diff options
Diffstat (limited to 'nexgb/shape/shape.go')
| -rw-r--r-- | nexgb/shape/shape.go | 1025 |
1 files changed, 1025 insertions, 0 deletions
diff --git a/nexgb/shape/shape.go b/nexgb/shape/shape.go new file mode 100644 index 0000000..7069f7e --- /dev/null +++ b/nexgb/shape/shape.go @@ -0,0 +1,1025 @@ +// Package shape is the X client API for the SHAPE extension. +package shape + +// This file is automatically generated from shape.xml. Edit at your peril! + +import ( + "github.com/BurntSushi/xgb" + + "github.com/BurntSushi/xgb/xproto" +) + +// Init must be called before using the SHAPE extension. +func Init(c *xgb.Conn) error { + reply, err := xproto.QueryExtension(c, 5, "SHAPE").Reply() + switch { + case err != nil: + return err + case !reply.Present: + return xgb.Errorf("No extension named SHAPE could be found on on the server.") + } + + c.ExtLock.Lock() + c.Extensions["SHAPE"] = reply.MajorOpcode + c.ExtLock.Unlock() + for evNum, fun := range xgb.NewExtEventFuncs["SHAPE"] { + xgb.NewEventFuncs[int(reply.FirstEvent)+evNum] = fun + } + for errNum, fun := range xgb.NewExtErrorFuncs["SHAPE"] { + xgb.NewErrorFuncs[int(reply.FirstError)+errNum] = fun + } + return nil +} + +func init() { + xgb.NewExtEventFuncs["SHAPE"] = make(map[int]xgb.NewEventFun) + xgb.NewExtErrorFuncs["SHAPE"] = make(map[int]xgb.NewErrorFun) +} + +type Kind byte + +// Notify is the event number for a NotifyEvent. +const Notify = 0 + +type NotifyEvent struct { + Sequence uint16 + ShapeKind Kind + AffectedWindow xproto.Window + ExtentsX int16 + ExtentsY int16 + ExtentsWidth uint16 + ExtentsHeight uint16 + ServerTime xproto.Timestamp + Shaped bool + // padding: 11 bytes +} + +// NotifyEventNew constructs a NotifyEvent value that implements xgb.Event from a byte slice. +func NotifyEventNew(buf []byte) xgb.Event { + v := NotifyEvent{} + b := 1 // don't read event number + + v.ShapeKind = Kind(buf[b]) + b += 1 + + v.Sequence = xgb.Get16(buf[b:]) + b += 2 + + v.AffectedWindow = xproto.Window(xgb.Get32(buf[b:])) + b += 4 + + v.ExtentsX = int16(xgb.Get16(buf[b:])) + b += 2 + + v.ExtentsY = int16(xgb.Get16(buf[b:])) + b += 2 + + v.ExtentsWidth = xgb.Get16(buf[b:]) + b += 2 + + v.ExtentsHeight = xgb.Get16(buf[b:]) + b += 2 + + v.ServerTime = xproto.Timestamp(xgb.Get32(buf[b:])) + b += 4 + + if buf[b] == 1 { + v.Shaped = true + } else { + v.Shaped = false + } + b += 1 + + b += 11 // padding + + return v +} + +// Bytes writes a NotifyEvent value to a byte slice. +func (v NotifyEvent) Bytes() []byte { + buf := make([]byte, 32) + b := 0 + + // write event number + buf[b] = 0 + b += 1 + + buf[b] = byte(v.ShapeKind) + b += 1 + + b += 2 // skip sequence number + + xgb.Put32(buf[b:], uint32(v.AffectedWindow)) + b += 4 + + xgb.Put16(buf[b:], uint16(v.ExtentsX)) + b += 2 + + xgb.Put16(buf[b:], uint16(v.ExtentsY)) + b += 2 + + xgb.Put16(buf[b:], v.ExtentsWidth) + b += 2 + + xgb.Put16(buf[b:], v.ExtentsHeight) + b += 2 + + xgb.Put32(buf[b:], uint32(v.ServerTime)) + b += 4 + + if v.Shaped { + buf[b] = 1 + } else { + buf[b] = 0 + } + b += 1 + + b += 11 // padding + + return buf +} + +// SequenceId returns the sequence id attached to the Notify event. +// Events without a sequence number (KeymapNotify) return 0. +// This is mostly used internally. +func (v NotifyEvent) SequenceId() uint16 { + return v.Sequence +} + +// String is a rudimentary string representation of NotifyEvent. +func (v NotifyEvent) String() string { + fieldVals := make([]string, 0, 9) + fieldVals = append(fieldVals, xgb.Sprintf("Sequence: %d", v.Sequence)) + fieldVals = append(fieldVals, xgb.Sprintf("ShapeKind: %d", v.ShapeKind)) + fieldVals = append(fieldVals, xgb.Sprintf("AffectedWindow: %d", v.AffectedWindow)) + fieldVals = append(fieldVals, xgb.Sprintf("ExtentsX: %d", v.ExtentsX)) + fieldVals = append(fieldVals, xgb.Sprintf("ExtentsY: %d", v.ExtentsY)) + fieldVals = append(fieldVals, xgb.Sprintf("ExtentsWidth: %d", v.ExtentsWidth)) + fieldVals = append(fieldVals, xgb.Sprintf("ExtentsHeight: %d", v.ExtentsHeight)) + fieldVals = append(fieldVals, xgb.Sprintf("ServerTime: %d", v.ServerTime)) + fieldVals = append(fieldVals, xgb.Sprintf("Shaped: %t", v.Shaped)) + return "Notify {" + xgb.StringsJoin(fieldVals, ", ") + "}" +} + +func init() { + xgb.NewExtEventFuncs["SHAPE"][0] = NotifyEventNew +} + +type Op byte + +const ( + SkBounding = 0 + SkClip = 1 + SkInput = 2 +) + +const ( + SoSet = 0 + SoUnion = 1 + SoIntersect = 2 + SoSubtract = 3 + SoInvert = 4 +) + +// Skipping definition for base type 'Bool' + +// Skipping definition for base type 'Byte' + +// Skipping definition for base type 'Card8' + +// Skipping definition for base type 'Char' + +// Skipping definition for base type 'Void' + +// Skipping definition for base type 'Double' + +// Skipping definition for base type 'Float' + +// Skipping definition for base type 'Int16' + +// Skipping definition for base type 'Int32' + +// Skipping definition for base type 'Int8' + +// Skipping definition for base type 'Card16' + +// Skipping definition for base type 'Card32' + +// CombineCookie is a cookie used only for Combine requests. +type CombineCookie struct { + *xgb.Cookie +} + +// Combine sends an unchecked request. +// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent. +func Combine(c *xgb.Conn, Operation Op, DestinationKind Kind, SourceKind Kind, DestinationWindow xproto.Window, XOffset int16, YOffset int16, SourceWindow xproto.Window) CombineCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'Combine' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(false, false) + c.NewRequest(combineRequest(c, Operation, DestinationKind, SourceKind, DestinationWindow, XOffset, YOffset, SourceWindow), cookie) + return CombineCookie{cookie} +} + +// CombineChecked sends a checked request. +// If an error occurs, it can be retrieved using CombineCookie.Check() +func CombineChecked(c *xgb.Conn, Operation Op, DestinationKind Kind, SourceKind Kind, DestinationWindow xproto.Window, XOffset int16, YOffset int16, SourceWindow xproto.Window) CombineCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'Combine' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(true, false) + c.NewRequest(combineRequest(c, Operation, DestinationKind, SourceKind, DestinationWindow, XOffset, YOffset, SourceWindow), cookie) + return CombineCookie{cookie} +} + +// Check returns an error if one occurred for checked requests that are not expecting a reply. +// This cannot be called for requests expecting a reply, nor for unchecked requests. +func (cook CombineCookie) Check() error { + return cook.Cookie.Check() +} + +// Write request to wire for Combine +// combineRequest writes a Combine request to a byte slice. +func combineRequest(c *xgb.Conn, Operation Op, DestinationKind Kind, SourceKind Kind, DestinationWindow xproto.Window, XOffset int16, YOffset int16, SourceWindow xproto.Window) []byte { + size := 20 + b := 0 + buf := make([]byte, size) + + c.ExtLock.RLock() + buf[b] = c.Extensions["SHAPE"] + c.ExtLock.RUnlock() + b += 1 + + buf[b] = 3 // request opcode + b += 1 + + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units + b += 2 + + buf[b] = byte(Operation) + b += 1 + + buf[b] = byte(DestinationKind) + b += 1 + + buf[b] = byte(SourceKind) + b += 1 + + b += 1 // padding + + xgb.Put32(buf[b:], uint32(DestinationWindow)) + b += 4 + + xgb.Put16(buf[b:], uint16(XOffset)) + b += 2 + + xgb.Put16(buf[b:], uint16(YOffset)) + b += 2 + + xgb.Put32(buf[b:], uint32(SourceWindow)) + b += 4 + + return buf +} + +// GetRectanglesCookie is a cookie used only for GetRectangles requests. +type GetRectanglesCookie struct { + *xgb.Cookie +} + +// GetRectangles sends a checked request. +// If an error occurs, it will be returned with the reply by calling GetRectanglesCookie.Reply() +func GetRectangles(c *xgb.Conn, Window xproto.Window, SourceKind