gui2::image_shape Class Reference

#include <canvas_private.hpp>

Inheritance diagram for gui2::image_shape:

Public Member Functions
	image_shape (const config &cfg, wfl::action_function_symbol_table &functions)
	Constructor. More...
void	draw (wfl::map_formula_callable &variables) override
	Draws the canvas. More...
Public Member Functions inherited from gui2::canvas::shape
	shape (const config &cfg)
virtual	~shape ()
bool	immutable () const

Private Types
enum class	resize_mode {   scale , scale_sharp , stretch , tile ,   tile_center , tile_highres }
	Determines the way an image will be resized. More...

Private Member Functions
resize_mode	get_resize_mode (const std::string &resize_mode)
	Converts a string to a resize mode. More...

Static Private Member Functions
static void	dimension_validation (unsigned value, const std::string &name, const std::string &key)

Private Attributes
typed_formula< unsigned >	x_
	The x coordinate of the image. More...
typed_formula< unsigned >	y_
	The y coordinate of the image. More...
typed_formula< unsigned >	w_
	The width of the image. More...
typed_formula< unsigned >	h_
	The height of the image. More...
typed_formula< std::string >	image_name_
	Name of the image. More...
resize_mode	resize_mode_
	The resize mode for an image. More...
typed_formula< bool >	mirror_
	Mirror the image over the vertical axis. More...
wfl::formula	actions_formula_

Detailed Description

Definition at line 177 of file canvas_private.hpp.

Member Enumeration Documentation

resize_mode

enum gui2::image_shape::resize_mode

strongprivate

Determines the way an image will be resized.

If the image is smaller is needed it needs to resized, how is determined by the value of this enum.

Enumerator
scale
scale_sharp
stretch
tile
tile_center
tile_highres

Definition at line 211 of file canvas_private.hpp.

Constructor & Destructor Documentation

image_shape()

gui2::image_shape::image_shape	(	const config &	cfg,
		wfl::action_function_symbol_table &	functions
	)

Constructor.

Parameters

cfg	The config object to define the image.
functions	WFL functions to execute.

Definition at line 255 of file canvas.cpp.

References DBG_GUI_P, and debug.

Member Function Documentation

dimension_validation()

void gui2::image_shape::dimension_validation ( unsigned  value, const std::string &  name, const std::string &  key  )

staticprivate

Definition at line 272 of file canvas.cpp.

References _(), and VALIDATE_WITH_DEV_MESSAGE.

Referenced by draw().

draw()

void gui2::image_shape::draw ( wfl::map_formula_callable &  variables )

overridevirtual

Draws the canvas.

Parameters

variables

The canvas can have formulas in it's definition, this parameter contains the values for these formulas.

Todo:

formulas are now recalculated every draw cycle which is a bit silly unless there has been a resize. So to optimize we should use an extra flag or do the calculation in a separate routine.

Implements gui2::canvas::shape.

Definition at line 281 of file canvas.cpp.

References actions_formula_, wfl::map_formula_callable::add(), wfl::variant::as_bool(), draw::blit(), DBG_GUI_D, dimension_validation(), ERR_GUI_D, wfl::formula::evaluate(), wfl::variant::execute_variant(), wfl::formula_callable::fake_ptr(), draw::flipped(), image::get_texture(), texture::h(), h, h_, wfl::formula_callable::has_key(), image_name_, image::linear, mirror_, image::nearest, wfl::formula_callable::query_value(), resize_mode_, scale, scale_sharp, stretch, tile, tile_center, tile_highres, draw::tiled(), draw::tiled_highres(), w, texture::w(), w_, x_, and y_.

get_resize_mode()

image_shape::resize_mode gui2::image_shape::get_resize_mode ( const std::string &  resize_mode )

private

Converts a string to a resize mode.

Definition at line 385 of file canvas.cpp.

References ERR_GUI_E, scale, scale_sharp, stretch, tile, tile_center, and tile_highres.

Member Data Documentation

actions_formula_

wfl::formula gui2::image_shape::actions_formula_

private

Definition at line 230 of file canvas_private.hpp.

Referenced by draw().

h_

typed_formula<unsigned> gui2::image_shape::h_

private

The height of the image.

Definition at line 194 of file canvas_private.hpp.

Referenced by draw().

image_name_

typed_formula<std::string> gui2::image_shape::image_name_

private

Name of the image.

This value is only used when the image name is a formula. If it isn't a formula the image will be loaded in the constructor. If it's a formula it will be loaded every draw cycles. This allows 'changing' images.

Definition at line 203 of file canvas_private.hpp.

Referenced by draw().

mirror_

typed_formula<bool> gui2::image_shape::mirror_

private

Mirror the image over the vertical axis.

Definition at line 227 of file canvas_private.hpp.

Referenced by draw().

resize_mode_

resize_mode gui2::image_shape::resize_mode_

private

The resize mode for an image.

Definition at line 224 of file canvas_private.hpp.

Referenced by draw().

w_

typed_formula<unsigned> gui2::image_shape::w_

private

The width of the image.

Definition at line 193 of file canvas_private.hpp.

Referenced by draw().

x_

typed_formula<unsigned> gui2::image_shape::x_

private

The x coordinate of the image.

Definition at line 191 of file canvas_private.hpp.

Referenced by draw().

y_

typed_formula<unsigned> gui2::image_shape::y_

private

The y coordinate of the image.

Definition at line 192 of file canvas_private.hpp.

Referenced by draw().

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The documentation for this class was generated from the following files:

• gui/core/canvas_private.hpp
• gui/core/canvas.cpp