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reactos/rosapps/dflat32/normal.c
Eric Kohl a12836346f Improved keyboard handling code 
Fixed problems with differnet console sizes
Started function renaming

svn path=/trunk/; revision=1034
2000-03-08 01:49:37 +00:00

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/* ------------- normal.c ------------ */
#include "dflat.h"
#ifdef INCLUDE_MULTI_WINDOWS
static void PaintOverLappers(DFWINDOW wnd);
static void PaintUnderLappers(DFWINDOW wnd);
#endif
static BOOL InsideWindow(DFWINDOW, int, int);
static void TerminateMoveSize(void);
static void SaveBorder(DFRECT);
static void RestoreBorder(DFRECT);
static void GetVideoBuffer(DFWINDOW);
static void PutVideoBuffer(DFWINDOW);
#ifdef INCLUDE_MINIMIZE
static DFRECT PositionIcon(DFWINDOW);
#endif
static void dragborder(DFWINDOW, int, int);
static void sizeborder(DFWINDOW, int, int);
static int px = -1, py = -1;
static int diff;
static struct window dwnd = {DUMMY, NULL, NormalProc,
{-1,-1,-1,-1}};
static PCHAR_INFO Bsave;
static int Bht, Bwd;
BOOL WindowMoving;
BOOL WindowSizing;
/* -------- array of class definitions -------- */
CLASSDEFS classdefs[] = {
#undef ClassDef
#define ClassDef(c,b,p,a) {b,p,a},
#include "classes.h"
};
DFWINDOW HiddenWindow;
/* --------- CREATE_WINDOW Message ---------- */
static void CreateWindowMsg(DFWINDOW wnd)
{
AppendWindow(wnd);
// ClearAttribute(wnd, VSCROLLBAR | HSCROLLBAR);
if (TestAttribute(wnd, SAVESELF) && isVisible(wnd))
GetVideoBuffer(wnd);
}
/* --------- SHOW_WINDOW Message ---------- */
static void ShowWindowMsg(DFWINDOW wnd, PARAM p1, PARAM p2)
{
if (GetParent(wnd) == NULL || isVisible(GetParent(wnd)))
{
DFWINDOW cwnd;
if (TestAttribute(wnd, SAVESELF) && wnd->videosave == NULL)
GetVideoBuffer(wnd);
SetVisible(wnd);
DfSendMessage(wnd, PAINT, 0, TRUE);
DfSendMessage(wnd, BORDER, 0, 0);
/* --- show the children of this window --- */
cwnd = FirstWindow(wnd);
while (cwnd != NULL)
{
if (cwnd->condition != ISCLOSING)
DfSendMessage(cwnd, SHOW_WINDOW, p1, p2);
cwnd = NextWindow(cwnd);
}
}
}
/* --------- HIDE_WINDOW Message ---------- */
static void HideWindowMsg(DFWINDOW wnd)
{
if (isVisible(wnd))
{
ClearVisible(wnd);
/* --- paint what this window covered --- */
if (TestAttribute(wnd, SAVESELF))
PutVideoBuffer(wnd);
#ifdef INCLUDE_MULTI_WINDOWS
else
PaintOverLappers(wnd);
#endif
}
}
/* --------- KEYBOARD Message ---------- */
static BOOL KeyboardMsg(DFWINDOW wnd, PARAM p1, PARAM p2)
{
if (WindowMoving || WindowSizing) {
/* -- move or size a window with keyboard -- */
int x, y;
x=WindowMoving?GetLeft(&dwnd):GetRight(&dwnd);
y=WindowMoving?GetTop(&dwnd):GetBottom(&dwnd);
switch ((int)p1) {
case ESC:
TerminateMoveSize();
return TRUE;
case UP:
if (y)
--y;
break;
case DN:
if (y < DfGetScreenHeight()-1)
y++;
break;
case FWD:
if (x < DfGetScreenWidth()-1)
x++;
break;
case BS:
if (x)
--x;
break;
case '\r':
DfSendMessage(wnd, DFM_BUTTON_RELEASED,x,y);
default:
return TRUE;
}
/* -- use the mouse functions to move/size - */
DfSendMessage(wnd, MOUSE_MOVED, x, y);
return TRUE;
}
switch ((int)p1)
{
