455 lines
13 KiB
C
455 lines
13 KiB
C
#ifdef HAVE_CONFIG
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# include "config.h"
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#endif
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#include "Elm_Code.h"
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#include "elm_code_widget_private.h"
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static char _breaking_chars[] = " \t,.?!;:*&()[]{}";
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static Elm_Code_Widget_Selection_Data *
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_elm_code_widget_selection_new()
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{
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Elm_Code_Widget_Selection_Data *data;
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data = calloc(1, sizeof(Elm_Code_Widget_Selection_Data));
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return data;
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}
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static void
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_elm_code_widget_selection_limit(Evas_Object *widget EINA_UNUSED, Elm_Code_Widget_Data *pd,
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unsigned int *row, unsigned int *col)
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{
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Elm_Code_Line *line;
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Elm_Code_File *file;
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unsigned int width;
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file = pd->code->file;
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if (*row > elm_code_file_lines_get(file))
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*row = elm_code_file_lines_get(file);
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line = elm_code_file_line_get(file, *row);
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width = elm_code_widget_line_text_column_width_get(widget, line);
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if (*col > width + 1)
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*col = width + 1;
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if (*col < 1)
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*col = 1;
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}
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EAPI void
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elm_code_widget_selection_start(Evas_Object *widget,
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unsigned int line, unsigned int col)
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{
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Elm_Code_Widget_Data *pd;
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Elm_Code_Widget_Selection_Data *selection;
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pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
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_elm_code_widget_selection_limit(widget, pd, &line, &col);
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if (!pd->selection)
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{
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selection = _elm_code_widget_selection_new();
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selection->end_line = line;
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selection->end_col = col;
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pd->selection = selection;
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}
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pd->selection->start_line = line;
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pd->selection->start_col = col;
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eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_SELECTION_CHANGED, widget);
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elm_obj_code_widget_cursor_position_set(widget, col, line);
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}
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EAPI void
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elm_code_widget_selection_end(Evas_Object *widget,
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unsigned int line, unsigned int col)
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{
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Elm_Code_Widget_Data *pd;
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Elm_Code_Widget_Selection_Data *selection;
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pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
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_elm_code_widget_selection_limit(widget, pd, &line, &col);
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if (!pd->selection)
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{
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selection = _elm_code_widget_selection_new();
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selection->start_line = line;
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selection->start_col = col;
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pd->selection = selection;
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}
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pd->selection->end_line = line;
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pd->selection->end_col = col;
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eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_SELECTION_CHANGED, widget);
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}
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EAPI Elm_Code_Widget_Selection_Data *
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elm_code_widget_selection_normalized_get(Evas_Object *widget)
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{
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Elm_Code_Widget_Data *pd;
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Elm_Code_Widget_Selection_Data *selection;
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Eina_Bool reverse;
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pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
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selection = _elm_code_widget_selection_new();
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if (!pd->selection)
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{
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selection->start_line = selection->end_line = 1;
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selection->start_col = selection->end_col = 1;
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return selection;
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}
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if (pd->selection->start_line == pd->selection->end_line)
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reverse = pd->selection->start_col > pd->selection->end_col;
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else
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reverse = pd->selection->start_line > pd->selection->end_line;
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if (reverse)
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{
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selection->start_line = pd->selection->end_line;
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selection->start_col = pd->selection->end_col;
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selection->end_line = pd->selection->start_line;
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selection->end_col = pd->selection->start_col;
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}
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else
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{
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selection->start_line = pd->selection->start_line;
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selection->start_col = pd->selection->start_col;
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selection->end_line = pd->selection->end_line;
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selection->end_col = pd->selection->end_col;
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}
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return selection;
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}
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EAPI void
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elm_code_widget_selection_clear(Evas_Object *widget)
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{
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Elm_Code_Widget_Data *pd;
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pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
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if (!pd->selection)
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return;
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free(pd->selection);
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pd->selection = NULL;
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eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_SELECTION_CLEARED, widget);
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}
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static void
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_elm_code_widget_selection_delete_single(Elm_Code_Widget *widget, Elm_Code_Widget_Data *pd)
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{
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Elm_Code_Line *line;
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const char *old;
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unsigned int old_length, start, end, length;
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char *content;
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Elm_Code_Widget_Selection_Data *selection;
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selection = elm_code_widget_selection_normalized_get(widget);
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line = elm_code_file_line_get(pd->code->file, selection->start_line);
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old = elm_code_line_text_get(line, &old_length);
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start = elm_code_widget_line_text_position_for_column_get(widget, line, selection->start_col);
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end = elm_code_widget_line_text_position_for_column_get(widget, line, selection->end_col);
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length = line->length - (end - start + 1);
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if (end == line->length)
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{
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length = line->length - (end - start);
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content = malloc(sizeof(char) * length);
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strncpy(content, old, start);
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}
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else
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{
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length = line->length - (end - start + 1);
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content = malloc(sizeof(char) * length);
