/*
* Create a new empty region.
*/
static HRGN
REGION_CreateRegion(void)
{
MWRGNOBJ *obj;
obj = GdItemNew(MWRGNOBJ);
if(!obj)
return NULL;
obj->hdr.type = OBJ_REGION;
obj->hdr.stockobj = FALSE;
if(!(obj->rgn = GdAllocRegion())) {
GdItemFree(obj);
return NULL;
}
return (HRGN)obj;
}
/*
* Prepare to do drawing in a window or pixmap using the specified
* graphics context. Returns the drawable pointer if successful,
* and the type of drawing id that was supplied. Returns the special value
* GR_DRAW_TYPE_NONE if an error is generated, or if drawing is useless.
*/
GR_DRAW_TYPE GsPrepareDrawing(GR_DRAW_ID id, GR_GC_ID gcid, GR_DRAWABLE **retdp)
{
GR_WINDOW *wp; /* found window */
GR_PIXMAP *pp; /* found pixmap */
GR_GC *gcp; /* found graphics context */
GR_FONT *fontp;
GR_REGION *regionp; /* user clipping region */
MWCLIPREGION *reg;
PMWFONT pf;
*retdp = NULL;
gcp = GsFindGC(gcid);
if (gcp == NULL)
return GR_DRAW_TYPE_NONE;
/*
* If the graphics context is not the current one, then
* make it the current one and remember to update it.
*/
if (gcp != curgcp) {
curgcp = gcp;
gcp->changed = GR_TRUE;
}
/*
* Look for window or pixmap id
*/
pp = NULL;
wp = GsFindWindow(id);
if (wp == NULL) {
pp = GsFindPixmap(id);
if (pp == NULL)
return GR_DRAW_TYPE_NONE;
#if DYNAMICREGIONS
reg = GdAllocRectRegion(0, 0, pp->psd->xvirtres,
pp->psd->yvirtres);
/* intersect with user region if any*/
if (gcp->regionid) {
regionp = GsFindRegion(gcp->regionid);
if (regionp)
GdIntersectRegion(reg, reg, regionp->rgn);
}
GdSetClipRegion(pp->psd, reg);
#else
{
MWCLIPRECT cliprect;
/* FIXME: setup pixmap clipping, different from windows*/
cliprect.x = 0;
cliprect.y = 0;
cliprect.width = pp->psd->xvirtres;
cliprect.height = pp->psd->yvirtres;
GdSetClipRects(pp->psd, 1, &cliprect);
}
#endif
/* reset clip cache for next window draw*/
clipwp = NULL;
} else {
if (!wp->output) {
GsError(GR_ERROR_INPUT_ONLY_WINDOW, id);
return GR_DRAW_TYPE_NONE;
}
if (wp->unmapcount)
return GR_DRAW_TYPE_NONE;
/*
* If the window is not the currently clipped one,
* then make it the current one and define its clip rectangles.
*/
if (wp != clipwp || gcp->changed) {
/* find user region for intersect*/
if (gcp->regionid)
regionp = GsFindRegion(gcp->regionid);
else regionp = NULL;
/*
* Special handling if user region is not at offset 0,0
*/
if (regionp && (gcp->xoff || gcp->yoff)) {
MWCLIPREGION *local = GdAllocRegion();
GdCopyRegion(local, regionp->rgn);
GdOffsetRegion(local, gcp->xoff, gcp->yoff);
GsSetClipWindow(wp, local,
gcp->mode & ~GR_MODE_DRAWMASK);
GdDestroyRegion(local);
} else {
GsSetClipWindow(wp, regionp? regionp->rgn: NULL,
gcp->mode & ~GR_MODE_DRAWMASK);
}
}
}
/*
* If the graphics context has been changed, then tell the
* device driver about it.
*/
if (gcp->changed) {
GdSetForeground(GdFindColor(gcp->foreground));
GdSetBackground(GdFindColor(gcp->background));
GdSetMode(gcp->mode & GR_MODE_DRAWMASK);
GdSetUseBackground(gcp->usebackground);
fontp = GsFindFont(gcp->fontid);
pf = fontp? fontp->pfont: stdfont;
GdSetFont(pf);
gcp->changed = GR_FALSE;
}
*retdp = wp? (GR_DRAWABLE *)wp: (GR_DRAWABLE *)pp;
return wp? GR_DRAW_TYPE_WINDOW: GR_DRAW_TYPE_PIXMAP;
}
/*
* Set the clip rectangles for a window taking into account other
* windows that may be obscuring it. The windows that may be obscuring
* this one are the siblings of each direct ancestor which are higher
* in priority than those ancestors. Also, each parent limits the visible
* area of the window.
