1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
// 20 may 2015
#include "uipriv_windows.hpp"
// we as Common Controls 6 users don't need to worry about the height of comboboxes; see http://blogs.msdn.com/b/oldnewthing/archive/2006/03/10/548537.aspx
struct uiEditableCombobox {
uiWindowsControl c;
HWND hwnd;
void (*onChanged)(uiEditableCombobox *, void *);
void *onChangedData;
};
static BOOL onWM_COMMAND(uiControl *cc, HWND hwnd, WORD code, LRESULT *lResult)
{
uiEditableCombobox *c = uiEditableCombobox(cc);
if (code == CBN_SELCHANGE) {
// like on OS X, this is sent before the edit has been updated :(
if (PostMessage(parentOf(hwnd),
WM_COMMAND,
MAKEWPARAM(GetWindowLongPtrW(hwnd, GWLP_ID), CBN_EDITCHANGE),
(LPARAM) hwnd) == 0)
logLastError(L"error posting CBN_EDITCHANGE after CBN_SELCHANGE");
*lResult = 0;
return TRUE;
}
if (code != CBN_EDITCHANGE)
return FALSE;
(*(c->onChanged))(c, c->onChangedData);
*lResult = 0;
return TRUE;
}
void uiEditableComboboxDestroy(uiControl *cc)
{
uiEditableCombobox *c = uiEditableCombobox(cc);
uiWindowsUnregisterWM_COMMANDHandler(c->hwnd);
uiWindowsEnsureDestroyWindow(c->hwnd);
uiFreeControl(uiControl(c));
}
uiWindowsControlAllDefaultsExceptDestroy(uiEditableCombobox)
// from http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
#define comboboxWidth 107 /* this is actually the shorter progress bar width, but Microsoft only indicates as wide as necessary; LONGTERM */
#define comboboxHeight 14 /* LONGTERM: is this too high? */
static void uiEditableComboboxMinimumSize(uiWindowsControl *cc, int *width, int *height)
{
uiEditableCombobox *c = uiEditableCombobox(cc);
uiWindowsSizing sizing;
int x, y;
x = comboboxWidth;
y = comboboxHeight;
uiWindowsGetSizing(c->hwnd, &sizing);
uiWindowsSizingDlgUnitsToPixels(&sizing, &x, &y);
*width = x;
*height = y;
}
static void defaultOnChanged(uiEditableCombobox *c, void *data)
{
// do nothing
}
void uiEditableComboboxAppend(uiEditableCombobox *c, const char *text)
{
WCHAR *wtext;
LRESULT res;
wtext = toUTF16(text);
res = SendMessageW(c->hwnd, CB_ADDSTRING, 0, (LPARAM) wtext);
if (res == (LRESULT) CB_ERR)
logLastError(L"error appending item to uiEditableCombobox");
else if (res == (LRESULT) CB_ERRSPACE)
logLastError(L"memory exhausted appending item to uiEditableCombobox");
uiFree(wtext);
}
char *uiEditableComboboxText(uiEditableCombobox *c)
{
return uiWindowsWindowText(c->hwnd);
}
void uiEditableComboboxSetText(uiEditableCombobox *c, const char *text)
{
// does not trigger any notifications
uiWindowsSetWindowText(c->hwnd, text);
}
void uiEditableComboboxOnChanged(uiEditableCombobox *c, void (*f)(uiEditableCombobox *c, void *data), void *data)
{
c->onChanged = f;
c->onChangedData = data;
}
uiEditableCombobox *uiNewEditableCombobox(void)
{
uiEditableCombobox *c;
uiWindowsNewControl(uiEditableCombobox, c);
c->hwnd = uiWindowsEnsureCreateControlHWND(WS_EX_CLIENTEDGE,
L"combobox", L"",
CBS_DROPDOWN | WS_TABSTOP,
hInstance, NULL,
TRUE);
uiWindowsRegisterWM_COMMANDHandler(c->hwnd, onWM_COMMAND, uiControl(c));
uiEditableComboboxOnChanged(c, defaultOnChanged, NULL);
return c;
}
|