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Merge pull request #717 from nick87720z/rgba-support

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Rgba support
This commit is contained in:
Nikos Tsipinakis 2020-05-28 12:54:47 +02:00 committed by GitHub
commit d885e93b73
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 41 additions and 15 deletions
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55
src/draw.c
View File

@ -9,6 +9,7 @@
#include <pango/pango-layout.h>
#include <pango/pango-types.h>
#include <stdlib.h>
#include <inttypes.h>
#include "dunst.h"
#include "icon.h"
@ -33,6 +34,8 @@ struct window_x11 *win;
PangoFontDescription *pango_fdesc;
#define UINT_MAX_N(bits) ((1 << bits) - 1)
void draw_setup(void)
{
x_setup();
@ -41,12 +44,16 @@ void draw_setup(void)
pango_fdesc = pango_font_description_from_string(settings.font);
}
static struct color hex_to_color(int hexValue)
static struct color hex_to_color(uint32_t hexValue, int dpc)
{
const int bpc = 4 * dpc;
const unsigned single_max = UINT_MAX_N(bpc);
struct color ret;
ret.r = ((hexValue >> 16) & 0xFF) / 255.0;
ret.g = ((hexValue >> 8) & 0xFF) / 255.0;
ret.b = ((hexValue) & 0xFF) / 255.0;
ret.r = ((hexValue >> 3 * bpc) & single_max) / (double)single_max;
ret.g = ((hexValue >> 2 * bpc) & single_max) / (double)single_max;
ret.b = ((hexValue >> 1 * bpc) & single_max) / (double)single_max;
ret.a = ((hexValue) & single_max) / (double)single_max;
return ret;
}
@ -54,15 +61,24 @@ static struct color hex_to_color(int hexValue)
static struct color string_to_color(const char *str)
{
char *end;
long int val = strtol(str+1, &end, 16);
if (*end != '\0' && *(end+1) != '\0') {
uint_fast32_t val = strtoul(str+1, &end, 16);
if (end[0] != '\0' && end[1] != '\0') {
LOG_W("Invalid color string: '%s'", str);
}
return hex_to_color(val);
switch (end - (str+1)) {
case 3: return hex_to_color((val << 4) | 0xF, 1);
case 6: return hex_to_color((val << 8) | 0xFF, 2);
case 4: return hex_to_color(val, 1);
case 8: return hex_to_color(val, 2);
}
/* return black on error */
LOG_W("Invalid color string: '%s'", str);
return hex_to_color(0xF, 1);
}
static double color_apply_delta(double base, double delta)
static inline double color_apply_delta(double base, double delta)
{
base += delta;
if (base > 1)
@ -481,6 +497,12 @@ static cairo_surface_t *render_background(cairo_surface_t *srf,
cairo_t *c = cairo_create(srf);
/* stroke area doesn't intersect with main area */
cairo_set_fill_rule(c, CAIRO_FILL_RULE_EVEN_ODD);
/* for correct combination of adjacent areas */
cairo_set_operator(c, CAIRO_OPERATOR_ADD);
if (first)
height += settings.frame_width;
if (last)
@ -488,11 +510,8 @@ static cairo_surface_t *render_background(cairo_surface_t *srf,
else
height += settings.separator_height;
if (settings.frame_width > 0)
{
cairo_set_source_rgb(c, cl->frame.r, cl->frame.g, cl->frame.b);
if (settings.frame_width > 0) {
draw_rounded_rect(c, x, y, width, height, corner_radius, first, last);
cairo_fill(c);
/* adding frame */
x += settings.frame_width;
@ -509,17 +528,23 @@ static cairo_surface_t *render_background(cairo_surface_t *srf,
height -= settings.separator_height;
radius_int = frame_internal_radius (corner_radius, settings.frame_width, height);
draw_rounded_rect(c, x, y, width, height, radius_int, first, last);
cairo_set_source_rgba(c, cl->frame.r, cl->frame.g, cl->frame.b, cl->frame.a);
cairo_fill(c);
}
cairo_set_source_rgb(c, cl->bg.r, cl->bg.g, cl->bg.b);
draw_rounded_rect(c, x, y, width, height, radius_int, first, last);
cairo_set_source_rgba(c, cl->bg.r, cl->bg.g, cl->bg.b, cl->bg.a);
cairo_fill(c);
cairo_set_operator(c, CAIRO_OPERATOR_SOURCE);
if ( settings.sep_color.type != SEP_FRAME
&& settings.separator_height > 0
&& !last) {
struct color sep_color = layout_get_sepcolor(cl, cl_next);
cairo_set_source_rgb(c, sep_color.r, sep_color.g, sep_color.b);
cairo_set_source_rgba(c, sep_color.r, sep_color.g, sep_color.b, sep_color.a);
cairo_rectangle(c, settings.frame_width, y + height, width, settings.separator_height);
@ -561,7 +586,7 @@ static void render_content(cairo_t *c, struct colored_layout *cl, int width)
}
cairo_move_to(c, text_x, text_y);
cairo_set_source_rgb(c, cl->fg.r, cl->fg.g, cl->fg.b);
cairo_set_source_rgba(c, cl->fg.r, cl->fg.g, cl->fg.b, cl->fg.a);
pango_cairo_update_layout(c, cl->l);
pango_cairo_show_layout(c, cl->l);

1
src/x11/x.h
View File

@ -44,6 +44,7 @@ struct color {
double r;
double g;
double b;
double a;
};
extern struct x_context xctx;