module fortplot_text_stub !! Text and annotation functions implementation !! Provides pyplot-style text() and annotate() functions that integrate !! with the global figure and annotation system use iso_fortran_env, only: wp => real64 use fortplot_global, only: global_figure use fortplot_plot_annotations, only: add_text_annotation, add_arrow_annotation use fortplot_annotations, only: COORD_DATA, COORD_FIGURE, COORD_AXIS use fortplot_logging, only: log_error implicit none private public :: text, annotate contains subroutine text(x, y, text_content, coord_type, font_size, rotation, alignment, & has_bbox, ha) !! Add text annotation to the current figure !! !! Parameters: !! x, y: Position coordinates !! text_content: Text to display !! coord_type: Coordinate system (COORD_DATA, COORD_FIGURE, COORD_AXIS) !! font_size: Text size in points !! rotation: Rotation angle in degrees !! alignment: Text alignment (left, center, right) !! has_bbox: Add background box !! ha: Horizontal alignment alias real(wp), intent(in) :: x, y character(len=*), intent(in) :: text_content integer, intent(in), optional :: coord_type character(len=*), intent(in), optional :: alignment, ha real(wp), intent(in), optional :: font_size, rotation logical, intent(in), optional :: has_bbox character(len=16) :: coord_type_str ! Check if global figure is allocated if (.not. allocated(global_figure)) then call log_error("text: No current figure - call figure() first") return end if ! Convert coordinate type to string coord_type_str = 'data' if (present(coord_type)) then select case (coord_type) case (COORD_DATA) coord_type_str = 'data' case (COORD_FIGURE) coord_type_str = 'figure' case (COORD_AXIS) coord_type_str = 'axes' end select end if ! Determine horizontal alignment block character(len=:), allocatable :: ha_str if (present(ha)) then ha_str = ha else if (present(alignment)) then ha_str = alignment else ha_str = '' end if if (len_trim(ha_str) > 0) then call add_text_annotation(global_figure, x, y, text_content, & coord_type=coord_type_str, & font_size=font_size, & rotation=rotation, & ha=ha_str, & bbox=has_bbox) else call add_text_annotation(global_figure, x, y, text_content, & coord_type=coord_type_str, & font_size=font_size, & rotation=rotation, & bbox=has_bbox) end if end block end subroutine text subroutine annotate(text_content, xy, xytext, xy_coord_type, xytext_coord_type, & arrow_style, arrow_color, font_size, has_bbox, alignment, ha) !! Add arrow annotation to the current figure !! !! Parameters: !! text_content: Text to display !! xy: Arrow target coordinates [x, y] !! xytext: Text position coordinates [x, y] (optional, defaults to xy) !! xy_coord_type: Coordinate system for arrow target !! xytext_coord_type: Coordinate system for text position !! arrow_style: Arrow styling properties !! arrow_color: Arrow color specification !! font_size: Text size in points !! has_bbox: Add background box !! alignment: Text alignment !! ha: Horizontal alignment alias character(len=*), intent(in) :: text_content real(wp), dimension(2), intent(in) :: xy real(wp), dimension(2), intent(in), optional :: xytext integer, intent(in), optional :: xy_coord_type, xytext_coord_type character(len=*), intent(in), optional :: arrow_style, arrow_color, & alignment, ha real(wp), intent(in), optional :: font_size logical, intent(in), optional :: has_bbox character(len=16) :: xy_coord_str, xytext_coord_str character(len=:), allocatable :: ha_str real(wp), dimension(2) :: text_pos ! Determine horizontal alignment (Matplotlib-compatible alias handling) if (present(ha)) then ha_str = ha else if (present(alignment)) then ha_str = alignment else ha_str = '' end if ! Check if global figure is allocated if (.not. allocated(global_figure)) then call log_error("annotate: No current figure - call figure() first") return end if ! Set text position (default to xy if not specified) text_pos = xy if (present(xytext)) text_pos = xytext ! Convert coordinate types to strings xy_coord_str = 'data' if (present(xy_coord_type)) then select case (xy_coord_type) case (COORD_DATA) xy_coord_str = 'data' case (COORD_FIGURE) xy_coord_str = 'figure' case (COORD_AXIS) xy_coord_str = 'axes' end select end if xytext_coord_str = xy_coord_str ! Default to same as xy if (present(xytext_coord_type)) then select case (xytext_coord_type) case (COORD_DATA) xytext_coord_str = 'data' case (COORD_FIGURE) xytext_coord_str = 'figure' case (COORD_AXIS) xytext_coord_str = 'axes' end select end if ! Add arrow annotation to current figure if (len_trim(ha_str) > 0) then call add_arrow_annotation(global_figure, text_content, xy, text_pos, & xy_coord_type=xy_coord_str, & xytext_coord_type=xytext_coord_str, & arrowprops=arrow_style, & font_size=font_size, & ha=ha_str, & bbox=has_bbox) else call add_arrow_annotation(global_figure, text_content, xy, text_pos, & xy_coord_type=xy_coord_str, & xytext_coord_type=xytext_coord_str, & arrowprops=arrow_style, & font_size=font_size, & bbox=has_bbox) end if end subroutine annotate end module fortplot_text_stub