1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// 16 august 2014
package ui
import (
"image"
"unsafe"
)
// #include "winapi_windows.h"
import "C"
type imagelist struct {
list []C.HBITMAP
width []int
height []int
}
func newImageList() ImageList {
return new(imagelist)
}
func (i *imagelist) Append(img *image.RGBA) {
i.list = append(i.list, C.unscaledBitmap(unsafe.Pointer(img), C.intptr_t(img.Rect.Dx()), C.intptr_t(img.Rect.Dy())))
i.width = append(i.width, img.Rect.Dx())
i.height = append(i.height, img.Rect.Dy())
}
func (i *imagelist) Len() ImageIndex {
return ImageIndex(len(i.list))
}
type imageListApply interface {
apply(C.HWND, C.UINT)
}
func (i *imagelist) apply(hwnd C.HWND, uMsg C.UINT) {
width := C.GetSystemMetrics(C.SM_CXSMICON)
height := C.GetSystemMetrics(C.SM_CYSMICON)
il := C.newImageList(width, height)
for index := range i.list {
C.addImage(il, hwnd, i.list[index], C.int(i.width[index]), C.int(i.height[index]), width, height)
}
C.SendMessageW(hwnd, uMsg, 0, C.LPARAM(uintptr(unsafe.Pointer(il))))
}
|