*/
void
MwSetClipWindow(HDC hdc)
{
HWND wp = hdc->hwnd;
HWND pwp; /* parent window */
HWND sibwp; /* sibling windows */
MWCOORD diff; /* difference in coordinates */
PRECT prc; /* client or window rectangle*/
MWCLIPREGION *vis, *r;
MWCOORD x, y, width, height;
/*
* Start with the rectangle for the complete window.
* We will then cut pieces out of it as needed.
*/
prc = MwIsClientDC(hdc)? &wp->clirect: &wp->winrect;
x = prc->left;
y = prc->top;
width = prc->right - prc->left;
height = prc->bottom - prc->top;
/*
* First walk upwards through all parent windows,
* and restrict the visible part of this window to the part
* that shows through all of those parent windows client areas.
*/
pwp = wp;
while (pwp != rootwp) {
pwp = pwp->parent;
diff = pwp->clirect.left - x;
if (diff > 0) {
width -= diff;
x = pwp->clirect.left;
}
diff = pwp->clirect.right - (x + width);
if (diff < 0)
width += diff;
diff = pwp->clirect.top - y;
if (diff > 0) {
height -= diff;
y = pwp->clirect.top;
}
diff = pwp->clirect.bottom - (y + height);
if (diff < 0)
height += diff;
}
/*
* If the window is completely clipped out of view, then
* set the clipping region to indicate that.
*/
if (width <= 0 || height <= 0) {
GdSetClipRegion(hdc->psd, NULL);
return;
}
/*
* Allocate initial vis region to parent-clipped size of window
*/
vis = GdAllocRectRegion(x, y, x+width, y+height);
/*
* Allocate temp region
*/
r = GdAllocRegion();
/*
* Now examine all windows that obscure this window, and
* for each obscuration, break up the clip rectangles into
* the smaller pieces that are still visible. The windows
* that can obscure us are the earlier siblings of all of
* our parents. When clipping the root window, search all children.
*/
pwp = wp;
while (pwp != NULL) {
wp = pwp;
pwp = wp->parent;
if(!pwp) {
/* We're clipping the root window*/
if(hdc->flags & DCX_CLIPCHILDREN)
/* start with root's children*/
sibwp = rootwp->children;
else sibwp = NULL; /* no search*/
wp = NULL; /* search all root's children*/
} else {
if(hdc->flags & DCX_CLIPSIBLINGS)
sibwp = pwp->children;
else sibwp = wp; /* no search*/
}
for (; sibwp != wp; sibwp = sibwp->siblings) {
if (sibwp->unmapcount)
continue;
GdSetRectRegionIndirect(r, &sibwp->winrect);
GdSubtractRegion(vis, vis, r);
}
/* if not clipping the root window, stop when you reach it*/
if(pwp == rootwp)
break;
}
/*
* If not the root window and we're going to be drawing
* in the client area, clip all children. This is
* required for non-special paint handling for child windows.
* Non-client dc's don't clip children in order to get
* proper border clipping in the case of border-clipped children.
*/
wp = hdc->hwnd;
if(wp != rootwp && MwIsClientDC(hdc)) {
for (sibwp=wp->children; sibwp; sibwp = sibwp->siblings) {
if (sibwp->unmapcount)
continue;
GdSetRectRegionIndirect(r, &sibwp->winrect);
GdSubtractRegion(vis, vis, r);
}
}
#if UPDATEREGIONS
/*
* Intersect with update region, unless requested not to.
*/
if(!(hdc->flags & DCX_EXCLUDEUPDATE))
GdIntersectRegion(vis, vis, wp->update);
#endif
/*
* Intersect with user region, if set.
*/
if (hdc->region)
GdIntersectRegion(vis, vis, hdc->region->rgn);
/*
* Set the clip region (later destroy handled by GdSetClipRegion)
*/
GdSetClipRegion(hdc->psd, vis);
/*
* Destroy temp region
*/
GdDestroyRegion(r);
}
/*
* Prepare to do drawing in a window or pixmap using the specified
* graphics context. Returns the drawable pointer if successful,
* and the type of drawing id that was supplied. Returns the special value
* GR_DRAW_TYPE_NONE if an error is generated, or if drawing is useless.
*/
GR_DRAW_TYPE
GsPrepareDrawing(GR_DRAW_ID id, GR_GC_ID gcid, GR_DRAWABLE **retdp)
{
GR_WINDOW *wp; /* found window */
GR_PIXMAP *pp; /* found pixmap */
GR_GC *gcp; /* found graphics context */
GR_REGION *regionp; /* user clipping region */
MWCLIPREGION*reg;
*retdp = NULL;
gcp = GsFindGC(gcid);
if (gcp == NULL)
return GR_DRAW_TYPE_NONE;
/*
* If the graphics context is not the current one, then
* make it the current one and remember to update it.
