diff --git a/common/pango.c b/common/pango.c index abc18281f3..e8e2678d01 100644 --- a/common/pango.c +++ b/common/pango.c @@ -109,10 +109,9 @@ void get_text_size(cairo_t *cairo, const char *font, int *width, int *height, free(buf); } -void get_text_metrics(const char *font, int *height, int *baseline) { +void get_text_metrics(const PangoFontDescription *description, int *height, int *baseline) { cairo_t *cairo = cairo_create(NULL); PangoContext *pango = pango_cairo_create_context(cairo); - PangoFontDescription *description = pango_font_description_from_string(font); // When passing NULL as a language, pango uses the current locale. PangoFontMetrics *metrics = pango_context_get_metrics(pango, description, NULL); @@ -120,7 +119,6 @@ void get_text_metrics(const char *font, int *height, int *baseline) { *height = *baseline + pango_font_metrics_get_descent(metrics) / PANGO_SCALE; pango_font_metrics_unref(metrics); - pango_font_description_free(description); g_object_unref(pango); cairo_destroy(cairo); } diff --git a/include/pango.h b/include/pango.h index 93affc236f..2f14d2bba5 100644 --- a/include/pango.h +++ b/include/pango.h @@ -17,7 +17,7 @@ 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, int *baseline, double scale, bool markup, const char *fmt, ...); -void get_text_metrics(const char *font, int *height, int *baseline); +void get_text_metrics(const PangoFontDescription *font, int *height, int *baseline); void render_text(cairo_t *cairo, const char *font, double scale, bool markup, const char *fmt, ...); diff --git a/include/sway/config.h b/include/sway/config.h index 05678c3342..8939af004a 100644 --- a/include/sway/config.h +++ b/include/sway/config.h @@ -17,6 +17,7 @@ #include "sway/input/tablet.h" #include "sway/tree/root.h" #include "wlr-layer-shell-unstable-v1-protocol.h" +#include // TODO: Refactor this shit @@ -504,7 +505,8 @@ struct sway_config { char *floating_scroll_right_cmd; enum sway_container_layout default_orientation; enum sway_container_layout default_layout; - char *font; + char *font; // Use mostly for IPC. + PangoFontDescription *font_description; // Used internally for rendering and validating. int font_height; int font_baseline; bool pango_markup; diff --git a/sway/commands/font.c b/sway/commands/font.c index 3eda0a9c68..74bb6b9f46 100644 --- a/sway/commands/font.c +++ b/sway/commands/font.c @@ -4,6 +4,7 @@ #include "sway/config.h" #include "log.h" #include "stringop.h" +#include struct cmd_results *cmd_font(int argc, char **argv) { struct cmd_results *error = NULL; @@ -22,6 +23,28 @@ struct cmd_results *cmd_font(int argc, char **argv) { config->font = font; } + // Parse the font early so we can reject it if it's not valid for pango. + // Also avoids re-parsing each time we render text. + PangoFontDescription *font_description = pango_font_description_from_string(config->font); + + const char *family = pango_font_description_get_family(font_description); + if (family == NULL) { + pango_font_description_free(font_description); + return cmd_results_new(CMD_FAILURE, "Invalid font family."); + } + + const gint size = pango_font_description_get_size(font_description); + if (size == 0) { + pango_font_description_free(font_description); + return cmd_results_new(CMD_FAILURE, "Invalid font size."); + } + + if (config->font_description != NULL) { + pango_font_description_free(config->font_description); + } + + config->font_description = font_description; config_update_font_height(); + return cmd_results_new(CMD_SUCCESS, NULL); } diff --git a/sway/config.c b/sway/config.c index 8220ece04f..b41dd871b9 100644 --- a/sway/config.c +++ b/sway/config.c @@ -243,6 +243,7 @@ static void config_defaults(struct sway_config *config) { config->default_layout = L_NONE; config->default_orientation = L_NONE; if (!(config->font = strdup("monospace 10"))) goto cleanup; + config->font_description = pango_font_description_from_string(config->font); config->urgent_timeout = 500; config->focus_on_window_activation = FOWA_URGENT; config->popup_during_fullscreen = POPUP_SMART; @@ -1006,7 +1007,7 @@ int workspace_output_cmp_workspace(const void *a, const void *b) { void config_update_font_height(void) { int prev_max_height = config->font_height; - get_text_metrics(config->font, &config->font_height, &config->font_baseline); + get_text_metrics(config->font_description, &config->font_height, &config->font_baseline); if (config->font_height != prev_max_height) { arrange_root();