energy/cef/winapi/def-win-api-callback.go

//----------------------------------------
//
// Copyright © yanghy. All Rights Reserved.
//
// Licensed under Apache License Version 2.0, January 2004
//
// https://www.apache.org/licenses/LICENSE-2.0
//
//----------------------------------------

// energy - lcl window api - callback
// TODO : All functions of this API have not been fully tested yet

package winapi

//import (
//	"fmt"
//	"github.com/energye/energy/v2/cef/internal/def"
//	"github.com/energye/energy/v2/common/imports"
//	"github.com/energye/energy/v2/types"
//	"github.com/energye/golcl/lcl"
//	"github.com/energye/golcl/lcl/api"
//	"unsafe"
//)
//
//type enumDisplayMonitorsProc func(hMonitor types.HMONITOR, hdcMonitor types.HDC, lprcMonitor types.Rect, dwData types.LPARAM) types.LongBool
//type enumFontFamiliesProc func(ELogFont *types.TagEnumLogFontA, Metric *types.TNewTextMetric, FontType types.LongInt, Data types.LPARAM) types.LongInt
//type enumFontFamiliesExProc func(ELogFont *types.TagEnumLogFontExA, Metric *types.TNewTextMetricEx, FontType types.LongInt, Data types.LPARAM) types.LongInt
//
//type EnumDisplayMonitorsCallback struct {
//	instance uintptr
//}
//
//type EnumFontFamiliesCallback struct {
//	instance uintptr
//}
//
//type EnumFontFamiliesExCallback struct {
//	instance uintptr
//}
//
//func NewEnumDisplayMonitorsCallback() *EnumDisplayMonitorsCallback {
//	return &EnumDisplayMonitorsCallback{}
//}
//
//func (m *EnumDisplayMonitorsCallback) Callback(fn enumDisplayMonitorsProc) {
//	if m.instance == 0 {
//		m.instance = api.MakeEventDataPtr(fn)
//	}
//}
//
//// Free 使用完需要将释放掉
//func (m *EnumDisplayMonitorsCallback) Free() {
//	if m.instance != 0 {
//		api.RemoveEventElement(m.instance)
//		imports.Proc(def.CEF_Win_EnumDisplayMonitorsCallbackFree).Call()
//	}
//}
//
//func NewEnumFontFamiliesCallback() *EnumFontFamiliesCallback {
//	return &EnumFontFamiliesCallback{}
//}
//
//func (m *EnumFontFamiliesCallback) Callback(fn enumFontFamiliesProc) {
//	if m.instance == 0 {
//		m.instance = api.MakeEventDataPtr(fn)
//	}
//}
//
//// Free 使用完需要将释放掉
//func (m *EnumFontFamiliesCallback) Free() {
//	if m.instance != 0 {
//		api.RemoveEventElement(m.instance)
//		imports.Proc(def.CEF_Win_EnumFontFamiliesCallbackFree).Call()
//	}
//}
//
//func NewEnumFontFamiliesExCallback() *EnumFontFamiliesExCallback {
//	return &EnumFontFamiliesExCallback{}
//}
//
//func (m *EnumFontFamiliesExCallback) Callback(fn enumFontFamiliesExProc) {
//	if m.instance == 0 {
//		m.instance = api.MakeEventDataPtr(fn)
//		imports.Proc(def.CEF_Win_EnumFontFamiliesExCallbackFree).Call()
//	}
//}
//
//// Free 使用完需要将释放掉
//func (m *EnumFontFamiliesExCallback) Free() {
//	if m.instance != 0 {
//		api.RemoveEventElement(m.instance)
//	}
//}
//
//func init() {
//	lcl.RegisterExtEventCallback(func(fn interface{}, getVal func(idx int) uintptr) bool {
//		getPtr := func(i int) unsafe.Pointer {
//			return unsafe.Pointer(getVal(i))
//		}
//		switch fn.(type) {
//		case enumDisplayMonitorsProc:
//			var (
//				hMonitor    = types.HMONITOR(getVal(0))
//				hdcMonitor  = types.HDC(getVal(1))
//				lprcMonitor = *(*types.Rect)(getPtr(2))
//				dwData      = types.LPARAM(getVal(3))
//				resultPtr   = (*types.LongBool)(getPtr(4))
//			)
//			*resultPtr = fn.(enumDisplayMonitorsProc)(hMonitor, hdcMonitor, lprcMonitor, dwData)
//		case enumFontFamiliesProc:
//			var (
//				ELogFontPtr = (*types.TagEnumLogFontAPtr)(getPtr(0))
//				Metric      = (*types.TNewTextMetric)(getPtr(1))
//				FontType    = types.LongInt(getVal(2))
//				Data        = types.LPARAM(getVal(3))
//				resultPtr   = (*types.LongInt)(getPtr(4))
//			)
//			ELogFont := &types.TagEnumLogFontA{
//				ElfLogFont:  (*types.LogFontA)(unsafe.Pointer(ELogFontPtr.ElfLogFont)),
//				ElfFullName: api.GoStr(ELogFontPtr.ElfFullName),
//				ElfStyle:    api.GoStr(ELogFontPtr.ElfStyle),
//			}
//			ELogFont.ElfLogFont.LfFaceName = api.GoStr(ELogFontPtr.LfFaceName)
//			*resultPtr = fn.(enumFontFamiliesProc)(ELogFont, Metric, FontType, Data)
//		case enumFontFamiliesExProc:
//			var (
//				ELogFontPtr = (*types.TagEnumLogFontExAPtr)(getPtr(0))
//				Metric      = (*types.TNewTextMetricEx)(getPtr(1))
//				FontType    = types.LongInt(getVal(2))
//				Data        = types.LPARAM(getVal(3))
//				resultPtr   = (*types.LongInt)(getPtr(4))
//			)
//			ELogFont := &types.TagEnumLogFontExA{
//				ElfLogFont: (*types.LogFontA)(unsafe.Pointer(ELogFontPtr.ElfLogFont)),
//			}
//			fmt.Println("ELogFontPtr", ELogFont.ElfLogFont)
//			//fmt.Println("Metric", Metric)
//			*resultPtr = fn.(enumFontFamiliesExProc)(ELogFont, Metric, FontType, Data)
//		default:
//			return false
//		}
//		return true
//	})
//}