zorldo

Goofing around with Ebiten
git clone git://bsandro.tech/zorldo
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callback_windows.go (2229B)


      1 // Copyright 2021 The Ebiten Authors
      2 //
      3 // Licensed under the Apache License, Version 2.0 (the "License");
      4 // you may not use this file except in compliance with the License.
      5 // You may obtain a copy of the License at
      6 //
      7 //     http://www.apache.org/licenses/LICENSE-2.0
      8 //
      9 // Unless required by applicable law or agreed to in writing, software
     10 // distributed under the License is distributed on an "AS IS" BASIS,
     11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 // See the License for the specific language governing permissions and
     13 // limitations under the License.
     14 
     15 package glfw
     16 
     17 import (
     18 	"golang.org/x/sys/windows"
     19 )
     20 
     21 func ToCharModsCallback(cb func(window *Window, char rune, mods ModifierKey)) CharModsCallback {
     22 	if cb == nil {
     23 		return 0
     24 	}
     25 	return CharModsCallback(windows.NewCallbackCDecl(func(window uintptr, char rune, mods ModifierKey) uintptr {
     26 		cb(theGLFWWindows.get(window), char, mods)
     27 		return 0
     28 	}))
     29 }
     30 
     31 func ToCloseCallback(cb func(window *Window)) CloseCallback {
     32 	if cb == nil {
     33 		return 0
     34 	}
     35 	return CloseCallback(windows.NewCallbackCDecl(func(window uintptr) uintptr {
     36 		cb(theGLFWWindows.get(window))
     37 		return 0
     38 	}))
     39 }
     40 
     41 func ToFramebufferSizeCallback(cb func(window *Window, width int, height int)) FramebufferSizeCallback {
     42 	if cb == nil {
     43 		return 0
     44 	}
     45 	return FramebufferSizeCallback(windows.NewCallbackCDecl(func(window uintptr, width int, height int) uintptr {
     46 		cb(theGLFWWindows.get(window), width, height)
     47 		return 0
     48 	}))
     49 }
     50 
     51 func ToScrollCallback(cb func(window *Window, xoff float64, yoff float64)) ScrollCallback {
     52 	if cb == nil {
     53 		return 0
     54 	}
     55 	return ScrollCallback(windows.NewCallbackCDecl(func(window uintptr, xoff *float64, yoff *float64) uintptr {
     56 		// xoff and yoff were originally float64, but there is no good way to pass them on 32bit
     57 		// machines via NewCallback. We've fixed GLFW side to use pointer values.
     58 		cb(theGLFWWindows.get(window), *xoff, *yoff)
     59 		return 0
     60 	}))
     61 }
     62 
     63 func ToSizeCallback(cb func(window *Window, width int, height int)) SizeCallback {
     64 	if cb == nil {
     65 		return 0
     66 	}
     67 	return SizeCallback(windows.NewCallbackCDecl(func(window uintptr, width int, height int) uintptr {
     68 		cb(theGLFWWindows.get(window), width, height)
     69 		return 0
     70 	}))
     71 }