- port to minGw

git-svn-id: http://moon:8086/svn/software/trunk/projects/JaySynth@235 b431acfa-c32f-4a4a-93f1-934dc6c82436
2015-02-21 17:09:43 +00:00
parent 843c6e300c
commit cfc9645b0b
1093 changed files with 426078 additions and 143 deletions
@@ -0,0 +1,107 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2013 - Raw Material Software Ltd.
+
+   Permission is granted to use this software under the terms of either:
+   a) the GPL v2 (or any later version)
+   b) the Affero GPL v3
+
+   Details of these licenses can be found at: www.gnu.org/licenses
+
+   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   ------------------------------------------------------------------------------
+
+   To release a closed-source product which uses JUCE, commercial licenses are
+   available: visit www.juce.com for more information.
+
+  ==============================================================================
+*/
+
+#if JUCE_WINDOWS
+
+namespace juce
+{
+    // This function is in juce_win32_Windowing.cpp
+    extern bool offerKeyMessageToJUCEWindow (MSG&);
+}
+
+namespace
+{
+    static HHOOK mouseWheelHook = 0, keyboardHook = 0;
+    static int numHookUsers = 0;
+
+    struct WindowsHooks
+    {
+        WindowsHooks()
+        {
+            if (numHookUsers++ == 0)
+            {
+                mouseWheelHook = SetWindowsHookEx (WH_MOUSE, mouseWheelHookCallback,
+                                                   (HINSTANCE) Process::getCurrentModuleInstanceHandle(),
+                                                   GetCurrentThreadId());
+
+                keyboardHook = SetWindowsHookEx (WH_GETMESSAGE, keyboardHookCallback,
+                                                 (HINSTANCE) Process::getCurrentModuleInstanceHandle(),
+                                                 GetCurrentThreadId());
+            }
+        }
+
+        ~WindowsHooks()
+        {
+            if (--numHookUsers == 0)
+            {
+                if (mouseWheelHook != 0)
+                {
+                    UnhookWindowsHookEx (mouseWheelHook);
+                    mouseWheelHook = 0;
+                }
+
+                if (keyboardHook != 0)
+                {
+                    UnhookWindowsHookEx (keyboardHook);
+                    keyboardHook = 0;
+                }
+            }
+        }
+
+        static LRESULT CALLBACK mouseWheelHookCallback (int nCode, WPARAM wParam, LPARAM lParam)
+        {
+            if (nCode >= 0 && wParam == WM_MOUSEWHEEL)
+            {
+                // using a local copy of this struct to support old mingw libraries
+                struct MOUSEHOOKSTRUCTEX_  : public MOUSEHOOKSTRUCT  { DWORD mouseData; };
+
+                const MOUSEHOOKSTRUCTEX_& hs = *(MOUSEHOOKSTRUCTEX_*) lParam;
+
+                if (Component* const comp = Desktop::getInstance().findComponentAt (Point<int> (hs.pt.x, hs.pt.y)))
+                    if (comp->getWindowHandle() != 0)
+                        return PostMessage ((HWND) comp->getWindowHandle(), WM_MOUSEWHEEL,
+                                            hs.mouseData & 0xffff0000, (hs.pt.x & 0xffff) | (hs.pt.y << 16));
+            }
+
+            return CallNextHookEx (mouseWheelHook, nCode, wParam, lParam);
+        }
+
+        static LRESULT CALLBACK keyboardHookCallback (int nCode, WPARAM wParam, LPARAM lParam)
+        {
+            MSG& msg = *(MSG*) lParam;
+
+            if (nCode == HC_ACTION && wParam == PM_REMOVE
+                 && offerKeyMessageToJUCEWindow (msg))
+            {
+                zerostruct (msg);
+                msg.message = WM_USER;
+                return 1;
+            }
+
+            return CallNextHookEx (keyboardHook, nCode, wParam, lParam);
+        }
+    };
+}
+
+#endif