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Implement workspace button rendering

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This commit is contained in:
Drew DeVault 2018-03-29 00:49:59 -04:00
parent 3399ad9840
commit 3a458cd7b5
1 changed files with 88 additions and 4 deletions
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92
swaybar/render.c
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@ -10,8 +10,79 @@
#include "swaybar/render.h"
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
static uint32_t render_to_cairo(cairo_t *cairo, struct swaybar *bar,
struct swaybar_output *output) {
static const char *strip_workspace_number(const char *ws_name) {
size_t len = strlen(ws_name);
for (size_t i = 0; i < len; ++i) {
if (ws_name[i] < '0' || ws_name[i] > '9') {
if (':' == ws_name[i] && i < len - 1 && i > 0) {
return ws_name + i + 1;
}
return ws_name;
}
}
return ws_name;
}
static uint32_t render_workspace_button(cairo_t *cairo,
struct swaybar_config *config, struct swaybar_workspace *ws,
double *x, uint32_t height) {
static const int ws_horizontal_padding = 5;
static const double ws_vertical_padding = 1.5;
static const int ws_spacing = 1;
const char *name = ws->name;
if (config->strip_workspace_numbers) {
name = strip_workspace_number(ws->name);
}
struct box_colors box_colors;
if (ws->urgent) {
box_colors = config->colors.urgent_workspace;
} else if (ws->focused) {
box_colors = config->colors.focused_workspace;
} else if (ws->visible) {
box_colors = config->colors.active_workspace;
} else {
box_colors = config->colors.inactive_workspace;
}
int text_width, text_height;
get_text_size(cairo, config->font, &text_width, &text_height,
1, true, "%s", name);
uint32_t ideal_height = ws_vertical_padding * 2 + text_height;
if (height < ideal_height) {
height = ideal_height;
}
uint32_t width = ws_horizontal_padding * 2 + text_width;
cairo_set_source_u32(cairo, box_colors.background);
cairo_rectangle(cairo, *x, 0, width - 1, height);
cairo_fill(cairo);
cairo_set_source_u32(cairo, box_colors.border);
cairo_rectangle(cairo, *x, 0, width - 1, height);
cairo_stroke(cairo);
double text_y = height / 2.0 - text_height / 2.0;
cairo_set_source_u32(cairo, box_colors.text);
cairo_move_to(cairo, (int)*x + ws_horizontal_padding, (int)floor(text_y));
pango_printf(cairo, config->font, 1, true, "%s", name);
*x += width + ws_spacing;
return ideal_height;
}
static void update_heights(uint32_t height, uint32_t *min, uint32_t *max) {
if (*min < height) {
*min = height;
}
if (height > *max) {
*max = height;
}
}
static uint32_t render_to_cairo(cairo_t *cairo,
struct swaybar *bar, struct swaybar_output *output) {
struct swaybar_config *config = bar->config;
cairo_save(cairo);
@ -27,8 +98,20 @@ static uint32_t render_to_cairo(cairo_t *cairo, struct swaybar *bar,
}
cairo_paint(cairo);
// TODO: use actual height
return 20;
uint32_t min_height = output->height, max_height = output->height;
double x = 0;
if (config->workspace_buttons) {
struct swaybar_workspace *ws;
wl_list_for_each(ws, &output->workspaces, link) {
uint32_t h = render_workspace_button(
cairo, config, ws, &x, output->height);
update_heights(h, &min_height, &max_height);
}
}
// TODO: Shrink via min_height if sane
return max_height;
}
void render_frame(struct swaybar *bar,
@ -41,6 +124,7 @@ void render_frame(struct swaybar *bar,
// Reconfigure surface
zwlr_layer_surface_v1_set_size(
output->layer_surface, 0, height);
zwlr_layer_surface_v1_set_exclusive_zone(output->layer_surface, height);
// TODO: this could infinite loop if the compositor assigns us a
// different height than what we asked for
wl_surface_commit(output->surface);