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draw the unlock indicator in the middle of every screen

pull/1/head
Michael Stapelberg 2012-01-04 00:10:36 +00:00
parent fd64bde0cb
commit 5e14ad0605
2 changed files with 79 additions and 51 deletions
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127
unlock_indicator.c
View File

@ -20,11 +20,12 @@
#include "xcb.h"
#include "unlock_indicator.h"
#include "xinerama.h"
#define BUTTON_RADIUS 90
#define BUTTON_SPACE (BUTTON_RADIUS + 5)
#define BUTTON_CENTER (BUTTON_RADIUS + 5)
#define BUTTON_DIAMETER (5 * BUTTON_SPACE)
#define BUTTON_DIAMETER (2 * BUTTON_SPACE)
/*******************************************************************************
* Variables defined in i3lock.c.
@ -79,51 +80,47 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
if (!vistype)
vistype = get_root_visual_type(screen);
bg_pixmap = create_bg_pixmap(conn, screen, resolution, color);
/* Initialize cairo */
cairo_surface_t *output;
output = cairo_xcb_surface_create(conn, bg_pixmap, vistype,
resolution[0], resolution[1]);
/* 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. */
cairo_surface_t *output = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, BUTTON_DIAMETER, BUTTON_DIAMETER);
cairo_t *ctx = cairo_create(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 (img) {
if (!tile) {
cairo_set_source_surface(ctx, img, 0, 0);
cairo_paint(ctx);
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(ctx, pattern);
cairo_set_source(xcb_ctx, pattern);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
cairo_rectangle(ctx, 0, 0, resolution[0], resolution[1]);
cairo_fill(ctx);
cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]);
cairo_fill(xcb_ctx);
cairo_pattern_destroy(pattern);
}
} else {
char strgroups[3][3] = {{color[0], color[1], '\0'},
{color[2], color[3], '\0'},
{color[4], color[5], '\0'}};
uint32_t rgb16[3] = {(strtol(strgroups[0], NULL, 16)),
(strtol(strgroups[1], NULL, 16)),
(strtol(strgroups[2], NULL, 16))};
cairo_set_source_rgb(xcb_ctx, rgb16[0], rgb16[1], rgb16[2]);
cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]);
cairo_fill(xcb_ctx);
}
if (unlock_state >= STATE_KEY_PRESSED && unlock_indicator) {
cairo_pattern_t *outer_pat = NULL;
outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER);
switch (pam_state) {
case STATE_PAM_VERIFY:
cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 0, 250.0/255);
cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 0, 250.0/255);
break;
case STATE_PAM_WRONG:
cairo_pattern_add_color_stop_rgb(outer_pat, 0, 255.0/250, 139.0/255, 0);
cairo_pattern_add_color_stop_rgb(outer_pat, 1, 125.0/255, 51.0/255, 0);
break;
case STATE_PAM_IDLE:
cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 125.0/255, 0);
cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 125.0/255, 0);
break;
}
/* Draw a (centered) circle with transparent background. */
cairo_set_line_width(ctx, 10.0);
cairo_arc(ctx,
(resolution[0] / 2) /* x */,
(resolution[1] / 2) /* y */,
BUTTON_CENTER /* x */,
BUTTON_CENTER /* y */,
BUTTON_RADIUS /* radius */,
0 /* start */,
2 * M_PI /* end */);
@ -142,17 +139,26 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
break;
}
cairo_fill_preserve(ctx);
cairo_set_source(ctx, outer_pat);
cairo_stroke(ctx);
cairo_pattern_destroy(outer_pat);
switch (pam_state) {
case STATE_PAM_VERIFY:
cairo_set_source_rgb(ctx, 51.0/255, 0, 250.0/255);
break;
