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i3lock-color
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i3lock-color/unlock_indicator.c

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/*
* vim:ts=4:sw=4:expandtab
*
* © 2010 Michael Stapelberg
*
* See LICENSE for licensing information
*
*/
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <xcb/xcb.h>
#include <ev.h>
#include <cairo.h>
#include <cairo/cairo-xcb.h>
#include "i3lock.h"
#include "xcb.h"
#include "unlock_indicator.h"
#include "randr.h"
#include "tinyexpr.h"
/* clock stuff */
#include <time.h>
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 textcolor[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 time_align;
extern int date_align;
extern int layout_align;
extern char time_format[32];
extern char date_format[32];
extern char time_font[32];
extern char date_font[32];
extern char status_font[32];
extern char layout_font[32];
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 double time_size;
extern double date_size;
extern double text_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 text16;
rgba_t layout16;
rgba_t time16;
rgba_t date16;
rgba_t keyhl16;
rgba_t bshl16;
rgba_t sep16;
// just rgb
rgb_t rgb16;
/*
* 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))};
*/
void set_color(char* dest, const char* src, int offset) {
dest[0] = src[offset];
dest[1] = src[offset + 1];
dest[2] = '\0';
}
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;
}
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, textcolor, &text16);
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_rgb(&tmp_rgb, color, &rgb16);
}
/*
* 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);
}
/*
* 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);
int clock_width_physical = ceil(scaling_factor() * CLOCK_WIDTH);
int clock_height_physical = ceil(scaling_factor() * CLOCK_HEIGHT);
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, button_diameter_physical, button_diameter_physical);
cairo_t *ctx = cairo_create(output);
cairo_surface_t *time_output = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, clock_width_physical, clock_height_physical);
cairo_t *time_ctx = cairo_create(time_output);
cairo_surface_t *date_output = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, clock_width_physical, clock_height_physical);
cairo_t *date_ctx = cairo_create(date_output);
cairo_surface_t *layout_output = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, clock_width_physical, clock_height_physical);
cairo_t *layout_ctx = cairo_create(layout_output);
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);
}
if (img) {
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);
}
/* https://github.com/ravinrabbid/i3lock-clock/commit/0de3a411fa5249c3a4822612c2d6c476389a1297 */
time_t rawtime;
struct tm* timeinfo;
bool unlock_indic_text = false;
time(&rawtime);
timeinfo = localtime(&rawtime);
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,
BUTTON_CENTER /* x */,
BUTTON_CENTER /* y */,
BUTTON_RADIUS /* radius */,
0 /* start */,
2 * M_PI /* end */);
/* 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,
BUTTON_CENTER /* x */,
BUTTON_CENTER /* y */,
BUTTON_RADIUS - 5 /* radius */,
0,
2 * M_PI);
cairo_stroke(ctx);
}
cairo_set_line_width(ctx, 10.0);
/* Display a (centered) text of the current PAM state. */
char *text = NULL;
/* We don't want to show more than a 3-digit number. */
char buf[4];
cairo_set_source_rgba(ctx, text16.red, text16.green, text16.blue, text16.alpha);
cairo_select_font_face(ctx, status_font, CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size(ctx, text_size);
switch (auth_state) {
case STATE_AUTH_VERIFY:
text = verif_text;
break;
case STATE_AUTH_LOCK:
text = "locking…";
break;
case STATE_AUTH_WRONG:
text = wrong_text;
break;
case STATE_I3LOCK_LOCK_FAILED:
text = "lock failed!";
break;
default:
if (show_failed_attempts && failed_attempts > 0) {
if (failed_attempts > 999) {
text = "> 999";
} else {
snprintf(buf, sizeof(buf), "%d", failed_attempts);
text = buf;
}
cairo_set_font_size(ctx, 32.0);
}
break;
}
if (text) {
unlock_indic_text = true;
cairo_text_extents_t extents;
