void guac_terminal_display_select()

in src/terminal/display.c [896:990]

• 56 lines of code
• 9 McCabe index (conditional complexity)

void guac_terminal_display_select(guac_terminal_display* display,
        int start_row, int start_col, int end_row, int end_col) {

    guac_socket* socket = display->client->socket;
    guac_layer* select_layer = display->select_layer;

    /* Do nothing if selection is unchanged */
    if (display->text_selected
            && display->selection_start_row    == start_row
            && display->selection_start_column == start_col
            && display->selection_end_row      == end_row
            && display->selection_end_column   == end_col)
        return;

    /* Text is now selected */
    display->text_selected = true;

    display->selection_start_row = start_row;
    display->selection_start_column = start_col;
    display->selection_end_row = end_row;
    display->selection_end_column = end_col;

    /* If single row, just need one rectangle */
    if (start_row == end_row) {

        /* Ensure proper ordering of columns */
        if (start_col > end_col) {
            int temp = start_col;
            start_col = end_col;
            end_col = temp;
        }

        /* Select characters between columns */
        guac_protocol_send_rect(socket, select_layer,

                start_col * display->char_width,
                start_row * display->char_height,

                (end_col - start_col + 1) * display->char_width,
                display->char_height);

    }

    /* Otherwise, need three */
    else {

        /* Ensure proper ordering of start and end coords */
        if (start_row > end_row) {

            int temp;

            temp = start_row;
            start_row = end_row;
            end_row = temp;

            temp = start_col;
            start_col = end_col;
            end_col = temp;

        }

        /* First row */
        guac_protocol_send_rect(socket, select_layer,

                start_col * display->char_width,
                start_row * display->char_height,

                display->width * display->char_width,
                display->char_height);

        /* Middle */
        guac_protocol_send_rect(socket, select_layer,

                0,
                (start_row + 1) * display->char_height,

                display->width * display->char_width,
                (end_row - start_row - 1) * display->char_height);

        /* Last row */
        guac_protocol_send_rect(socket, select_layer,

                0,
                end_row * display->char_height,

                (end_col + 1) * display->char_width,
                display->char_height);

    }

    /* Draw new selection, erasing old */
    guac_protocol_send_cfill(socket, GUAC_COMP_SRC, select_layer,
            0x00, 0x80, 0xFF, 0x60);

}