diff options
| -rw-r--r-- | clients/editor.c | 76 |
1 files changed, 75 insertions, 1 deletions
diff --git a/clients/editor.c b/clients/editor.c index 295018a3..3056bdcd 100644 --- a/clients/editor.c +++ b/clients/editor.c @@ -50,6 +50,7 @@ struct text_entry { char *text; int active; uint32_t cursor; + uint32_t anchor; struct text_model *model; struct text_layout *layout; }; @@ -309,6 +310,7 @@ text_entry_create(struct editor *editor, const char *text) entry->text = strdup(text); entry->active = 0; entry->cursor = strlen(text); + entry->anchor = entry->cursor; entry->model = text_model_factory_create_text_model(editor->text_model_factory); text_model_add_listener(entry->model, &text_model_listener, entry); @@ -418,6 +420,7 @@ text_entry_insert_at_cursor(struct text_entry *entry, const char *text) free(entry->text); entry->text = new_text; entry->cursor += strlen(text); + entry->anchor += strlen(text); text_layout_set_text(entry->layout, entry->text); } @@ -432,6 +435,50 @@ text_entry_set_cursor_position(struct text_entry *entry, } static void +text_entry_set_anchor_position(struct text_entry *entry, + int32_t x, int32_t y) +{ + entry->anchor = text_layout_xy_to_index(entry->layout, x, y); + + widget_schedule_redraw(entry->widget); +} + +static void +text_entry_draw_selection(struct text_entry *entry, cairo_t *cr) +{ + cairo_text_extents_t extents; + uint32_t start_index = entry->anchor < entry->cursor ? entry->anchor : entry->cursor; + uint32_t end_index = entry->anchor < entry->cursor ? entry->cursor : entry->anchor; + cairo_rectangle_t start; + cairo_rectangle_t end; + + if (entry->anchor == entry->cursor) + return; + + text_layout_extents(entry->layout, &extents); + + text_layout_index_to_pos(entry->layout, start_index, &start); + text_layout_index_to_pos(entry->layout, end_index, &end); + + cairo_save (cr); + + cairo_set_source_rgba(cr, 0.0, 0.0, 1.0, 1.0); + cairo_rectangle(cr, + start.x, extents.y_bearing + extents.height + 2, + end.x - start.x, -extents.height - 4); + cairo_fill(cr); + + cairo_rectangle(cr, + start.x, extents.y_bearing + extents.height, + end.x - start.x, -extents.height); + cairo_clip(cr); + cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0); + text_layout_draw(entry->layout, cr); + + cairo_restore (cr); +} + +static void text_entry_draw_cursor(struct text_entry *entry, cairo_t *cr) { cairo_text_extents_t extents; @@ -484,6 +531,8 @@ text_entry_redraw_handler(struct widget *widget, void *data) cairo_translate(cr, 10, allocation.height / 2); text_layout_draw(entry->layout, cr); + text_entry_draw_selection(entry, cr); + text_entry_draw_cursor(entry, cr); cairo_pop_group_to_source(cr); @@ -493,6 +542,23 @@ text_entry_redraw_handler(struct widget *widget, void *data) cairo_surface_destroy(surface); } +static int +text_entry_motion_handler(struct widget *widget, + struct input *input, uint32_t time, + float x, float y, void *data) +{ + struct text_entry *entry = data; + struct rectangle allocation; + + widget_get_allocation(entry->widget, &allocation); + + text_entry_set_cursor_position(entry, + x - allocation.x, + y - allocation.y); + + return CURSOR_IBEAM; +} + static void text_entry_button_handler(struct widget *widget, struct input *input, uint32_t time, @@ -510,7 +576,7 @@ text_entry_button_handler(struct widget *widget, return; } - text_entry_set_cursor_position(entry, + text_entry_set_cursor_position(entry, x - allocation.x, y - allocation.y); @@ -518,6 +584,14 @@ text_entry_button_handler(struct widget *widget, struct wl_seat *seat = input_get_seat(input); text_entry_activate(entry, seat); + + text_entry_set_anchor_position(entry, + x - allocation.x, + y - allocation.y); + + widget_set_motion_handler(entry->widget, text_entry_motion_handler); + } else { + widget_set_motion_handler(entry->widget, NULL); } } |