case F1:
DfSendMessage(wnd, DFM_COMMAND, ID_HELP, 0);
return TRUE;
case ' ':
if ((int)p2 & ALTKEY)
if (TestAttribute(wnd, HASTITLEBAR))
if (TestAttribute(wnd, CONTROLBOX))
BuildSystemMenu(wnd);
return TRUE;
case CTRL_F4:
if (TestAttribute(wnd, CONTROLBOX))
{
DfSendMessage(wnd, CLOSE_WINDOW, 0, 0);
SkipApplicationControls();
return TRUE;
}
break;
default:
break;
}
return FALSE;
}
/* --------- COMMAND Message ---------- */
static void CommandMsg(DFWINDOW wnd, PARAM p1)
{
switch ((int)p1) {
case ID_HELP:
DisplayHelp(wnd,ClassNames[GetClass(wnd)]);
break;
#ifdef INCLUDE_RESTORE
case ID_SYSRESTORE:
DfSendMessage(wnd, RESTORE, 0, 0);
break;
#endif
case ID_SYSMOVE:
DfSendMessage(wnd, CAPTURE_MOUSE, TRUE,
(PARAM) &dwnd);
DfSendMessage(wnd, CAPTURE_KEYBOARD, TRUE,
(PARAM) &dwnd);
WindowMoving = TRUE;
dragborder(wnd, GetLeft(wnd), GetTop(wnd));
break;
case ID_SYSSIZE:
DfSendMessage(wnd, CAPTURE_MOUSE, TRUE,
(PARAM) &dwnd);
DfSendMessage(wnd, CAPTURE_KEYBOARD, TRUE,
(PARAM) &dwnd);
WindowSizing = TRUE;
dragborder(wnd, GetLeft(wnd), GetTop(wnd));
break;
#ifdef INCLUDE_MINIMIZE
case ID_SYSMINIMIZE:
DfSendMessage(wnd, MINIMIZE, 0, 0);
break;
#endif
#ifdef INCLUDE_MAXIMIZE
case ID_SYSMAXIMIZE:
DfSendMessage(wnd, MAXIMIZE, 0, 0);
break;
#endif
case ID_SYSCLOSE:
DfSendMessage(wnd, CLOSE_WINDOW, 0, 0);
SkipApplicationControls();
break;
default:
break;
}
}
/* --------- SETFOCUS Message ---------- */
static void SetFocusMsg(DFWINDOW wnd, PARAM p1)
{
DFRECT rc = {0,0,0,0};
if (p1 && wnd != NULL && inFocus != wnd)
{
DFWINDOW this, thispar;
DFWINDOW that = NULL, thatpar = NULL;
DFWINDOW cwnd = wnd, fwnd = GetParent(wnd);
/* ---- post focus in ancestors ---- */
while (fwnd != NULL)
{
fwnd->childfocus = cwnd;
cwnd = fwnd;
fwnd = GetParent(fwnd);
}
/* ---- de-post focus in self and children ---- */
fwnd = wnd;
while (fwnd != NULL)
{
cwnd = fwnd->childfocus;
fwnd->childfocus = NULL;
fwnd = cwnd;
}
this = wnd;
that = thatpar = inFocus;
/* ---- find common ancestor of prev focus and this window --- */
while (thatpar != NULL)
{
thispar = wnd;
while (thispar != NULL)
{
if (this == CaptureMouse || this == CaptureKeyboard)
{
/* ---- don't repaint if this window has capture ---- */
that = thatpar = NULL;
break;
}
if (thispar == thatpar)
{
/* ---- don't repaint if SAVESELF window had focus ---- */
if (this != that && TestAttribute(that, SAVESELF))
that = thatpar = NULL;
break;
}
this = thispar;
thispar = GetParent(thispar);
}
if (thispar != NULL)
break;
that = thatpar;
thatpar = GetParent(thatpar);
}
if (inFocus != NULL)
DfSendMessage(inFocus, SETFOCUS, FALSE, 0);
inFocus = wnd;
if (that != NULL && isVisible(wnd))
{
rc = subRectangle(WindowRect(that), WindowRect(this));
if (!ValidRect(rc))
{
if (ApplicationWindow != NULL)
{
DFWINDOW fwnd = FirstWindow(ApplicationWindow);
while (fwnd != NULL)
{
if (!isAncestor(wnd, fwnd))
{
rc = subRectangle(WindowRect(wnd),WindowRect(fwnd));
if (ValidRect(rc))
break;
}
fwnd = NextWindow(fwnd);
}
}
}
}
if (that != NULL && !ValidRect(rc) && isVisible(wnd))
{
DfSendMessage(wnd, BORDER, 0, 0);
this = NULL;
}
ReFocus(wnd);
