static void render_details_scroll_button(cairo_t *cairo,
struct swaynag *swaynag, struct swaynag_button *button) {
int text_width, text_height;
get_text_size(cairo, swaynag->type->font, &text_width, &text_height, NULL,
swaynag->scale, true, "%s", button->text);
int border = swaynag->type->button_border_thickness * swaynag->scale;
int padding = swaynag->type->button_padding * swaynag->scale;
cairo_set_source_u32(cairo, swaynag->type->border);
cairo_rectangle(cairo, button->x, button->y,
button->width, button->height);
cairo_fill(cairo);
cairo_set_source_u32(cairo, swaynag->type->button_background);
cairo_rectangle(cairo, button->x + border, button->y + border,
button->width - (border * 2), button->height - (border * 2));
cairo_fill(cairo);
cairo_set_source_u32(cairo, swaynag->type->text);
cairo_move_to(cairo, button->x + border + padding,
button->y + border + (button->height - text_height) / 2);
pango_printf(cairo, swaynag->type->font, swaynag->scale, true,
"%s", button->text);
}
void render(struct output *output, struct config *config, struct status_line *line) {
int i;
struct window *window = output->window;
cairo_t *cairo = window->cairo;
// Clear
cairo_save(cairo);
cairo_set_operator(cairo, CAIRO_OPERATOR_CLEAR);
cairo_paint(cairo);
cairo_restore(cairo);
// Background
cairo_set_source_u32(cairo, config->colors.background);
cairo_paint(cairo);
// Command output
cairo_set_source_u32(cairo, config->colors.statusline);
int width, height;
if (line->protocol == TEXT) {
get_text_size(window->cairo, window->font, &width, &height, "%s", line->text_line);
cairo_move_to(cairo, window->width - margin - width, margin);
pango_printf(window->cairo, window->font, "%s", line->text_line);
} else if (line->protocol == I3BAR && line->block_line) {
double pos = window->width - 0.5;
bool edge = true;
for (i = line->block_line->length - 1; i >= 0; --i) {
struct status_block *block = line->block_line->items[i];
if (block->full_text && block->full_text[0]) {
render_block(window, config, block, &pos, edge);
edge = false;
}
}
}
cairo_set_line_width(cairo, 1.0);
double x = 0.5;
// Workspaces
if (config->workspace_buttons) {
for (i = 0; i < output->workspaces->length; ++i) {
struct workspace *ws = output->workspaces->items[i];
render_workspace_button(window, config, ws, &x);
}
}
// binding mode indicator
if (config->mode && config->binding_mode_indicator) {
render_binding_mode_indicator(window, config, x);
}
}
/**
* Renders a sharp line of any width and height.
*
* The line is drawn from (x,y) to (x+width,y+height) where width/height is 0
* if the line has a width/height of one pixel, respectively.
*/
static void render_sharp_line(cairo_t *cairo, uint32_t color, double x, double y, double width, double height) {
cairo_set_source_u32(cairo, color);
if (width > 1 && height > 1) {
cairo_rectangle(cairo, x, y, width, height);
cairo_fill(cairo);
} else {
if (width == 1) {
x += 0.5;
height += y;
width = x;
}
if (height == 1) {
y += 0.5;
width += x;
height = y;
}
cairo_move_to(cairo, x, y);
cairo_set_line_width(cairo, 1.0);
cairo_line_to(cairo, width, height);
cairo_stroke(cairo);
}
}
static uint32_t render_button(cairo_t *cairo, struct swaynag *swaynag,
int button_index, int *x) {
struct swaynag_button *button = swaynag->buttons->items[button_index];
int text_width, text_height;
get_text_size(cairo, swaynag->type->font, &text_width, &text_height, NULL,
swaynag->scale, true, "%s", button->text);
int border = swaynag->type->button_border_thickness * swaynag->scale;
int padding = swaynag->type->button_padding * swaynag->scale;
uint32_t ideal_height = text_height + padding * 2 + border * 2;
uint32_t ideal_surface_height = ideal_height / swaynag->scale;
if (swaynag->height < ideal_surface_height) {
return ideal_surface_height;
}
button->x = *x - border - text_width - padding * 2 + 1;
button->y = (int)(ideal_height - text_height) / 2 - padding + 1;
button->width = text_width + padding * 2;
button->height = text_height + padding * 2;
cairo_set_source_u32(cairo, swaynag->type->border);
cairo_rectangle(cairo, button->x - border, button->y - border,
button->width + border * 2, button->height + border * 2);
cairo_fill(cairo);
cairo_set_source_u32(cairo, swaynag->type->button_background);
cairo_rectangle(cairo, button->x, button->y,
button->width, button->height);
cairo_fill(cairo);
cairo_set_source_u32(cairo, swaynag->type->text);
