source-engine/utils/mxtk/mxlineedit.cpp
FluorescentCIAAfricanAmerican 3bf9df6b27 1
2020-04-22 12:56:21 -04:00

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3.5 KiB
C++

//
// mxToolKit (c) 1999 by Mete Ciragan
//
// file: mxLineEdit.cpp
// implementation: Win32 API
// last modified: Mar 18 1999, Mete Ciragan
// copyright: The programs and associated files contained in this
// distribution were developed by Mete Ciragan. The programs
// are not in the public domain, but they are freely
// distributable without licensing fees. These programs are
// provided without guarantee or warrantee expressed or
// implied.
//
#include "mxtk/mxLineEdit.h"
#include <windows.h>
#include "mxtk/mxEvent.h"
#include "mxtk/mxWindow.h"
class mxLineEdit_i
{
public:
int dummy;
};
#include "tier0/dbg.h"
typedef LRESULT (CALLBACK * WndProc_t)(HWND hwnd, UINT uMessage, WPARAM wParam, LPARAM lParam);
static WndProc_t s_OldWndProc = 0;
static LRESULT CALLBACK EditWndProc (HWND hwnd, UINT uMessage, WPARAM wParam, LPARAM lParam)
{
int iret = 0;
// This lovely bit of hackery ensures we get return key events
if ( uMessage == WM_CHAR)
{
iret = s_OldWndProc( hwnd, uMessage, wParam, lParam );
// Post the message directly to all windows in the hierarchy until
// someone responds
mxLineEdit *lineEdit = (mxLineEdit *) GetWindowLong (hwnd, GWL_USERDATA);
mxEvent event;
event.event = mxEvent::KeyDown;
event.action = lineEdit->getId();
event.key = (int) wParam;
mxWindow* window = lineEdit->getParent();
while (window)
{
if (window->handleEvent (&event))
break;
window = window->getParent ();
}
}
else
{
if ( uMessage == WM_LBUTTONDOWN )
{
SetFocus( hwnd );
}
iret = s_OldWndProc( hwnd, uMessage, wParam, lParam );
}
return iret;
}
mxLineEdit::mxLineEdit (mxWindow *parent, int x, int y, int w, int h, const char *label, int id, int style)
: mxWidget (parent, x, y, w, h, label)
{
if (!parent)
return;
DWORD dwStyle = WS_VISIBLE | WS_CHILD | ES_AUTOHSCROLL | WS_TABSTOP; // | ES_WANTRETURN | ES_MULTILINE;
HWND hwndParent = (HWND) ((mxWidget *) parent)->getHandle ();
if (style == ReadOnly)
dwStyle |= ES_READONLY;
else if (style == Password)
dwStyle |= ES_PASSWORD;
if (!s_OldWndProc)
{
WNDCLASSEX editClass;
GetClassInfoEx( (HINSTANCE) GetModuleHandle (NULL), "EDIT", &editClass );
s_OldWndProc = editClass.lpfnWndProc;
editClass.cbSize = sizeof(WNDCLASSEX);
editClass.cbClsExtra = 0;
editClass.lpfnWndProc = EditWndProc;
editClass.lpszClassName = "mx_edit";
RegisterClassEx( &editClass );
}
void *handle = (void *) CreateWindowEx (WS_EX_CLIENTEDGE, "mx_edit", label, dwStyle, //WS_VISIBLE | WS_CHILD | ES_AUTOHSCROLL,
x, y, w, h, hwndParent,
(HMENU) id, (HINSTANCE) GetModuleHandle (NULL), NULL);
SendMessage ((HWND) handle, WM_SETFONT, (WPARAM) (HFONT) GetStockObject (ANSI_VAR_FONT), MAKELPARAM (TRUE, 0));
SendMessage ((HWND) getHandle (), EM_LIMITTEXT, (WPARAM) 256, 0L);
SetWindowLong ((HWND) handle, GWL_USERDATA, (LONG) this);
setHandle (handle);
setType (MX_LINEEDIT);
setParent (parent);
setId (id);
}
mxLineEdit::~mxLineEdit ()
{
}
void mxLineEdit::clear()
{
SendMessage( (HWND)getHandle(), WM_SETTEXT, (WPARAM)0, (LPARAM)"" );
}
void mxLineEdit::getText( char *buf, size_t bufsize )
{
buf[ 0 ] = 0;
SendMessage( (HWND) getHandle (), WM_GETTEXT, (WPARAM)bufsize, (LPARAM)buf );
}
void
mxLineEdit::setMaxLength (int max)
{
SendMessage ((HWND) getHandle (), EM_LIMITTEXT, (WPARAM) max, 0L);
}
int
mxLineEdit::getMaxLength () const
{
return (int) SendMessage ((HWND) getHandle (), EM_GETLIMITTEXT, 0, 0L);
}