fortplot_legend_layout

Shared legend layout calculations following DRY principle

Single Responsibility: Legend box sizing and positioning calculations DRY: Centralized legend layout logic for consistent behavior KISS: Simple, clear calculation functions Uses text system measurements for accurate sizing

Uses

Derived Types

type, public :: legend_box_t

Single Responsibility: Legend box dimensions and position

Components

Type	Visibility		Name
real(kind=wp),	public	::	x
real(kind=wp),	public	::	y
real(kind=wp),	public	::	width
real(kind=wp),	public	::	height
real(kind=wp),	public	::	padding
real(kind=wp),	public	::	padding_x
real(kind=wp),	public	::	entry_height
real(kind=wp),	public	::	entry_spacing
real(kind=wp),	public	::	line_length
real(kind=wp),	public	::	text_spacing

Functions

public function calculate_legend_box(labels, data_width, data_height, num_entries, position, pixel_plot_width, pixel_plot_height) result(box)

Calculate optimal legend box dimensions and position DRY: Centralized legend box calculation logic

Arguments

Type	Intent	Optional		Name
character(len=*),	intent(in)		::	labels(:)
real(kind=wp),	intent(in)		::	data_width
real(kind=wp),	intent(in)		::	data_height
integer,	intent(in)		::	num_entries
integer,	intent(in)		::	position
integer,	intent(in),	optional	::	pixel_plot_width
integer,	intent(in),	optional	::	pixel_plot_height

Return Value type(legend_box_t)

public function get_actual_text_dimensions(label, data_to_pixel_x, data_to_pixel_y) result(dimensions)

Get actual text dimensions using text system measurements
Returns [width, height] in data coordinates

Arguments

Type	Intent		Name
character(len=*),	intent(in)	::	label
real(kind=wp),	intent(in)	::	data_to_pixel_x
real(kind=wp),	intent(in)	::	data_to_pixel_y

Return Value real(kind=wp), (2)

public function get_legend_margins(data_width, data_height) result(margins)

Get appropriate margins for legend placement DRY: Centralized margin calculation

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=wp),	intent(in)			::	data_width
real(kind=wp),	intent(in)			::	data_height

Return Value real(kind=wp), (2)

Subroutines

public subroutine calculate_optimal_legend_dimensions(labels, data_width, data_height, max_text_width, total_text_width, box, pixel_plot_width, pixel_plot_height)

Calculate optimal legend dimensions using actual text system measurements KISS: Based on measured text content, not estimates

Arguments

Type	Intent		Name
character(len=*),	intent(in)	::	labels(:)
real(kind=wp),	intent(in)	::	data_width
real(kind=wp),	intent(in)	::	data_height
real(kind=wp),	intent(out)	::	max_text_width
real(kind=wp),	intent(out)	::	total_text_width
type(legend_box_t),	intent(inout)	::	box
integer,	intent(in)	::	pixel_plot_width
integer,	intent(in)	::	pixel_plot_height

fortplot_legend_layout Module

Contents

Derived Types

Functions

Subroutines

Uses

Derived Types

type, public :: legend_box_t

Components

Functions

public function calculate_legend_box(labels, data_width, data_height, num_entries, position, pixel_plot_width, pixel_plot_height) result(box)

Arguments

Return Value type(legend_box_t)

public function get_actual_text_dimensions(label, data_to_pixel_x, data_to_pixel_y) result(dimensions)

Arguments

Return Value real(kind=wp), (2)

public function get_legend_margins(data_width, data_height) result(margins)

Arguments

Return Value real(kind=wp), (2)

Subroutines

public subroutine calculate_optimal_legend_dimensions(labels, data_width, data_height, max_text_width, total_text_width, box, pixel_plot_width, pixel_plot_height)

Arguments