/* * Hide the window to make it and its children invisible on the screen. * This is a recursive routine which increments the unmapcount values for * this window and all of its children, and causes exposure events for * windows which are newly uncovered. */ void MwHideWindow(HWND hwnd,BOOL bChangeFocus, BOOL bSendMsg) { HWND wp = hwnd; HWND pwp; /* parent window */ HWND sibwp; /* sibling window */ HWND childwp; /* child window */ if (wp == rootwp) return; ++mwpaintNC; /* experimental NC paint handling*/ /* send hide message if currently visible*/ if(bSendMsg && wp->unmapcount == 0) SendMessage(wp, WM_SHOWWINDOW, FALSE, 0L); wp->unmapcount++; for (childwp = wp->children; childwp; childwp = childwp->siblings) MwHideWindow(childwp, bChangeFocus, bSendMsg); if (wp == mousewp) { MwCheckMouseWindow(); MwCheckCursor(); } if (bChangeFocus && wp == focuswp) SetFocus(rootwp->children? rootwp->children: rootwp); /* * If the parent window is still unmapped, then we are all done. */ if (wp->parent->unmapcount) return; /* * Clear the area in the parent for this window, causing an * exposure event for it. */ pwp = wp->parent; MwClearWindow(pwp, wp->winrect.left - pwp->winrect.left, wp->winrect.top - pwp->winrect.top, wp->winrect.right - wp->winrect.left, wp->winrect.bottom - wp->winrect.top, TRUE); /* * Finally clear and redraw all parts of our lower sibling * windows that were covered by this window. */ sibwp = wp; while (sibwp->siblings) { sibwp = sibwp->siblings; MwExposeArea(sibwp, wp->winrect.left, wp->winrect.top, wp->winrect.right - wp->winrect.left, wp->winrect.bottom - wp->winrect.top); } }
/* * Move the cursor to the specified absolute screen coordinates. * The coordinates are that of the defined hot spot of the cursor. * The cursor's appearance is changed to that defined for the window * in which the cursor is moved to. In addition, the window the * cursor is in is recalculated. */ void MwMoveCursor(MWCOORD x, MWCOORD y) { /* * Move the cursor only if necessary, offsetting it to * place the hot spot at the specified coordinates. */ if (x != cursorx || y != cursory) { if(curcursor) GdMoveCursor(x - curcursor->cursor.hotx, y - curcursor->cursor.hoty); cursorx = x; cursory = y; } /* * Now check to see which window the mouse is in and whether or * not the cursor shape should be changed. */ MwCheckMouseWindow(); MwCheckCursor(); }
/* * Map the window to possibly make it and its children visible on the screen. * This is a recursive routine which decrements the unmapcount values for * this window and all of its children, and causes exposure events for * those windows which become visible. */ void MwShowWindow(HWND hwnd, BOOL bSendMsg) { HWND wp = hwnd; if (wp == rootwp) return; ++mwpaintNC; /* experimental NC paint handling*/ if (wp->unmapcount) wp->unmapcount--; if (wp->unmapcount == 0) { SendMessage(wp, WM_SHOWWINDOW, TRUE, 0L); MwCheckMouseWindow(); MwCheckCursor(); } /* * If the window just became visible, * then draw its border, clear it to the background color, and * generate an exposure event. */ if (wp->unmapcount == 0) { /*MwDrawBorder(wp);*/ MwClearWindow(wp, 0, 0, wp->winrect.right - wp->winrect.left, wp->winrect.bottom - wp->winrect.top, TRUE); } /* * Do the same thing for the children. */ for (wp = wp->children; wp; wp = wp->siblings) MwShowWindow(wp, bSendMsg); }
/* * Destroy the specified window, and all of its children. * This is a recursive routine. */ void MwDestroyWindow(HWND hwnd,BOOL bSendMsg) { HWND wp = hwnd; HWND prevwp; PMWLIST p; PMSG pmsg; if (wp == rootwp || !IsWindow (hwnd)) return; /* * Unmap the window. */ if (wp->unmapcount == 0) MwHideWindow(wp, FALSE, FALSE); if(bSendMsg) SendMessage(hwnd, WM_DESTROY, 0, 0L); /* * Remove from timers */ MwRemoveWndFromTimers(hwnd); /* * Remove hotkeys */ MwRemoveWndFromHotkeys(hwnd); /* * Disable all sendmessages to this window. */ wp->lpfnWndProc = NULL; /* * Destroy all children, sending WM_DESTROY messages. */ while (wp->children) MwDestroyWindow(wp->children, bSendMsg); wp->pClass = NULL; /* * Free any cursor associated with the window. */ if (wp->cursor->usecount-- == 1) { free(wp->cursor); wp->cursor = NULL; } /* * Remove this window from the child list of its parent. */ prevwp = wp->parent->children; if (prevwp == wp) wp->parent->children = wp->siblings; else { while (prevwp && prevwp->siblings != wp) prevwp = prevwp->siblings; if (prevwp) prevwp->siblings = wp->siblings; } wp->siblings = NULL; /* * Remove this window from the complete list of windows. */ prevwp = listwp; if (prevwp == wp) listwp = wp->next; else { while (prevwp->next && prevwp->next != wp) prevwp = prevwp->next; prevwp->next = wp->next; } wp->next = NULL; /* * Forget various information related to this window. * Then finally free the structure. */ /* Remove all messages from msg queue for this window*/ for(p=mwMsgHead.head; p; ) { pmsg = GdItemAddr(p, MSG, link); if(pmsg->hwnd == wp) { p = p->next; GdListRemove(&mwMsgHead, &pmsg->link); GdItemFree(pmsg); } else p = p->next; } /* * Remove all properties from this window. */ for(p=hwnd->props.head; p; ) { MWPROP *pProp = GdItemAddr(p, MWPROP, link); p = p->next; GdListRemove (&hwnd->props, &pProp->link); GdItemFree (pProp); } /* FIXME: destroy hdc's relating to window?*/ if (wp == capturewp) { capturewp = NULL; MwCheckMouseWindow(); } if (wp == MwGetTopWindow(focuswp)) SetFocus(rootwp->children? rootwp->children: rootwp); /* destroy private DC*/ if(wp->owndc) { HDC hdc = wp->owndc; wp->owndc = NULL; /* force destroy with ReleaseDC*/ ReleaseDC(wp, hdc); } if (wp->szTitle) { free(wp->szTitle); wp->szTitle = NULL; } #if UPDATEREGIONS if (wp->update) { GdDestroyRegion(wp->update); wp->update = NULL; } #endif GdItemFree(wp); }