83 lines
1.7 KiB
Go
83 lines
1.7 KiB
Go
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// 15 august 2014
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package ui
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// #include "winapi_windows.h"
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import "C"
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type group struct {
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_hwnd C.HWND
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_textlen C.LONG
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*container
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}
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func newGroup(text string, control Control) Group {
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hwnd := C.newControl(buttonclass,
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C.BS_GROUPBOX,
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C.WS_EX_CONTROLPARENT)
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g := &group{
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_hwnd: hwnd,
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container: newContainer(control),
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}
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g.SetText(text)
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C.controlSetControlFont(g._hwnd)
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g.container.setParent(g._hwnd)
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g.container.isGroup = true
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return g
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}
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func (g *group) Text() string {
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return baseText(g)
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}
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func (g *group) SetText(text string) {
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baseSetText(g, text)
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}
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func (g *group) hwnd() C.HWND {
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return g._hwnd
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}
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func (g *group) textlen() C.LONG {
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return g._textlen
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}
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func (g *group) settextlen(len C.LONG) {
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g._textlen = len
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}
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func (g *group) setParent(p *controlParent) {
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basesetParent(g, p)
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}
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func (g *group) allocate(x int, y int, width int, height int, d *sizing) []*allocation {
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return baseallocate(g, x, y, width, height, d)
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}
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func (g *group) preferredSize(d *sizing) (width, height int) {
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width, height = g.child.preferredSize(d)
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if width < int(g._textlen) { // if the text is longer, try not to truncate
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width = int(g._textlen)
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}
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// the two margin constants come from container_windows.go
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return width, height + fromdlgunitsY(groupYMarginTop, d) + fromdlgunitsY(groupYMarginBottom, d)
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}
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func (g *group) commitResize(c *allocation, d *sizing) {
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var r C.RECT
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// pretend that the client area of the group box only includes the actual empty space
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// container will handle the necessary adjustments properly
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r.left = 0
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r.top = 0
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r.right = C.LONG(c.width)
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r.bottom = C.LONG(c.height)
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g.container.move(&r)
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basecommitResize(g, c, d)
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}
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func (g *group) getAuxResizeInfo(d *sizing) {
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basegetAuxResizeInfo(g, d)
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}
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