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reactos/rosapps/lib/dflat32/menubar.c
Steven Edwards 81345fd691 Still working on making dflat32 a dll. Alot of this will be cleaned up in the 
next few weeks. I'm going through the DFLAT api doc and fixing the export
names and then going to try to build a simple hello dflat application.

svn path=/trunk/; revision=2844
2002-04-14 10:15:06 +00:00

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/* ---------------- menubar.c ------------------ */
#include "dflat32/dflat.h"
static void reset_menubar(DFWINDOW);
static struct {
int x1, x2; /* position in menu bar */
char sc; /* shortcut key value */
} menu[10];
static int mctr;
MBAR *ActiveMenuBar;
static MENU *ActiveMenu;
static DFWINDOW mwnd;
static BOOL Selecting;
static DFWINDOW Cascaders[MAXCASCADES];
static int casc;
static DFWINDOW GetDocFocus(void);
/* ----------- SETFOCUS Message ----------- */
static int SetFocusMsg(DFWINDOW wnd, PARAM p1)
{
int rtn;
rtn = BaseWndProc(MENUBAR, wnd, SETFOCUS, p1, 0);
if (!(int)p1)
DfSendMessage(GetParent(wnd), ADDSTATUS, 0, 0);
return rtn;
}
/* --------- BUILDMENU Message --------- */
static void BuildMenuMsg(DFWINDOW wnd, PARAM p1)
{
int offset = 3;
reset_menubar(wnd);
mctr = 0;
ActiveMenuBar = (MBAR *) p1;
ActiveMenu = ActiveMenuBar->PullDown;
while (ActiveMenu->Title != NULL &&
ActiveMenu->Title != (void*)-1)
{
char *cp;
if (strlen(GetText(wnd)+offset) <
strlen(ActiveMenu->Title)+3)
break;
GetText(wnd) = DFrealloc(GetText(wnd),
strlen(GetText(wnd))+5);
memmove(GetText(wnd) + offset+4, GetText(wnd) + offset,
strlen(GetText(wnd))-offset+1);
CopyCommand(GetText(wnd)+offset,ActiveMenu->Title,FALSE,
wnd->WindowColors [STD_COLOR] [BG]);
menu[mctr].x1 = offset;
offset += strlen(ActiveMenu->Title) + (3+MSPACE);
menu[mctr].x2 = offset-MSPACE;
cp = strchr(ActiveMenu->Title, SHORTCUTCHAR);
if (cp)
menu[mctr].sc = tolower(*(cp+1));
mctr++;
ActiveMenu++;
}
ActiveMenu = ActiveMenuBar->PullDown;
}
/* ---------- PAINT Message ---------- */
static void PaintMsg(DFWINDOW wnd)
{
if (Selecting)
return;
if (wnd == inFocus)
DfSendMessage(GetParent(wnd), ADDSTATUS, 0, 0);
SetStandardColor(wnd);
wputs(wnd, GetText(wnd), 0, 0);
if (ActiveMenuBar == NULL)
return;
if (ActiveMenuBar->ActiveSelection != -1 &&
(wnd == inFocus || mwnd != NULL)) {
char *sel, *cp;
int offset, offset1;
sel = DFmalloc(200);
offset=menu[ActiveMenuBar->ActiveSelection].x1;
offset1=menu[ActiveMenuBar->ActiveSelection].x2;
GetText(wnd)[offset1] = '\0';
SetReverseColor(wnd);
memset(sel, '\0', 200);
strcpy(sel, GetText(wnd)+offset);
cp = strchr(sel, CHANGECOLOR);
if (cp != NULL)
*(cp + 2) = background | 0x80;
wputs(wnd, sel,
offset-ActiveMenuBar->ActiveSelection*4, 0);
GetText(wnd)[offset1] = ' ';
if (mwnd == NULL && wnd == inFocus) {
char *st = ActiveMenu
[ActiveMenuBar->ActiveSelection].StatusText;
if (st != NULL)
DfSendMessage(GetParent(wnd), ADDSTATUS,
(PARAM)st, 0);
}
free(sel);
}
}
/* ------------ KEYBOARD Message ------------- */
static void KeyboardMsg(DFWINDOW wnd, PARAM p1)
{
MENU *mnu;
int sel;
if (mwnd == NULL)
{
/* ----- search for menu bar shortcut keys ---- */
int c = tolower((int)p1);
int a = AltConvert((int)p1);
int j;
for (j = 0; j < mctr; j++) {
if ((inFocus == wnd && menu[j].sc == c) ||
(a && menu[j].sc == a)) {
