[dquintana] 70337: [MAGNIFY] * Use GetGUIThreadInfo instead of multiple separate "hacks" to obtain all the necessary data in one single call. * Keep the off-screen DC for later use, and only recrea...
13 Dec
2015
13 Dec
'15
5:07 a.m.
Author: dquintana
Date: Sun Dec 13 05:07:37 2015
New Revision: 70337
URL: http://svn.reactos.org/svn/reactos?rev=70337&view=rev
Log:
[MAGNIFY]
* Use GetGUIThreadInfo instead of multiple separate "hacks" to obtain all the
necessary data in one single call.
* Keep the off-screen DC for later use, and only recreate when needed.
* Restore caret follow back to default-on.
More changes toward CORE-10691
Modified:
trunk/reactos/base/applications/magnify/magnifier.c
trunk/reactos/base/applications/magnify/settings.c
Modified: trunk/reactos/base/applications/magnify/magnifier.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/magnify/…
==============================================================================
--- trunk/reactos/base/applications/magnify/magnifier.c [iso-8859-1] (original)
+++ trunk/reactos/base/applications/magnify/magnifier.c [iso-8859-1] Sun Dec 13 05:07:37
2015
@@ -44,6 +44,13 @@
HWND hOptionsDialog;
BOOL bOptionsDialog = FALSE;
+BOOL bRecreateOffscreenDC = TRUE;
+LONG sourceWidth = 0;
+LONG sourceHeight = 0;
+HDC hdcOffscreen = NULL;
+HANDLE hbmpOld;
+HBITMAP hbmpOffscreen = NULL;
+
/* Current magnified area */
POINT cp;
@@ -51,6 +58,8 @@
POINT pMouse;
POINT pCaret;
POINT pFocus;
+HWND pCaretWnd;
+HWND pFocusWnd;
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
@@ -96,6 +105,11 @@
DispatchMessage(&msg);
}
}
+
+
+ SelectObject(hdcOffscreen, hbmpOld);
+ DeleteObject (hbmpOffscreen);
+ DeleteDC(hdcOffscreen);
return (int) msg.wParam;
}
@@ -201,9 +215,6 @@
void Draw(HDC aDc)
{
HDC desktopHdc = NULL;
- HDC HdcStretch;
- HANDLE hOld;
- HBITMAP HbmpStrech;
RECT sourceRect, intersectedRect;
RECT targetRect, appRect;
@@ -212,7 +223,6 @@
ICONINFO iinfo;
int AppWidth, AppHeight;
- LONG blitAreaWidth, blitAreaHeight;
if (bInvertColors)
rop = NOTSRCCOPY;
@@ -220,7 +230,8 @@
desktopHdc = GetDC(0);
GetClientRect(hMainWnd, &appRect);
- GetWindowRect(hDesktopWindow, &sourceRect);
+ AppWidth = (appRect.right - appRect.left);
+ AppHeight = (appRect.bottom - appRect.top);
ZeroMemory(&cinfo, sizeof(cinfo));
ZeroMemory(&iinfo, sizeof(iinfo));
@@ -232,38 +243,48 @@
ClientToScreen(hMainWnd, (POINT*)&targetRect.left);
ClientToScreen(hMainWnd, (POINT*)&targetRect.right);
- AppWidth = (appRect.right - appRect.left);
- AppHeight = (appRect.bottom - appRect.top);
-
- blitAreaWidth = AppWidth / iZoom;
- blitAreaHeight = AppHeight / iZoom;
-
- sourceRect.left = (cp.x) - (blitAreaWidth /2);
- sourceRect.top = (cp.y) - (blitAreaHeight /2);
- sourceRect.right = sourceRect.left + blitAreaWidth;
- sourceRect.bottom = sourceRect.top + blitAreaHeight;
+ if (bRecreateOffscreenDC || !hdcOffscreen)
+ {
+ bRecreateOffscreenDC = FALSE;
+
+ if(hdcOffscreen)
+ {
