From 49a3fb3d1db0e85f354ebd5af17725b50e1193e9 Mon Sep 17 00:00:00 2001 From: Jan Arne Petersen Date: Wed, 16 Jan 2013 21:26:41 +0100 Subject: [PATCH] keyboard: Add support for pre-edit styling Adds a button to the keyboard to support different styles of pre-edit styling. Signed-off-by: Jan Arne Petersen --- clients/keyboard.c | 85 +++++++++++++++++++++++++++++++++------------- 1 file changed, 61 insertions(+), 24 deletions(-) diff --git a/clients/keyboard.c b/clients/keyboard.c index c1f2a7ff..a5abacf8 100644 --- a/clients/keyboard.c +++ b/clients/keyboard.c @@ -38,6 +38,7 @@ struct virtual_keyboard { struct input_method_context *context; struct display *display; char *preedit_string; + uint32_t preedit_style; struct { xkb_mod_mask_t shift_mask; } keysym; @@ -55,7 +56,8 @@ enum key_type { keytype_arrow_up, keytype_arrow_left, keytype_arrow_right, - keytype_arrow_down + keytype_arrow_down, + keytype_style }; struct key { @@ -105,12 +107,23 @@ static const struct key keys[] = { { keytype_switch, "ABC", "abc", 1}, { keytype_symbols, "?123", "?123", 1}, - { keytype_space, "", "", 6}, + { keytype_space, "", "", 5}, { keytype_arrow_up, "/\\", "/\\", 1}, { keytype_arrow_left, "<", "<", 1}, { keytype_arrow_right, ">", ">", 1}, { keytype_arrow_down, "\\/", "\\/", 1}, - { keytype_symbols, "?123", "?123", 1} + { keytype_style, "", "", 2} +}; + +static const char *style_labels[] = { + "none", + "default", + "active", + "inactive", + "highlight", + "underline", + "selection", + "incorrect" }; static const unsigned int columns = 12; @@ -132,10 +145,23 @@ struct keyboard { enum keyboard_state state; }; +static const char * +label_from_key(struct keyboard *keyboard, + const struct key *key) +{ + if (key->key_type == keytype_style) + return style_labels[keyboard->keyboard->preedit_style]; + + if (keyboard->state == keyboardstate_default) + return key->label; + else + return key->alt; +} + static void -draw_key(const struct key *key, +draw_key(struct keyboard *keyboard, + const struct key *key, cairo_t *cr, - enum keyboard_state state, unsigned int row, unsigned int col) { @@ -156,7 +182,7 @@ draw_key(const struct key *key, cairo_stroke(cr); /* Paint text */ - label = state == keyboardstate_default ? key->label : key->alt; + label = label_from_key(keyboard, key); cairo_text_extents(cr, label, &extents); cairo_translate(cr, @@ -201,7 +227,7 @@ redraw_handler(struct widget *widget, void *data) for (i = 0; i < sizeof(keys) / sizeof(*keys); ++i) { cairo_set_source_rgb(cr, 0, 0, 0); - draw_key(&keys[i], cr, keyboard->state, row, col); + draw_key(keyboard, &keys[i], cr, row, col); col += keys[i].width; if (col >= columns) { row += 1; @@ -242,6 +268,24 @@ virtual_keyboard_commit_preedit(struct virtual_keyboard *keyboard) keyboard->preedit_string = strdup(""); } +static void +virtual_keyboard_send_preedit(struct virtual_keyboard *keyboard) +{ + if (keyboard->preedit_style) + input_method_context_preedit_styling(keyboard->context, + keyboard->serial, + 0, + strlen(keyboard->preedit_string), + keyboard->preedit_style); + input_method_context_preedit_cursor(keyboard->context, + keyboard->serial, + strlen(keyboard->preedit_string)); + input_method_context_preedit_string(keyboard->context, + keyboard->serial, + keyboard->preedit_string, + keyboard->preedit_string); +} + static void keyboard_handle_key(struct keyboard *keyboard, uint32_t time, const struct key *key, struct input *input, enum wl_pointer_button_state state) { @@ -256,13 +300,7 @@ keyboard_handle_key(struct keyboard *keyboard, uint32_t time, const struct key * keyboard->keyboard->preedit_string = strcat(keyboard->keyboard->preedit_string, label); - input_method_context_preedit_cursor(keyboard->keyboard->context, - keyboard->keyboard->serial, - strlen(keyboard->keyboard->preedit_string)); - input_method_context_preedit_string(keyboard->keyboard->context, - keyboard->keyboard->serial, - keyboard->keyboard->preedit_string, - keyboard->keyboard->preedit_string); + virtual_keyboard_send_preedit(keyboard->keyboard); break; case keytype_backspace: if (state != WL_POINTER_BUTTON_STATE_PRESSED) @@ -274,13 +312,7 @@ keyboard_handle_key(struct keyboard *keyboard, uint32_t time, const struct key * -1, 1); } else { keyboard->keyboard->preedit_string[strlen(keyboard->keyboard->preedit_string) - 1] = '\0'; - input_method_context_preedit_cursor(keyboard->keyboard->context, - keyboard->keyboard->serial, - strlen(keyboard->keyboard->preedit_string)); - input_method_context_preedit_string(keyboard->keyboard->context, - keyboard->keyboard->serial, - keyboard->keyboard->preedit_string, - keyboard->keyboard->preedit_string); + virtual_keyboard_send_preedit(keyboard->keyboard); } break; case keytype_enter: @@ -344,6 +376,12 @@ keyboard_handle_key(struct keyboard *keyboard, uint32_t time, const struct key * time, XKB_KEY_Down, key_state, mod_mask); break; + case keytype_style: + if (state != WL_POINTER_BUTTON_STATE_PRESSED) + break; + keyboard->keyboard->preedit_style = (keyboard->keyboard->preedit_style + 1) % 8; /* TODO */ + virtual_keyboard_send_preedit(keyboard->keyboard); + break; } } @@ -536,15 +574,14 @@ main(int argc, char *argv[]) { struct virtual_keyboard virtual_keyboard; + memset(&virtual_keyboard, 0, sizeof virtual_keyboard); + virtual_keyboard.display = display_create(argc, argv); if (virtual_keyboard.display == NULL) { fprintf(stderr, "failed to create display: %m\n"); return -1; } - virtual_keyboard.context = NULL; - virtual_keyboard.preedit_string = NULL; - display_set_user_data(virtual_keyboard.display, &virtual_keyboard); display_set_global_handler(virtual_keyboard.display, global_handler); display_set_output_configure_handler(virtual_keyboard.display, handle_output_configure);