double x, y;
cairo_text_extents(ctx, text, &extents);
x = BUTTON_CENTER - ((extents.width / 2) + extents.x_bearing);
y = BUTTON_CENTER - ((extents.height / 2) + extents.y_bearing);
cairo_move_to(ctx, x, y);
cairo_show_text(ctx, text);
cairo_close_path(ctx);
}
if (auth_state == STATE_AUTH_WRONG && (modifier_string != NULL)) {
cairo_text_extents_t extents;
double x, y;
cairo_set_font_size(ctx, modifier_size);
cairo_text_extents(ctx, modifier_string, &extents);
x = BUTTON_CENTER - ((extents.width / 2) + extents.x_bearing);
y = BUTTON_CENTER - ((extents.height / 2) + extents.y_bearing) + 28.0;
cairo_move_to(ctx, x, y);
cairo_show_text(ctx, modifier_string);
cairo_close_path(ctx);
}
/* After the user pressed any valid key or the backspace key, we
* highlight a random part of the unlock indicator to confirm this
* keypress. */
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,
BUTTON_CENTER /* x */,
BUTTON_CENTER /* y */,
BUTTON_RADIUS /* radius */,
highlight_start,
highlight_start + (M_PI / 3.0));
if (unlock_state == STATE_KEY_ACTIVE) {
/* For normal keys, we use a lighter green. */ //lol no
cairo_set_source_rgba(ctx, keyhl16.red, keyhl16.green, keyhl16.blue, keyhl16.alpha);
} else {
/* For backspace, we use red. */ //lol no
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,
BUTTON_CENTER /* x */,
BUTTON_CENTER /* y */,
BUTTON_RADIUS /* radius */,
highlight_start /* start */,
highlight_start + (M_PI / 128.0) /* end */);
cairo_stroke(ctx);
cairo_arc(ctx,
BUTTON_CENTER /* x */,
BUTTON_CENTER /* y */,
BUTTON_RADIUS /* radius */,
(highlight_start + (M_PI / 3.0)) - (M_PI / 128.0) /* start */,
highlight_start + (M_PI / 3.0) /* end */);
cairo_stroke(ctx);
}
}
if (show_clock && (!unlock_indic_text || always_show_clock)) {
char *text = NULL;
char *date = NULL;
char time_text[40] = {0};
char date_text[40] = {0};
// common vars for each if block
double x, y;
cairo_text_extents_t extents;
strftime(time_text, 40, time_format, timeinfo);
strftime(date_text, 40, date_format, timeinfo);
text = time_text;
date = date_text;
if (text) {
cairo_set_font_size(time_ctx, time_size);
cairo_select_font_face(time_ctx, time_font, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_source_rgba(time_ctx, time16.red, time16.green, time16.blue, time16.alpha);
cairo_text_extents(time_ctx, text, &extents);
switch(time_align) {
case 1:
x = 0;
break;
case 2:
x = CLOCK_WIDTH - ((extents.width) + extents.x_bearing);
break;
case 0:
default:
x = CLOCK_WIDTH/2 - ((extents.width / 2) + extents.x_bearing);
break;
}
y = CLOCK_HEIGHT/2;
cairo_move_to(time_ctx, x, y);
cairo_show_text(time_ctx, text);
cairo_close_path(time_ctx);
}
if (date) {
cairo_select_font_face(date_ctx, date_font, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_source_rgba(date_ctx, date16.red, date16.green, date16.blue, date16.alpha);
cairo_set_font_size(date_ctx, date_size);
cairo_text_extents(date_ctx, date, &extents);
switch(date_align) {
case 1:
x = 0;
break;
case 2:
x = CLOCK_WIDTH - ((extents.width) + extents.x_bearing);
break;
case 0:
default:
x = CLOCK_WIDTH/2 - ((extents.width / 2) + extents.x_bearing);
break;
}
y = CLOCK_HEIGHT/2;
cairo_move_to(date_ctx, x, y);
cairo_show_text(date_ctx, date);
cairo_close_path(date_ctx);
}
if (layout_text) {
cairo_select_font_face(layout_ctx, layout_font, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_source_rgba(layout_ctx, layout16.red, layout16.green, layout16.blue, layout16.alpha);
cairo_set_font_size(layout_ctx, layout_size);
cairo_text_extents(layout_ctx, layout_text, &extents);
switch(layout_align) {
case 1:
x = 0;
break;
case 2:
x = CLOCK_WIDTH - ((extents.width) + extents.x_bearing);
break;
case 0:
default:
x = CLOCK_WIDTH/2 - ((extents.width / 2) + extents.x_bearing);
break;
}
y = CLOCK_HEIGHT/2;
cairo_move_to(layout_ctx, x, y);
cairo_show_text(layout_ctx, layout_text);
cairo_close_path(layout_ctx);
}
}
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 clock_width = CLOCK_WIDTH;
double clock_height = CLOCK_HEIGHT;
double radius = BUTTON_RADIUS;
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},
{"cw", &clock_width}, {"ch", &clock_height}, // pretty sure this is fine.