*/
if (gcp != curgcp) {
curgcp = gcp;
gcp->changed = GR_TRUE;
}
/*
* Look for window or pixmap id
*/
pp = NULL;
wp = GsFindWindow(id);
if (wp == NULL) {
pp = GsFindPixmap(id);
if (pp == NULL)
return GR_DRAW_TYPE_NONE;
havepixmap:
#if DYNAMICREGIONS
reg = GdAllocRectRegion(0, 0, pp->psd->xvirtres, pp->psd->yvirtres);
/* intersect with user region if any*/
if (gcp->regionid) {
regionp = GsFindRegion(gcp->regionid);
if (regionp) {
/* handle pixmap offsets*/
if (gcp->xoff || gcp->yoff) {
MWCLIPREGION *local = GdAllocRegion();
GdCopyRegion(local, regionp->rgn);
GdOffsetRegion(local, gcp->xoff, gcp->yoff);
GdIntersectRegion(reg, reg, local);
GdDestroyRegion(local);
} else
GdIntersectRegion(reg, reg, regionp->rgn);
}
}
GdSetClipRegion(pp->psd, reg);
#else
{
MWCLIPRECT cliprect;
/* FIXME: setup pixmap clipping, different from windows*/
cliprect.x = 0;
cliprect.y = 0;
cliprect.width = pp->psd->xvirtres;
cliprect.height = pp->psd->yvirtres;
GdSetClipRects(pp->psd, 1, &cliprect);
}
#endif
/* reset clip cache for next window draw*/
clipwp = NULL;
} else {
if (!wp->output) {
GsError(GR_ERROR_INPUT_ONLY_WINDOW, id);
return GR_DRAW_TYPE_NONE;
}
/* check if buffered window*/
if (wp->props & GR_WM_PROPS_BUFFERED) {
pp = wp->buffer;
wp = NULL;
goto havepixmap; /* draw into pixmap buffer*/
}
if (!wp->realized)
return GR_DRAW_TYPE_NONE;
/*
* If the window is not the currently clipped one,
* then make it the current one and define its clip rectangles.
*/
if (wp != clipwp || gcp->changed) {
#if DYNAMICREGIONS
/* find user region for intersect*/
regionp = gcp->regionid? GsFindRegion(gcp->regionid): NULL;
/* Special handling if user region is not at offset 0,0*/
if (regionp && (gcp->xoff || gcp->yoff)) {
MWCLIPREGION *local = GdAllocRegion();
GdCopyRegion(local, regionp->rgn);
GdOffsetRegion(local, gcp->xoff, gcp->yoff);
GsSetClipWindow(wp, local, gcp->mode & ~GR_MODE_DRAWMASK);
GdDestroyRegion(local);
} else
GsSetClipWindow(wp, regionp? regionp->rgn: NULL, gcp->mode & ~GR_MODE_DRAWMASK);
#else
GsSetClipWindow(wp, NULL, gcp->mode & ~GR_MODE_DRAWMASK);
#endif /* DYNAMICREGIONS*/
}
}
/*
* If the graphics context has been changed, then tell the
* device driver about it.
*/
if (gcp->changed) {
PSD psd = (wp ? wp->psd : pp->psd);
uint32_t mask;
int count;
if (gcp->linestyle == GR_LINE_SOLID) {
mask = 0;
count = 0;
} else {
mask = gcp->dashmask;
count = gcp->dashcount;
}
if (gcp->fgispixelval)
GdSetForegroundPixelVal(psd, gcp->foreground);
else
GdSetForegroundColor(psd, gcp->foreground);
if (gcp->bgispixelval)
GdSetBackgroundPixelVal(psd, gcp->background);
else
GdSetBackgroundColor(psd, gcp->background);
GdSetMode(gcp->mode & GR_MODE_DRAWMASK);
GdSetUseBackground(gcp->usebackground);
#if MW_FEATURE_SHAPES
GdSetDash(&mask, &count);
GdSetFillMode(gcp->fillmode);
GdSetTSOffset(gcp->ts_offset.x, gcp->ts_offset.y);
switch(gcp->fillmode) {
case GR_FILL_STIPPLE:
case GR_FILL_OPAQUE_STIPPLE:
GdSetStippleBitmap(gcp->stipple.bitmap, gcp->stipple.width, gcp->stipple.height);
break;
case GR_FILL_TILE:
GdSetTilePixmap(gcp->tile.psd, gcp->tile.width, gcp->tile.height);
break;
}
#endif
gcp->changed = GR_FALSE;
}
*retdp = wp? (GR_DRAWABLE *)wp: (GR_DRAWABLE *)pp;
return wp? GR_DRAW_TYPE_WINDOW: GR_DRAW_TYPE_PIXMAP;
}
/*
* Set the clip rectangles for a window taking into account other
* windows that may be obscuring it. The windows that may be obscuring
* this one are the siblings of each direct ancestor which are higher
* in priority than those ancestors. Also, each parent limits the visible
* area of the window. The clipping is not done if it is already up to
* date of if the window is not outputtable.