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strncpy(content, old, start);
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strncpy(content + start, old + end + 1,
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old_length - (end + 1));
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}
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elm_code_line_text_set(line, content, length);
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free(content);
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free(selection);
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}
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static void
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_elm_code_widget_selection_delete_multi(Elm_Code_Widget *widget, Elm_Code_Widget_Data *pd)
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{
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Elm_Code_Line *line;
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const char *first, *last;
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unsigned int last_length, start, end, length, i;
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char *content;
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Elm_Code_Widget_Selection_Data *selection;
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if (pd->selection->end_line == pd->selection->start_line)
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return;
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selection = elm_code_widget_selection_normalized_get(widget);
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line = elm_code_file_line_get(pd->code->file, selection->start_line);
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first = elm_code_line_text_get(line, NULL);
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start = elm_code_widget_line_text_position_for_column_get(widget, line, selection->start_col);
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line = elm_code_file_line_get(pd->code->file, selection->end_line);
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last = elm_code_line_text_get(line, &last_length);
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end = elm_code_widget_line_text_position_for_column_get(widget, line, selection->end_col);
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if (last_length == end)
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{
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length = start + last_length - end;
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content = malloc(sizeof(char) * length);
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strncpy(content, first, start);
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}
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else
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{
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length = start + last_length - (end + 1);
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content = malloc(sizeof(char) * length);
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strncpy(content, first, start);
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strncpy(content + start, last + end + 1, last_length - (end + 1));
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}
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for (i = line->number; i > selection->start_line; i--)
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elm_code_file_line_remove(pd->code->file, i);
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line = elm_code_file_line_get(pd->code->file, selection->start_line);
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elm_code_line_text_set(line, content, length);
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free(content);
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free(selection);
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}
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EAPI void
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elm_code_widget_selection_delete(Evas_Object *widget)
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{
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Elm_Code_Widget_Data *pd;
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pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
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if (!pd->selection)
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return;
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if (pd->selection->start_line == pd->selection->end_line)
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_elm_code_widget_selection_delete_single(widget, pd);
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else
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_elm_code_widget_selection_delete_multi(widget, pd);
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free(pd->selection);
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pd->selection = NULL;
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eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_SELECTION_CLEARED, widget);
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}
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EAPI void
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elm_code_widget_selection_select_line(Evas_Object *widget, unsigned int line)
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{
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Elm_Code_Widget_Data *pd;
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Elm_Code_Line *lineobj;
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pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
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lineobj = elm_code_file_line_get(pd->code->file, line);
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if (!lineobj)
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return;
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elm_code_widget_selection_start(widget, line, 1);
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elm_code_widget_selection_end(widget, line, lineobj->length);
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}
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static Eina_Bool
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_elm_code_widget_selection_char_breaks(char chr)
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{
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unsigned int i;
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if (chr == 0)
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return EINA_TRUE;
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for (i = 0; i < sizeof(_breaking_chars); i++)
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if (chr == _breaking_chars[i])
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return EINA_TRUE;
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return EINA_FALSE;
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}
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EAPI void
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elm_code_widget_selection_select_word(Evas_Object *widget, unsigned int line, unsigned int col)
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{
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Elm_Code_Widget_Data *pd;
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Elm_Code_Line *lineobj;
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unsigned int colpos, length, pos;
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const char *content;
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pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
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lineobj = elm_code_file_line_get(pd->code->file, line);
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content = elm_code_line_text_get(lineobj, &length);
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_elm_code_widget_selection_limit(widget, pd, &line, &col);
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colpos = elm_code_widget_line_text_position_for_column_get(widget, lineobj, col);
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pos = colpos;
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while (pos > 0)
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{
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if (_elm_code_widget_selection_char_breaks(content[pos - 1]))
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break;
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pos--;
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}
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elm_code_widget_selection_start(widget, line,
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elm_code_widget_line_text_column_width_to_position(widget, lineobj, pos));
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pos = colpos;
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while (pos < length - 1)
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{
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if (_elm_code_widget_selection_char_breaks(content[pos + 1]))
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break;
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pos++;
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}
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elm_code_widget_selection_end(widget, line,
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elm_code_widget_line_text_column_width_to_position(widget, lineobj, pos));
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}
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EAPI char *
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elm_code_widget_selection_text_get(Evas_Object *widget)
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{
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Elm_Code_Widget_Data *pd;
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Elm_Code_Widget_Selection_Data *selection;
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char *text;
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pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
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if (!pd->selection)
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return strdup("");
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selection = elm_code_widget_selection_normalized_get(widget);
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text = elm_code_widget_text_between_positions_get(widget,
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selection->start_col, selection->start_line,
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selection->end_col, selection->end_line);
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free(selection);
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return text;
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}
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static void
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_selection_loss_cb(void *data, Elm_Sel_Type selection EINA_UNUSED)
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{
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Elm_Code_Widget *widget;
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widget = (Elm_Code_Widget *)data;
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// TODO we need to know whih selection we are clearing!
