290 lines
11 KiB
C++
290 lines
11 KiB
C++
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2020 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 6 End-User License
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Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
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End User License Agreement: www.juce.com/juce-6-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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KeyPress::KeyPress (int code, ModifierKeys m, juce_wchar textChar) noexcept
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: keyCode (code), mods (m), textCharacter (textChar)
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{
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}
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KeyPress::KeyPress (const int code) noexcept : keyCode (code)
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{
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}
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bool KeyPress::operator== (int otherKeyCode) const noexcept
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{
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return keyCode == otherKeyCode && ! mods.isAnyModifierKeyDown();
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}
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bool KeyPress::operator== (const KeyPress& other) const noexcept
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{
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return mods.getRawFlags() == other.mods.getRawFlags()
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&& (textCharacter == other.textCharacter
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|| textCharacter == 0
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|| other.textCharacter == 0)
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&& (keyCode == other.keyCode
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|| (keyCode < 256
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&& other.keyCode < 256
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&& CharacterFunctions::toLowerCase ((juce_wchar) keyCode)
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== CharacterFunctions::toLowerCase ((juce_wchar) other.keyCode)));
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}
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bool KeyPress::operator!= (const KeyPress& other) const noexcept { return ! operator== (other); }
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bool KeyPress::operator!= (int otherKeyCode) const noexcept { return ! operator== (otherKeyCode); }
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bool KeyPress::isCurrentlyDown() const
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{
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return isKeyCurrentlyDown (keyCode)
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&& (ModifierKeys::currentModifiers.getRawFlags() & ModifierKeys::allKeyboardModifiers)
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== (mods.getRawFlags() & ModifierKeys::allKeyboardModifiers);
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}
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//==============================================================================
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namespace KeyPressHelpers
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{
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struct KeyNameAndCode
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{
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const char* name;
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int code;
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};
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const KeyNameAndCode translations[] =
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{
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{ "spacebar", KeyPress::spaceKey },
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{ "return", KeyPress::returnKey },
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{ "escape", KeyPress::escapeKey },
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{ "backspace", KeyPress::backspaceKey },
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{ "cursor left", KeyPress::leftKey },
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{ "cursor right", KeyPress::rightKey },
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{ "cursor up", KeyPress::upKey },
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{ "cursor down", KeyPress::downKey },
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{ "page up", KeyPress::pageUpKey },
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{ "page down", KeyPress::pageDownKey },
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{ "home", KeyPress::homeKey },
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{ "end", KeyPress::endKey },
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{ "delete", KeyPress::deleteKey },
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{ "insert", KeyPress::insertKey },
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{ "tab", KeyPress::tabKey },
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{ "play", KeyPress::playKey },
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{ "stop", KeyPress::stopKey },
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{ "fast forward", KeyPress::fastForwardKey },
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{ "rewind", KeyPress::rewindKey }
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};
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struct ModifierDescription
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{
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const char* name;
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int flag;
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};
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static const ModifierDescription modifierNames[] =
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{
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{ "ctrl", ModifierKeys::ctrlModifier },
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{ "control", ModifierKeys::ctrlModifier },
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{ "ctl", ModifierKeys::ctrlModifier },
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{ "shift", ModifierKeys::shiftModifier },
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{ "shft", ModifierKeys::shiftModifier },
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{ "alt", ModifierKeys::altModifier },
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{ "option", ModifierKeys::altModifier },
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{ "command", ModifierKeys::commandModifier },
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{ "cmd", ModifierKeys::commandModifier }
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};
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static const char* numberPadPrefix() noexcept { return "numpad "; }
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static int getNumpadKeyCode (const String& desc)
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{
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if (desc.containsIgnoreCase (numberPadPrefix()))
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{
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auto lastChar = desc.trimEnd().getLastCharacter();
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switch (lastChar)
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{
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case '0': case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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return (int) (KeyPress::numberPad0 + (int) lastChar - '0');
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case '+': return KeyPress::numberPadAdd;
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case '-': return KeyPress::numberPadSubtract;
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case '*': return KeyPress::numberPadMultiply;
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case '/': return KeyPress::numberPadDivide;
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case '.': return KeyPress::numberPadDecimalPoint;
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case '=': return KeyPress::numberPadEquals;
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default: break;
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}
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if (desc.endsWith ("separator")) return KeyPress::numberPadSeparator;
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if (desc.endsWith ("delete")) return KeyPress::numberPadDelete;
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}
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return 0;
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}
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#if JUCE_MAC || JUCE_IOS
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struct OSXSymbolReplacement
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{
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const char* text;
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juce_wchar symbol;
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};
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const OSXSymbolReplacement osxSymbols[] =
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{
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{ "shift + ", 0x21e7 },
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{ "command + ", 0x2318 },
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{ "option + ", 0x2325 },
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{ "ctrl + ", 0x2303 },
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{ "return", 0x21b5 },
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{ "cursor left", 0x2190 },
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{ "cursor right", 0x2192 },
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{ "cursor up", 0x2191 },
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{ "cursor down", 0x2193 },
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{ "backspace", 0x232b },
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{ "delete", 0x2326 },
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{ "spacebar", 0x2423 }
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};
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#endif
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}
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//==============================================================================
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KeyPress KeyPress::createFromDescription (const String& desc)
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{
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int modifiers = 0;
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for (int i = 0; i < numElementsInArray (KeyPressHelpers::modifierNames); ++i)
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if (desc.containsWholeWordIgnoreCase (KeyPressHelpers::modifierNames[i].name))
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modifiers |= KeyPressHelpers::modifierNames[i].flag;
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int key = 0;
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for (int i = 0; i < numElementsInArray (KeyPressHelpers::translations); ++i)
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{
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if (desc.containsWholeWordIgnoreCase (String (KeyPressHelpers::translations[i].name)))
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{
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key = KeyPressHelpers::translations[i].code;
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break;
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}
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}
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if (key == 0)
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key = KeyPressHelpers::getNumpadKeyCode (desc);
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if (key == 0)
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{
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// see if it's a function key..