Kind) GetRectanglesCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'GetRectangles' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(true, true) + c.NewRequest(getRectanglesRequest(c, Window, SourceKind), cookie) + return GetRectanglesCookie{cookie} +} + +// GetRectanglesUnchecked sends an unchecked request. +// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent. +func GetRectanglesUnchecked(c *xgb.Conn, Window xproto.Window, SourceKind Kind) GetRectanglesCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'GetRectangles' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(false, true) + c.NewRequest(getRectanglesRequest(c, Window, SourceKind), cookie) + return GetRectanglesCookie{cookie} +} + +// GetRectanglesReply represents the data returned from a GetRectangles request. +type GetRectanglesReply struct { + Sequence uint16 // sequence number of the request for this reply + Length uint32 // number of bytes in this reply + Ordering byte + RectanglesLen uint32 + // padding: 20 bytes + Rectangles []xproto.Rectangle // size: xgb.Pad((int(RectanglesLen) * 8)) +} + +// Reply blocks and returns the reply data for a GetRectangles request. +func (cook GetRectanglesCookie) Reply() (*GetRectanglesReply, error) { + buf, err := cook.Cookie.Reply() + if err != nil { + return nil, err + } + if buf == nil { + return nil, nil + } + return getRectanglesReply(buf), nil +} + +// getRectanglesReply reads a byte slice into a GetRectanglesReply value. +func getRectanglesReply(buf []byte) *GetRectanglesReply { + v := new(GetRectanglesReply) + b := 1 // skip reply determinant + + v.Ordering = buf[b] + b += 1 + + v.Sequence = xgb.Get16(buf[b:]) + b += 2 + + v.Length = xgb.Get32(buf[b:]) // 4-byte units + b += 4 + + v.RectanglesLen = xgb.Get32(buf[b:]) + b += 4 + + b += 20 // padding + + v.Rectangles = make([]xproto.Rectangle, v.RectanglesLen) + b += xproto.RectangleReadList(buf[b:], v.Rectangles) + + return v +} + +// Write request to wire for GetRectangles +// getRectanglesRequest writes a GetRectangles request to a byte slice. +func getRectanglesRequest(c *xgb.Conn, Window xproto.Window, SourceKind Kind) []byte { + size := 12 + b := 0 + buf := make([]byte, size) + + c.ExtLock.RLock() + buf[b] = c.Extensions["SHAPE"] + c.ExtLock.RUnlock() + b += 1 + + buf[b] = 8 // request opcode + b += 1 + + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units + b += 2 + + xgb.Put32(buf[b:], uint32(Window)) + b += 4 + + buf[b] = byte(SourceKind) + b += 1 + + b += 3 // padding + + return buf +} + +// InputSelectedCookie is a cookie used only for InputSelected requests. +type InputSelectedCookie struct { + *xgb.Cookie +} + +// InputSelected sends a checked request. +// If an error occurs, it will be returned with the reply by calling InputSelectedCookie.Reply() +func InputSelected(c *xgb.Conn, DestinationWindow xproto.Window) InputSelectedCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'InputSelected' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(true, true) + c.NewRequest(inputSelectedRequest(c, DestinationWindow), cookie) + return InputSelectedCookie{cookie} +} + +// InputSelectedUnchecked sends an unchecked request. +// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent. +func InputSelectedUnchecked(c *xgb.Conn, DestinationWindow xproto.Window) InputSelectedCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'InputSelected' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(false, true) + c.NewRequest(inputSelectedRequest(c, DestinationWindow), cookie) + return InputSelectedCookie{cookie} +} + +// InputSelectedReply represents the data returned from a InputSelected request. +type InputSelectedReply struct { + Sequence uint16 // sequence number of the request for this reply + Length uint32 // number of bytes in this reply + Enabled bool +} + +// Reply blocks and returns the reply data for a InputSelected request. +func (cook InputSelectedCookie) Reply() (*InputSelectedReply, error) { + buf, err := cook.Cookie.Reply() + if err != nil { + return nil, err + } + if buf == nil { + return nil, nil + } + return inputSelectedReply(buf), nil +} + +// inputSelectedReply reads a byte slice into a InputSelectedReply value. +func inputSelectedReply(buf []byte) *InputSelectedReply { + v := new(InputSelectedReply) + b := 1 // skip reply determinant + + if buf[b] == 1 { + v.Enabled = true + } else { + v.Enabled = false + } + b += 1 + + v.Sequence = xgb.Get16(buf[b:]) + b += 2 + + v.Length = xgb.Get32(buf[b:]) // 4-byte units + b += 4 + + return v +} + +// Write request to wire for InputSelected +// inputSelectedRequest writes a InputSelected request to a byte slice. +func inputSelectedRequest(c *xgb.Conn, DestinationWindow xproto.Window) []byte { + size := 8 + b := 0 + buf := make([]byte, size) + + c.ExtLock.RLock() + buf[b] = c.Extensions["SHAPE"] + c.ExtLock.RUnlock() + b += 1 + + buf[b] = 7 // request opcode + b += 1 + + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units + b += 2 + + xgb.Put32(buf[b:], uint32(DestinationWindow)) + b += 4 + + return buf +} + +// MaskCookie is a cookie used only for Mask requests. +type MaskCookie struct { + *xgb.Cookie +} + +// Mask sends an unchecked request. +// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent. +func Mask(c *xgb.Conn, Operation Op, DestinationKind Kind, DestinationWindow xproto.Window, XOffset int16, YOffset int16, SourceBitmap xproto.Pixmap) MaskCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'Mask' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(false, false) + c.NewRequest(maskRequest(c, Operation, DestinationKind, DestinationWindow, XOffset, YOffset, SourceBitmap), cookie) + return MaskCookie{cookie} +} + +// MaskChecked sends a checked request. +// If an error occurs, it can be retrieved using MaskCookie.Check() +func MaskChecked(c *xgb.Conn, Operation Op, DestinationKind Kind, DestinationWindow xproto.Window, XOffset int16, YOffset int16, SourceBitmap xproto.Pixmap) MaskCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'Mask' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(true, false) + c.NewRequest(maskRequest(c, Operation, DestinationKind, DestinationWindow, XOffset, YOffset, SourceBitmap), cookie) + return MaskCookie{cookie} +} + +// Check returns an error if one occurred for checked requests that are not expecting a reply. +// This cannot be called for requests expecting a reply, nor for unchecked requests. +func (cook MaskCookie) Check() error { + return cook.Cookie.Check() +} + +// Write request to wire for Mask +// maskRequest writes a Mask request to a byte slice. +func maskRequest(c *xgb.Conn, Operation Op, DestinationKind Kind, DestinationWindow xproto.Window, XOffset int16, YOffset int16, SourceBitmap xproto.Pixmap) []byte { + size := 20 + b := 0 + buf := make([]byte, size) + + c.ExtLock.RLock() + buf[b] = c.Extensions["SHAPE"] + c.ExtLock.RUnlock() + b += 1 + + buf[b] = 2 // request opcode + b += 1 + + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units + b += 2 + + buf[b] = byte(Operation) + b += 1 + + buf[b] = byte(DestinationKind) + b += 1 + + b += 2 // padding + + xgb.Put32(buf[b:], uint32(DestinationWindow)) + b += 4 + + xgb.Put16(buf[b:], uint16(XOffset)) + b += 2 + + xgb.Put16(buf[b:], uint16(YOffset)) + b += 2 + + xgb.Put32(buf[b:], uint32(SourceBitmap)) + b += 4 + + return buf +} + +// OffsetCookie is a cookie used only for Offset requests. +type OffsetCookie struct { + *xgb.Cookie +} + +// Offset sends an unchecked request. +// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent. +func Offset(c *xgb.Conn, DestinationKind Kind, DestinationWindow xproto.Window, XOffset int16, YOffset int16) OffsetCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'Offset' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(false, false) + c.NewRequest(offsetRequest(c, DestinationKind, DestinationWindow, XOffset, YOffset), cookie) + return