uiengine

package
v0.0.0-...-c4945e0 Latest Latest
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 Go to latest Published: Mar 7, 2021 License: MIT Imports: 19 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	VERTICAL   = 0x1
	HORIZONTAL = 0x2
)
View Source 
const (
	X = 0
	Y = 1
	Z = 2
)
View Source 
const (
	FIT  = 0x0001
	FULL = 0x2
)

Simple layout engine for Window

Variables

This section is empty.

Functions

func CreateTexture 

func CreateTexture(glctx gl.Context, c image_color.RGBA) (tex gl.Texture, err error)

CreateTexture reads and decodes an image from the asset repository and creates a texture object based on the full dimensions of the image.

func LoadAsset 

func LoadAsset(name string) ([]byte, error)

func LoadProgram 

func LoadProgram(glctx gl.Context, vertexAsset, fragmentAsset string) (p gl.Program, err error)

LoadProgram reads shader sources from the asset repository, compiles, and links them into a program.

func LoadTexture 

func LoadTexture(glctx gl.Context, name string) (tex gl.Texture, err error)

LoadTexture reads and decodes an image from the asset repository and creates a texture object based on the full dimensions of the image.

Types

type BaseWidget 

type BaseWidget struct {
	// contains filtered or unexported fields
}

func CreateBaseWidget 

func CreateBaseWidget(ui *UiEngine, min, max Point, zLevel float32) *BaseWidget

func (*BaseWidget) Build 

func (base *BaseWidget) Build(ui *UiEngine)

func (*BaseWidget) CreateDisplayGeom 

func (base *BaseWidget) CreateDisplayGeom(ui *UiEngine)

CreateDisplayGeom - Creates the geometry that is used for rendering the widget to screen

func (*BaseWidget) Draw 

func (base *BaseWidget) Draw(ui *UiEngine, hint bool)

type Button 

type Button struct {
	// contains filtered or unexported fields
}

func CreateButton 

func CreateButton(text string) *Button

func (*Button) Build 

func (b *Button) Build(ui *UiEngine)

func (*Button) CallHandler 

func (b *Button) CallHandler() interface{}

func (*Button) CreateTextTexture 

func (b *Button) CreateTextTexture(ui *UiEngine)

func (*Button) Draw 

func (b *Button) Draw(ui *UiEngine)

func (*Button) Pressed 

func (b *Button) Pressed(ui *UiEngine, touchx, touchy float32) bool

func (*Button) RegisterHandler 

func (b *Button) RegisterHandler(handler interface{}, handlerData interface{})

func (*Button) SetText 

func (b *Button) SetText(ui *UiEngine, text string)

func (*Button) UpdateTexture 

func (b *Button) UpdateTexture(ui *UiEngine, force bool)

type ButtonOld 

type ButtonOld struct {
	// contains filtered or unexported fields
}

FIXME Remove after refactoring UI Code

type DeviceSpecs 

type DeviceSpecs struct {
	ScreenDim   [2]int
	AspectRatio float32
	PixelsPerPt float32
}

type DisplayGeom 

type DisplayGeom struct {
	// contains filtered or unexported fields
}

DisplayGeom - Object containing all the information required to draw 

a rectangle to the screen

func CreateDisplayGeom 

func CreateDisplayGeom(glctx gl.Context, xmin, ymin, xmax, ymax, zlevel, ar float32) *DisplayGeom

ar = Aspect Ratio

type FPS 

type FPS struct {
	// contains filtered or unexported fields
}

FPS draws a count of the frames rendered per second.

func NewFPS 

func NewFPS() *FPS

NewFPS creates an FPS tied to the current GL context.

func (*FPS) GetFps 

func (p *FPS) GetFps() int

Draw draws the per second framerate in the bottom-left of the screen.