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if (! desc.containsChar ('#')) // avoid mistaking hex-codes like "#f1"
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{
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for (int i = 1; i <= 35; ++i)
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{
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if (desc.containsWholeWordIgnoreCase ("f" + String (i)))
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{
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if (i <= 16) key = F1Key + i - 1;
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else if (i <= 24) key = F17Key + i - 17;
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else if (i <= 35) key = F25Key + i - 25;
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}
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}
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}
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if (key == 0)
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{
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// give up and use the hex code..
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auto hexCode = desc.fromFirstOccurrenceOf ("#", false, false)
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.retainCharacters ("0123456789abcdefABCDEF")
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.getHexValue32();
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if (hexCode > 0)
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key = hexCode;
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else
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key = (int) CharacterFunctions::toUpperCase (desc.getLastCharacter());
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}
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}
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return KeyPress (key, ModifierKeys (modifiers), 0);
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}
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String KeyPress::getTextDescription() const
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{
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String desc;
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if (keyCode > 0)
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{
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// some keyboard layouts use a shift-key to get the slash, but in those cases, we
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// want to store it as being a slash, not shift+whatever.
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if (textCharacter == '/' && keyCode != numberPadDivide)
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return "/";
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if (mods.isCtrlDown()) desc << "ctrl + ";
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if (mods.isShiftDown()) desc << "shift + ";
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#if JUCE_MAC || JUCE_IOS
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if (mods.isAltDown()) desc << "option + ";
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if (mods.isCommandDown()) desc << "command + ";
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#else
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if (mods.isAltDown()) desc << "alt + ";
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#endif
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for (int i = 0; i < numElementsInArray (KeyPressHelpers::translations); ++i)
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if (keyCode == KeyPressHelpers::translations[i].code)
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return desc + KeyPressHelpers::translations[i].name;
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// not all F keys have consecutive key codes on all platforms
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if (keyCode >= F1Key && keyCode <= F16Key) desc << 'F' << (1 + keyCode - F1Key);
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else if (keyCode >= F17Key && keyCode <= F24Key) desc << 'F' << (17 + keyCode - F17Key);
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else if (keyCode >= F25Key && keyCode <= F35Key) desc << 'F' << (25 + keyCode - F25Key);
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else if (keyCode >= numberPad0 && keyCode <= numberPad9) desc << KeyPressHelpers::numberPadPrefix() << (keyCode - numberPad0);
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else if (keyCode >= 33 && keyCode < 176) desc += CharacterFunctions::toUpperCase ((juce_wchar) keyCode);
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else if (keyCode == numberPadAdd) desc << KeyPressHelpers::numberPadPrefix() << '+';
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else if (keyCode == numberPadSubtract) desc << KeyPressHelpers::numberPadPrefix() << '-';
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else if (keyCode == numberPadMultiply) desc << KeyPressHelpers::numberPadPrefix() << '*';
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else if (keyCode == numberPadDivide) desc << KeyPressHelpers::numberPadPrefix() << '/';
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else if (keyCode == numberPadSeparator) desc << KeyPressHelpers::numberPadPrefix() << "separator";
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else if (keyCode == numberPadDecimalPoint) desc << KeyPressHelpers::numberPadPrefix() << '.';
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else if (keyCode == numberPadEquals) desc << KeyPressHelpers::numberPadPrefix() << '=';
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else if (keyCode == numberPadDelete) desc << KeyPressHelpers::numberPadPrefix() << "delete";
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else desc << '#' << String::toHexString (keyCode);
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}
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return desc;
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}
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String KeyPress::getTextDescriptionWithIcons() const
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{
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#if JUCE_MAC || JUCE_IOS
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auto s = getTextDescription();
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for (int i = 0; i < numElementsInArray (KeyPressHelpers::osxSymbols); ++i)
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s = s.replace (KeyPressHelpers::osxSymbols[i].text,
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String::charToString (KeyPressHelpers::osxSymbols[i].symbol));
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return s;
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#else
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return getTextDescription();
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#endif
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}
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} // namespace juce
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