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Fix scaling issues

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This commit is contained in:
eyenseo 2018-02-03 13:33:15 +01:00
parent b36640d4f7
commit 19e6bb9acf
2 changed files with 98 additions and 102 deletions
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199
unlock_indicator.c
View file

@ -42,7 +42,7 @@ 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;
extern int input_position;
/* The lock window. */
extern xcb_window_t win;
@ -202,10 +202,10 @@ static cairo_font_face_t *font_faces[5] = {
* 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 double calculate_scaling_factor(void) {
const double 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) {
@ -418,7 +418,6 @@ static void draw_bar(cairo_t *ctx, double x, double y, double bar_offset) {
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);
@ -596,16 +595,24 @@ void init_colors_once(void) {
colorgen_rgb(&tmp_rgb, color, &rgb16);
}
te_expr *compile_expression(const char *const from, const char *expression, const te_variable *variables, int var_count) {
int te_err = 0;
te_expr *expr = te_compile(expression, variables, var_count, &te_err);
if (te_err) {
fprintf(stderr, "Failed to reason about '%s' given by '%s'\n", expression, from);
exit(1);
}
return expr;
}
/*
* Draws global image with fill color onto a pixmap with the given
* resolution and returns it.
*
*/
xcb_pixmap_t draw_image(uint32_t *resolution) {
const double scaling_factor = calculate_scaling_factor();
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);
@ -617,6 +624,7 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
*/
cairo_surface_t *output = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, resolution[0], resolution[1]);
cairo_t *ctx = cairo_create(output);
cairo_scale(ctx, scaling_factor, scaling_factor);
// cairo_set_font_face(ctx, get_font_face(0));
@ -784,87 +792,74 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
}
// 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 screen_x = 0, screen_y = 0,
width = 0, height = 0;
double radius = BUTTON_RADIUS;
double mod_x = 0, mod_y = 0,
date_x = 0, date_y = 0,
bar_x = 0, bar_y = 0,
layout_x = 0, layout_y = 0,
status_x = 0, status_y = 0,
time_x = 0, time_y = 0,
indicator_x = 0, indicator_y = 0;
double radius = (circle_radius + ring_width);
double bar_offset = 0;
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);
int te_x_err;
int te_y_err;
// variable mapping for evaluating the clock position expression
const unsigned int vars_size = 11;
te_variable vars[] =
{{"w", &w},
{"h", &h},
{{"w", &width},
{"h", &height},
{"x", &screen_x},
{"y", &screen_y},
{"ix", &ix},
{"iy", &iy},
{"tx", &tx},
{"ty", &ty},
{"dx", &dx},
{"dy", &dy},
{"ix", &indicator_x},
{"iy", &indicator_y},
{"tx", &time_x},
{"ty", &time_y},
{"dx", &date_x},
{"dy", &date_y},
{"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;
te_expr *te_ind_x_expr = compile_expression("--indpos", ind_x_expr, vars, vars_size);
te_expr *te_ind_y_expr = compile_expression("--indpos", ind_y_expr, vars, vars_size);
te_expr *te_time_x_expr = compile_expression("--timepos", time_x_expr, vars, vars_size);
te_expr *te_time_y_expr = compile_expression("--timepos", time_y_expr, vars, vars_size);
te_expr *te_date_x_expr = compile_expression("--datepos", date_x_expr, vars, vars_size);
te_expr *te_date_y_expr = compile_expression("--datepos", date_y_expr, vars, vars_size);
te_expr *te_layout_x_expr = compile_expression("--layoutpos", layout_x_expr, vars, vars_size);
te_expr *te_layout_y_expr = compile_expression("--layoutpos", layout_y_expr, vars, vars_size);
te_expr *te_status_x_expr = compile_expression("--statuspos", status_x_expr, vars, vars_size);