if (this != NULL)
DfSendMessage(this, SHOW_WINDOW, 0, 0);
}
else if (!p1 && inFocus == wnd)
{
/* clearing focus */
inFocus = NULL;
DfSendMessage(wnd, BORDER, 0, 0);
}
}
/* --------- DOUBLE_CLICK Message ---------- */
static void DoubleClickMsg(DFWINDOW wnd, PARAM p1, PARAM p2)
{
int mx = (int) p1 - GetLeft(wnd);
int my = (int) p2 - GetTop(wnd);
if (!WindowSizing && !WindowMoving) {
if (HitControlBox(wnd, mx, my)) {
DfPostMessage(wnd, CLOSE_WINDOW, 0, 0);
SkipApplicationControls();
}
}
}
/* --------- LEFT_BUTTON Message ---------- */
static void LeftButtonMsg(DFWINDOW wnd, PARAM p1, PARAM p2)
{
int mx = (int) p1 - GetLeft(wnd);
int my = (int) p2 - GetTop(wnd);
if (WindowSizing || WindowMoving)
return;
if (HitControlBox(wnd, mx, my)) {
BuildSystemMenu(wnd);
return;
}
if (my == 0 && mx > -1 && mx < WindowWidth(wnd)) {
/* ---------- hit the top border -------- */
if (TestAttribute(wnd, MINMAXBOX) &&
TestAttribute(wnd, HASTITLEBAR)) {
if (mx == WindowWidth(wnd)-2) {
if (wnd->condition != ISRESTORED)
/* --- hit the restore box --- */
DfSendMessage(wnd, RESTORE, 0, 0);
#ifdef INCLUDE_MAXIMIZE
else
/* --- hit the maximize box --- */
DfSendMessage(wnd, MAXIMIZE, 0, 0);
#endif
return;
}
#ifdef INCLUDE_MINIMIZE
if (mx == WindowWidth(wnd)-3) {
/* --- hit the minimize box --- */
if (wnd->condition != ISMINIMIZED)
DfSendMessage(wnd, MINIMIZE, 0, 0);
return;
}
#endif
}
#ifdef INCLUDE_MAXIMIZE
if (wnd->condition == ISMAXIMIZED)
return;
#endif
if (TestAttribute(wnd, MOVEABLE)) {
WindowMoving = TRUE;
px = mx;
py = my;
diff = (int) mx;
DfSendMessage(wnd, CAPTURE_MOUSE, TRUE,
(PARAM) &dwnd);
dragborder(wnd, GetLeft(wnd), GetTop(wnd));
}
return;
}
if (mx == WindowWidth(wnd)-1 &&
my == WindowHeight(wnd)-1) {
/* ------- hit the resize corner ------- */
#ifdef INCLUDE_MINIMIZE
if (wnd->condition == ISMINIMIZED)
return;
#endif
if (!TestAttribute(wnd, SIZEABLE))
return;
#ifdef INCLUDE_MAXIMIZE
if (wnd->condition == ISMAXIMIZED) {
if (GetParent(wnd) == NULL)
return;
if (TestAttribute(GetParent(wnd),HASBORDER))
return;
/* ----- resizing a maximized window over a
borderless parent ----- */
wnd = GetParent(wnd);
}
#endif
WindowSizing = TRUE;
DfSendMessage(wnd, CAPTURE_MOUSE,
TRUE, (PARAM) &dwnd);
dragborder(wnd, GetLeft(wnd), GetTop(wnd));
}
}
/* --------- MOUSE_MOVED Message ---------- */
static BOOL MouseMovedMsg(DFWINDOW wnd, PARAM p1, PARAM p2)
{
if (WindowMoving) {
int leftmost = 0, topmost = 0,
bottommost = DfGetScreenHeight()-2,
rightmost = DfGetScreenWidth()-2;
int x = (int) p1 - diff;
int y = (int) p2;
if (GetParent(wnd) != NULL &&
!TestAttribute(wnd, NOCLIP)) {
DFWINDOW wnd1 = GetParent(wnd);
topmost = GetClientTop(wnd1);
leftmost = GetClientLeft(wnd1);
bottommost = GetClientBottom(wnd1);
rightmost = GetClientRight(wnd1);
}
if (x < leftmost || x > rightmost ||
y < topmost || y > bottommost) {
x = max(x, leftmost);
x = min(x, rightmost);
y = max(y, topmost);
y = min(y, bottommost);
}
if (x != px || y != py) {
px = x;
py = y;
dragborder(wnd, x, y);
}
return TRUE;
}
if (WindowSizing) {
sizeborder(wnd, (int) p1, (int) p2);
return TRUE;
}