*/
void
GsSetClipWindow(GR_WINDOW *wp, MWCLIPREGION *userregion, int flags)
{
GR_WINDOW *orgwp; /* original window pointer */
GR_WINDOW *pwp; /* parent window */
GR_WINDOW *sibwp; /* sibling windows */
GR_COORD minx; /* minimum clip x coordinate */
GR_COORD miny; /* minimum clip y coordinate */
GR_COORD maxx; /* maximum clip x coordinate */
GR_COORD maxy; /* maximum clip y coordinate */
GR_COORD diff; /* difference in coordinates */
GR_SIZE bs; /* border size */
GR_COORD x, y, width, height;
MWCLIPREGION *vis, *r;
if (wp->unmapcount || !wp->output)
return;
clipwp = wp;
/*
* Start with the rectangle for the complete window.
* We will then cut pieces out of it as needed.
*/
x = wp->x;
y = wp->y;
width = wp->width;
height = wp->height;
/*
* First walk upwards through all parent windows,
* and restrict the visible part of this window to the part
* that shows through all of those parent windows.
*/
pwp = wp;
while (pwp != rootwp) {
pwp = pwp->parent;
diff = pwp->x - x;
if (diff > 0) {
width -= diff;
x = pwp->x;
}
diff = (pwp->x + pwp->width) - (x + width);
if (diff < 0)
width += diff;
diff = pwp->y - y;
if (diff > 0) {
height -= diff;
y = pwp->y;
}
diff = (pwp->y + pwp->height) - (y + height);
if (diff < 0)
height += diff;
}
/*
* If the window is completely clipped out of view, then
* set the clipping region to indicate that.
*/
if (width <= 0 || height <= 0) {
GdSetClipRegion(clipwp->psd, NULL);
return;
}
/*
* Allocate region to clipped size of window
*/
vis = GdAllocRectRegion(x, y, x+width, y+height);
/*
* Allocate temp region
*/
r = GdAllocRegion();
/*
* Now examine all windows that obscure this window, and
* for each obscuration, break up the clip rectangles into
* the smaller pieces that are still visible. The windows
* that can obscure us are the earlier siblings of all of
* our parents.
*/
orgwp = wp;
pwp = wp;
while (pwp != NULL) {
wp = pwp;
pwp = wp->parent;
if(!pwp) {
/* We're clipping the root window*/
if (!(flags & GR_MODE_EXCLUDECHILDREN))
/* start with root's children*/
sibwp = rootwp->children;
else sibwp = NULL; /* no search*/
wp = NULL; /* search all root's children*/
} else {
sibwp = pwp->children; /* clip siblings*/
}
for (; sibwp != wp; sibwp = sibwp->siblings) {
if (sibwp->unmapcount || !sibwp->output)
continue;
bs = sibwp->bordersize;
minx = sibwp->x - bs;
miny = sibwp->y - bs;
maxx = sibwp->x + sibwp->width + bs;
maxy = sibwp->y + sibwp->height + bs;
GdSetRectRegion(r, minx, miny, maxx, maxy);
GdSubtractRegion(vis, vis, r);
}
/* if not clipping the root window, stop when you reach it*/
if (pwp == rootwp)
break;
}
wp = orgwp;
/*
* If not the root window, clip all children.
* (Root window's children are are clipped above)
*/
if(wp != rootwp && !(flags & GR_MODE_EXCLUDECHILDREN)) {
for (sibwp=wp->children; sibwp; sibwp = sibwp->siblings) {
if (sibwp->unmapcount || !sibwp->output)
continue;
bs = sibwp->bordersize;
minx = sibwp->x - bs;
miny = sibwp->y - bs;
maxx = sibwp->x + sibwp->width + bs;
maxy = sibwp->y + sibwp->height + bs;
GdSetRectRegion(r, minx, miny, maxx, maxy);
GdSubtractRegion(vis, vis, r);
}
}
/*
* Intersect with user region, if set.
