xgo

package module
v0.0.0-...-7e1b477 Latest Latest
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 Go to latest Published: May 3, 2021 License: AGPL-3.0 Imports: 17 Imported by: 0

README

This is a wrapper for github.com/jezek/xgb, which is a patched fork of github.com/BurntSushi/xgb.

The purpose of this package is to make window creation and window handling easier and adds keyboard typing and mouse moving abilities using X11 testing module.

Dependencies

Konwn issues

  • Keyboard writing doesn't write not mapped characters, if audacious's Global Hotkeys plugin is enabled.

Documentation

Index

Constants

View Source 
const (
	IsUnmapped   = xproto.MapStateUnmapped
	IsUnviewable = xproto.MapStateUnviewable
	IsViewable   = xproto.MapStateViewable
)
View Source 
const (
	SizeReqestMax                = (1 << 16) * 4
	SizeRequestPutImageFixedPart = 24
)

Variables

View Source 
var (
	DEBUG bool = os.Getenv("XGO_DEBUG") != ""
)

Functions

func TextExtents 

func TextExtents(text string, f Fontable) (*xproto.QueryTextExtentsReply, error)

TODO? return non xproto result?

Types

type Display 

type Display struct {
	*xgb.Conn
	// contains filtered or unexported fields
}

Display instance.

func OpenDisplay 

func OpenDisplay(d string) (*Display, error)

Creates a new Display instance.

Parameter d contains display name, such as ":0". If empty, it uses the environment variable DISPLAY.

returns nil on failure

func (*Display) ActiveWindow 

func (d *Display) ActiveWindow() *Window

func (*Display) Atom 

func (d *Display) Atom(aid xproto.Atom) string

func (*Display) DefaultScreen 

func (d *Display) DefaultScreen() *Screen

func (*Display) FindWindow 

func (d *Display) FindWindow(wid uint32) (*Window, error)

func (*Display) FontOpen 

func (d *Display) FontOpen(pattern string) (*Font, error)

func (*Display) Name 

func (d *Display) Name() string

func (*Display) NewGraphicsContext 

func (d *Display) NewGraphicsContext(components ...GraphicsContextComponent) (*GraphicsContext, error)

Creates GraphicsContext on default screen. Calls Display.Screen().NewGraphicsContext.

func (*Display) NewWindow 

func (d *Display) NewWindow(operations ...WindowOperation) (*Window, error)

Calls NewWindow on default screen

func (*Display) NumberOfDesktops 

func (d *Display) NumberOfDesktops() uint32

func (*Display) NumberOfScreens 

func (d *Display) NumberOfScreens() int

func (*Display) Pointer 

func (d *Display) Pointer() *DisplayPointer

func (*Display) Screens 

func (d *Display) Screens() []*Screen

func (*Display) Setup 

func (d *Display) Setup() *Setup

type DisplayPointer 

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

func (*DisplayPointer) Status 

func (p *DisplayPointer) Status() (PointerStatus, error)

type Drawable 

type Drawable interface {
	Drawable() xproto.Drawable
}

type Font 

type Font struct {
	xproto.Font
	// contains filtered or unexported fields
}

Font allocated on display

func OpenFontOnDisplay 

func OpenFontOnDisplay(d *Display, pattern string) (*Font, error)

Opens font with pattern on provided display. If you don't want to use the font anymore, use Close method on it. On any error, the error is returned

func (*Font) Close 

func (f *Font) Close() error

Closes font allocation in X. Font has not be used anymore after close.

func (*Font) Display 

func (f *Font) Display() *Display

func (*Font) Fontable 

func (f *Font) Fontable() xproto.Fontable

func (*Font) Info 

func (f *Font) Info() (*FontInfo, error)

func (*Font) TextExtents 

func (f *Font) TextExtents(text string) (*xproto.QueryTextExtentsReply, error)

type FontInfo 

type FontInfo struct {
	*xproto.QueryFontReply
	// contains filtered or unexported fields
}

TODO timestamps for all X replies

func FontQuery 

func FontQuery(f Fontable) (*FontInfo, error)

Returns font information for Fontable structures, or error if some troubles. Current Fontables are: *Font, *GraphicsContext

func (*FontInfo) Display 

func (fi *FontInfo) Display() *Display

func (*FontInfo) Fontable 

func (fi *FontInfo) Fontable() Fontable

func (*FontInfo) Properties 

func (fi *FontInfo) Properties() map[string]string

type Fontable 

type Fontable interface {
	Fontable() xproto.Fontable
	Display() *Display
}

type GraphicsContext 

type GraphicsContext struct {
	xproto.Gcontext
	// contains filtered or unexported fields
}

func NewGraphicsContextOnDisplay 

func NewGraphicsContextOnDisplay(d *Display, drawable Drawable, components ...GraphicsContextComponent) (resultGc *GraphicsContext, resultErr error)