return FALSE;
}
#ifdef INCLUDE_MAXIMIZE
/* --------- MAXIMIZE Message ---------- */
static void MaximizeMsg(DFWINDOW wnd)
{
DFRECT rc = {0, 0, 0, 0};
DFRECT holdrc;
holdrc = wnd->RestoredRC;
rc.rt = DfGetScreenWidth()-1;
rc.bt = DfGetScreenHeight()-1;
if (GetParent(wnd))
rc = ClientRect(GetParent(wnd));
wnd->oldcondition = wnd->condition;
wnd->condition = ISMAXIMIZED;
DfSendMessage(wnd, DFM_HIDE_WINDOW, 0, 0);
DfSendMessage(wnd, MOVE,
RectLeft(rc), RectTop(rc));
DfSendMessage(wnd, DFM_SIZE,
RectRight(rc), RectBottom(rc));
if (wnd->restored_attrib == 0)
wnd->restored_attrib = wnd->attrib;
ClearAttribute(wnd, SHADOW);
DfSendMessage(wnd, SHOW_WINDOW, 0, 0);
wnd->RestoredRC = holdrc;
}
#endif
#ifdef INCLUDE_MINIMIZE
/* --------- MINIMIZE Message ---------- */
static void MinimizeMsg(DFWINDOW wnd)
{
DFRECT rc;
DFRECT holdrc;
holdrc = wnd->RestoredRC;
rc = PositionIcon(wnd);
wnd->oldcondition = wnd->condition;
wnd->condition = ISMINIMIZED;
DfSendMessage(wnd, DFM_HIDE_WINDOW, 0, 0);
DfSendMessage(wnd, MOVE,
RectLeft(rc), RectTop(rc));
DfSendMessage(wnd, DFM_SIZE,
RectRight(rc), RectBottom(rc));
if (wnd == inFocus)
SetNextFocus();
if (wnd->restored_attrib == 0)
wnd->restored_attrib = wnd->attrib;
ClearAttribute(wnd,
SHADOW | SIZEABLE | HASMENUBAR |
VSCROLLBAR | HSCROLLBAR);
DfSendMessage(wnd, SHOW_WINDOW, 0, 0);
wnd->RestoredRC = holdrc;
}
#endif
#ifdef INCLUDE_RESTORE
/* --------- RESTORE Message ---------- */
static void RestoreMsg(DFWINDOW wnd)
{
DFRECT holdrc;
holdrc = wnd->RestoredRC;
wnd->oldcondition = wnd->condition;
wnd->condition = ISRESTORED;
DfSendMessage(wnd, DFM_HIDE_WINDOW, 0, 0);
wnd->attrib = wnd->restored_attrib;
wnd->restored_attrib = 0;
DfSendMessage(wnd, MOVE, wnd->RestoredRC.lf,
wnd->RestoredRC.tp);
wnd->RestoredRC = holdrc;
DfSendMessage(wnd, DFM_SIZE, wnd->RestoredRC.rt,
wnd->RestoredRC.bt);
if (wnd != inFocus)
DfSendMessage(wnd, SETFOCUS, TRUE, 0);
else
DfSendMessage(wnd, SHOW_WINDOW, 0, 0);
}
#endif
/* --------- MOVE Message ---------- */
static void MoveMsg(DFWINDOW wnd, PARAM p1, PARAM p2)
{
DFWINDOW cwnd;
BOOL wasVisible = isVisible(wnd);
int xdif = (int) p1 - wnd->rc.lf;
int ydif = (int) p2 - wnd->rc.tp;
if (xdif == 0 && ydif == 0)
return;
if (wasVisible)
DfSendMessage(wnd, DFM_HIDE_WINDOW, 0, 0);
wnd->rc.lf = (int) p1;
wnd->rc.tp = (int) p2;
wnd->rc.rt = GetLeft(wnd)+WindowWidth(wnd)-1;
wnd->rc.bt = GetTop(wnd)+WindowHeight(wnd)-1;
if (wnd->condition == ISRESTORED)
wnd->RestoredRC = wnd->rc;
cwnd = FirstWindow(wnd);
while (cwnd != NULL) {
DfSendMessage(cwnd, MOVE, cwnd->rc.lf+xdif, cwnd->rc.tp+ydif);
cwnd = NextWindow(cwnd);
}
if (wasVisible)
DfSendMessage(wnd, SHOW_WINDOW, 0, 0);
}
/* --------- SIZE Message ---------- */
static void SizeMsg(DFWINDOW wnd, PARAM p1, PARAM p2)
{
BOOL wasVisible = isVisible(wnd);
DFWINDOW cwnd;
DFRECT rc;
int xdif = (int) p1 - wnd->rc.rt;
int ydif = (int) p2 - wnd->rc.bt;
if (xdif == 0 && ydif == 0)
return;
if (wasVisible)
DfSendMessage(wnd, DFM_HIDE_WINDOW, 0, 0);
wnd->rc.rt = (int) p1;
wnd->rc.bt = (int) p2;
wnd->ht = GetBottom(wnd)-GetTop(wnd)+1;