cairo_move_to(cairo, button->x + padding, button->y + padding);
pango_printf(cairo, swaynag->type->font, swaynag->scale, true,
"%s", button->text);
*x = button->x - border;
return ideal_surface_height;
}
static void render_binding_mode_indicator(struct window *window, struct config *config, double pos) {
int width, height;
get_text_size(window->cairo, window->font, &width, &height, "%s", config->mode);
// background
cairo_set_source_u32(window->cairo, config->colors.binding_mode.background);
cairo_rectangle(window->cairo, pos, 1.5, width + ws_horizontal_padding * 2 - 1,
height + ws_vertical_padding * 2);
cairo_fill(window->cairo);
// border
cairo_set_source_u32(window->cairo, config->colors.binding_mode.border);
cairo_rectangle(window->cairo, pos, 1.5, width + ws_horizontal_padding * 2 - 1,
height + ws_vertical_padding * 2);
cairo_stroke(window->cairo);
// text
cairo_set_source_u32(window->cairo, config->colors.binding_mode.text);
cairo_move_to(window->cairo, (int)pos + ws_horizontal_padding, margin);
pango_printf(window->cairo, window->font, "%s", config->mode);
}
static int draw_node(cairo_t *cairo, struct sway_node *node,
struct sway_node *focus, int x, int y) {
int text_width, text_height;
char *buffer = get_string(node);
get_text_size(cairo, "monospace", &text_width, &text_height, NULL,
1, false, buffer);
cairo_save(cairo);
cairo_rectangle(cairo, x + 2, y, text_width - 2, text_height);
cairo_set_source_u32(cairo, 0xFFFFFFE0);
cairo_fill(cairo);
int height = text_height;
list_t *children = get_children(node);
if (children) {
for (int i = 0; i < children->length; ++i) {
// This is really dirty - the list contains specific structs but
// we're casting them as nodes. This works because node is the first
// item in each specific struct. This is acceptable because this is
// debug code.
struct sway_node *child = children->items[i];
if (node_get_parent(child) == node) {
cairo_set_source_u32(cairo, 0x000000FF);
} else {
cairo_set_source_u32(cairo, 0xFF0000FF);
}
height += draw_node(cairo, child, focus, x + 10, y + height);
}
}
cairo_set_source_u32(cairo, 0xFFFFFFE0);
cairo_rectangle(cairo, x, y, 2, height);
cairo_fill(cairo);
cairo_restore(cairo);
cairo_move_to(cairo, x, y);
if (focus == node) {
cairo_set_source_u32(cairo, 0x0000FFFF);
}
pango_printf(cairo, "monospace", 1, false, buffer);
free(buffer);
return height;
}
static uint32_t render_to_cairo(cairo_t *cairo, struct swaynag *swaynag) {
uint32_t max_height = 0;
cairo_set_operator(cairo, CAIRO_OPERATOR_SOURCE);
cairo_set_source_u32(cairo, swaynag->type->background);
cairo_paint(cairo);
uint32_t h = render_message(cairo, swaynag);
max_height = h > max_height ? h : max_height;
int x = swaynag->width - swaynag->type->button_margin_right;
x *= swaynag->scale;
for (int i = 0; i < swaynag->buttons->length; i++) {
h = render_button(cairo, swaynag, i, &x);
max_height = h > max_height ? h : max_height;
x -= swaynag->type->button_gap * swaynag->scale;
if (i == 0) {
x -= swaynag->type->button_gap_close * swaynag->scale;
}
}
if (swaynag->details.visible) {
h = render_detailed(cairo, swaynag, max_height);
max_height = h > max_height ? h : max_height;
}
int border = swaynag->type->bar_border_thickness * swaynag->scale;
if (max_height > swaynag->height) {
max_height += border;
}
cairo_set_source_u32(cairo, swaynag->type->border_bottom);
cairo_rectangle(cairo, 0,
swaynag->height * swaynag->scale - border,
swaynag->width * swaynag->scale,
border);
cairo_fill(cairo);
return max_height;
}
static void render_workspace_button(struct window *window, struct config *config, struct workspace *ws, double *x) {
// strip workspace numbers if required
char *name = handle_workspace_number(config->strip_workspace_numbers, ws->name);
int width, height;
get_text_size(window->cairo, window->font, &width, &height, "%s", 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;
}
// background
cairo_set_source_u32(window->cairo, box_colors.background);
cairo_rectangle(window->cairo, *x, 1.5, width + ws_horizontal_padding * 2 - 1,
height + ws_vertical_padding * 2);
cairo_fill(window->cairo);
// border
cairo_set_source_u32(window->cairo, box_colors.border);
cairo_rectangle(window->cairo, *x, 1.5, width + ws_horizontal_padding * 2 - 1,
height + ws_vertical_padding * 2);
cairo_stroke(window->cairo);
// text
cairo_set_source_u32(window->cairo, box_colors.text);