Create and allocate graphics context on display with drawable root and depth using provided components Returned graphical context can be used with any destination drawable having the same root and depthe. Use with other drawables results in a BadMatch error.

func (*GraphicsContext) Display 

func (gc *GraphicsContext) Display() *Display

func (*GraphicsContext) FontInfo 

func (gc *GraphicsContext) FontInfo() (*FontInfo, error)

func (*GraphicsContext) Fontable 

func (gc *GraphicsContext) Fontable() xproto.Fontable

func (*GraphicsContext) Free 

func (gc *GraphicsContext) Free() error

func (*GraphicsContext) TextExtents 

func (gc *GraphicsContext) TextExtents(text string) (*xproto.QueryTextExtentsReply, error)

type GraphicsContextComponent 

type GraphicsContextComponent func(gc *GraphicsContext) (map[uint32]uint32, error)

type GraphicsContextComponents 

type GraphicsContextComponents struct{}

func (GraphicsContextComponents) BackgroundPixel 

func (_ GraphicsContextComponents) BackgroundPixel(val uint32) GraphicsContextComponent

func (GraphicsContextComponents) Font 

func (_ GraphicsContextComponents) Font(font *Font) GraphicsContextComponent

func (GraphicsContextComponents) ForegroundPixel 

func (_ GraphicsContextComponents) ForegroundPixel(val uint32) GraphicsContextComponent

func (GraphicsContextComponents) NewFont 

func (_ GraphicsContextComponents) NewFont(pattern string) GraphicsContextComponent

Opens first font matching pattern an assigns to graphics context, if used in graphics context creation or editing. Font is closed upon graphics context freeing, or graphics contexts font beeing updated (eg. with this component again).

func (GraphicsContextComponents) NewFontIfMatch 

func (_ GraphicsContextComponents) NewFontIfMatch(pattern string) GraphicsContextComponent

Opens first font matching pattern, if there is any and assigns it to graphics context, If font does not exist, previous is kept, or if there is no previous, default is used. if used in graphics context creation or editing. Font is closed upon graphics context freeing, or graphics contexts font beeing updated (eg. with this component again).

type Keyboard 

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

func (*Keyboard) Control 

func (k *Keyboard) Control() *KeyboardControll

func (*Keyboard) Display 

func (k *Keyboard) Display() *Display

func (*Keyboard) MappingAll 

func (k *Keyboard) MappingAll() *xproto.GetKeyboardMappingReply

func (*Keyboard) Screen 

func (k *Keyboard) Screen() *Screen

func (*Keyboard) String 

func (k *Keyboard) String() string

func (*Keyboard) Window 

func (k *Keyboard) Window() *Window

type KeyboardControll 

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

func (*KeyboardControll) Display 

func (c *KeyboardControll) Display() *Display

func (*KeyboardControll) Screen 

func (c *KeyboardControll) Screen() *Screen

func (*KeyboardControll) String 

func (c *KeyboardControll) String() string

func (*KeyboardControll) Write 

func (c *KeyboardControll) Write(s string) error

type Pixmap 

type Pixmap struct {
	xproto.Pixmap

	Size  image.Point
	Depth byte
	// contains filtered or unexported fields
}

func NewPixmapFromImageOnScreen 

func NewPixmapFromImageOnScreen(scr *Screen, img image.Image, operations ...PixmapOperation) (*Pixmap, error)

Allocate new pixmap in X on screen, with screen default depth and size of the image Then draws the image to pixmap and applies all pixmap operations. If there is an error along somewhere, pixmap is destroyed and the first occuring error is returned This is an shortcut for: NewPixmapOnScreen( 

scr,
image.Pt(img.Bounds().Dx(),img.Bounds().Dy()),
PixmapOperations{}.DrawImage(img),
options...,
)

func NewPixmapOnScreen 

func NewPixmapOnScreen(s *Screen, size image.Point, operations ...PixmapOperation) (*Pixmap, error)

Allocate new pixmap in X on screen, with screen default depth and provided size Then applies all pixmap operations. If there is an error along somewhere, pixmap is destroyed and the first occuring error is returned

func (*Pixmap) Destroy 

func (p *Pixmap) Destroy() error

func (*Pixmap) Display 

func (p *Pixmap) Display() *Display

func (*Pixmap) Draw 

func (p *Pixmap) Draw(drawers ...PixmapDrawer) error

TODO implement all xproto draw functions TODO theese draw operations shoul be not only for pixmap, but all drawable objects (which are they???) 

	if err := xproto.PolyLineChecked(
		d.Conn,
		xproto.CoordModeOrigin,
		xproto.Drawable(pixmapId),
		gc,
		[]xproto.Point{xproto.Point{0, 0}, xproto.Point{100, 100}, xproto.Point{0, 100}},
	).Check(); err != nil {
		fmt.Printf("Unable draw line: %v\n", err)
		return
	}
	fmt.Println("line draw")