type FontEngine 

type FontEngine struct {
	// contains filtered or unexported fields
}

func CreateFontEngine 

func CreateFontEngine(device *DeviceSpecs) *FontEngine

func (*FontEngine) CenterText 

func (fe *FontEngine) CenterText(text string, xmax, ymax int) fixed.Point26_6

func (*FontEngine) PtToPx 

func (fe *FontEngine) PtToPx(p int) int

func (*FontEngine) RenderText 

func (fe *FontEngine) RenderText(text string, xmax, ymax int) *image.RGBA

func (*FontEngine) RenderTextCustom 

func (fe *FontEngine) RenderTextCustom(text string, xmax, ymax int, col image_color.RGBA) *image.RGBA

RenderText - Renders text using the freetype font

func (*FontEngine) SetFontSize 

func (fe *FontEngine) SetFontSize(size int)

Sets the font size to be used for rendering text using the FontEngine

func (*FontEngine) SetHinting 

func (fe *FontEngine) SetHinting(hinting string)

Sets the options of if font hinting (none|full) is to be used

type Label 

type Label struct {
	// contains filtered or unexported fields
}

func CreateLabel 

func CreateLabel(text string) *Label

func (*Label) Build 

func (l *Label) Build(ui *UiEngine)

func (*Label) CreateTextTexture 

func (l *Label) CreateTextTexture(ui *UiEngine)

CreateTextTexture creares a text texture based on label text This method shares a decent bit of code with Button::CreateTextTexture, refactor as utility

func (*Label) Draw 

func (l *Label) Draw(ui *UiEngine)

func (*Label) SetText 

func (l *Label) SetText(ui *UiEngine, text string)

func (*Label) UpdateTexture 

func (l *Label) UpdateTexture(ui *UiEngine, force bool)

type Layout 

type Layout struct {
	// contains filtered or unexported fields
}

func (*Layout) AddButton 

func (l *Layout) AddButton(text string) *Button

func (*Layout) AddLabel 

func (l *Layout) AddLabel(text string) *Label

func (*Layout) AddSlider 

func (l *Layout) AddSlider(label string, initialValue interface{}) *Slider

func (*Layout) Build 

func (l *Layout) Build(ui *UiEngine)

Build - This method sizes all the widgets in the layout accorting to the layoutType

func (*Layout) BuildElement 

func (l *Layout) BuildElement(ui *UiEngine, index int, min, max Point)

func (*Layout) Draw 

func (l *Layout) Draw(ui *UiEngine)

func (*Layout) Init 

func (l *Layout) Init(ui *UiEngine, min, max Point, zLevel float32, layoutType int)

func (*Layout) Pressed 

func (l *Layout) Pressed(ui *UiEngine, touchx, touchy float32)

func (*Layout) UpdateTexture 

func (l *Layout) UpdateTexture(ui *UiEngine, force bool)

type Point 

type Point struct {
	E [3]float32
}

Point - Data structure to store a point

type ShaderVariables 

type ShaderVariables struct {
	// contains filtered or unexported fields
}

type Slider 

type Slider struct {
	// contains filtered or unexported fields
}

func CreateSlider 

func CreateSlider(label string, initialValue interface{}) *Slider

func (*Slider) Build 

func (s *Slider) Build(ui *UiEngine)

func (*Slider) Draw 

func (s *Slider) Draw(ui *UiEngine)

func (*Slider) Pressed 

func (s *Slider) Pressed(ui *UiEngine, touchx, touchy float32) bool

func (*Slider) RegisterHandlerLeft 

func (s *Slider) RegisterHandlerLeft(handler interface{}, handlerData interface{})

func (*Slider) RegisterHandlerRight 

func (s *Slider) RegisterHandlerRight(handler interface{}, handlerData interface{})

func (*Slider) SetValueText 

func (s *Slider) SetValueText(ui *UiEngine, text string)

func (*Slider) UpdateTexture 

func (s *Slider) UpdateTexture(ui *UiEngine, force bool)

type UiEngine 

type UiEngine struct {
	// contains filtered or unexported fields
}

UiEngine - Struct reponsible for creating and managing all UI Assets on screen

func CreateUiEngine 

func CreateUiEngine(glctx gl.Context, device *DeviceSpecs) *UiEngine

func (*UiEngine) AddHorizontalWindow 

func (ui *UiEngine) AddHorizontalWindow(min, max Point, c image_color.RGBA) *Window