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// elm_code_widget_selection_clear(widget);
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}
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EAPI void
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elm_code_widget_selection_cut(Evas_Object *widget)
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{
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char *text;
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text = elm_code_widget_selection_text_get(widget);
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elm_cnp_selection_set(widget, ELM_SEL_TYPE_CLIPBOARD, ELM_SEL_FORMAT_TEXT, text, strlen(text));
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elm_cnp_selection_loss_callback_set(widget, ELM_SEL_TYPE_CLIPBOARD, _selection_loss_cb, widget);
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free(text);
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elm_code_widget_selection_delete(widget);
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}
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EAPI void
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elm_code_widget_selection_copy(Evas_Object *widget)
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{
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char *text;
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text = elm_code_widget_selection_text_get(widget);
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elm_cnp_selection_set(widget, ELM_SEL_TYPE_CLIPBOARD, ELM_SEL_FORMAT_TEXT, text, strlen(text));
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elm_cnp_selection_loss_callback_set(widget, ELM_SEL_TYPE_CLIPBOARD, _selection_loss_cb, widget);
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free(text);
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}
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static void
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_selection_paste_single(Elm_Code_Widget *widget, Elm_Code *code,
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unsigned int col, unsigned int row, const char *text, unsigned int len)
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{
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Elm_Code_Line *line;
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unsigned int position, newcol;
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line = elm_code_file_line_get(code->file, row);
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position = elm_code_widget_line_text_position_for_column_get(widget, line, col);
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elm_code_line_text_insert(line, position, text, len);
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newcol = elm_code_widget_line_text_column_width_to_position(widget, line, position + len);
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elm_obj_code_widget_cursor_position_set(widget, newcol, row);
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}
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static void
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_selection_paste_multi(Elm_Code_Widget *widget, Elm_Code *code,
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unsigned int col, unsigned int row, const char *text, unsigned int len)
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{
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Elm_Code_Line *line;
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unsigned int position, newrow, remain;
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int nlpos;
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short nllen;
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char *ptr;
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line = elm_code_file_line_get(code->file, row);
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position = elm_code_widget_line_text_position_for_column_get(widget, line, col);
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elm_code_line_split_at(line, position);
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newrow = row;
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ptr = (char *)text;
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remain = len;
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while ((nlpos = elm_code_text_newlinenpos(ptr, remain, &nllen)) != ELM_CODE_TEXT_NOT_FOUND)
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{
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if (newrow == row)
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_selection_paste_single(widget, code, col, row, text, nlpos);
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else
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elm_code_file_line_insert(code->file, newrow, ptr, nlpos, NULL);
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remain -= nlpos + nllen;
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ptr += nlpos + nllen;
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newrow++;
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}
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_selection_paste_single(widget, code, 1, newrow, ptr, len - (ptr - text));
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}
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static Eina_Bool
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_selection_paste_cb(void *data, Evas_Object *obj EINA_UNUSED, Elm_Selection_Data *ev)
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{
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Elm_Code *code;
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Elm_Code_Widget *widget;
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unsigned int row, col;
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widget = (Elm_Code_Widget *)data;
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if (ev->format != ELM_SEL_FORMAT_TEXT)
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return EINA_TRUE;
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if (ev->len <= 0)
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return EINA_TRUE;
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code = elm_obj_code_widget_code_get(widget);
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elm_obj_code_widget_cursor_position_get(widget, &col, &row);
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if (elm_code_text_newlinenpos(ev->data, ev->len, NULL) == ELM_CODE_TEXT_NOT_FOUND)
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_selection_paste_single(widget, code, col, row, ev->data, ev->len - 1);
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else
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_selection_paste_multi(widget, code, col, row, ev->data, ev->len - 1);
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return EINA_TRUE;
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}
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EAPI void
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elm_code_widget_selection_paste(Evas_Object *widget)
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{
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elm_code_widget_selection_delete(widget);
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elm_cnp_selection_get(widget, ELM_SEL_TYPE_CLIPBOARD, ELM_SEL_FORMAT_TEXT, _selection_paste_cb, widget);
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}
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