OffsetCookie{cookie} +} + +// OffsetChecked sends a checked request. +// If an error occurs, it can be retrieved using OffsetCookie.Check() +func OffsetChecked(c *xgb.Conn, DestinationKind Kind, DestinationWindow xproto.Window, XOffset int16, YOffset int16) OffsetCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'Offset' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(true, false) + c.NewRequest(offsetRequest(c, DestinationKind, DestinationWindow, XOffset, YOffset), cookie) + return OffsetCookie{cookie} +} + +// Check returns an error if one occurred for checked requests that are not expecting a reply. +// This cannot be called for requests expecting a reply, nor for unchecked requests. +func (cook OffsetCookie) Check() error { + return cook.Cookie.Check() +} + +// Write request to wire for Offset +// offsetRequest writes a Offset request to a byte slice. +func offsetRequest(c *xgb.Conn, DestinationKind Kind, DestinationWindow xproto.Window, XOffset int16, YOffset int16) []byte { + size := 16 + b := 0 + buf := make([]byte, size) + + c.ExtLock.RLock() + buf[b] = c.Extensions["SHAPE"] + c.ExtLock.RUnlock() + b += 1 + + buf[b] = 4 // request opcode + b += 1 + + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units + b += 2 + + buf[b] = byte(DestinationKind) + b += 1 + + b += 3 // padding + + xgb.Put32(buf[b:], uint32(DestinationWindow)) + b += 4 + + xgb.Put16(buf[b:], uint16(XOffset)) + b += 2 + + xgb.Put16(buf[b:], uint16(YOffset)) + b += 2 + + return buf +} + +// QueryExtentsCookie is a cookie used only for QueryExtents requests. +type QueryExtentsCookie struct { + *xgb.Cookie +} + +// QueryExtents sends a checked request. +// If an error occurs, it will be returned with the reply by calling QueryExtentsCookie.Reply() +func QueryExtents(c *xgb.Conn, DestinationWindow xproto.Window) QueryExtentsCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'QueryExtents' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(true, true) + c.NewRequest(queryExtentsRequest(c, DestinationWindow), cookie) + return QueryExtentsCookie{cookie} +} + +// QueryExtentsUnchecked sends an unchecked request. +// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent. +func QueryExtentsUnchecked(c *xgb.Conn, DestinationWindow xproto.Window) QueryExtentsCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'QueryExtents' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(false, true) + c.NewRequest(queryExtentsRequest(c, DestinationWindow), cookie) + return QueryExtentsCookie{cookie} +} + +// QueryExtentsReply represents the data returned from a QueryExtents request. +type QueryExtentsReply struct { + Sequence uint16 // sequence number of the request for this reply + Length uint32 // number of bytes in this reply + // padding: 1 bytes + BoundingShaped bool + ClipShaped bool + // padding: 2 bytes + BoundingShapeExtentsX int16 + BoundingShapeExtentsY int16 + BoundingShapeExtentsWidth uint16 + BoundingShapeExtentsHeight uint16 + ClipShapeExtentsX int16 + ClipShapeExtentsY int16 + ClipShapeExtentsWidth uint16 + ClipShapeExtentsHeight uint16 +} + +// Reply blocks and returns the reply data for a QueryExtents request. +func (cook QueryExtentsCookie) Reply() (*QueryExtentsReply, error) { + buf, err := cook.Cookie.Reply() + if err != nil { + return nil, err + } + if buf == nil { + return nil, nil + } + return queryExtentsReply(buf), nil +} + +// queryExtentsReply reads a byte slice into a QueryExtentsReply value. +func queryExtentsReply(buf []byte) *QueryExtentsReply { + v := new(QueryExtentsReply) + b := 1 // skip reply determinant + + b += 1 // padding + + v.Sequence = xgb.Get16(buf[b:]) + b += 2 + + v.Length = xgb.Get32(buf[b:]) // 4-byte units + b += 4 + + if buf[b] == 1 { + v.BoundingShaped = true + } else { + v.BoundingShaped = false + } + b += 1 + + if buf[b] == 1 { + v.ClipShaped = true + } else { + v.ClipShaped = false + } + b += 1 + + b += 2 // padding + + v.BoundingShapeExtentsX = int16(xgb.Get16(buf[b:])) + b += 2 + + v.BoundingShapeExtentsY = int16(xgb.Get16(buf[b:])) + b += 2 + + v.BoundingShapeExtentsWidth = xgb.Get16(buf[b:]) + b += 2 + + v.BoundingShapeExtentsHeight = xgb.Get16(buf[b:]) + b += 2 + + v.ClipShapeExtentsX = int16(xgb.Get16(buf[b:])) + b += 2 + + v.ClipShapeExtentsY = int16(xgb.Get16(buf[b:])) + b += 2 + + v.ClipShapeExtentsWidth = xgb.Get16(buf[b:]) + b += 2 + + v.ClipShapeExtentsHeight = xgb.Get16(buf[b:]) + b += 2 + + return v +} + +// Write request to wire for QueryExtents +// queryExtentsRequest writes a QueryExtents request to a byte slice. +func queryExtentsRequest(c *xgb.Conn, DestinationWindow xproto.Window) []byte { + size := 8 + b := 0 + buf := make([]byte, size) + + c.ExtLock.RLock() + buf[b] = c.Extensions["SHAPE"] + c.ExtLock.RUnlock() + b += 1 + + buf[b] = 5 // request opcode + b += 1 + + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units + b += 2 + + xgb.Put32(buf[b:], uint32(DestinationWindow)) + b += 4 + + return buf +} + +// QueryVersionCookie is a cookie used only for QueryVersion requests. +type QueryVersionCookie struct { + *xgb.Cookie +} + +// QueryVersion sends a checked request. +// If an error occurs, it will be returned with the reply by calling QueryVersionCookie.Reply() +func QueryVersion(c *xgb.Conn) QueryVersionCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(true, true) + c.NewRequest(queryVersionRequest(c), cookie) + return QueryVersionCookie{cookie} +} + +// QueryVersionUnchecked sends an unchecked request. +// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent. +func QueryVersionUnchecked(c *xgb.Conn) QueryVersionCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(false, true) + c.NewRequest(queryVersionRequest(c), cookie) + return QueryVersionCookie{cookie} +} + +// QueryVersionReply represents the data returned from a QueryVersion request. +type QueryVersionReply struct { + Sequence uint16 // sequence number of the request for this reply + Length uint32 // number of bytes in this reply + // padding: 1 bytes + MajorVersion uint16 + MinorVersion uint16 +} + +// Reply blocks and returns the reply data for a QueryVersion request. +func (cook QueryVersionCookie) Reply() (*QueryVersionReply, error) { + buf, err := cook.Cookie.Reply() + if err != nil { + return nil, err + } + if buf == nil { + return nil, nil + } + return queryVersionReply(buf), nil +} + +// queryVersionReply reads a byte slice into a QueryVersionReply value. +func queryVersionReply(buf []byte) *QueryVersionReply { + v := new(QueryVersionReply) + b := 1 // skip reply determinant + + b += 1 // padding + + v.Sequence = xgb.Get16(buf[b:]) + b += 2 + + v.Length = xgb.Get32(buf[b:]) // 4-byte units + b += 4 + + v.MajorVersion = xgb.Get16(buf[b:]) + b += 2 + + v.MinorVersion = xgb.Get16(buf[b:]) + b += 2 + + return v +} + +// Write request to wire for QueryVersion +// queryVersionRequest writes a QueryVersion request to a byte slice. +func queryVersionRequest(c *xgb.Conn) []byte { + size := 4 + b := 0 + buf := make([]byte, size) + + c.ExtLock.RLock() + buf[b] = c.Extensions["SHAPE"] + c.ExtLock.RUnlock() + b += 1 + + buf[b] = 0 // request opcode + b += 1 + + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units + b += 2 + + return buf +} + +// RectanglesCookie is a cookie used only for Rectangles requests. +type RectanglesCookie struct { + *xgb.Cookie +} + +// Rectangles sends an unchecked request. +// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent. +func Rectangles(c *xgb.Conn, Operation Op, DestinationKind Kind, Ordering byte, DestinationWindow xproto.Window, XOffset int16, YOffset int16, Rectangles []xproto.Rectangle) RectanglesCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'Rectangles' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(false, false) + c.NewRequest(rectanglesRequest(c, Operation, DestinationKind, Ordering, DestinationWindow, XOffset, YOffset, Rectangles), cookie) + return