DfSendMessage(wnd, SETFOCUS, TRUE, 0);
DfSendMessage(wnd, MB_SELECTION, j, 0);
return;
}
}
}
/* -------- search for accelerator keys -------- */
mnu = ActiveMenu;
while (mnu->Title != (void *)-1) {
struct PopDown *pd = mnu->Selections;
if (mnu->PrepMenu)
(*(mnu->PrepMenu))(GetDocFocus(), mnu);
while (pd->SelectionTitle != NULL) {
if (pd->Accelerator == (int) p1) {
if (pd->Attrib & INACTIVE)
beep();
else {
if (pd->Attrib & TOGGLE)
pd->Attrib ^= CHECKED;
DfSendMessage(GetDocFocus(),
SETFOCUS, TRUE, 0);
DfPostMessage(GetParent(wnd),
DFM_COMMAND, pd->ActionId, 0);
}
return;
}
pd++;
}
mnu++;
}
switch ((int)p1)
{
case F1:
if (ActiveMenu == NULL || ActiveMenuBar == NULL)
break;
sel = ActiveMenuBar->ActiveSelection;
if (sel == -1)
{
BaseWndProc(MENUBAR, wnd, KEYBOARD, F1, 0);
return;
}
mnu = ActiveMenu+sel;
if (mwnd == NULL ||
mnu->Selections[0].SelectionTitle == NULL)
{
DisplayHelp(wnd,mnu->Title+1);
return;
}
break;
case '\r':
if (mwnd == NULL &&
ActiveMenuBar->ActiveSelection != -1)
DfSendMessage(wnd, MB_SELECTION,
ActiveMenuBar->ActiveSelection, 0);
break;
case F10:
if (wnd != inFocus && mwnd == NULL) {
DfSendMessage(wnd, SETFOCUS, TRUE, 0);
if ( ActiveMenuBar->ActiveSelection == -1)
ActiveMenuBar->ActiveSelection = 0;
DfSendMessage(wnd, PAINT, 0, 0);
break;
}
/* ------- fall through ------- */
case ESC:
if (inFocus == wnd && mwnd == NULL) {
ActiveMenuBar->ActiveSelection = -1;
DfSendMessage(GetDocFocus(),SETFOCUS,TRUE,0);
DfSendMessage(wnd, PAINT, 0, 0);
}
break;
case FWD:
ActiveMenuBar->ActiveSelection++;
if (ActiveMenuBar->ActiveSelection == mctr)
ActiveMenuBar->ActiveSelection = 0;
if (mwnd != NULL)
DfSendMessage(wnd, MB_SELECTION,
ActiveMenuBar->ActiveSelection, 0);
else
DfSendMessage(wnd, PAINT, 0, 0);
break;
case BS:
if (ActiveMenuBar->ActiveSelection == 0 ||
ActiveMenuBar->ActiveSelection == -1)
ActiveMenuBar->ActiveSelection = mctr;
--ActiveMenuBar->ActiveSelection;
if (mwnd != NULL)
DfSendMessage(wnd, MB_SELECTION,
ActiveMenuBar->ActiveSelection, 0);
else
DfSendMessage(wnd, PAINT, 0, 0);
break;
default:
break;
}
}
/* --------------- LEFT_BUTTON Message ---------- */
static void LeftButtonMsg(DFWINDOW wnd, PARAM p1)
{
int i;
int mx = (int) p1 - GetLeft(wnd);
/* --- compute the selection that the left button hit --- */
for (i = 0; i < mctr; i++)
if (mx >= menu[i].x1-4*i &&
mx <= menu[i].x2-4*i-5)
break;
if (i < mctr)
if (i != ActiveMenuBar->ActiveSelection || mwnd == NULL)
DfSendMessage(wnd, MB_SELECTION, i, 0);
}
/* -------------- MB_SELECTION Message -------------- */
static void SelectionMsg(DFWINDOW wnd, PARAM p1, PARAM p2)
{
int wd, mx, my;
MENU *mnu;
if (!p2)
{
ActiveMenuBar->ActiveSelection = -1;
DfSendMessage(wnd, PAINT, 0, 0);
}
Selecting = TRUE;
mnu = ActiveMenu+(int)p1;
if (mnu->PrepMenu != NULL)
(*(mnu->PrepMenu))(GetDocFocus(), mnu);
wd = MenuWidth(mnu->Selections);
if (p2)
{
int brd = GetRight(wnd);
mx = GetLeft(mwnd) + WindowWidth(mwnd) - 1;
if (mx + wd > brd)
mx = brd - wd;
my = GetTop(mwnd) + mwnd->selection;
}
else
{
int offset = menu[(int)p1].x1 - 4 * (int)p1;
if (mwnd != NULL)
DfSendMessage(mwnd, CLOSE_WINDOW, 0, 0);
ActiveMenuBar->ActiveSelection = (int) p1;
if (offset > WindowWidth(wnd)-wd)
offset = WindowWidth(wnd)-wd;
mx = GetLeft(wnd)+offset;
my = GetTop(wnd)+1;
}