*/
if (userregion) {
/* temporarily offset region by window coordinates*/
GdOffsetRegion(userregion, wp->x, wp->y);
GdIntersectRegion(vis, vis, userregion);
GdOffsetRegion(userregion, -wp->x, -wp->y);
}
/*
* Set the clip region (later destroy handled by GdSetClipRegion)
*/
GdSetClipRegion(clipwp->psd, vis);
/*
* Destroy temp region
*/
GdDestroyRegion(r);
}
/* init framebuffer*/
static PSD
fb_open(PSD psd)
{
PSUBDRIVER subdriver;
char *env;
/* set statically in struct definition, may be overridden before calling fb_open*/
//psd->xres = psd->xvirtres = SCREEN_WIDTH;
//psd->yres = psd->yvirtres = SCREEN_HEIGHT;
/* use pixel format to set bpp*/
psd->pixtype = MWPIXEL_FORMAT;
switch (psd->pixtype) {
case MWPF_TRUECOLORARGB:
case MWPF_TRUECOLORABGR:
default:
psd->bpp = 32;
break;
case MWPF_TRUECOLORRGB:
psd->bpp = 24;
break;
case MWPF_TRUECOLOR565:
case MWPF_TRUECOLOR555:
psd->bpp = 16;
break;
case MWPF_TRUECOLOR332:
psd->bpp = 8;
break;
#if MWPIXEL_FORMAT == MWPF_PALETTE
case MWPF_PALETTE:
psd->bpp = SCREEN_DEPTH;
break;
#endif
}
psd->planes = 1;
/* set standard data format from bpp and pixtype*/
psd->data_format = set_data_format(psd);
/* Calculate the correct size and pitch from xres, yres and bpp*/
GdCalcMemGCAlloc(psd, psd->xres, psd->yres, psd->planes, psd->bpp, &psd->size, &psd->pitch);
psd->ncolors = (psd->bpp >= 24)? (1 << 24): (1 << psd->bpp);
psd->flags = PSF_SCREEN;
psd->portrait = MWPORTRAIT_NONE;
/* select an fb subdriver matching our planes and bpp for backing store*/
subdriver = select_fb_subdriver(psd);
psd->orgsubdriver = subdriver;
if (!subdriver)
return NULL;
/* set subdriver into screen driver*/
set_subdriver(psd, subdriver);
#ifdef PATH_FRAMEBUFFER
/* try opening framebuffer file for mmap*/
if((env = getenv("FRAMEBUFFER")) == NULL)
env = PATH_FRAMEBUFFER;
fb = open(env, O_RDWR);
#endif
if (fb >= 0) {
/* mmap framebuffer into this address space*/
psd->size = (psd->size + getpagesize() - 1) / getpagesize() * getpagesize();
psd->addr = mmap(NULL, psd->size, PROT_READ|PROT_WRITE, MAP_SHARED, fb, 0);
if (psd->addr == NULL || psd->addr == (unsigned char *)-1) {
EPRINTF("Error mmaping shared framebuffer %s: %m\n", env);
close(fb);
return NULL;
}
} else {
/* allocate framebuffer*/
if ((psd->addr = malloc(psd->size)) == NULL)
return NULL;
psd->flags |= PSF_ADDRMALLOC;
}
/* allocate update region*/
fb_updateregion = GdAllocRegion();
return psd; /* success*/
}
/*
* Initialize the graphics and mouse devices at startup.
* Returns nonzero with a message printed if the initialization failed.
*/
int
MwInitialize(void)
{
HWND wp; /* root window */
PSD psd;
WNDCLASS wc;
int fd;
static MWCURSOR arrow = { /* default arrow cursor*/
16, 16,
0, 0,
RGB(255, 255, 255), RGB(0, 0, 0),
{ 0xe000, 0x9800, 0x8600, 0x4180,
0x4060, 0x2018, 0x2004, 0x107c,
0x1020, 0x0910, 0x0988, 0x0544,
0x0522, 0x0211, 0x000a, 0x0004 },
{ 0xe000, 0xf800, 0xfe00, 0x7f80,
0x7fe0, 0x3ff8, 0x3ffc, 0x1ffc,
0x1fe0, 0x0ff0, 0x0ff8, 0x077c,
0x073e, 0x021f, 0x000e, 0x0004 }
};
extern MWLISTHEAD mwClassHead;
#if (UNIX | DOS_DJGPP) && !_MINIX
for (fd = 0; fd < FD_SETSIZE; fd++) {
userregfd[fd].read = NULL;
userregfd[fd].write = NULL;
userregfd[fd].except = NULL;
userregfd[fd].next = -1;
}
userregfd_head = -1;
#endif
/* catch terminate signal to restore tty state*/
signal(SIGTERM, (void *)MwTerminate);
startTicks = GetTickCount();
if ((keyb_fd = GdOpenKeyboard()) == -1) {
EPRINTF("Cannot initialise keyboard\n");
return -1;
}
if ((psd = GdOpenScreen()) == NULL) {
EPRINTF("Cannot initialise screen\n");
GdCloseKeyboard();
return -1;
}
if ((mouse_fd = GdOpenMouse()) == -1) {
EPRINTF("Cannot initialise mouse\n");
GdCloseScreen(psd);
GdCloseKeyboard();
return -1;
}
#if ANIMATEPALETTE
setfadelevel(psd, 0);
#endif
/*
* Initialize the root window.
