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Align titles to baseline

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This does the following:

* Adds a baseline argument to get_text_size (the baseline is the
distance from the top of the texture to the baseline).
* Stores the baseline in the container when calculating the title
height.
* Takes the baseline into account when calculating the config's max font
height.
* When rendering, pads the textures according to the baseline so they
line up.
This commit is contained in:
Ryan Dwyer 2018-09-08 16:19:31 +10:00
parent 9226aad58c
commit 9215ca0f01
11 changed files with 49 additions and 32 deletions
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5
common/pango.c
View File

@ -103,7 +103,7 @@ PangoLayout *get_pango_layout(cairo_t *cairo, const char *font,
}
void get_text_size(cairo_t *cairo, const char *font, int *width, int *height,
double scale, bool markup, const char *fmt, ...) {
int *baseline, double scale, bool markup, const char *fmt, ...) {
static char buf[2048];
va_list args;
@ -116,6 +116,9 @@ void get_text_size(cairo_t *cairo, const char *font, int *width, int *height,
PangoLayout *layout = get_pango_layout(cairo, font, buf, scale, markup);
pango_cairo_update_layout(cairo, layout);
pango_layout_get_pixel_size(layout, width, height);
if (baseline) {
*baseline = pango_layout_get_baseline(layout) / PANGO_SCALE;
}
g_object_unref(layout);
}

2
include/pango.h
View File

@ -20,7 +20,7 @@ int escape_markup_text(const char *src, char *dest, int dest_length);
PangoLayout *get_pango_layout(cairo_t *cairo, const char *font,
const char *text, double scale, bool markup);
void get_text_size(cairo_t *cairo, const char *font, int *width, int *height,
double scale, bool markup, const char *fmt, ...);
int *baseline, double scale, bool markup, const char *fmt, ...);
void pango_printf(cairo_t *cairo, const char *font,
double scale, bool markup, const char *fmt, ...);

1
include/sway/config.h
View File

@ -349,6 +349,7 @@ struct sway_config {
enum sway_container_layout default_layout;
char *font;
size_t font_height;
size_t font_baseline;
bool pango_markup;
size_t urgent_timeout;
enum sway_fowa focus_on_window_activation;

1
include/sway/tree/container.h
View File

@ -117,6 +117,7 @@ struct sway_container {
struct wlr_texture *title_unfocused;
struct wlr_texture *title_urgent;
size_t title_height;
size_t title_baseline;
struct {
struct wl_signal destroy;

21
sway/config.c
View File

@ -807,22 +807,31 @@ int workspace_output_cmp_workspace(const void *a, const void *b) {
return lenient_strcmp(wsa->workspace, wsb->workspace);
}
static void find_font_height_iterator(struct sway_container *container,
void *data) {
static void find_font_height_iterator(struct sway_container *con, void *data) {
size_t amount_below_baseline = con->title_height - con->title_baseline;
size_t extended_height = config->font_baseline + amount_below_baseline;
if (extended_height > config->font_height) {
config->font_height = extended_height;
}
}
static void find_baseline_iterator(struct sway_container *con, void *data) {
bool *recalculate = data;
if (*recalculate) {
container_calculate_title_height(container);
container_calculate_title_height(con);
}
if (container->title_height > config->font_height) {
config->font_height = container->title_height;
if (con->title_baseline > config->font_baseline) {
config->font_baseline = con->title_baseline;
}
}
void config_update_font_height(bool recalculate) {
size_t prev_max_height = config->font_height;
config->font_height = 0;
config->font_baseline = 0;
root_for_each_container(find_font_height_iterator, &recalculate);
root_for_each_container(find_baseline_iterator, &recalculate);
root_for_each_container(find_font_height_iterator, NULL);
if (config->font_height != prev_max_height) {
arrange_root();

2
sway/debug-tree.c
View File

@ -84,7 +84,7 @@ 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,
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);

12
sway/desktop/render.c
View File

@ -466,12 +466,12 @@ static void render_titlebar(struct sway_output *output,
&texture_box.width, &texture_box.height);
title_ob_width = texture_box.width;
// The title texture might be shorter than the config->font_height, in
// which case we need to pad it as evenly as possible above and below.
int ob_padding_total = config->font_height * output_scale -
texture_box.height;
int ob_padding_above = floor(ob_padding_total / 2);
int ob_padding_below = ceil(ob_padding_total / 2);
// The title texture might be shorter than the config->font_height,
// in which case we need to pad it above and below.
int ob_padding_above = (config->font_baseline - con->title_baseline)
* output_scale;
int ob_padding_below = (config->font_height - con->title_height)
* output_scale - ob_padding_above;
// Render texture
texture_box.x = (x - output_x + TITLEBAR_H_PADDING) * output_scale;