}

Uses all draw functions in order. Stops on first encountered error and returns it.

func (*Pixmap) Screen 

func (p *Pixmap) Screen() *Screen

type PixmapDrawer 

type PixmapDrawer func(*Pixmap) error

TODO use Drawable instead of pixmap

type PixmapDrawers 

type PixmapDrawers struct{}

func (PixmapDrawers) Image 

func (pd PixmapDrawers) Image(img image.Image) PixmapDrawer

Draws image "img" to pixmap, so top-left corner of image "img.Bounds().Min" is at point [0,0].

func (PixmapDrawers) ImageAt 

func (_ PixmapDrawers) ImageAt(img image.Image, pt image.Point) PixmapDrawer

Draws image "img" to pixmap, so top-left corner of image "img.Bounds().Min" is at point "pt".

func (PixmapDrawers) Text 

func (_ PixmapDrawers) Text(text string, position image.Point, gc *GraphicsContext) PixmapDrawer

type PixmapOperation 

type PixmapOperation func(*Pixmap) error

type PixmapOperations 

type PixmapOperations struct{}

func (PixmapOperations) Draw 

func (_ PixmapOperations) Draw(drawers ...PixmapDrawer) PixmapOperation

type Pointer 

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

func (*Pointer) Control 

func (p *Pointer) Control() *PointerControll

func (*Pointer) Display 

func (p *Pointer) Display() *Display

func (*Pointer) MotionNotify 

func (p *Pointer) MotionNotify(stop <-chan struct{}) <-chan xproto.MotionNotifyEvent

func (*Pointer) Screen 

func (p *Pointer) Screen() *Screen

func (*Pointer) Status 

func (p *Pointer) Status() (PointerStatus, error)

func (*Pointer) String 

func (p *Pointer) String() string

func (*Pointer) Window 

func (p *Pointer) Window() *Window

type PointerControll 

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

func (*PointerControll) ClickLeft 

func (c *PointerControll) ClickLeft() error

func (*PointerControll) ClickRight 

func (c *PointerControll) ClickRight() error

func (*PointerControll) Display 

func (c *PointerControll) Display() *Display

func (*PointerControll) DownLeft 

func (c *PointerControll) DownLeft() error

func (*PointerControll) DownRight 

func (c *PointerControll) DownRight() error

func (*PointerControll) Move 

func (c *PointerControll) Move(x, y int) error

func (*PointerControll) MoveRelative 

func (c *PointerControll) MoveRelative(x, y int) error

func (*PointerControll) Screen 

func (c *PointerControll) Screen() *Screen

func (*PointerControll) ScrollDown 

func (c *PointerControll) ScrollDown() error

func (*PointerControll) ScrollUp 

func (c *PointerControll) ScrollUp() error

func (*PointerControll) UpLeft 

func (c *PointerControll) UpLeft() error

func (*PointerControll) UpRight 

func (c *PointerControll) UpRight() error

type PointerStatus 

type PointerStatus struct {
	*xproto.QueryPointerReply
	Pointer *Pointer
	Root    *Window
	Child   *Window
	Button  [6]bool
}

type Screen 

type Screen struct {
	*xproto.ScreenInfo
	// contains filtered or unexported fields
}

Screen instance

func (*Screen) Default 

func (s *Screen) Default() bool

func (*Screen) Display 

func (s *Screen) Display() *Display

func (*Screen) Id 

func (s *Screen) Id() int

func (*Screen) NewGraphicsContext 

func (s *Screen) NewGraphicsContext(components ...GraphicsContextComponent) (*GraphicsContext, error)

Creates GraphicsContext with this creens root window depth.

func (*Screen) NewPixmap 

func (s *Screen) NewPixmap(size image.Point, operations ...PixmapOperation) (*Pixmap, error)

Calls NewPixmapOnScreen on current screen

func (*Screen) NewPixmapFromImage 

func (s *Screen) NewPixmapFromImage(image image.Image, operations ...PixmapOperation) (*Pixmap, error)

Calls NewPixmapFromImageOnScreen on current screen

func (*Screen) NewWindow 

func (s *Screen) NewWindow(operations ...WindowOperation) (*Window, error)

func (*Screen) Window 

func (s *Screen) Window() *Window

type Setup 

type Setup struct {
	*xproto.SetupInfo
	// contains filtered or unexported fields
}

Setup instance

type Window 

type Window struct {
	xproto.Window //required
	// contains filtered or unexported fields
}

func NewWindowOnScreen 

func NewWindowOnScreen(s *Screen, operations ...WindowOperation) (*Window, error)

