dest->green = strtol(tmp->green, NULL, 16) / 255.0; dest->blue = strtol(tmp->blue, NULL, 16) / 255.0; dest->alpha = strtol(tmp->alpha, NULL, 16) / 255.0; } static void colorgen_rgb(rgb_str_t* tmp, const char* src, rgb_t* dest) { set_color(tmp->red, src, 0); set_color(tmp->green, src, 2); set_color(tmp->blue, src, 4); dest->red = strtol(tmp->red, NULL, 16) / 255.0; dest->green = strtol(tmp->green, NULL, 16) / 255.0; dest->blue = strtol(tmp->blue, NULL, 16) / 255.0; } void init_colors_once(void) { rgba_str_t tmp; rgb_str_t tmp_rgb; /* build indicator color arrays */ colorgen(&tmp, insidevercolor, &insidever16); colorgen(&tmp, insidewrongcolor, &insidewrong16); colorgen(&tmp, insidecolor, &inside16); colorgen(&tmp, ringvercolor, &ringver16); colorgen(&tmp, ringwrongcolor, &ringwrong16); colorgen(&tmp, ringcolor, &ring16); colorgen(&tmp, linecolor, &line16); colorgen(&tmp, verifcolor, &verif16); colorgen(&tmp, wrongcolor, &wrong16); colorgen(&tmp, layoutcolor, &layout16); colorgen(&tmp, timecolor, &time16); colorgen(&tmp, datecolor, &date16); colorgen(&tmp, keyhlcolor, &keyhl16); colorgen(&tmp, bshlcolor, &bshl16); colorgen(&tmp, separatorcolor, &sep16); colorgen(&tmp, bar_base_color, &bar16); colorgen_rgb(&tmp_rgb, color, &rgb16); } // init_fonts_once() ? /* * Draws global image with fill color onto a pixmap with the given * resolution and returns it. * */ xcb_pixmap_t draw_image(uint32_t *resolution) { xcb_pixmap_t bg_pixmap = XCB_NONE; int button_diameter_physical = ceil(scaling_factor() * BUTTON_DIAMETER); DEBUG("scaling_factor is %.f, physical diameter is %d px\n", scaling_factor(), button_diameter_physical); if (!vistype) vistype = get_root_visual_type(screen); bg_pixmap = create_bg_pixmap(conn, screen, resolution, color); /* Initialize cairo: Create one in-memory surface to render the unlock * indicator on, create one XCB surface to actually draw (one or more, * depending on the amount of screens) unlock indicators on. * create two more surfaces for time and date display */ cairo_surface_t *output = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, resolution[0], resolution[1]); cairo_t *ctx = cairo_create(output); // cairo_set_font_face(ctx, get_font_face(0)); cairo_surface_t *xcb_output = cairo_xcb_surface_create(conn, bg_pixmap, vistype, resolution[0], resolution[1]); cairo_t *xcb_ctx = cairo_create(xcb_output); if (blur_img || img) { if (blur_img) { cairo_set_source_surface(xcb_ctx, blur_img, 0, 0); cairo_paint(xcb_ctx); } else { // img can no longer be non-NULL if blur_img is not null if (!tile) { cairo_set_source_surface(xcb_ctx, img, 0, 0); cairo_paint(xcb_ctx); } else { /* create a pattern and fill a rectangle as big as the screen */ cairo_pattern_t *pattern; pattern = cairo_pattern_create_for_surface(img); cairo_set_source(xcb_ctx, pattern); cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT); cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]); cairo_fill(xcb_ctx); cairo_pattern_destroy(pattern); } } } else { cairo_set_source_rgb(xcb_ctx, rgb16.red, rgb16.green, rgb16.blue); cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]); cairo_fill(xcb_ctx); } /* * gen text * calc vars * process if keystroke or not * draw indicator * draw text */ // generate all the text to render text_t status_text; status_text.show = false; status_text.font = NULL; text_t mod_text; mod_text.show = false; mod_text.font = NULL; text_t keylayout_text; keylayout_text.show = false; keylayout_text.font = NULL; text_t time_text; time_text.show = false; time_text.font = NULL; text_t date_text; date_text.show = false; date_text.font = NULL; if (unlock_indicator && (unlock_state >= STATE_KEY_PRESSED || auth_state > STATE_AUTH_IDLE || show_indicator)) { switch (auth_state) { case STATE_AUTH_VERIFY: status_text.show = true; strncpy(status_text.str, verif_text, sizeof(status_text.str)); status_text.font = get_font_face(VERIF_FONT); status_text.color = verif16; status_text.size = verif_size; status_text.align = verif_align; break; case STATE_AUTH_LOCK: status_text.show = true; strncpy(status_text.str, "locking…", sizeof(status_text.str)); status_text.font = get_font_face(VERIF_FONT); status_text.color = verif16; status_text.size = verif_size; status_text.align = verif_align; break; case STATE_AUTH_WRONG: status_text.show = true; strncpy(status_text.str, wrong_text, sizeof(status_text.str)); status_text.font = get_font_face(WRONG_FONT); status_text.color = wrong16; status_text.size = wrong_size; status_text.align = wrong_align; break; case STATE_I3LOCK_LOCK_FAILED: status_text.show = true; strncpy(status_text.str, "lock failed!", sizeof(status_text.str)); status_text.font = get_font_face(WRONG_FONT); status_text.color = wrong16; status_text.size = wrong_size; status_text.align = wrong_align; break; default: if (show_failed_attempts && failed_attempts > 0) { status_text.show = true; status_text.font = get_font_face(WRONG_FONT); status_text.color = wrong16; status_text.size = wrong_size; status_text.align = wrong_align; // TODO: variable for this status_text.size = 32.0; if (failed_attempts > 999) { strncpy(status_text.str, "> 999", sizeof(status_text.str)); } else { snprintf(status_text.str, sizeof(status_text.str), "%d", failed_attempts); } } break; } } if (modifier_string) { mod_text.show = true; strncpy(mod_text.str, modifier_string, sizeof(mod_text.str)); mod_text.size = modifier_size; mod_text.font = get_font_face(WRONG_FONT); mod_text.align = modif_align; mod_text.color = wrong16; } if (layout_text) { keylayout_text.show = true; strncpy(keylayout_text.str, layout_text, sizeof(mod_text.str)); keylayout_text.size = layout_size; keylayout_text.font = get_font_face(LAYOUT_FONT); keylayout_text.color = layout16; keylayout_text.align = layout_align; } if (show_clock && (!status_text.show || always_show_clock)) { time_t rawtime; struct tm* timeinfo; time(&rawtime); timeinfo = localtime(&rawtime); strftime(time_text.str, 40, time_format, timeinfo); if (*time_text.str) { time_text.show = true; time_text.size = time_size; time_text.color = time16; time_text.font = get_font_face(TIME_FONT); time_text.align = time_align; } strftime(date_text.str, 40, date_format, timeinfo); if (*date_text.str) { date_text.show = true; date_text.size = date_size; date_text.color = date16; date_text.font = get_font_face(DATE_FONT); date_text.align = date_align; } } // initialize positioning vars double ix, iy; double x, y; double screen_x, screen_y; double w, h; double tx = 0; double ty = 0; double dx = 0; double dy = 0; double radius = BUTTON_RADIUS; double bar_offset = 0; int te_x_err; int te_y_err; // variable mapping for evaluating the clock position expression te_variable vars[] = { {"w", &w}, {"h", &h}, {"x", &screen_x}, {"y", &screen_y}, {"ix", &ix}, {"iy", &iy}, {"tx", &tx}, {"ty", &ty}, {"dx", &dx}, {"dy", &dy}, {"r", &radius} }; #define NUM_VARS 11 te_expr *te_ind_x_expr = te_compile(ind_x_expr, vars, NUM_VARS, &te_x_err); te_expr *te_ind_y_expr = te_compile(ind_y_expr, vars, NUM_VARS, &te_y_err); te_expr *te_time_x_expr = te_compile(time_x_expr, vars, NUM_VARS, &te_x_err); te_expr *te_time_y_expr = te_compile(time_y_expr, vars, NUM_VARS, &te_y_err); te_expr *te_date_x_expr = te_compile(date_x_expr, vars, NUM_VARS, &te_x_err); te_expr *te_date_y_expr = te_compile(date_y_expr, vars, NUM_VARS, &te_y_err); te_expr *te_layout_x_expr = te_compile(layout_x_expr, vars, NUM_VARS, &te_x_err); te_expr *te_layout_y_expr = te_compile(layout_y_expr, vars, NUM_VARS, &te_y_err); te_expr *te_status_x_expr = te_compile(status_x_expr, vars, NUM_VARS, &te_x_err); te_expr *te_status_y_expr = te_compile(status_y_expr, vars, NUM_VARS, &te_y_err); te_expr *te_modif_x_expr = te_compile(modif_x_expr, vars, NUM_VARS, &te_x_err); te_expr *te_modif_y_expr = te_compile(modif_y_expr, vars, NUM_VARS, &te_y_err); te_expr *te_bar_expr = te_compile(bar_expr, vars, NUM_VARS, &te_x_err); double time_x = 0, time_y = 0, date_x = 0, date_y = 0, mod_x = 0, mod_y = 0, layout_x = 0, layout_y = 0, status_x = 0, status_y = 0; if (screen_number < 0 || !(screen_number < xr_screens)) { screen_number = 0; } if (xr_screens > 0 && !bar_enabled) { w = xr_resolutions[screen_number].width; h = xr_resolutions[screen_number].height; screen_x = xr_resolutions[screen_number].x; screen_y = xr_resolutions[screen_number].y; if (te_ind_x_expr && te_ind_y_expr) { ix = 0; iy = 0; ix = te_eval(te_ind_x_expr); iy = te_eval(te_ind_y_expr); } else { ix = xr_resolutions[screen_number].x + (xr_resolutions[screen_number].width / 2); iy = xr_resolutions[screen_number].y + (xr_resolutions[screen_number].height / 2); } x = ix - (button_diameter_physical / 2); y = iy - (button_diameter_physical / 2); tx = 0; ty = 0; tx = te_eval(te_time_x_expr); ty = te_eval(te_time_y_expr); time_x = tx; time_y = ty; dx = te_eval(te_date_x_expr); dy = te_eval(te_date_y_expr); date_x = dx; date_y = dy; layout_x = te_eval(te_layout_x_expr); layout_y = te_eval(te_layout_y_expr); status_x = te_eval(te_status_x_expr); status_y = te_eval(te_status_y_expr); mod_x = te_eval(te_modif_x_expr); mod_y = te_eval(te_modif_y_expr); } else if (!bar_enabled) { /* We have no information about the screen sizes/positions, so we just * place the unlock indicator in the middle of the X root window and * hope for the best. */ w = last_resolution[0]; h = last_resolution[1]; ix = last_resolution[0] / 2; iy = last_resolution[1] / 2; x = ix - (button_diameter_physical / 2); y = iy - (button_diameter_physical / 2); if (te_time_x_expr && te_time_y_expr) { tx = te_eval(te_time_x_expr); ty = te_eval(te_time_y_expr); time_x = tx; time_y = ty; dx = te_eval(te_date_x_expr); dy = te_eval(te_date_y_expr); date_x = dx; date_y = dy; layout_x = te_eval(te_layout_x_expr); layout_y = te_eval(te_layout_y_expr); status_x = te_eval(te_status_x_expr); status_y = te_eval(te_status_y_expr); mod_x = te_eval(te_modif_x_expr); mod_y = te_eval(te_modif_y_expr); } } else { w = xr_resolutions[screen_number].width; h = xr_resolutions[screen_number].height; ix = w / 2; iy = h / 2; bar_offset = te_eval(te_bar_expr); tx = 0; ty = 0; tx = te_eval(te_time_x_expr); ty = te_eval(te_time_y_expr); time_x = tx; time_y = ty; dx = te_eval(te_date_x_expr); dy = te_eval(te_date_y_expr); date_x = dx; date_y = dy; layout_x = te_eval(te_layout_x_expr); layout_y = te_eval(te_layout_y_expr); status_x = te_eval(te_status_x_expr); status_y = te_eval(te_status_y_expr); mod_x = te_eval(te_modif_x_expr); mod_y = te_eval(te_modif_y_expr); } te_free(te_ind_x_expr); te_free(te_ind_y_expr); te_free(te_time_x_expr); te_free(te_time_y_expr); te_free(te_date_x_expr); te_free(te_date_y_expr); te_free(te_layout_x_expr); te_free(te_layout_y_expr); te_free(te_status_x_expr); te_free(te_status_y_expr); te_free(te_modif_x_expr); te_free(te_modif_y_expr); te_free(te_bar_expr); status_text.x = status_x; status_text.y = status_y; keylayout_text.x = layout_x; keylayout_text.y = layout_y; mod_text.x = mod_x; mod_text.y = mod_y; time_text.x = time_x; time_text.y = time_y; date_text.x = date_x; date_text.y = date_y; // indicator stuff if (!bar_enabled) { draw_indic(ctx, ix, iy); } else { if (unlock_state == STATE_KEY_ACTIVE || unlock_state == STATE_BACKSPACE_ACTIVE) { // note: might be biased to cause more hits on lower indices // maybe see about doing ((double) rand() / RAND_MAX) * num_bars int index = rand() % num_bars; bar_heights[index] = max_bar_height; for(int i = 0; i < ((max_bar_height / bar_step) + 1); ++i) { int low_ind = index - i; while (low_ind < 0) { low_ind += num_bars; } int high_ind = (index + i) % num_bars; int tmp_height = max_bar_height - (bar_step * i); if (tmp_height < 0) tmp_height = 0; if (bar_heights[low_ind] < tmp_height) bar_heights[low_ind] = tmp_height; if (bar_heights[high_ind] < tmp_height) bar_heights[high_ind] = tmp_height; if (tmp_height == 0) break; } } draw_bar(ctx, x, y, bar_offset); } draw_text(ctx, status_text); draw_text(ctx, keylayout_text); draw_text(ctx, mod_text); draw_text(ctx, time_text); draw_text(ctx, date_text); cairo_set_source_surface(xcb_ctx, output, 0, 0); cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]); cairo_fill(xcb_ctx); cairo_surface_destroy(xcb_output); cairo_surface_destroy(output); cairo_destroy(ctx); cairo_destroy(xcb_ctx); return bg_pixmap; } /* * Calls draw_image on a new pixmap and swaps that with the current pixmap * */ void redraw_screen(void) { DEBUG("redraw_screen(unlock_state = %d, auth_state = %d) @ [%lu]\n", unlock_state, auth_state, (unsigned long)time(NULL)); xcb_pixmap_t bg_pixmap = draw_image(last_resolution); xcb_change_window_attributes(conn, win, XCB_CW_BACK_PIXMAP, (uint32_t[1]){bg_pixmap}); /* XXX: Possible optimization: Only update the area in the middle of the * screen instead of the whole screen. */ xcb_clear_area(conn, 0, win, 0, 0, last_resolution[0], last_resolution[1]); xcb_free_pixmap(conn, bg_pixmap); xcb_flush(conn); } /* * Hides the unlock indicator completely when there is no content in the * password buffer. * */ void clear_indicator(void) { if (input_position == 0) { unlock_state = STATE_STARTED; } else unlock_state = STATE_KEY_PRESSED; redraw_screen(); } void* start_time_redraw_tick_pthread(void* arg) { struct timespec *ts = (struct timespec *) arg; while(1) { nanosleep(ts, NULL); redraw_screen(); } return NULL; } static void time_redraw_cb(struct ev_loop *loop, ev_periodic *w, int revents) { redraw_screen(); } void start_time_redraw_tick(struct ev_loop* main_loop) { if (time_redraw_tick) { ev_periodic_set(time_redraw_tick, 0., refresh_rate, 0); ev_periodic_again(main_loop, time_redraw_tick); } else { if (!(time_redraw_tick = calloc(sizeof(struct ev_periodic), 1))) { return; } ev_periodic_init(time_redraw_tick, time_redraw_cb, 0., refresh_rate, 0); ev_periodic_start(main_loop, time_redraw_tick); } }