- added JUCE library code

git-svn-id: http://moon:8086/svn/software/trunk/projects/FsTrack@357 b431acfa-c32f-4a4a-93f1-934dc6c82436
2018-06-12 16:53:56 +00:00
parent fd05a8501a
commit 88f2f0e9aa
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+/*
+  ==============================================================================
+
+   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.
+
+  ==============================================================================
+*/
+
+#ifndef JUCE_TEXTEDITORKEYMAPPER_H_INCLUDED
+#define JUCE_TEXTEDITORKEYMAPPER_H_INCLUDED
+
+
+//==============================================================================
+/** This class is used to invoke a range of text-editor navigation methods on
+    an object, based upon a keypress event.
+
+    It's currently used internally by the TextEditor and CodeEditorComponent.
+*/
+template <class CallbackClass>
+struct TextEditorKeyMapper
+{
+    /** Checks the keypress and invokes one of a range of navigation functions that
+        the target class must implement, based on the key event.
+    */
+    static bool invokeKeyFunction (CallbackClass& target, const KeyPress& key)
+    {
+        const ModifierKeys& mods = key.getModifiers();
+
+        const bool isShiftDown   = mods.isShiftDown();
+        const bool ctrlOrAltDown = mods.isCtrlDown() || mods.isAltDown();
+
+        int numCtrlAltCommandKeys = 0;
+        if (mods.isCtrlDown())    ++numCtrlAltCommandKeys;
+        if (mods.isAltDown())     ++numCtrlAltCommandKeys;
+
+        if (key == KeyPress (KeyPress::downKey, ModifierKeys::ctrlModifier, 0) && target.scrollUp())   return true;
+        if (key == KeyPress (KeyPress::upKey,   ModifierKeys::ctrlModifier, 0) && target.scrollDown()) return true;
+
+       #if JUCE_MAC
+        if (mods.isCommandDown() && ! ctrlOrAltDown)
+        {
+            if (key.isKeyCode (KeyPress::upKey))        return target.moveCaretToTop (isShiftDown);
+            if (key.isKeyCode (KeyPress::downKey))      return target.moveCaretToEnd (isShiftDown);
+            if (key.isKeyCode (KeyPress::leftKey))      return target.moveCaretToStartOfLine (isShiftDown);
+            if (key.isKeyCode (KeyPress::rightKey))     return target.moveCaretToEndOfLine   (isShiftDown);
+        }
+
+        if (mods.isCommandDown())
+            ++numCtrlAltCommandKeys;
+       #endif
+
+        if (numCtrlAltCommandKeys < 2)
+        {
+            if (key.isKeyCode (KeyPress::leftKey))  return target.moveCaretLeft  (ctrlOrAltDown, isShiftDown);
+            if (key.isKeyCode (KeyPress::rightKey)) return target.moveCaretRight (ctrlOrAltDown, isShiftDown);
+
+            if (key.isKeyCode (KeyPress::homeKey))  return ctrlOrAltDown ? target.moveCaretToTop         (isShiftDown)
+                                                                         : target.moveCaretToStartOfLine (isShiftDown);
+            if (key.isKeyCode (KeyPress::endKey))   return ctrlOrAltDown ? target.moveCaretToEnd         (isShiftDown)
+                                                                         : target.moveCaretToEndOfLine   (isShiftDown);
+        }
+
+        if (numCtrlAltCommandKeys == 0)
+        {
+            if (key.isKeyCode (KeyPress::upKey))        return target.moveCaretUp   (isShiftDown);
+            if (key.isKeyCode (KeyPress::downKey))      return target.moveCaretDown (isShiftDown);
+
+            if (key.isKeyCode (KeyPress::pageUpKey))    return target.pageUp   (isShiftDown);
+            if (key.isKeyCode (KeyPress::pageDownKey))  return target.pageDown (isShiftDown);
+        }
+
+        if (numCtrlAltCommandKeys < 2)
+        {
+            if (key.isKeyCode (KeyPress::backspaceKey)) return target.deleteBackwards (ctrlOrAltDown);
+            if (key.isKeyCode (KeyPress::deleteKey))    return target.deleteForwards  (ctrlOrAltDown);
+        }
+
+        if (key == KeyPress ('c', ModifierKeys::commandModifier, 0)
+              || key == KeyPress (KeyPress::insertKey, ModifierKeys::ctrlModifier, 0))
+            return target.copyToClipboard();
+
+        if (key == KeyPress ('x', ModifierKeys::commandModifier, 0)
+              || key == KeyPress (KeyPress::deleteKey, ModifierKeys::shiftModifier, 0))
+            return target.cutToClipboard();
+
+        if (key == KeyPress ('v', ModifierKeys::commandModifier, 0)
+              || key == KeyPress (KeyPress::insertKey, ModifierKeys::shiftModifier, 0))
+            return target.pasteFromClipboard();
+
+        if (key == KeyPress ('a', ModifierKeys::commandModifier, 0))
+            return target.selectAll();
+
+        if (key == KeyPress ('z', ModifierKeys::commandModifier, 0))
+            return target.undo();
+
+        if (key == KeyPress ('y', ModifierKeys::commandModifier, 0)
+             || key == KeyPress ('z', ModifierKeys::commandModifier | ModifierKeys::shiftModifier, 0))
+            return target.redo();
+
+        return false;
+    }
+};
+
+
+#endif   // JUCE_TEXTEDITORKEYMAPPER_H_INCLUDED