Creates an unmapped input/output window on default screen with no initialization. Window size is [1,1], position is [0,0], border 0, with screen root depth and none (default?) attributes. Then applies all window operations. If there is an error along somewhere, window is destroyed and the first occuring error is returned

func (*Window) AttributesChange 

func (w *Window) AttributesChange(attributes ...WindowAttribute) error

Applies attributes to window. If duplicate attributes provided, error is produced. The attributes are not applied in provided order and are allways sorted by mask of the attribute. eg. if you use BackgroundPixelColor and BackgroundPixmap, it will not show the pixmap on background, because mask for BackgroundPixelColor has greater value than BackgroundPixmap and will com after. So every time the last background operation is BackgroundPixelColor. See WindowAttributes struct and underlying xproto.Cw... costants for mask value info TODO? or should I return error if background is set twice, or any other alike situations?

func (*Window) AttributesInfo 

func (w *Window) AttributesInfo() (*WindowAttributesInfo, error)

func (*Window) Children 

func (w *Window) Children() ([]*Window, error)

func (*Window) Clear 

func (w *Window) Clear() error

Paints a rectangular area in the window with the window's background pixel or pixmap. If the window has a defined background tile, the rectangle clipped by any children is filled with this tile. If the window has background None, the contents of the window are not changed.

func (*Window) CloseNotify 

func (w *Window) CloseNotify(stop <-chan struct{}) (<-chan struct{}, error)

func (*Window) Destroy 

func (w *Window) Destroy() error

func (*Window) Display 

func (w *Window) Display() *Display

func (*Window) Drawable 

func (w *Window) Drawable() xproto.Drawable

func (*Window) IsRoot 

func (w *Window) IsRoot() bool

func (*Window) IsVisible 

func (w *Window) IsVisible() bool

func (*Window) Keyboard 

func (w *Window) Keyboard() *Keyboard

func (*Window) Map 

func (w *Window) Map() error

Maps window

func (*Window) MoveResize 

func (w *Window) MoveResize(bounds image.Rectangle) error

Makes a ConfigRequest, to alter position and size. Returns error if something is wrong

func (*Window) Name 

func (w *Window) Name() string

func (*Window) Operations 

func (w *Window) Operations(operations ...WindowOperation) error

func (*Window) Parent 

func (w *Window) Parent() (*Window, error)

func (*Window) Parents 

func (w *Window) Parents() ([]*Window, error)

func (*Window) Pointer 

func (w *Window) Pointer() *Pointer

func (*Window) Protocols 

func (w *Window) Protocols() ([]string, error)

func (*Window) ProtocolsSet 

func (w *Window) ProtocolsSet(protocols []string) error

func (*Window) Resize 

func (w *Window) Resize(size image.Point) error

Makes a ConfigRequest, to alter size. Returns error if something is wrong

func (*Window) Screen 

func (w *Window) Screen() *Screen

func (*Window) String 

func (w *Window) String() string

type WindowAttribute 

type WindowAttribute func() (mask uint32, value uint32)

type WindowAttributes 

type WindowAttributes struct{}

func (WindowAttributes) BackgroundPixelColor 

func (_ WindowAttributes) BackgroundPixelColor(col color.Color) WindowAttribute

TODO CwBorderPixmap, CwBorderPixel, CwBitGravity, CwWinGravity, CwBackingStore, CwBackingPlanes, CwBackingPixel, CwOverrideRedirect , CwSaveUnder, CwEventMask, CwDontPropagate, CwColormap, CwCursor

func (WindowAttributes) BackgroundPixmap 

func (_ WindowAttributes) BackgroundPixmap(pixmap *Pixmap) WindowAttribute

type WindowAttributesInfo 

type WindowAttributesInfo struct {
	*xproto.GetWindowAttributesReply
	// contains filtered or unexported fields
}

type WindowOperation 

type WindowOperation func(*Window) error

type WindowOperations 

type WindowOperations struct{}

func (WindowOperations) Attributes 

func (_ WindowOperations) Attributes(attributes ...WindowAttribute) WindowOperation

func (WindowOperations) Clear 

func (_ WindowOperations) Clear() WindowOperation

func (WindowOperations) Map 

func (_ WindowOperations) Map() WindowOperation

func (WindowOperations) Size 

func (_ WindowOperations) Size(size image.Point) WindowOperation

TODO ConfigWindowX, ConfigWindowY, ConfigWindowBorderWidth, ConfigWindowSibling, ConfigWindowStackMode,

Source Files

View all Source files

Directories

Path Synopsis
examples
activeWindow
Prints active window's parents and children for default screeen.
 Prints active window's parents and children for default screeen.
createAndHandleWindow
createWindow
createWindowWithImageAsBackground
keyboardWrite
mouseInfo
mouseMove
windowTree
Prints visible named window tree for all screens.
 Prints visible named window tree for all screens.

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