func (*UiEngine) AddWindow 

func (ui *UiEngine) AddWindow(min, max Point, c image_color.RGBA) *Window

func (*UiEngine) AspectRatio 

func (ui *UiEngine) AspectRatio() float32

func (*UiEngine) Build 

func (ui *UiEngine) Build()

func (*UiEngine) ButtonPressed 

func (ui *UiEngine) ButtonPressed(button *ButtonOld, touchx, touchy float32) bool

func (*UiEngine) CheckButtonPresses 

func (ui *UiEngine) CheckButtonPresses(touchx, touchy float32) int

func (*UiEngine) CleanUp 

func (ui *UiEngine) CleanUp()

func (*UiEngine) ConvertToPx 

func (ui *UiEngine) ConvertToPx(delta float32, dim int) int

func (*UiEngine) CreateButtonOld 

func (ui *UiEngine) CreateButtonOld(text string, min, max Point) *ButtonOld

func (*UiEngine) CreateWindow 

func (ui *UiEngine) CreateWindow(min, max Point, c image_color.RGBA)

func (*UiEngine) DeleteBaseGeom 

func (ui *UiEngine) DeleteBaseGeom(geom *DisplayGeom)

func (*UiEngine) DrawAllButtons 

func (ui *UiEngine) DrawAllButtons()

func (*UiEngine) DrawAllWindows 

func (ui *UiEngine) DrawAllWindows()

func (*UiEngine) DrawBaseGeom 

func (ui *UiEngine) DrawBaseGeom(geom *DisplayGeom)

func (*UiEngine) DrawButton 

func (ui *UiEngine) DrawButton(id int)

func (*UiEngine) InitAllButtons 

func (ui *UiEngine) InitAllButtons()

func (*UiEngine) InitAllWindows 

func (ui *UiEngine) InitAllWindows()

func (*UiEngine) InitBaseGeom 

func (ui *UiEngine) InitBaseGeom(geom *DisplayGeom)

func (*UiEngine) InitButton 

func (ui *UiEngine) InitButton(id int)

func (*UiEngine) SetDevice 

func (ui *UiEngine) SetDevice(dev *DeviceSpecs)

func (*UiEngine) SetFontSize 

func (ui *UiEngine) SetFontSize(size int)

func (*UiEngine) String 

func (ui *UiEngine) String() string

func (*UiEngine) UpdateButtonText 

func (ui *UiEngine) UpdateButtonText(button *ButtonOld, newText string)

type UiGesture 

type UiGesture struct {
	LongTouchPrevTime     time.Time
	DoubleTouchPrevTime   time.Time
	LongTouchMeasure      bool
	LongTouch             bool
	DoubleTouch           bool
	TouchDrag             bool
	ProcessingClickBottom bool
	ProcessingClick       bool
	TouchX                float32
	TouchY                float32
	PrevTouchX            float32
	PrevTouchY            float32
}

func CreateUiGesture 

func CreateUiGesture() *UiGesture

type Window 

type Window struct {
	// contains filtered or unexported fields
}

func CreateWindow 

func CreateWindow(ui *UiEngine, min, max Point, layoutType int, col color.RGBA) *Window

func (*Window) AddButton 

func (win *Window) AddButton(text string) *Button

func (*Window) AddLabel 

func (win *Window) AddLabel(text string) *Label

func (*Window) AddLayout 

func (win *Window) AddLayout(layoutType int)

func (*Window) AddSlider 

func (win *Window) AddSlider(label string, value interface{}) *Slider

func (*Window) Build 

func (win *Window) Build(ui *UiEngine)

func (*Window) Draw 

func (win *Window) Draw(ui *UiEngine)

func (*Window) HandleTouch 

func (win *Window) HandleTouch(ui *UiEngine, touchx, touchy float32)

func (*Window) SetPadding 

func (win *Window) SetPadding(padding float32)

Padding for the default window layout

func (*Window) UpdateTexture 

func (win *Window) UpdateTexture(ui *UiEngine, force bool)

Source Files

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