102 lines
2.1 KiB
Go
102 lines
2.1 KiB
Go
// 12 july 2014
|
|
|
|
package ui
|
|
|
|
import (
|
|
"fmt"
|
|
"syscall"
|
|
"unsafe"
|
|
)
|
|
|
|
// #include "winapi_windows.h"
|
|
import "C"
|
|
|
|
type window struct {
|
|
hwnd C.HWND
|
|
shownbefore bool
|
|
|
|
closing *event
|
|
|
|
*container
|
|
}
|
|
|
|
func makeWindowWindowClass() error {
|
|
var errmsg *C.char
|
|
|
|
err := C.makeWindowWindowClass(&errmsg)
|
|
if err != 0 || errmsg != nil {
|
|
return fmt.Errorf("%s: %v", C.GoString(errmsg), syscall.Errno(err))
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func newWindow(title string, width int, height int, control Control) *window {
|
|
w := &window{
|
|
// hwnd set in WM_CREATE handler
|
|
closing: newEvent(),
|
|
container: newContainer(control),
|
|
}
|
|
hwnd := C.newWindow(toUTF16(title), C.int(width), C.int(height), unsafe.Pointer(w))
|
|
if hwnd != w.hwnd {
|
|
panic(fmt.Errorf("inconsistency: hwnd returned by CreateWindowEx() (%p) and hwnd stored in Window (%p) differ", hwnd, w.hwnd))
|
|
}
|
|
hresult := C.EnableThemeDialogTexture(w.hwnd, C.ETDT_ENABLE | C.ETDT_USETABTEXTURE)
|
|
if hresult != C.S_OK {
|
|
panic(fmt.Errorf("error setting tab background texture on Window; HRESULT: 0x%X", hresult))
|
|
}
|
|
w.container.setParent(w.hwnd)
|
|
return w
|
|
}
|
|
|
|
func (w *window) Title() string {
|
|
return getWindowText(w.hwnd)
|
|
}
|
|
|
|
func (w *window) SetTitle(title string) {
|
|
C.setWindowText(w.hwnd, toUTF16(title))
|
|
}
|
|
|
|
func (w *window) Show() {
|
|
if !w.shownbefore {
|
|
C.ShowWindow(w.hwnd, C.nCmdShow)
|
|
C.updateWindow(w.hwnd)
|
|
w.shownbefore = true
|
|
} else {
|
|
C.ShowWindow(w.hwnd, C.SW_SHOW)
|
|
}
|
|
}
|
|
|
|
func (w *window) Hide() {
|
|
C.ShowWindow(w.hwnd, C.SW_HIDE)
|
|
}
|
|
|
|
func (w *window) Close() {
|
|
C.windowClose(w.hwnd)
|
|
}
|
|
|
|
func (w *window) OnClosing(e func() bool) {
|
|
w.closing.setbool(e)
|
|
}
|
|
|
|
//export storeWindowHWND
|
|
func storeWindowHWND(data unsafe.Pointer, hwnd C.HWND) {
|
|
w := (*window)(data)
|
|
w.hwnd = hwnd
|
|
}
|
|
|
|
//export windowResize
|
|
func windowResize(data unsafe.Pointer, r *C.RECT) {
|
|
w := (*window)(data)
|
|
// the origin of the window's content area is always (0, 0), but let's use the values from the RECT just to be safe
|
|
w.container.move(r)
|
|
}
|
|
|
|
//export windowClosing
|
|
func windowClosing(data unsafe.Pointer) {
|
|
w := (*window)(data)
|
|
close := w.closing.fire()
|
|
if close {
|
|
C.windowClose(w.hwnd)
|
|
}
|
|
}
|