wnd->wd = GetRight(wnd)-GetLeft(wnd)+1;
if (wnd->condition == ISRESTORED)
wnd->RestoredRC = WindowRect(wnd);
#ifdef INCLUDE_MAXIMIZE
rc = ClientRect(wnd);
cwnd = FirstWindow(wnd);
while (cwnd != NULL) {
if (cwnd->condition == ISMAXIMIZED)
DfSendMessage(cwnd, DFM_SIZE, RectRight(rc), RectBottom(rc));
cwnd = NextWindow(cwnd);
}
#endif
if (wasVisible)
DfSendMessage(wnd, SHOW_WINDOW, 0, 0);
}
/* --------- CLOSE_WINDOW Message ---------- */
static void CloseWindowMsg(DFWINDOW wnd)
{
DFWINDOW cwnd;
wnd->condition = ISCLOSING;
if (wnd->PrevMouse != NULL)
DfSendMessage(wnd, RELEASE_MOUSE, 0, 0);
if (wnd->PrevKeyboard != NULL)
DfSendMessage(wnd, RELEASE_KEYBOARD, 0, 0);
/* ----------- hide this window ------------ */
DfSendMessage(wnd, DFM_HIDE_WINDOW, 0, 0);
/* --- close the children of this window --- */
cwnd = LastWindow(wnd);
while (cwnd != NULL) {
if (inFocus == cwnd)
inFocus = wnd;
DfSendMessage(cwnd,CLOSE_WINDOW,0,0);
cwnd = LastWindow(wnd);
}
/* --- change focus if this window had it -- */
if (wnd == inFocus)
SetPrevFocus();
/* -- free memory allocated to this window - */
if (wnd->title != NULL)
free(wnd->title);
if (wnd->videosave != NULL)
free(wnd->videosave);
/* -- remove window from parent's list of children -- */
RemoveWindow(wnd);
if (wnd == inFocus)
inFocus = NULL;
free(wnd);
}
/* ---- Window-processing module for NORMAL window class ---- */
int NormalProc(DFWINDOW wnd, DFMESSAGE msg, PARAM p1, PARAM p2)
{
switch (msg) {
case CREATE_WINDOW:
CreateWindowMsg(wnd);
break;
case SHOW_WINDOW:
ShowWindowMsg(wnd, p1, p2);
break;
case DFM_HIDE_WINDOW:
HideWindowMsg(wnd);
break;
case DISPLAY_HELP:
DisplayHelp(wnd, (char *)p1);
break;
case INSIDE_WINDOW:
return InsideWindow(wnd, (int) p1, (int) p2);
case KEYBOARD:
if (KeyboardMsg(wnd, p1, p2))
return TRUE;
/* ------- fall through ------- */
case ADDSTATUS:
case SHIFT_CHANGED:
if (GetParent(wnd) != NULL)
DfPostMessage(GetParent(wnd), msg, p1, p2);
break;
case PAINT:
if (isVisible(wnd))
ClearWindow(wnd, (DFRECT *)p1, ' ');
break;
case BORDER:
if (isVisible(wnd))
{
if (TestAttribute(wnd, HASBORDER))
RepaintBorder(wnd, (DFRECT *)p1);
else if (TestAttribute(wnd, HASTITLEBAR))
DisplayTitle(wnd, (DFRECT *)p1);
}
break;
case DFM_COMMAND:
CommandMsg(wnd, p1);
break;
case SETFOCUS:
SetFocusMsg(wnd, p1);
break;
case DFM_DOUBLE_CLICK:
DoubleClickMsg(wnd, p1, p2);
break;
case LEFT_BUTTON:
LeftButtonMsg(wnd, p1, p2);
break;
case MOUSE_MOVED:
if (MouseMovedMsg(wnd, p1, p2))
return TRUE;
break;
case DFM_BUTTON_RELEASED:
if (WindowMoving || WindowSizing)
{
if (WindowMoving)
DfPostMessage(wnd,MOVE,dwnd.rc.lf,dwnd.rc.tp);
else
DfPostMessage(wnd, DFM_SIZE,dwnd.rc.rt,dwnd.rc.bt);
TerminateMoveSize();
}
break;
#ifdef INCLUDE_MAXIMIZE
case MAXIMIZE:
if (wnd->condition != ISMAXIMIZED)
MaximizeMsg(wnd);
break;
#endif
#ifdef INCLUDE_MINIMIZE
case MINIMIZE:
if (wnd->condition != ISMINIMIZED)
MinimizeMsg(wnd);
break;
#endif
#ifdef INCLUDE_RESTORE
case RESTORE:
if (wnd->condition != ISRESTORED) {
#ifdef INCLUDE_MAXIMIZE
if (wnd->oldcondition == ISMAXIMIZED)
DfSendMessage(wnd, MAXIMIZE, 0, 0);
else
#endif