case STATE_PAM_WRONG:
cairo_set_source_rgb(ctx, 125.0/255, 51.0/255, 0);
break;
case STATE_PAM_IDLE:
cairo_set_source_rgb(ctx, 51.0/255, 125.0/255, 0);
break;
}
cairo_stroke(ctx);
/* Draw an inner seperator line. */
cairo_set_source_rgb(ctx, 0, 0, 0);
cairo_set_line_width(ctx, 2.0);
cairo_arc(ctx,
(resolution[0] / 2) /* x */,
(resolution[1] / 2) /* y */,
BUTTON_CENTER /* x */,
BUTTON_CENTER /* y */,
BUTTON_RADIUS - 5 /* radius */,
0,
2 * M_PI);
@ -181,8 +187,8 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
cairo_set_font_size(ctx, 28.0);
cairo_text_extents(ctx, text, &extents);
x = (resolution[0] / 2.0) - ((extents.width / 2) + extents.x_bearing);
y = (resolution[1] / 2.0) - ((extents.height / 2) + extents.y_bearing);
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);
@ -196,46 +202,65 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
unlock_state == STATE_BACKSPACE_ACTIVE) {
cairo_new_sub_path(ctx);
double highlight_start = (rand() % (int)(2 * M_PI * 100)) / 100.0;
cairo_arc(ctx, resolution[0] / 2 /* x */, resolution[1] / 2 /* y */,
BUTTON_RADIUS /* radius */, highlight_start,
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. */
outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER);
cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 219.0/255, 0);
cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 219.0/255, 0);
cairo_set_source_rgb(ctx, 51.0/255, 219.0/255, 0);
} else {
/* For backspace, we use red. */
outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER);
cairo_pattern_add_color_stop_rgb(outer_pat, 0, 219.0/255, 139.0/255, 0);
cairo_pattern_add_color_stop_rgb(outer_pat, 1, 219.0/255, 51.0/255, 0);
cairo_set_source_rgb(ctx, 219.0/255, 51.0/255, 0);
}
cairo_set_source(ctx, outer_pat);
cairo_stroke(ctx);
/* Draw two little separators for the highlighted part of the
* unlock indicator. */
cairo_set_source_rgb(ctx, 0, 0, 0);
cairo_arc(ctx,
(resolution[0] / 2) /* x */,
(resolution[1] / 2) /* y */,
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,
(resolution[0] / 2) /* x */,
(resolution[1] / 2) /* y */,
BUTTON_CENTER /* x */,
BUTTON_CENTER /* y */,
BUTTON_RADIUS /* radius */,
highlight_start + (M_PI / 3.0) /* start */,
(highlight_start + (M_PI / 3.0)) + (M_PI / 128.0) /* end */);
cairo_stroke(ctx);
cairo_pattern_destroy(outer_pat);
}
}
if (xr_screens > 0) {
/* Composite the unlock indicator in the middle of each screen. */
for (int screen = 0; screen < xr_screens; screen++) {
int x = (xr_resolutions[screen].x + ((xr_resolutions[screen].width / 2) - (BUTTON_DIAMETER / 2)));
int y = (xr_resolutions[screen].y + ((xr_resolutions[screen].height / 2) - (BUTTON_DIAMETER / 2)));
cairo_set_source_surface(xcb_ctx, output, x, y);
cairo_rectangle(xcb_ctx, x, y, BUTTON_DIAMETER, BUTTON_DIAMETER);
cairo_fill(xcb_ctx);
}
} 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. */
int x = (last_resolution[0] / 2);
int y = (last_resolution[1] / 2);
cairo_set_source_surface(xcb_ctx, output, x, y);
cairo_rectangle(xcb_ctx, x, y, BUTTON_DIAMETER, BUTTON_DIAMETER);
cairo_fill(xcb_ctx);
}
cairo_surface_destroy(xcb_output);
cairo_surface_destroy(output);
cairo_destroy(ctx);
cairo_destroy(xcb_ctx);
#endif
return bg_pixmap;
}

3
xinerama.h
View File

@ -8,6 +8,9 @@ typedef struct Rect {
uint16_t height;
} Rect;
extern int xr_screens;
extern Rect *xr_resolutions;
void xinerama_init();
void xinerama_query_screens();