cairo_move_to(window->cairo, (int)*x + ws_horizontal_padding, margin);
pango_printf(window->cairo, window->font, "%s", name);
*x += width + ws_horizontal_padding * 2 + ws_spacing;
free(name);
}
static uint32_t render_message(cairo_t *cairo, struct swaynag *swaynag) {
int text_width, text_height;
get_text_size(cairo, swaynag->type->font, &text_width, &text_height, NULL,
swaynag->scale, true, "%s", swaynag->message);
int padding = swaynag->type->message_padding * swaynag->scale;
uint32_t ideal_height = text_height + padding * 2;
uint32_t ideal_surface_height = ideal_height / swaynag->scale;
if (swaynag->height < ideal_surface_height) {
return ideal_surface_height;
}
cairo_set_source_u32(cairo, swaynag->type->text);
cairo_move_to(cairo, padding, (int)(ideal_height - text_height) / 2);
pango_printf(cairo, swaynag->type->font, swaynag->scale, false,
"%s", swaynag->message);
return ideal_surface_height;
}
void update_debug_tree(void) {
if (!debug.render_tree) {
return;
}
int width = 640, height = 480;
for (int i = 0; i < root->outputs->length; ++i) {
struct sway_output *output = root->outputs->items[i];
if (output->width > width) {
width = output->width;
}
if (output->height > height) {
height = output->height;
}
}
cairo_surface_t *surface =
cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
cairo_t *cairo = cairo_create(surface);
PangoContext *pango = pango_cairo_create_context(cairo);
struct sway_seat *seat = input_manager_current_seat();
struct sway_node *focus = seat_get_focus(seat);
cairo_set_source_u32(cairo, 0x000000FF);
draw_node(cairo, &root->node, focus, 0, 0);
cairo_surface_flush(surface);
struct wlr_renderer *renderer = wlr_backend_get_renderer(server.backend);
if (root->debug_tree) {
wlr_texture_destroy(root->debug_tree);
}
unsigned char *data = cairo_image_surface_get_data(surface);
int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, width);
struct wlr_texture *texture = wlr_texture_from_pixels(renderer,
WL_SHM_FORMAT_ARGB8888, stride, width, height, data);
root->debug_tree = texture;
cairo_surface_destroy(surface);
g_object_unref(pango);
cairo_destroy(cairo);
}
void render_color(struct window *window, uint32_t color) {
cairo_set_source_u32(window->cairo, color);
cairo_paint(window->cairo);
}
static void render_block(struct window *window, struct config *config, struct status_block *block, double *x, bool edge) {
int width, height, sep_width;
get_text_size(window->cairo, window->font, &width, &height, "%s", block->full_text);
int textwidth = width;
double block_width = width;
if (width < block->min_width) {
width = block->min_width;
}
*x -= width;
if (block->border != 0 && block->border_left > 0) {
*x -= (block->border_left + margin);
block_width += block->border_left + margin;
}
if (block->border != 0 && block->border_right > 0) {
*x -= (block->border_right + margin);
block_width += block->border_right + margin;
}
// Add separator
if (!edge) {
if (config->sep_symbol) {
get_text_size(window->cairo, window->font, &sep_width, &height, "%s", config->sep_symbol);
if (sep_width > block->separator_block_width) {
block->separator_block_width = sep_width + margin * 2;
}
}
*x -= block->separator_block_width;
} else {
*x -= margin;
}
double pos = *x;
// render background
if (block->background != 0x0) {
cairo_set_source_u32(window->cairo, block->background);
cairo_rectangle(window->cairo, pos - 0.5, 1, block_width, window->height - 2);
cairo_fill(window->cairo);
}
// render top border
if (block->border != 0 && block->border_top > 0) {
render_sharp_line(window->cairo, block->border,
pos - 0.5,
1,
block_width,
block->border_top);
}
// render bottom border
if (block->border != 0 && block->border_bottom > 0) {
render_sharp_line(window->cairo, block->border,
pos - 0.5,
window->height - 1 - block->border_bottom,
block_width,
block->border_bottom);
}
// render left border
if (block->border != 0 && block->border_left > 0) {
render_sharp_line(window->cairo, block->border,
pos - 0.5,
1,
block->border_left,
window->height - 2);
pos += block->border_left + margin;
}
// render text
double offset = 0;
if (strncmp(block->align, "left", 5) == 0) {
offset = pos;
} else if (strncmp(block->align, "right", 5) == 0) {
offset = pos + width - textwidth;
} else if (strncmp(block->align, "center", 6) == 0) {
offset = pos + (width - textwidth) / 2;
}
cairo_move_to(window->cairo, offset, margin);
