118 lines
2.9 KiB
Go
118 lines
2.9 KiB
Go
package main
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// Event types
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func (e *Event) Define(c *Context) {
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c.Putln("// Event definition %s (%d)", e.SrcName(), e.Number)
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c.Putln("// Size: %s", e.Size())
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c.Putln("type %s struct {", e.EvType())
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c.Putln("Sequence uint16")
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for _, field := range e.Fields {
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field.Define(c)
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}
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c.Putln("}")
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c.Putln("")
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// Read defines a function that transforms a byte slice into this
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// event struct.
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e.Read(c)
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// Write defines a function that transoforms this event struct into
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// a byte slice.
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e.Write(c)
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// Makes sure that this event type is an Event interface.
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c.Putln("func (v %s) ImplementsEvent() { }", e.EvType())
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c.Putln("")
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// Let's the XGB event loop read this event.
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c.Putln("func init() {")
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c.Putln("newEventFuncs[%d] = New%s", e.Number, e.SrcName())
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c.Putln("}")
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c.Putln("")
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}
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func (e *Event) Read(c *Context) {
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c.Putln("// Event read %s", e.SrcName())
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c.Putln("func New%s(buf []byte) %s {", e.SrcName(), e.EvType())
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c.Putln("v := %s{}", e.EvType())
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c.Putln("b := 1 // don't read event number")
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c.Putln("")
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for i, field := range e.Fields {
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if i == 1 && !e.NoSequence {
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c.Putln("v.Sequence = get16(buf[b:])")
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c.Putln("b += 2")
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c.Putln("")
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}
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field.Read(c)
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c.Putln("")
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}
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c.Putln("return v")
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c.Putln("}")
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c.Putln("")
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}
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func (e *Event) Write(c *Context) {
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c.Putln("// Event write %s", e.SrcName())
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c.Putln("func (v %s) Bytes() []byte {", e.EvType())
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c.Putln("buf := make([]byte, %s)", e.Size())
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c.Putln("b := 0")
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c.Putln("")
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c.Putln("// write event number")
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c.Putln("buf[b] = %d", e.Number)
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c.Putln("b += 1")
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c.Putln("")
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for i, field := range e.Fields {
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if i == 1 && !e.NoSequence {
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c.Putln("b += 2 // skip sequence number")
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c.Putln("")
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}
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field.Write(c)
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c.Putln("")
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}
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c.Putln("return buf")
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c.Putln("}")
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c.Putln("")
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}
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// EventCopy types
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func (e *EventCopy) Define(c *Context) {
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c.Putln("// EventCopy definition %s (%d)", e.SrcName(), e.Number)
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c.Putln("")
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c.Putln("const %s = %d", e.SrcName(), e.Number)
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c.Putln("")
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c.Putln("type %s %s", e.EvType(), e.Old.(*Event).EvType())
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c.Putln("")
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// Read defines a function that transforms a byte slice into this
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// event struct.
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e.Read(c)
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// Write defines a function that transoforms this event struct into
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// a byte slice.
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e.Write(c)
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// Makes sure that this event type is an Event interface.
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c.Putln("func (v %s) ImplementsEvent() { }", e.EvType())
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c.Putln("")
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// Let's the XGB event loop read this event.
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c.Putln("func init() {")
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c.Putln("newEventFuncs[%d] = New%s", e.Number, e.SrcName())
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c.Putln("}")
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c.Putln("")
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}
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func (e *EventCopy) Read(c *Context) {
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c.Putln("func New%s(buf []byte) %s {", e.SrcName(), e.EvType())
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c.Putln("return (%s)(New%s(buf))", e.EvType(), e.Old.SrcName())
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c.Putln("}")
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c.Putln("")
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}
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func (e *EventCopy) Write(c *Context) {
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c.Putln("func (v %s) Bytes() []byte {", e.EvType())
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c.Putln("return (%s)(ev).Bytes()", e.Old.(*Event).EvType())
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c.Putln("}")
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c.Putln("")
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}
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