*/
wc.style = CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW;
wc.lpfnWndProc = (WNDPROC)DefWindowProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = 0;
wc.hIcon = 0; /*LoadIcon(GetHInstance(), MAKEINTRESOURCE( 1));*/
wc.hCursor = 0; /*LoadCursor(NULL, IDC_ARROW);*/
wc.hbrBackground = CreateSolidBrush(GetSysColor(COLOR_BACKGROUND));
wc.lpszMenuName = NULL;
wc.lpszClassName = "DeskTop";
RegisterClass( &wc);
wp = GdItemNew(struct hwnd);
if (!wp) {
EPRINTF("No memory for root window\n");
GdCloseMouse();
GdCloseScreen(psd);
GdCloseKeyboard();
return -1;
}
/* remove the WS_CAPTION to have bare desktop window*/
/*wp->style = WS_CLIPCHILDREN | WS_CAPTION | WS_VISIBLE;*/
wp->style = WS_CLIPCHILDREN | WS_VISIBLE;
wp->exstyle = 0;
wp->pClass = (PWNDCLASS)mwClassHead.head;
wp->parent = NULL;
wp->children = NULL;
wp->siblings = NULL;
wp->next = NULL;
SetRect(&wp->winrect, 0, 0, psd->xvirtres, psd->yvirtres);
MwCalcClientRect(wp);
wp->cursor = NULL;
wp->unmapcount = 0;
wp->id = 0;
strcpy(wp->szTitle, "Microwindows");
wp->gotPaintMsg = PAINT_PAINTED;
#if UPDATEREGIONS
wp->update = GdAllocRegion();
#endif
listwp = wp;
rootwp = wp;
focuswp = wp;
mousewp = wp;
/* schedule desktop window paint*/
InvalidateRect(rootwp, NULL, TRUE);
#if VTSWITCH
MwInitVt();
/* Check for VT change every 50 ms: */
GdAddTimer(50, CheckVtChange, NULL);
#endif
/*
* Initialize and position the default cursor.
*/
curcursor = NULL;
cursorx = -1;
cursory = -1;
GdShowCursor(psd);
MwMoveCursor(psd->xvirtres / 2, psd->yvirtres / 2);
MwSetCursor(rootwp, &arrow);
/*
* Finally tell the mouse driver some things.
*/
GdRestrictMouse(0, 0, psd->xvirtres - 1, psd->yvirtres - 1);
GdMoveMouse(psd->xvirtres / 2, psd->yvirtres / 2);
return 0;
}
HWND WINAPI
CreateWindowEx(DWORD dwExStyle, LPCSTR lpClassName, LPCSTR lpWindowName,
DWORD dwStyle, int x, int y, int nWidth, int nHeight,
HWND hwndParent, HMENU hMenu, HINSTANCE hInstance, LPVOID lpParam)
{
HWND pwp; /* parent window */
HWND wp; /* new window */
HWND hwndOwner;
PWNDCLASS pClass;
CREATESTRUCT cs;
int titLen;
static int nextx = 20;
static int nexty = 20;
/* WARNING: All modification made here should be reported
on MwInitialize for the rootwp window */
pClass = MwFindClassByName(lpClassName);
if(!pClass)
return NULL;
if(x == CW_USEDEFAULT || y == CW_USEDEFAULT) {
x = nextx;
nextx += 10;
y = nexty;
nexty += 10;
if(nextx > 200)
nextx = nexty = 20;
}
if(nWidth == CW_USEDEFAULT || nHeight == CW_USEDEFAULT) {
nWidth = 250;
nHeight = 250;
}
if(hwndParent == NULL) {
if(dwStyle & WS_CHILD)
return NULL;
pwp = rootwp;
} else
pwp = hwndParent;
/* WS_POPUP z-order parent is the root window (passed parent is owner)*/
if(dwStyle & WS_POPUP)
pwp = rootwp; /* force clip to root, not z-parent*/
/* window owner is NULL for child windows, else it's the passed parent*/
if(dwStyle & WS_CHILD)
hwndOwner = NULL;
else hwndOwner = hwndParent;
wp = (HWND)GdItemAlloc(sizeof(struct hwnd) - 1 + pClass->cbWndExtra);
if(!wp)
return NULL;
/* force all clipping on by default*/
dwStyle |= WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
wp->pClass = pClass;
wp->lpfnWndProc = pClass->lpfnWndProc;
wp->style = dwStyle;
wp->exstyle = dwExStyle;
wp->parent = pwp;
wp->owner = hwndOwner;
wp->children = NULL;
wp->siblings = pwp->children;
pwp->children = wp;
wp->next = listwp;