RectanglesCookie{cookie} +} + +// RectanglesChecked sends a checked request. +// If an error occurs, it can be retrieved using RectanglesCookie.Check() +func RectanglesChecked(c *xgb.Conn, Operation Op, DestinationKind Kind, Ordering byte, DestinationWindow xproto.Window, XOffset int16, YOffset int16, Rectangles []xproto.Rectangle) RectanglesCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'Rectangles' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(true, false) + c.NewRequest(rectanglesRequest(c, Operation, DestinationKind, Ordering, DestinationWindow, XOffset, YOffset, Rectangles), cookie) + return RectanglesCookie{cookie} +} + +// Check returns an error if one occurred for checked requests that are not expecting a reply. +// This cannot be called for requests expecting a reply, nor for unchecked requests. +func (cook RectanglesCookie) Check() error { + return cook.Cookie.Check() +} + +// Write request to wire for Rectangles +// rectanglesRequest writes a Rectangles request to a byte slice. +func rectanglesRequest(c *xgb.Conn, Operation Op, DestinationKind Kind, Ordering byte, DestinationWindow xproto.Window, XOffset int16, YOffset int16, Rectangles []xproto.Rectangle) []byte { + size := xgb.Pad((16 + xgb.Pad((len(Rectangles) * 8)))) + b := 0 + buf := make([]byte, size) + + c.ExtLock.RLock() + buf[b] = c.Extensions["SHAPE"] + c.ExtLock.RUnlock() + b += 1 + + buf[b] = 1 // request opcode + b += 1 + + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units + b += 2 + + buf[b] = byte(Operation) + b += 1 + + buf[b] = byte(DestinationKind) + b += 1 + + buf[b] = Ordering + b += 1 + + b += 1 // padding + + xgb.Put32(buf[b:], uint32(DestinationWindow)) + b += 4 + + xgb.Put16(buf[b:], uint16(XOffset)) + b += 2 + + xgb.Put16(buf[b:], uint16(YOffset)) + b += 2 + + b += xproto.RectangleListBytes(buf[b:], Rectangles) + + return buf +} + +// SelectInputCookie is a cookie used only for SelectInput requests. +type SelectInputCookie struct { + *xgb.Cookie +} + +// SelectInput sends an unchecked request. +// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent. +func SelectInput(c *xgb.Conn, DestinationWindow xproto.Window, Enable bool) SelectInputCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'SelectInput' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(false, false) + c.NewRequest(selectInputRequest(c, DestinationWindow, Enable), cookie) + return SelectInputCookie{cookie} +} + +// SelectInputChecked sends a checked request. +// If an error occurs, it can be retrieved using SelectInputCookie.Check() +func SelectInputChecked(c *xgb.Conn, DestinationWindow xproto.Window, Enable bool) SelectInputCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["SHAPE"]; !ok { + panic("Cannot issue request 'SelectInput' using the uninitialized extension 'SHAPE'. shape.Init(connObj) must be called first.") + } + cookie := c.NewCookie(true, false) + c.NewRequest(selectInputRequest(c, DestinationWindow, Enable), cookie) + return SelectInputCookie{cookie} +} + +// Check returns an error if one occurred for checked requests that are not expecting a reply. +// This cannot be called for requests expecting a reply, nor for unchecked requests. +func (cook SelectInputCookie) Check() error { + return cook.Cookie.Check() +} + +// Write request to wire for SelectInput +// selectInputRequest writes a SelectInput request to a byte slice. +func selectInputRequest(c *xgb.Conn, DestinationWindow xproto.Window, Enable bool) []byte { + size := 12 + b := 0 + buf := make([]byte, size) + + c.ExtLock.RLock() + buf[b] = c.Extensions["SHAPE"] + c.ExtLock.RUnlock() + b += 1 + + buf[b] = 6 // request opcode + b += 1 + + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units + b += 2 + + xgb.Put32(buf[b:], uint32(DestinationWindow)) + b += 4 + + if Enable { + buf[b] = 1 + } else { + buf[b] = 0 + } + b += 1 + + b += 3 // padding + + return buf +} |