RestoreMsg(wnd);
}
break;
#endif
case MOVE:
MoveMsg(wnd, p1, p2);
break;
case DFM_SIZE: {
SizeMsg(wnd, p1, p2);
break;
}
case CLOSE_WINDOW:
CloseWindowMsg(wnd);
break;
default:
break;
}
return TRUE;
}
#ifdef INCLUDE_MINIMIZE
/* ---- compute lower right icon space in a rectangle ---- */
static DFRECT LowerRight(DFRECT prc)
{
DFRECT rc;
RectLeft(rc) = RectRight(prc) - ICONWIDTH;
RectTop(rc) = RectBottom(prc) - ICONHEIGHT;
RectRight(rc) = RectLeft(rc)+ICONWIDTH-1;
RectBottom(rc) = RectTop(rc)+ICONHEIGHT-1;
return rc;
}
/* ----- compute a position for a minimized window icon ---- */
static DFRECT PositionIcon(DFWINDOW wnd)
{
DFWINDOW pwnd = GetParent(wnd);
DFRECT rc;
RectLeft(rc) = DfGetScreenWidth()-ICONWIDTH;
RectTop(rc) = DfGetScreenHeight()-ICONHEIGHT;
RectRight(rc) = DfGetScreenWidth()-1;
RectBottom(rc) = DfGetScreenHeight()-1;
if (pwnd != NULL) {
DFRECT prc = WindowRect(pwnd);
DFWINDOW cwnd = FirstWindow(pwnd);
rc = LowerRight(prc);
/* - search for icon available location - */
while (cwnd != NULL) {
if (cwnd->condition == ISMINIMIZED) {
DFRECT rc1;
rc1 = WindowRect(cwnd);
if (RectLeft(rc1) == RectLeft(rc) &&
RectTop(rc1) == RectTop(rc)) {
RectLeft(rc) -= ICONWIDTH;
RectRight(rc) -= ICONWIDTH;
if (RectLeft(rc) < RectLeft(prc)+1) {
RectLeft(rc) =
RectRight(prc)-ICONWIDTH;
RectRight(rc) =
RectLeft(rc)+ICONWIDTH-1;
RectTop(rc) -= ICONHEIGHT;
RectBottom(rc) -= ICONHEIGHT;
if (RectTop(rc) < RectTop(prc)+1)
return LowerRight(prc);
}
break;
}
}
cwnd = NextWindow(cwnd);
}
}
return rc;
}
#endif
/* ----- terminate the move or size operation ----- */
static void TerminateMoveSize(void)
{
px = py = -1;
diff = 0;
DfSendMessage(&dwnd, RELEASE_MOUSE, TRUE, 0);
DfSendMessage(&dwnd, RELEASE_KEYBOARD, TRUE, 0);
RestoreBorder(dwnd.rc);
WindowMoving = WindowSizing = FALSE;
}
/* ---- build a dummy window border for moving or sizing --- */
static void dragborder(DFWINDOW wnd, int x, int y)
{
RestoreBorder(dwnd.rc);
/* ------- build the dummy window -------- */
dwnd.rc.lf = x;
dwnd.rc.tp = y;
dwnd.rc.rt = dwnd.rc.lf+WindowWidth(wnd)-1;
dwnd.rc.bt = dwnd.rc.tp+WindowHeight(wnd)-1;
dwnd.ht = WindowHeight(wnd);
dwnd.wd = WindowWidth(wnd);
dwnd.parent = GetParent(wnd);
dwnd.attrib = VISIBLE | HASBORDER | NOCLIP;
InitWindowColors(&dwnd);
SaveBorder(dwnd.rc);
RepaintBorder(&dwnd, NULL);
}
/* ---- write the dummy window border for sizing ---- */
static void sizeborder(DFWINDOW wnd, int rt, int bt)
{
int leftmost = GetLeft(wnd)+10;
int topmost = GetTop(wnd)+3;
int bottommost = DfGetScreenHeight()-1;
int rightmost = DfGetScreenWidth()-1;
if (GetParent(wnd)) {
bottommost = min(bottommost,
GetClientBottom(GetParent(wnd)));
rightmost = min(rightmost,
GetClientRight(GetParent(wnd)));
}
rt = min(rt, rightmost);
bt = min(bt, bottommost);
rt = max(rt, leftmost);
bt = max(bt, topmost);
if (rt != px || bt != py)
RestoreBorder(dwnd.rc);
/* ------- change the dummy window -------- */
dwnd.ht = bt-dwnd.rc.tp+1;
dwnd.wd = rt-dwnd.rc.lf+1;
dwnd.rc.rt = rt;
dwnd.rc.bt = bt;
if (rt != px || bt != py) {
px = rt;
py = bt;
SaveBorder(dwnd.rc);
RepaintBorder(&dwnd, NULL);
}