+ SelectObject(hdcOffscreen, hbmpOld);
+ DeleteObject (hbmpOffscreen);
+ DeleteDC(hdcOffscreen);
+ }
+
+ sourceWidth = AppWidth / iZoom;
+ sourceHeight = AppHeight / iZoom;
+
+ /* Create a memory DC compatible with client area DC */
+ hdcOffscreen = CreateCompatibleDC(desktopHdc);
+
+ /* Create a bitmap compatible with the client area DC */
+ hbmpOffscreen = CreateCompatibleBitmap(
+ desktopHdc,
+ sourceWidth,
+ sourceHeight);
+
+ /* Select our bitmap in memory DC and save the old one */
+ hbmpOld = SelectObject(hdcOffscreen , hbmpOffscreen);
+ }
+
+ GetWindowRect(hDesktopWindow, &sourceRect);
+ sourceRect.left = (cp.x) - (sourceWidth /2);
+ sourceRect.top = (cp.y) - (sourceHeight /2);
+ sourceRect.right = sourceRect.left + sourceWidth;
+ sourceRect.bottom = sourceRect.top + sourceHeight;
GetBestOverlapWithMonitors(&sourceRect);
-
- /* Create a memory DC compatible with client area DC */
- HdcStretch = CreateCompatibleDC(desktopHdc);
-
- /* Create a bitmap compatible with the client area DC */
- HbmpStrech = CreateCompatibleBitmap(
- desktopHdc,
- blitAreaWidth,
- blitAreaHeight);
-
- /* Select our bitmap in memory DC and save the old one */
- hOld = SelectObject(HdcStretch , HbmpStrech);
/* Paint the screen bitmap to our in memory DC */
BitBlt(
- HdcStretch,
+ hdcOffscreen,
0,
0,
- blitAreaWidth,
- blitAreaHeight,
+ sourceWidth,
+ sourceHeight,
desktopHdc,
sourceRect.left,
sourceRect.top,
@@ -272,12 +293,12 @@
if (IntersectRect(&intersectedRect, &sourceRect, &targetRect))
{
OffsetRect(&intersectedRect, -sourceRect.left, -sourceRect.top);
- FillRect(HdcStretch, &intersectedRect, GetStockObject(DC_BRUSH));
+ FillRect(hdcOffscreen, &intersectedRect, GetStockObject(DC_BRUSH));
}
/* Draw the mouse pointer in the right position */
DrawIcon(
- HdcStretch ,
+ hdcOffscreen ,
pMouse.x - iinfo.xHotspot - sourceRect.left, // - 10,
pMouse.y - iinfo.yHotspot - sourceRect.top, // - 10,
cinfo.hCursor);
@@ -289,11 +310,11 @@
0,
AppWidth,
AppHeight,
- HdcStretch,
+ hdcOffscreen,
0,
0,
- blitAreaWidth,
- blitAreaHeight,
+ sourceWidth,
+ sourceHeight,
SRCCOPY | NOMIRRORBITMAP);
/* Cleanup */
@@ -301,9 +322,6 @@
DeleteObject(iinfo.hbmMask);
if (iinfo.hbmColor)
DeleteObject(iinfo.hbmColor);
- SelectObject(HdcStretch, hOld);
- DeleteObject (HbmpStrech);
- DeleteDC(HdcStretch);
ReleaseDC(hDesktopWindow, desktopHdc);
}
@@ -332,6 +350,12 @@
case WM_TIMER:
{
BOOL hasMoved = FALSE;
+ HWND hwndForeground = GetForegroundWindow ();
+ DWORD threadId = GetWindowThreadProcessId(hwndForeground, NULL);
+ GUITHREADINFO guiInfo;
+ guiInfo.cbSize = sizeof(guiInfo);
+
+ GetGUIThreadInfo(threadId, &guiInfo);
if (bFollowMouse)
{
@@ -350,47 +374,43 @@
}
}
- if (bFollowCaret && !hasMoved)
- {
- POINT pNewCaret;
- HWND hwnd2;
-
- //Get caret position
- HWND hwnd1 = GetForegroundWindow ();
- DWORD a = GetWindowThreadProcessId(hwnd1, NULL);
- DWORD b = GetCurrentThreadId();
- AttachThreadInput (a, b, TRUE);
- hwnd2 = GetFocus();
-