{"r", &radius}
};
#define NUM_VARS 13
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);
if (xr_screens > 0) {
/* Composite the unlock indicator in the middle of each screen. */
// excuse me, just gonna hack something in right here
if (screen_number != -1 && screen_number < xr_screens) {
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);
cairo_set_source_surface(xcb_ctx, output, x, y);
cairo_rectangle(xcb_ctx, x, y, button_diameter_physical, button_diameter_physical);
cairo_fill(xcb_ctx);
if (te_time_x_expr && te_time_y_expr) {
tx = 0;
ty = 0;
tx = te_eval(te_time_x_expr);
ty = te_eval(te_time_y_expr);
double time_x = tx;
double time_y = ty;
dx = te_eval(te_date_x_expr);
dy = te_eval(te_date_y_expr);
double date_x = dx;
double date_y = dy;
double layout_x = te_eval(te_layout_x_expr);
double layout_y = te_eval(te_layout_y_expr);
cairo_set_source_surface(xcb_ctx, time_output, time_x, time_y);
cairo_rectangle(xcb_ctx, time_x, time_y, CLOCK_WIDTH, CLOCK_HEIGHT);
cairo_fill(xcb_ctx);
cairo_set_source_surface(xcb_ctx, date_output, date_x, date_y);
cairo_rectangle(xcb_ctx, date_x, date_y, CLOCK_WIDTH, CLOCK_HEIGHT);
cairo_fill(xcb_ctx);
cairo_set_source_surface(xcb_ctx, layout_output, layout_x, layout_y);
cairo_rectangle(xcb_ctx, layout_x, layout_y, CLOCK_WIDTH, CLOCK_HEIGHT);
cairo_fill(xcb_ctx);
}
} else {
for (int screen = 0; screen < xr_screens; screen++) {
w = xr_resolutions[screen].width;
h = xr_resolutions[screen].height;
screen_x = xr_resolutions[screen].x;
screen_y = xr_resolutions[screen].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].x + (xr_resolutions[screen].width / 2);
iy = xr_resolutions[screen].y + (xr_resolutions[screen].height / 2);
}
x = ix - (button_diameter_physical / 2);
y = iy - (button_diameter_physical / 2);
cairo_set_source_surface(xcb_ctx, output, x, y);
cairo_rectangle(xcb_ctx, x, y, button_diameter_physical, button_diameter_physical);
cairo_fill(xcb_ctx);
if (te_time_x_expr && te_time_y_expr) {
tx = 0;
ty = 0;
tx = te_eval(te_time_x_expr);
ty = te_eval(te_time_y_expr);
double time_x = tx;
double time_y = ty;
dx = te_eval(te_date_x_expr);
dy = te_eval(te_date_y_expr);
double date_x = dx;
double date_y = dy;
double layout_x = te_eval(te_layout_x_expr);
double layout_y = te_eval(te_layout_y_expr);
cairo_set_source_surface(xcb_ctx, time_output, time_x, time_y);
cairo_rectangle(xcb_ctx, time_x, time_y, CLOCK_WIDTH, CLOCK_HEIGHT);
cairo_fill(xcb_ctx);
cairo_set_source_surface(xcb_ctx, date_output, date_x, date_y);
cairo_rectangle(xcb_ctx, date_x, date_y, CLOCK_WIDTH, CLOCK_HEIGHT);
cairo_fill(xcb_ctx);
cairo_set_source_surface(xcb_ctx, layout_output, layout_x, layout_y);
cairo_rectangle(xcb_ctx, layout_x, layout_y, CLOCK_WIDTH, CLOCK_HEIGHT);
cairo_fill(xcb_ctx);
} else {
DEBUG("error codes for exprs are %d, %d\n", te_x_err, te_y_err);
DEBUG("exprs: %s, %s\n", time_x_expr, time_y_expr);
}
}
}
} else {
/* 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);
cairo_set_source_surface(xcb_ctx, output, x, y);
cairo_rectangle(xcb_ctx, x, y, button_diameter_physical, button_diameter_physical);
cairo_fill(xcb_ctx);
if (te_time_x_expr && te_time_y_expr) {
tx = te_eval(te_time_x_expr);
ty = te_eval(te_time_y_expr);
double time_x = tx;
double time_y = ty;
dx = te_eval(te_date_x_expr);
dy = te_eval(te_date_y_expr);
double date_x = dx;
double date_y = dy;
double layout_x = te_eval(te_layout_x_expr);
double layout_y = te_eval(te_layout_y_expr);
cairo_set_source_surface(xcb_ctx, time_output, time_x, time_y);
cairo_rectangle(xcb_ctx, time_x, time_y, CLOCK_WIDTH, CLOCK_HEIGHT);
cairo_fill(xcb_ctx);
cairo_set_source_surface(xcb_ctx, date_output, date_x, date_y);
cairo_rectangle(xcb_ctx, date_x, date_y, CLOCK_WIDTH, CLOCK_HEIGHT);
cairo_fill(xcb_ctx);
cairo_set_source_surface(xcb_ctx, layout_output, layout_x, layout_y);
cairo_rectangle(xcb_ctx, layout_x, layout_y, CLOCK_WIDTH, CLOCK_HEIGHT);
cairo_fill(xcb_ctx);
}
}
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);
cairo_surface_destroy(xcb_output);
cairo_surface_destroy(time_output);
cairo_surface_destroy(date_output);
cairo_surface_destroy(layout_output);
cairo_surface_destroy(output);
cairo_destroy(ctx);
cairo_destroy(time_ctx);
cairo_destroy(date_ctx);
cairo_destroy(layout_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();
}
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);
}
}
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