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Made the tabs of Tab controls on Windows children of the main tab control itself; this will let us be transparent... hopefully.

This commit is contained in:
Pietro Gagliardi 2014-08-06 20:53:11 -04:00
parent d9f9d40294
commit 2ea9987c98
1 changed files with 9 additions and 13 deletions
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22
redo/tab_windows.go
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@ -10,7 +10,7 @@ import (
import "C"
/*
On Windows, container controls are just regular controls; their children have to be children of the parent window, and changing the contents of a switching container (such as a tab control) must be done manually.
On Windows, container controls are just regular controls that notify their parent when the user wants to do things; changing the contents of a switching container (such as a tab control) must be done manually.
We'll create a dummy window using the pre-existing Window window class for each tab page. This makes showing and hiding tabs a matter of showing and hiding one control.
@ -21,7 +21,6 @@ TODO
type tab struct {
_hwnd C.HWND
tabs []*container
parent *controlParent
}
func newTab() Tab {
@ -38,10 +37,8 @@ func newTab() Tab {
func (t *tab) Append(name string, control Control) {
c := newContainer(control)
c.setParent(&controlParent{t._hwnd})
t.tabs = append(t.tabs, c)
if t.parent != nil {
c.setParent(t.parent)
}
// initially hide tab 1..n controls; if we don't, they'll appear over other tabs, resulting in weird behavior
if len(t.tabs) != 1 {
t.tabs[len(t.tabs) - 1].hide()
@ -67,10 +64,6 @@ func (t *tab) hwnd() C.HWND {
func (t *tab) setParent(p *controlParent) {
basesetParent(t, p)
for _, c := range t.tabs {
c.setParent(p)
}
t.parent = p
}
func (t *tab) allocate(x int, y int, width int, height int, d *sizing) []*allocation {
@ -96,13 +89,16 @@ func (t *tab) commitResize(c *allocation, d *sizing) {
var r C.RECT
// figure out what the rect for each child is...
r.left = C.LONG(c.x) // load structure with the window's rect
r.top = C.LONG(c.y)
r.right = C.LONG(c.x + c.width)
r.bottom = C.LONG(c.y + c.height)
// the tab contents are children of the tab itself, so ignore c.x and c.y, which are relative to the window!
r.left = C.LONG(0)
r.top = C.LONG(0)
r.right = C.LONG(c.width)
r.bottom = C.LONG(c.height)
println(r.left, r.top, r.right, r.bottom)
C.tabGetContentRect(t._hwnd, &r)
// and resize tabs
// don't resize just the current tab; resize all tabs!
println(r.left, r.top, r.right, r.bottom)
for _, c := range t.tabs {
// because each widget is actually a child of the Window, the origin is the one we calculated above
c.move(&r)