libui/redo/windows/label.c

70 lines
1.6 KiB
C

// 11 april 2015
#include "uipriv_windows.h"
struct label {
uiLabel l;
HWND hwnd;
};
uiDefineControlType(uiLabel, uiTypeLabel, struct label)
static uintptr_t labelHandle(uiControl *c)
{
struct label *l = (struct label *) c;
return (uintptr_t) (l->hwnd);
}
// via http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
#define labelHeight 8
static void labelPreferredSize(uiControl *c, uiSizing *d, intmax_t *width, intmax_t *height)
{
struct label *l = (struct label *) c;
*width = uiWindowsWindowTextWidth(l->hwnd);
*height = uiWindowsDlgUnitsToY(labelHeight, d->Sys->BaseY);
}
static char *labelText(uiLabel *ll)
{
struct label *l = (struct label *) ll;
return uiWindowsUtilText(l->hwnd);
}
static void labelSetText(uiLabel *ll, const char *text)
{
struct label *l = (struct label *) ll;
uiWindowsUtilSetText(l->hwnd, text);
// changing the text might necessitate a change in the label's size
uiControlQueueResize(uiControl(l));
}
uiLabel *uiNewLabel(const char *text)
{
struct label *l;
WCHAR *wtext;
l = (struct label *) uiWindowsNewSingleHWNDControl(uiTypeLabel());
wtext = toUTF16(text);
l->hwnd = uiWindowsUtilCreateControlHWND(0,
L"static", wtext,
// SS_LEFTNOWORDWRAP clips text past the end; SS_NOPREFIX avoids accelerator translation
// controls are vertically aligned to the top by default (thanks Xeek in irc.freenode.net/#winapi)
SS_LEFTNOWORDWRAP | SS_NOPREFIX,
hInstance, NULL,
TRUE);
uiFree(wtext);
uiControl(l)->Handle = labelHandle;
uiControl(l)->PreferredSize = labelPreferredSize;
uiLabel(l)->Text = labelText;
uiLabel(l)->SetText = labelSetText;
return uiLabel(l);
}