te_expr *te_status_y_expr = compile_expression("--statuspos", status_y_expr, vars, vars_size);
te_expr *te_modif_x_expr = compile_expression("--modifpos", modif_x_expr, vars, vars_size);
te_expr *te_modif_y_expr = compile_expression("--modifpos", modif_y_expr, vars, vars_size);
te_expr *te_bar_expr = compile_expression("--bar-position", bar_expr, vars, vars_size);
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;
width = xr_resolutions[screen_number].width / scaling_factor;
height = xr_resolutions[screen_number].height / scaling_factor;
screen_x = xr_resolutions[screen_number].x / scaling_factor;
screen_y = xr_resolutions[screen_number].y / scaling_factor;
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);
indicator_x = te_eval(te_ind_x_expr);
indicator_y = 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);
indicator_x = screen_x + (width / 2);
indicator_y = screen_y + (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;
bar_x = indicator_x - (button_diameter_physical / 2);
bar_y = indicator_y - (button_diameter_physical / 2);
time_x = te_eval(te_time_x_expr);
time_y = te_eval(te_time_y_expr);
date_x = te_eval(te_date_x_expr);
date_y = te_eval(te_date_y_expr);
layout_x = te_eval(te_layout_x_expr);
layout_y = te_eval(te_layout_y_expr);
status_x = te_eval(te_status_x_expr);
@ -875,21 +870,17 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
/* 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);
width = last_resolution[0] / scaling_factor;
height = last_resolution[1] / scaling_factor;
indicator_x = width / 2;
indicator_y = height / 2;
bar_x = indicator_x - (button_diameter_physical / 2);
bar_y = indicator_y - (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;
time_x = te_eval(te_time_x_expr);
time_y = te_eval(te_time_y_expr);
date_x = te_eval(te_date_x_expr);
date_y = te_eval(te_date_y_expr);
layout_x = te_eval(te_layout_x_expr);
layout_y = te_eval(te_layout_y_expr);
status_x = te_eval(te_status_x_expr);
@ -898,22 +889,18 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
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;
width = xr_resolutions[screen_number].width / scaling_factor;
height = xr_resolutions[screen_number].height / scaling_factor;
indicator_x = width / 2;
indicator_y = height / 2;
bar_x = indicator_x - (button_diameter_physical / 2);
bar_y = indicator_y - (button_diameter_physical / 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;
time_x = te_eval(te_time_x_expr);
time_y = te_eval(te_time_y_expr);
date_x = te_eval(te_date_x_expr);
date_y = te_eval(te_date_y_expr);
layout_x = te_eval(te_layout_x_expr);
layout_y = te_eval(te_layout_y_expr);
status_x = te_eval(te_status_x_expr);
@ -936,6 +923,14 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
te_free(te_modif_y_expr);
te_free(te_bar_expr);
DEBUG("Indicator at %fx%f\n", indicator_x, indicator_y);
DEBUG("Bar at %fx%f\n", bar_x, bar_y);
DEBUG("Time at %fx%f\n", time_x, time_y);
DEBUG("Date at %fx%f\n", date_x, date_y);
DEBUG("Layout at %fx%f\n", layout_x, layout_y);
DEBUG("Status at %fx%f\n", status_x, status_y);
DEBUG("Mod at %fx%f\n", mod_x, mod_y);
status_text.x = status_x;
status_text.y = status_y;
@ -952,7 +947,7 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
// indicator stuff
if (!bar_enabled) {
draw_indic(ctx, ix, iy);
draw_indic(ctx, indicator_x, indicator_y);
} else {
if (unlock_state == STATE_KEY_ACTIVE ||
unlock_state == STATE_BACKSPACE_ACTIVE) {
@ -977,7 +972,7 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
break;
}
}
draw_bar(ctx, x, y, bar_offset);
draw_bar(ctx, bar_x, bar_y, bar_offset);
}
draw_text(ctx, status_text);

1
unlock_indicator.h
View file

@ -2,6 +2,7 @@
#define _UNLOCK_INDICATOR_H
#include <ev.h>
#include <xcb/xcb.h>
typedef struct rgb {
double red;