mwnd = DfCreateWindow(POPDOWNMENU, NULL,
mx, my,
MenuHeight(mnu->Selections),
wd,
NULL,
wnd,
NULL,
SHADOW);
if (!p2)
{
Selecting = FALSE;
DfSendMessage(wnd, PAINT, 0, 0);
Selecting = TRUE;
}
if (mnu->Selections[0].SelectionTitle != NULL)
{
DfSendMessage(mwnd, BUILD_SELECTIONS, (PARAM) mnu, 0);
DfSendMessage(mwnd, SETFOCUS, TRUE, 0);
DfSendMessage(mwnd, SHOW_WINDOW, 0, 0);
}
Selecting = FALSE;
}
/* --------- COMMAND Message ---------- */
static void CommandMsg(DFWINDOW wnd, PARAM p1, PARAM p2)
{
if (p1 == ID_HELP)
{
BaseWndProc(MENUBAR, wnd, DFM_COMMAND, p1, p2);
return;
}
if (isCascadedCommand(ActiveMenuBar, (int)p1))
{
/* find the cascaded menu based on command id in p1 */
MENU *mnu = ActiveMenu+mctr;
while (mnu->Title != (void *)-1) {
if (mnu->CascadeId == (int) p1) {
if (casc < MAXCASCADES) {
Cascaders[casc++] = mwnd;
DfSendMessage(wnd, MB_SELECTION,
(PARAM)(mnu-ActiveMenu), TRUE);
}
break;
}
mnu++;
}
}
else {
if (mwnd != NULL)
DfSendMessage(mwnd, CLOSE_WINDOW, 0, 0);
DfSendMessage(GetDocFocus(), SETFOCUS, TRUE, 0);
DfPostMessage(GetParent(wnd), DFM_COMMAND, p1, p2);
}
}
/* --------------- CLOSE_POPDOWN Message --------------- */
static void ClosePopdownMsg(DFWINDOW wnd)
{
if (casc > 0)
DfSendMessage(Cascaders[--casc], CLOSE_WINDOW, 0, 0);
else
{
mwnd = NULL;
ActiveMenuBar->ActiveSelection = -1;
if (!Selecting)
{
DfSendMessage(GetDocFocus(), SETFOCUS, TRUE, 0);
DfSendMessage(wnd, PAINT, 0, 0);
}
}
}
/* ---------------- CLOSE_WINDOW Message --------------- */
static void CloseWindowMsg(DFWINDOW wnd)
{
if (GetText(wnd) != NULL)
{
free(GetText(wnd));
GetText(wnd) = NULL;
}
mctr = 0;
ActiveMenuBar->ActiveSelection = -1;
ActiveMenu = NULL;
ActiveMenuBar = NULL;
}
/* --- Window processing module for MENUBAR window class --- */
int MenuBarProc(DFWINDOW wnd, DFMESSAGE msg, PARAM p1, PARAM p2)
{
int rtn;
switch (msg) {
case CREATE_WINDOW:
reset_menubar(wnd);
break;
case SETFOCUS:
return SetFocusMsg(wnd, p1);
case BUILDMENU:
BuildMenuMsg(wnd, p1);
break;
case PAINT:
if (!isVisible(wnd) || GetText(wnd) == NULL)
break;
PaintMsg(wnd);
return FALSE;
case BORDER:
if (mwnd == NULL)
DfSendMessage(wnd, PAINT, 0, 0);
return TRUE;
case KEYBOARD:
KeyboardMsg(wnd, p1);
return TRUE;
case LEFT_BUTTON:
LeftButtonMsg(wnd, p1);
return TRUE;
case MB_SELECTION:
SelectionMsg(wnd, p1, p2);
break;
case DFM_COMMAND:
CommandMsg(wnd, p1, p2);
return TRUE;
case INSIDE_WINDOW:
return InsideRect(p1, p2, WindowRect(wnd));
case CLOSE_POPDOWN:
ClosePopdownMsg(wnd);
return TRUE;
case CLOSE_WINDOW:
CloseWindowMsg(wnd);
rtn = BaseWndProc(MENUBAR, wnd, msg, p1, p2);
return rtn;
default:
break;
}
return BaseWndProc(MENUBAR, wnd, msg, p1, p2);
}
/* ------------- reset the MENUBAR -------------- */
static void reset_menubar(DFWINDOW wnd)
{
GetText(wnd) = DFrealloc(GetText(wnd), DfGetScreenWidth()+5);
memset(GetText(wnd), ' ', DfGetScreenWidth());
*(GetText(wnd)+WindowWidth(wnd)) = '\0';
}
static DFWINDOW GetDocFocus(void)
{
DFWINDOW wnd = ApplicationWindow;
if (wnd != NULL)
{
wnd = LastWindow(wnd);
while (wnd != NULL &&
(GetClass(wnd) == MENUBAR ||
GetClass(wnd) == STATUSBAR))
wnd = PrevWindow(wnd);
if (wnd != NULL)
{
while (wnd->childfocus != NULL)
wnd = wnd->childfocus;
}
}
return wnd ? wnd : ApplicationWindow;
}
/* EOF */
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