listwp = wp;
wp->winrect.left = pwp->clirect.left + x;
wp->winrect.top = pwp->clirect.top + y;
wp->winrect.right = wp->winrect.left + nWidth;
wp->winrect.bottom = wp->winrect.top + nHeight;
wp->cursor = pwp->cursor;
wp->cursor->usecount++;
wp->unmapcount = pwp->unmapcount + 1;
wp->id = (int)hMenu;
wp->gotPaintMsg = PAINT_PAINTED;
titLen = 0;
if (lpWindowName != NULL)
titLen = strlen(lpWindowName);
if (titLen < 64) titLen = 64; /* old mw compatibility */
wp->szTitle = (LPTSTR)malloc(titLen + 1);
if (wp->szTitle == NULL) {
free(wp);
return NULL;
}
if (lpWindowName != NULL)
strcpy(wp->szTitle, lpWindowName);
else
wp->szTitle[0] = '\0';
#if UPDATEREGIONS
wp->update = GdAllocRegion();
#endif
wp->nextrabytes = pClass->cbWndExtra;
wp->hInstance = hInstance;
wp->nEraseBkGnd = 1;
wp->paintBrush = NULL;
wp->paintPen = NULL;
/* calculate client area*/
MwCalcClientRect(wp);
cs.lpCreateParams = lpParam;
cs.hInstance = hInstance;
cs.hMenu = hMenu;
cs.hwndParent = hwndParent;
cs.cy = nHeight;
cs.cx = nWidth;
cs.y = y;
cs.x = x;
cs.style = dwStyle;
cs.lpszName = lpWindowName;
cs.lpszClass = lpClassName;
cs.dwExStyle = dwExStyle;
if(SendMessage(wp, WM_CREATE, 0, (LPARAM)(LPSTR)&cs) == -1) {
MwDestroyWindow(wp, FALSE);
return NULL;
}
/* send SIZE and MOVE msgs*/
MwSendSizeMove(wp, TRUE, TRUE);
if(wp->style & WS_VISIBLE) {
MwShowWindow(wp, TRUE);
SetFocus(wp);
}
return wp;
}
/*
* GdAllocPolyPolygonRegion
*/
MWCLIPREGION *
GdAllocPolyPolygonRegion(MWPOINT *points, int *count, int nbpolygons, int mode)
{
MWCLIPREGION *rgn;
EdgeTableEntry *pAET; /* Active Edge Table */
int y; /* current scanline */
int iPts = 0; /* number of pts in buffer */
EdgeTableEntry *pWETE; /* Winding Edge Table Entry*/
ScanLineList *pSLL; /* current scanLineList */
MWPOINT *pts; /* output buffer */
EdgeTableEntry *pPrevAET; /* ptr to previous AET */
EdgeTable ET; /* header node for ET */
EdgeTableEntry AET; /* header node for AET */
EdgeTableEntry *pETEs; /* EdgeTableEntries pool */
ScanLineListBlock SLLBlock; /* header for scanlinelist */
int fixWAET = FALSE;
POINTBLOCK FirstPtBlock, *curPtBlock; /* PtBlock buffers */
POINTBLOCK *tmpPtBlock;
int numFullPtBlocks = 0;
int poly, total;
if(!(rgn = GdAllocRegion()))
return NULL;
/* special case a rectangle */
if (((nbpolygons == 1) && ((*count == 4) ||
((*count == 5) && (points[4].x == points[0].x)
&& (points[4].y == points[0].y)))) &&
(((points[0].y == points[1].y) &&
(points[1].x == points[2].x) &&
(points[2].y == points[3].y) &&
(points[3].x == points[0].x)) ||
((points[0].x == points[1].x) &&
(points[1].y == points[2].y) &&
(points[2].x == points[3].x) &&
(points[3].y == points[0].y))))
{
GdSetRectRegion( rgn,
MWMIN(points[0].x, points[2].x), MWMIN(points[0].y, points[2].y),
MWMAX(points[0].x, points[2].x), MWMAX(points[0].y, points[2].y) );
return rgn;
}
for(poly = total = 0; poly < nbpolygons; poly++)
total += count[poly];
if (! (pETEs = malloc( sizeof(EdgeTableEntry) * total )))
{
GdDestroyRegion( rgn );
return 0;
}
pts = FirstPtBlock.pts;
REGION_CreateETandAET(count, nbpolygons, points, &ET, &AET,
pETEs, &SLLBlock);
pSLL = ET.scanlines.next;
curPtBlock = &FirstPtBlock;
if (mode != MWPOLY_WINDING) {
/*
* for each scanline
*/
for (y = ET.ymin; y < ET.ymax; y++) {
/*
* Add a new edge to the active edge table when we
* get to the next edge.