}
#ifdef INCLUDE_MULTI_WINDOWS
/* ----- adjust a rectangle to include the shadow ----- */
static DFRECT adjShadow(DFWINDOW wnd)
{
DFRECT rc;
rc = wnd->rc;
if (TestAttribute(wnd, SHADOW)) {
if (RectRight(rc) < DfGetScreenWidth()-1)
RectRight(rc)++;
if (RectBottom(rc) < DfGetScreenHeight()-1)
RectBottom(rc)++;
}
return rc;
}
/* --- repaint a rectangular subsection of a window --- */
static void PaintOverLap(DFWINDOW wnd, DFRECT rc)
{
if (isVisible(wnd)) {
int isBorder, isTitle, isData;
isBorder = isTitle = FALSE;
isData = TRUE;
if (TestAttribute(wnd, HASBORDER)) {
isBorder = RectLeft(rc) == 0 &&
RectTop(rc) < WindowHeight(wnd);
isBorder |= RectLeft(rc) < WindowWidth(wnd) &&
RectRight(rc) >= WindowWidth(wnd)-1 &&
RectTop(rc) < WindowHeight(wnd);
isBorder |= RectTop(rc) == 0 &&
RectLeft(rc) < WindowWidth(wnd);
isBorder |= RectTop(rc) < WindowHeight(wnd) &&
RectBottom(rc) >= WindowHeight(wnd)-1 &&
RectLeft(rc) < WindowWidth(wnd);
}
else if (TestAttribute(wnd, HASTITLEBAR))
isTitle = RectTop(rc) == 0 &&
RectRight(rc) > 0 &&
RectLeft(rc)<WindowWidth(wnd)-BorderAdj(wnd);
if (RectLeft(rc) >= WindowWidth(wnd)-BorderAdj(wnd))
isData = FALSE;
if (RectTop(rc) >= WindowHeight(wnd)-BottomBorderAdj(wnd))
isData = FALSE;
if (TestAttribute(wnd, HASBORDER)) {
if (RectRight(rc) == 0)
isData = FALSE;
if (RectBottom(rc) == 0)
isData = FALSE;
}
if (TestAttribute(wnd, SHADOW))
isBorder |= RectRight(rc) == WindowWidth(wnd) ||
RectBottom(rc) == WindowHeight(wnd);
if (isData)
DfSendMessage(wnd, PAINT, (PARAM) &rc, TRUE);
if (isBorder)
DfSendMessage(wnd, BORDER, (PARAM) &rc, 0);
else if (isTitle)
DisplayTitle(wnd, &rc);
}
}
/* ------ paint the part of a window that is overlapped
by another window that is being hidden ------- */
static void PaintOver(DFWINDOW wnd)
{
DFRECT wrc, rc;
wrc = adjShadow(HiddenWindow);
rc = adjShadow(wnd);
rc = subRectangle(rc, wrc);
if (ValidRect(rc))
PaintOverLap(wnd, RelativeWindowRect(wnd, rc));
}
/* --- paint the overlapped parts of all children --- */
static void PaintOverChildren(DFWINDOW pwnd)
{
DFWINDOW cwnd = FirstWindow(pwnd);
while (cwnd != NULL) {
if (cwnd != HiddenWindow) {
PaintOver(cwnd);
PaintOverChildren(cwnd);
}
cwnd = NextWindow(cwnd);
}
}
/* -- recursive overlapping paint of parents -- */
static void PaintOverParents(DFWINDOW wnd)
{
DFWINDOW pwnd = GetParent(wnd);
if (pwnd != NULL) {
PaintOverParents(pwnd);
PaintOver(pwnd);
PaintOverChildren(pwnd);
}
}
/* - paint the parts of all windows that a window is over - */
static void PaintOverLappers(DFWINDOW wnd)
{
HiddenWindow = wnd;
PaintOverParents(wnd);
}
/* --- paint those parts of a window that are overlapped --- */
static void PaintUnderLappers(DFWINDOW wnd)
{
DFWINDOW hwnd = NextWindow(wnd);
while (hwnd != NULL) {
/* ------- test only at document window level ------ */
DFWINDOW pwnd = GetParent(hwnd);
/* if (pwnd == NULL || GetClass(pwnd) == APPLICATION) */ {
/* ---- don't bother testing self ----- */
if (isVisible(hwnd) && hwnd != wnd) {
/* --- see if other window is descendent --- */
while (pwnd != NULL) {
if (pwnd == wnd)
break;
pwnd = GetParent(pwnd);
