libui/windows/group.c

110 lines
3.2 KiB
C

// 11 may 2015
#include "uipriv_windows.h"
struct group {
uiGroup g;
HWND hwnd;
uiBin *bin;
void (*baseResize)(uiControl *, intmax_t, intmax_t, intmax_t, intmax_t, uiSizing *);
};
static BOOL onWM_COMMAND(uiControl *c, WORD code, LRESULT *lResult)
{
return FALSE;
}
static BOOL onWM_NOTIFY(uiControl *c, NMHDR *nm, LRESULT *lResult)
{
return FALSE;
}
static void onDestroy(void *data)
{
struct group *g = (struct group *) data;
uiBinRemoveOSParent(g->bin);
uiControlDestroy(uiControl(g->bin));
uiFree(g);
}
// TODO get source
#define groupXMargin 6
#define groupYMarginTop 11 /* note this value /includes the groupbox label */
#define groupYMarginBottom 7
// unfortunately because the client area of a groupbox includes the frame and caption text, we have to apply some margins ourselves, even if we don't want "any"
// these were deduced by hand based on the standard DLU conversions; the X and Y top margins are the width and height, respectively, of one character cell
// they can be fine-tuned later
#define groupUnmarginedXMargin 4
#define groupUnmarginedYMarginTop 8
#define groupUnmarginedYMarginBottom 3
static void groupPreferredSize(uiControl *c, uiSizing *d, intmax_t *width, intmax_t *height)
{
struct group *g = (struct group *) c;
uiControlPreferredSize(uiControl(g->bin), d, width, height);
*width += uiWindowsDlgUnitsToX(groupUnmarginedXMargin, d->Sys->BaseX) * 2;
*height += uiWindowsDlgUnitsToY(groupUnmarginedYMarginTop, d->Sys->BaseY) + uiWindowsDlgUnitsToY(groupUnmarginedYMarginBottom, d->Sys->BaseY);
}
static void groupResize(uiControl *c, intmax_t x, intmax_t y, intmax_t width, intmax_t height, uiSizing *d)
{
struct group *g = (struct group *) c;
RECT r;
(*(g->baseResize))(uiControl(g), x, y, width, height, d);
if (GetClientRect(g->hwnd, &r) == 0)
logLastError("error getting uiGroup client rect for bin resize in groupResize()");
r.left += uiWindowsDlgUnitsToX(groupUnmarginedXMargin, d->Sys->BaseX);
r.top += uiWindowsDlgUnitsToY(groupUnmarginedYMarginTop, d->Sys->BaseY);
r.right -= uiWindowsDlgUnitsToX(groupUnmarginedXMargin, d->Sys->BaseX);
r.bottom -= uiWindowsDlgUnitsToY(groupUnmarginedYMarginBottom, d->Sys->BaseY);
uiBinResizeRootAndUpdate(g->bin, r.left, r.top, r.right - r.left, r.bottom - r.top);
}
static void groupSetChild(uiGroup *gg, uiControl *c)
{
struct group *g = (struct group *) gg;
uiBinSetMainControl(g->bin, c);
uiContainerUpdate(uiContainer(g->bin));
}
uiGroup *uiNewGroup(const char *text)
{
struct group *g;
uiWindowsMakeControlParams p;
WCHAR *wtext;
g = uiNew(struct group);
p.dwExStyle = WS_EX_CONTROLPARENT;
p.lpClassName = L"button";
wtext = toUTF16(text);
p.lpWindowName = wtext;
p.dwStyle = BS_GROUPBOX;
p.hInstance = hInstance;
p.useStandardControlFont = TRUE;
p.onWM_COMMAND = onWM_COMMAND;
p.onWM_NOTIFY = onWM_NOTIFY;
p.onDestroy = onDestroy;
p.onDestroyData = g;
uiWindowsMakeControl(uiControl(g), &p);
uiFree(wtext);
g->hwnd = (HWND) uiControlHandle(uiControl(g));
g->bin = newBin();
uiBinSetOSParent(g->bin, (uintptr_t) (g->hwnd));
uiControl(g)->PreferredSize = groupPreferredSize;
g->baseResize = uiControl(g)->Resize;
uiControl(g)->Resize = groupResize;
// TODO enable, disable, sysfunc
uiGroup(g)->SetChild = groupSetChild;
return uiGroup(g);
}