*/
if (pSLL != NULL && y == pSLL->scanline) {
REGION_loadAET(&AET, pSLL->edgelist);
pSLL = pSLL->next;
}
pPrevAET = &AET;
pAET = AET.next;
/*
* for each active edge
*/
while (pAET) {
pts->x = pAET->bres.minor_axis, pts->y = y;
pts++, iPts++;
/*
* send out the buffer
*/
if (iPts == NUMPTSTOBUFFER) {
tmpPtBlock = malloc( sizeof(POINTBLOCK));
if(!tmpPtBlock) {
return 0;
}
curPtBlock->next = tmpPtBlock;
curPtBlock = tmpPtBlock;
pts = curPtBlock->pts;
numFullPtBlocks++;
iPts = 0;
}
EVALUATEEDGEEVENODD(pAET, pPrevAET, y);
}
REGION_InsertionSort(&AET);
}
}
else {
/*
* for each scanline
*/
for (y = ET.ymin; y < ET.ymax; y++) {
/*
* Add a new edge to the active edge table when we
* get to the next edge.
*/
if (pSLL != NULL && y == pSLL->scanline) {
REGION_loadAET(&AET, pSLL->edgelist);
REGION_computeWAET(&AET);
pSLL = pSLL->next;
}
pPrevAET = &AET;
pAET = AET.next;
pWETE = pAET;
/*
* for each active edge
*/
while (pAET) {
/*
* add to the buffer only those edges that
* are in the Winding active edge table.
*/
if (pWETE == pAET) {
pts->x = pAET->bres.minor_axis, pts->y = y;
pts++, iPts++;
/*
* send out the buffer
*/
if (iPts == NUMPTSTOBUFFER) {
tmpPtBlock = malloc( sizeof(POINTBLOCK) );
if(!tmpPtBlock) {
return 0;
}
curPtBlock->next = tmpPtBlock;
curPtBlock = tmpPtBlock;
pts = curPtBlock->pts;
numFullPtBlocks++; iPts = 0;
}
pWETE = pWETE->nextWETE;
}
EVALUATEEDGEWINDING(pAET, pPrevAET, y, fixWAET);
}
/*
* recompute the winding active edge table if
* we just resorted or have exited an edge.
*/
if (REGION_InsertionSort(&AET) || fixWAET) {
REGION_computeWAET(&AET);
fixWAET = FALSE;
}
}
}
REGION_FreeStorage(SLLBlock.next);
REGION_PtsToRegion(numFullPtBlocks, iPts, &FirstPtBlock, rgn);
for (curPtBlock = FirstPtBlock.next; --numFullPtBlocks >= 0;) {
tmpPtBlock = curPtBlock->next;
free( curPtBlock );
curPtBlock = tmpPtBlock;
}
free( pETEs );
return rgn;
}
/**
* Set a clip region for future drawing actions.
* Each pixel will be drawn only if lies in one or more of the contained
* clip rectangles. All clip rectangles are modified
* if necessary to lie within the device area. Call only after device
* has been initialized.
*
* @param psd Drawing surface.
* @param reg New clipping region.
*/
void
GdSetClipRegion(PSD psd, MWCLIPREGION *reg)
{
if(clipregion)
GdDestroyRegion(clipregion);
if(!reg)
reg = GdAllocRegion();
clipregion = reg;
#if 0
MWRECT rc;
/* Copy the clip table to our own static array, modifying each
* rectangle as necesary to fit within the device area. If the clip
* rectangle lies entirely outside of the device area, then skip it.
*/
while (count-- > 0) {
MWCLIPRECT cr;
MWCLIPRECT *rp = &cr;
*rp = *table++;
if (rp->x < 0) {
rp->width += rp->x;
rp->x = 0;
}
if (rp->y < 0) {
rp->height += rp->y;
rp->y = 0;
}
if ((rp->x >= psd->xvirtres) || (rp->width <= 0) ||
(rp->y >= psd->yvirtres) || (rp->height <= 0))
continue;
if (rp->x + rp->width > psd->xvirtres)
rp->width = psd->xvirtres - rp->x;
if (rp->y + rp->height > psd->yvirtres)
rp->height = psd->yvirtres - rp->y;
rc.left = rp->x;
rc.top = rp->y;
rc.right = rp->x+rp->width;
rc.bottom = rp->y+rp->height;
GdUnionRectWithRegion(&rc, clipregion);
}
#endif
/* If there were no surviving clip rectangles, then set the clip
* cache to prevent all drawing.
*/
if (clipregion->numRects == 0) {
clipminx = MIN_MWCOORD;
clipminy = MIN_MWCOORD;
clipmaxx = MAX_MWCOORD;
clipmaxy = MAX_MWCOORD;
clipresult = FALSE;
return;
}
/* There was at least one valid clip rectangle. Default the clip
* cache to be the first clip rectangle.
*/
clipminx = clipregion->rects[0].left;
clipminy = clipregion->rects[0].top;
clipmaxx = clipregion->rects[0].right - 1;
clipmaxy = clipregion->rects[0].bottom - 1;
clipresult = TRUE;
}