cairo_set_source_u32(window->cairo, block->color);
pango_printf(window->cairo, window->font, "%s", block->full_text);
pos += width;
// render right border
if (block->border != 0 && block->border_right > 0) {
pos += margin;
render_sharp_line(window->cairo, block->border,
pos - 0.5,
1,
block->border_right,
window->height - 2);
pos += block->border_right;
}
// render separator
if (!edge && block->separator) {
cairo_set_source_u32(window->cairo, config->colors.separator);
if (config->sep_symbol) {
offset = pos + (block->separator_block_width - sep_width) / 2;
cairo_move_to(window->cairo, offset, margin);
pango_printf(window->cairo, window->font, "%s", config->sep_symbol);
} else {
cairo_set_line_width(window->cairo, 1);
cairo_move_to(window->cairo, pos + block->separator_block_width/2,
margin);
cairo_line_to(window->cairo, pos + block->separator_block_width/2,
window->height - margin);
cairo_stroke(window->cairo);
}
}
}
static uint32_t render_detailed(cairo_t *cairo, struct swaynag *swaynag,
uint32_t y) {
uint32_t width = swaynag->width * swaynag->scale;
int border = swaynag->type->details_border_thickness * swaynag->scale;
int padding = swaynag->type->message_padding * swaynag->scale;
int decor = padding + border;
swaynag->details.x = decor;
swaynag->details.y = y * swaynag->scale + decor;
swaynag->details.width = width - decor * 2;
PangoLayout *layout = get_pango_layout(cairo, swaynag->type->font,
swaynag->details.message, swaynag->scale, false);
pango_layout_set_width(layout,
(swaynag->details.width - padding * 2) * PANGO_SCALE);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_single_paragraph_mode(layout, false);
pango_cairo_update_layout(cairo, layout);
swaynag->details.total_lines = pango_layout_get_line_count(layout);
PangoLayoutLine *line;
line = pango_layout_get_line_readonly(layout, swaynag->details.offset);
gint offset = line->start_index;
const char *text = pango_layout_get_text(layout);
pango_layout_set_text(layout, text + offset, strlen(text) - offset);
int text_width, text_height;
pango_cairo_update_layout(cairo, layout);
pango_layout_get_pixel_size(layout, &text_width, &text_height);
bool show_buttons = swaynag->details.offset > 0;
int button_width = get_detailed_scroll_button_width(cairo, swaynag);
if (show_buttons) {
swaynag->details.width -= button_width;
pango_layout_set_width(layout,
(swaynag->details.width - padding * 2) * PANGO_SCALE);
}
uint32_t ideal_height;
do {
ideal_height = swaynag->details.y + text_height + decor + padding * 2;
if (ideal_height > SWAYNAG_MAX_HEIGHT) {
ideal_height = SWAYNAG_MAX_HEIGHT;
if (!show_buttons) {
show_buttons = true;
swaynag->details.width -= button_width;
pango_layout_set_width(layout,
(swaynag->details.width - padding * 2) * PANGO_SCALE);
}
}
swaynag->details.height = ideal_height - swaynag->details.y - decor;
pango_layout_set_height(layout,
(swaynag->details.height - padding * 2) * PANGO_SCALE);
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END);
pango_cairo_update_layout(cairo, layout);
pango_layout_get_pixel_size(layout, &text_width, &text_height);
} while (text_height != (swaynag->details.height - padding * 2));
swaynag->details.visible_lines = pango_layout_get_line_count(layout);
if (show_buttons) {
swaynag->details.button_up.x =
swaynag->details.x + swaynag->details.width;
swaynag->details.button_up.y = swaynag->details.y;
swaynag->details.button_up.width = button_width;
swaynag->details.button_up.height = swaynag->details.height / 2;
render_details_scroll_button(cairo, swaynag,
&swaynag->details.button_up);
swaynag->details.button_down.x =
swaynag->details.x + swaynag->details.width;
swaynag->details.button_down.y =
swaynag->details.button_up.y + swaynag->details.button_up.height;
swaynag->details.button_down.width = button_width;
swaynag->details.button_down.height = swaynag->details.height / 2;
render_details_scroll_button(cairo, swaynag,
&swaynag->details.button_down);
}
cairo_set_source_u32(cairo, swaynag->type->border);
cairo_rectangle(cairo, swaynag->details.x, swaynag->details.y,
swaynag->details.width, swaynag->details.height);
cairo_fill(cairo);
cairo_move_to(cairo, swaynag->details.x + padding,
swaynag->details.y + padding);
cairo_set_source_u32(cairo, swaynag->type->text);
pango_cairo_show_layout(cairo, layout);
g_object_unref(layout);
return ideal_height / swaynag->scale;
}
