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authorPietro Gagliardi <[email protected]>2014-08-30 23:02:02 -0400
committerPietro Gagliardi <[email protected]>2014-08-30 23:02:02 -0400
commit77bf566ebbcb62acd4d08d905d9542d6ff9b6b80 (patch)
treeeeb8e72bc3bf57f5be7f0c0af4319189ac6de838 /redo/container_windows.go
parent155899c65ed32245e2ccad4197a10c77017d835b (diff)
...in with the new.
Diffstat (limited to 'redo/container_windows.go')
-rw-r--r--redo/container_windows.go147
1 files changed, 0 insertions, 147 deletions
diff --git a/redo/container_windows.go b/redo/container_windows.go
deleted file mode 100644
index d3fd327..0000000
--- a/redo/container_windows.go
+++ /dev/null
@@ -1,147 +0,0 @@
-// 4 august 2014
-
-package ui
-
-import (
- "fmt"
- "syscall"
- "unsafe"
-)
-
-// #include "winapi_windows.h"
-import "C"
-
-type container struct {
- containerbase
- hwnd C.HWND
- nchildren int
- isGroup bool
-}
-
-type sizing struct {
- sizingbase
-
- // for size calculations
- baseX C.int
- baseY C.int
- internalLeading C.LONG // for Label; see Label.commitResize() for details
-
- // for the actual resizing
- // possibly the HDWP
-}
-
-func makeContainerWindowClass() error {
- var errmsg *C.char
-
- err := C.makeContainerWindowClass(&errmsg)
- if err != 0 || errmsg != nil {
- return fmt.Errorf("%s: %v", C.GoString(errmsg), syscall.Errno(err))
- }
- return nil
-}
-
-func newContainer(control Control) *container {
- c := new(container)
- hwnd := C.newContainer(unsafe.Pointer(c))
- if hwnd != c.hwnd {
- panic(fmt.Errorf("inconsistency: hwnd returned by CreateWindowEx() (%p) and hwnd stored in container (%p) differ", hwnd, c.hwnd))
- }
- c.child = control
- c.child.setParent(&controlParent{c})
- return c
-}
-
-func (c *container) setParent(hwnd C.HWND) {
- C.controlSetParent(c.hwnd, hwnd)
-}
-
-// this is needed because Windows won't move/resize a child window for us
-func (c *container) move(r *C.RECT) {
- C.moveWindow(c.hwnd, C.int(r.left), C.int(r.top), C.int(r.right - r.left), C.int(r.bottom - r.top))
-}
-
-func (c *container) show() {
- C.ShowWindow(c.hwnd, C.SW_SHOW)
-}
-
-func (c *container) hide() {
- C.ShowWindow(c.hwnd, C.SW_HIDE)
-}
-
-//export storeContainerHWND
-func storeContainerHWND(data unsafe.Pointer, hwnd C.HWND) {
- c := (*container)(data)
- c.hwnd = hwnd
-}
-
-//export containerResize
-func containerResize(data unsafe.Pointer, r *C.RECT) {
- c := (*container)(data)
- // the origin of any window's content area is always (0, 0), but let's use the values from the RECT just to be safe
- c.resize(int(r.left), int(r.top), int(r.right - r.left), int(r.bottom - r.top))
-}
-
-// For Windows, Microsoft just hands you a list of preferred control sizes as part of the MSDN documentation and tells you to roll with it.
-// These sizes are given in "dialog units", which are independent of the font in use.
-// We need to convert these into standard pixels, which requires we get the device context of the OS window.
-// References:
-// - http://msdn.microsoft.com/en-us/library/ms645502%28VS.85%29.aspx - the calculation needed
-// - http://support.microsoft.com/kb/125681 - to get the base X and Y
-// (thanks to http://stackoverflow.com/questions/58620/default-button-size)
-// In my tests (see https://github.com/andlabs/windlgunits), the GetTextExtentPoint32() option for getting the base X produces much more accurate results than the tmAveCharWidth option when tested against the sample values given in http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing, but can be off by a pixel in either direction (probably due to rounding errors).
-
-// note on MulDiv():
-// div will not be 0 in the usages below
-// we also ignore overflow; that isn't likely to happen for our use case anytime soon
-
-func fromdlgunitsX(du int, d *sizing) int {
- return int(C.MulDiv(C.int(du), d.baseX, 4))
-}
-
-func fromdlgunitsY(du int, d *sizing) int {
- return int(C.MulDiv(C.int(du), d.baseY, 8))
-}
-
-const (
- marginDialogUnits = 7
- paddingDialogUnits = 4
-
- groupXMargin = 6
- groupYMarginTop = 11 // note this value /includes the groupbox label/
- groupYMarginBottom = 7
-)
-
-func (c *container) beginResize() (d *sizing) {
- var baseX, baseY C.int
- var internalLeading C.LONG
-
- d = new(sizing)
-
- C.calculateBaseUnits(c.hwnd, &baseX, &baseY, &internalLeading)
- d.baseX = baseX
- d.baseY = baseY
- d.internalLeading = internalLeading
-
- if spaced {
- d.xmargin = fromdlgunitsX(marginDialogUnits, d)
- d.ymargintop = fromdlgunitsY(marginDialogUnits, d)
- d.ymarginbottom = d.ymargintop
- d.xpadding = fromdlgunitsX(paddingDialogUnits, d)
- d.ypadding = fromdlgunitsY(paddingDialogUnits, d)
- }
- if c.isGroup {
- // note that these values apply regardless of whether or not spaced is set
- // this is because Windows groupboxes have the client rect spanning the entire size of the control, not just the active work area
- // the measurements Microsoft give us are for spaced margining; let's just use them
- d.xmargin = fromdlgunitsX(groupXMargin, d)
- d.ymargintop = fromdlgunitsY(groupYMarginTop, d)
- d.ymarginbottom = fromdlgunitsY(groupYMarginBottom, d)
-
- }
-
- return d
-}
-
-func (c *container) translateAllocationCoords(allocations []*allocation, winwidth, winheight int) {
- // no translation needed on windows
-}