- GetCaretPos( &pNewCaret);
- ClientToScreen (hwnd2, (LPPOINT) &pNewCaret);
- AttachThreadInput (a, b, FALSE);
-
- if (((pCaret.x != pNewCaret.x) || (pCaret.y != pNewCaret.y)))
+ if (bFollowCaret && hwndForeground && guiInfo.hwndCaret)
+ {
+ POINT ptCaret;
+ ptCaret.x = (guiInfo.rcCaret.left + guiInfo.rcCaret.right) / 2;
+ ptCaret.y = (guiInfo.rcCaret.top + guiInfo.rcCaret.bottom) / 2;
+
+ if (guiInfo.hwndCaret && ((pCaretWnd != guiInfo.hwndCaret) ||
(pCaret.x != ptCaret.x) || (pCaret.y != ptCaret.y)))
{
//Update to new position
- pCaret = pNewCaret;
- cp = pNewCaret;
+ pCaret = ptCaret;
+ pCaretWnd = guiInfo.hwndCaret;
+ if(!hasMoved)
+ {
+ ClientToScreen (guiInfo.hwndCaret, (LPPOINT) &ptCaret);
+ cp = ptCaret;
+ }
hasMoved = TRUE;
}
}
- if (bFollowFocus && !hasMoved)
- {
- POINT pNewFocus;
- RECT controlRect;
+ if (bFollowFocus && hwndForeground && guiInfo.hwndFocus)
+ {
+ POINT ptFocus;
+ RECT activeRect;
//Get current control focus
- HWND hwnd3 = GetFocus ();
- GetWindowRect (hwnd3 , &controlRect);
- pNewFocus.x = controlRect.left;
- pNewFocus.y = controlRect.top;
-
- if(((pFocus.x != pNewFocus.x) || (pFocus.y != pNewFocus.y)))
+ GetWindowRect (guiInfo.hwndFocus, &activeRect);
+ ptFocus.x = (activeRect.left + activeRect.right) / 2;
+ ptFocus.y = (activeRect.top + activeRect.bottom) / 2;
+
+ if(guiInfo.hwndFocus && ((guiInfo.hwndFocus != pFocusWnd) ||
(pFocus.x != ptFocus.x) || (pFocus.y != ptFocus.y)))
{
//Update to new position
- pFocus = pNewFocus;
- cp = pNewFocus;
+ pFocus = ptFocus;
+ pFocusWnd = guiInfo.hwndFocus;
+ if(!hasMoved)
+ cp = ptFocus;
hasMoved = TRUE;
}
}
@@ -451,6 +471,16 @@
break;
}
+ case WM_CONTEXTMENU:
+ TrackPopupMenu(notifyMenu, 0, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam), 0,
hWnd, NULL);
+ break;
+
+ case WM_SIZE:
+ case WM_DISPLAYCHANGE:
+ bRecreateOffscreenDC = TRUE;
+ Refresh();
+ return DefWindowProc(hWnd, message, wParam, lParam);
+
case WM_ERASEBKGND:
// handle WM_ERASEBKGND by simply returning non-zero because we did all the
drawing in WM_PAINT.
break;
@@ -511,12 +541,6 @@
break;
- case WM_CONTEXTMENU:
- {
- TrackPopupMenu(notifyMenu, 0, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam), 0,
hWnd, NULL);
- break;
- }
-
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
Modified: trunk/reactos/base/applications/magnify/settings.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/magnify/…
==============================================================================
--- trunk/reactos/base/applications/magnify/settings.c [iso-8859-1] (original)
+++ trunk/reactos/base/applications/magnify/settings.c [iso-8859-1] Sun Dec 13 05:07:37
2015
@@ -18,7 +18,7 @@
BOOL bFollowMouse = TRUE;
BOOL bFollowFocus = TRUE;
-BOOL bFollowCaret = FALSE; // FIXME: Default to false because AttachThreadInput seems to
break.
+BOOL bFollowCaret = TRUE;
BOOL bInvertColors = FALSE;
BOOL bStartMinimized = FALSE;
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