10
sway/tree/container.c
View File

@ -455,8 +455,8 @@ static void update_title_texture(struct sway_container *con,
int height = con->title_height * scale;
cairo_t *c = cairo_create(NULL);
get_text_size(c, config->font, &width, NULL, scale, config->pango_markup,
"%s", con->formatted_title);
get_text_size(c, config->font, &width, NULL, NULL, scale,
config->pango_markup, "%s", con->formatted_title);
cairo_destroy(c);
cairo_surface_t *surface = cairo_image_surface_create(
@ -505,10 +505,12 @@ void container_calculate_title_height(struct sway_container *container) {
}
cairo_t *cairo = cairo_create(NULL);
int height;
get_text_size(cairo, config->font, NULL, &height, 1, config->pango_markup,
"%s", container->formatted_title);
int baseline;
get_text_size(cairo, config->font, NULL, &height, &baseline, 1,
config->pango_markup, "%s", container->formatted_title);
cairo_destroy(cairo);
container->title_height = height;
container->title_baseline = baseline;
}
/**

3
sway/tree/view.c
View File

@ -935,7 +935,8 @@ static void update_marks_texture(struct sway_view *view,
int height = view->container->title_height * scale;
cairo_t *c = cairo_create(NULL);
get_text_size(c, config->font, &width, NULL, scale, false, "%s", buffer);
get_text_size(c, config->font, &width, NULL, NULL, scale, false,
"%s", buffer);
cairo_destroy(c);
cairo_surface_t *surface = cairo_image_surface_create(

14
swaybar/render.c
View File

@ -33,8 +33,8 @@ static uint32_t render_status_line_error(cairo_t *cairo,
int ws_vertical_padding = WS_VERTICAL_PADDING * output->scale;
int text_width, text_height;
get_text_size(cairo, config->font,
&text_width, &text_height, output->scale, false, "%s", error);
get_text_size(cairo, config->font, &text_width, &text_height, NULL,
output->scale, false, "%s", error);
uint32_t ideal_height = text_height + ws_vertical_padding * 2;
uint32_t ideal_surface_height = ideal_height / output->scale;
@ -63,7 +63,7 @@ static uint32_t render_status_line_text(cairo_t *cairo,
config->colors.focused_statusline : config->colors.statusline);
int text_width, text_height;
get_text_size(cairo, config->font, &text_width, &text_height,
get_text_size(cairo, config->font, &text_width, &text_height, NULL,
output->scale, config->pango_markup, "%s", text);
int ws_vertical_padding = WS_VERTICAL_PADDING * output->scale;
@ -126,7 +126,7 @@ static uint32_t render_status_block(cairo_t *cairo,
uint32_t height = surface_height * output->scale;
int text_width, text_height;
get_text_size(cairo, config->font, &text_width, &text_height,
get_text_size(cairo, config->font, &text_width, &text_height, NULL,
output->scale, block->markup, "%s", block->full_text);
int margin = 3 * output->scale;
@ -157,7 +157,7 @@ static uint32_t render_status_block(cairo_t *cairo,
int sep_width, sep_height;
if (!edge) {
if (config->sep_symbol) {
get_text_size(cairo, config->font, &sep_width, &sep_height,
get_text_size(cairo, config->font, &sep_width, &sep_height, NULL,
output->scale, false, "%s", config->sep_symbol);
uint32_t _ideal_height = sep_height + ws_vertical_padding * 2;
uint32_t _ideal_surface_height = _ideal_height / output->scale;
@ -297,7 +297,7 @@ static uint32_t render_binding_mode_indicator(cairo_t *cairo,
uint32_t height = surface_height * output->scale;
int text_width, text_height;
get_text_size(cairo, config->font, &text_width, &text_height,
get_text_size(cairo, config->font, &text_width, &text_height, NULL,
output->scale, config->mode_pango_markup,
"%s", mode);
@ -379,7 +379,7 @@ static uint32_t render_workspace_button(cairo_t *cairo,
uint32_t height = surface_height * output->scale;
int text_width, text_height;
get_text_size(cairo, config->font, &text_width, &text_height,
get_text_size(cairo, config->font, &text_width, &text_height, NULL,
output->scale, config->pango_markup, "%s", name);
int ws_vertical_padding = WS_VERTICAL_PADDING * output->scale;

10
swaynag/render.c
View File

@ -12,7 +12,7 @@ static uint32_t render_message(cairo_t *cairo, struct swaynag *swaynag) {
height -= swaynag->type->bar_border_thickness * swaynag->scale;
int text_width, text_height;
get_text_size(cairo, swaynag->type->font, &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;
@ -34,7 +34,7 @@ static uint32_t render_message(cairo_t *cairo, struct swaynag *swaynag) {
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,
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;
@ -60,10 +60,10 @@ static void render_details_scroll_button(cairo_t *cairo,
static int get_detailed_scroll_button_width(cairo_t *cairo,
struct swaynag *swaynag) {
int up_width, down_width, temp_height;
get_text_size(cairo, swaynag->type->font, &up_width, &temp_height,
get_text_size(cairo, swaynag->type->font, &up_width, &temp_height, NULL,
swaynag->scale, true,
"%s", swaynag->details.button_up.text);
get_text_size(cairo, swaynag->type->font, &down_width, &temp_height,
get_text_size(cairo, swaynag->type->font, &down_width, &temp_height, NULL,
swaynag->scale, true,
"%s", swaynag->details.button_down.text);
@ -179,7 +179,7 @@ static uint32_t render_button(cairo_t *cairo, struct swaynag *swaynag,
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,
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;