}
/* ----- don't test descendent overlaps ----- */
if (pwnd == NULL) {
/* -- see if other window is ancestor --- */
pwnd = GetParent(wnd);
while (pwnd != NULL) {
if (pwnd == hwnd)
break;
pwnd = GetParent(pwnd);
}
/* --- don't test ancestor overlaps --- */
if (pwnd == NULL) {
HiddenWindow = GetAncestor(hwnd);
ClearVisible(HiddenWindow);
PaintOver(wnd);
SetVisible(HiddenWindow);
}
}
}
}
hwnd = NextWindow(hwnd);
}
/* --------- repaint all children of this window
the same way ----------- */
hwnd = FirstWindow(wnd);
while (hwnd != NULL) {
PaintUnderLappers(hwnd);
hwnd = NextWindow(hwnd);
}
}
#endif /* #ifdef INCLUDE_MULTI_WINDOWS */
/* --- save video area to be used by dummy window border --- */
static void SaveBorder(DFRECT rc)
{
Bht = RectBottom(rc) - RectTop(rc) + 1;
Bwd = RectRight(rc) - RectLeft(rc) + 1;
Bsave = DFrealloc(Bsave, Bht * Bwd * sizeof(CHAR_INFO));
GetVideo(rc,Bsave);
}
/* ---- restore video area used by dummy window border ---- */
static void RestoreBorder(DFRECT rc)
{
if (Bsave != NULL)
{
StoreVideo(rc, Bsave);
free(Bsave);
Bsave = NULL;
}
}
/* ----- test if screen coordinates are in a window ---- */
static BOOL InsideWindow(DFWINDOW wnd, int x, int y)
{
DFRECT rc;
rc = WindowRect(wnd);
if (!TestAttribute(wnd, NOCLIP))
{
DFWINDOW pwnd = GetParent(wnd);
while (pwnd != NULL)
{
rc = subRectangle(rc, ClientRect(pwnd));
pwnd = GetParent(pwnd);
}
}
return InsideRect(x, y, rc);
}
BOOL isDerivedFrom(DFWINDOW wnd, DFCLASS class)
{
DFCLASS tclass = GetClass(wnd);
while (tclass != -1) {
if (tclass == class)
return TRUE;
tclass = (classdefs[tclass].base);
}
return FALSE;
}
/* -- find the oldest document window ancestor of a window -- */
DFWINDOW GetAncestor(DFWINDOW wnd)
{
if (wnd != NULL) {
while (GetParent(wnd) != NULL) {
if (GetClass(GetParent(wnd)) == APPLICATION)
break;
wnd = GetParent(wnd);
}
}
return wnd;
}
BOOL isVisible(DFWINDOW wnd)
{
while (wnd != NULL) {
if (isHidden(wnd))
return FALSE;
wnd = GetParent(wnd);
}
return TRUE;
}
/* -- adjust a window's rectangle to clip it to its parent - */
static DFRECT ClipRect(DFWINDOW wnd)
{
DFRECT rc;
rc = WindowRect(wnd);
if (TestAttribute(wnd, SHADOW)) {
RectBottom(rc)++;
RectRight(rc)++;
}
return ClipRectangle(wnd, rc);
}
/* -- get the video memory that is to be used by a window -- */
static void GetVideoBuffer(DFWINDOW wnd)
{
DFRECT rc;
int ht;
int wd;
rc = ClipRect(wnd);
ht = RectBottom(rc) - RectTop(rc) + 1;
wd = RectRight(rc) - RectLeft(rc) + 1;
wnd->videosave = DFrealloc(wnd->videosave, (ht * wd * sizeof(CHAR_INFO)));
GetVideo(rc, wnd->videosave);
}
/* -- put the video memory that is used by a window -- */
static void PutVideoBuffer(DFWINDOW wnd)
{
if (wnd->videosave != NULL)
{
DFRECT rc;
rc = ClipRect(wnd);
StoreVideo(rc, wnd->videosave);
free(wnd->videosave);
wnd->videosave = NULL;
}
}
/* ------- return TRUE if awnd is an ancestor of wnd ------- */
BOOL isAncestor(DFWINDOW wnd, DFWINDOW awnd)
{
while (wnd != NULL) {
if (wnd == awnd)
return TRUE;
wnd = GetParent(wnd);
}
return FALSE;
}
/* EOF */
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