mirror of
https://github.com/aseprite/aseprite.git
synced 2024-10-06 23:09:58 +00:00
498 lines
13 KiB
C++
498 lines
13 KiB
C++
// Aseprite UI Library
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// Copyright (C) 2001-2016 David Capello
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//
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// This file is released under the terms of the MIT license.
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// Read LICENSE.txt for more information.
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "ui/accelerator.h"
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#include "base/debug.h"
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#include "base/replace_string.h"
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#include "base/split_string.h"
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#include "base/string.h"
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#include "base/unique_ptr.h"
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#include <cctype>
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#include <cstdlib>
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#include <string>
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#include <vector>
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#include <algorithm>
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// #define REPORT_KEYS
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#define PREPROCESS_KEYS
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namespace ui {
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#ifdef _WIN32
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const char* kWinKeyName = "Win";
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#else
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const char* kWinKeyName = "Super";
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#endif
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static KeyModifiers get_pressed_modifiers_from_she()
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{
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KeyModifiers mods = kKeyNoneModifier;
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if (she::is_key_pressed(kKeyLShift) ) mods = KeyModifiers(int(mods) | int(kKeyShiftModifier));
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if (she::is_key_pressed(kKeyRShift) ) mods = KeyModifiers(int(mods) | int(kKeyShiftModifier));
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if (she::is_key_pressed(kKeyLControl)) mods = KeyModifiers(int(mods) | int(kKeyCtrlModifier));
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if (she::is_key_pressed(kKeyRControl)) mods = KeyModifiers(int(mods) | int(kKeyCtrlModifier));
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if (she::is_key_pressed(kKeyAlt) ) mods = KeyModifiers(int(mods) | int(kKeyAltModifier));
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if (she::is_key_pressed(kKeyCommand) ) mods = KeyModifiers(int(mods) | int(kKeyCmdModifier));
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if (she::is_key_pressed(kKeyLWin) ) mods = KeyModifiers(int(mods) | int(kKeyWinModifier));
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if (she::is_key_pressed(kKeyRWin) ) mods = KeyModifiers(int(mods) | int(kKeyWinModifier));
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return mods;
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}
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Accelerator::Accelerator()
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: m_modifiers(kKeyNoneModifier)
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, m_scancode(kKeyNil)
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, m_unicodeChar(0)
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{
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}
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Accelerator::Accelerator(KeyModifiers modifiers, KeyScancode scancode, int unicodeChar)
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: m_modifiers(modifiers)
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, m_scancode(scancode)
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, m_unicodeChar(unicodeChar)
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{
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}
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Accelerator::Accelerator(const std::string& str)
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: m_modifiers(kKeyNoneModifier)
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, m_scancode(kKeyNil)
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, m_unicodeChar(0)
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{
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// Special case: plus sign
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if (str == "+") {
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m_unicodeChar = '+';
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return;
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}
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std::size_t i, j;
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for (i=0; i<str.size(); i=j+1) {
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// i+1 because the first character can be '+' sign
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for (j=i+1; j<str.size() && str[j] != '+'; ++j)
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;
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std::string tok = base::string_to_lower(str.substr(i, j - i));
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if (m_scancode == kKeySpace) {
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m_modifiers = (KeyModifiers)((int)m_modifiers | (int)kKeySpaceModifier);
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m_scancode = kKeyNil;
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}
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// Modifiers
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if (tok == "shift") {
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m_modifiers = (KeyModifiers)((int)m_modifiers | (int)kKeyShiftModifier);
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}
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else if (tok == "alt") {
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m_modifiers = (KeyModifiers)((int)m_modifiers | (int)kKeyAltModifier);
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}
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else if (tok == "ctrl") {
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m_modifiers = (KeyModifiers)((int)m_modifiers | (int)kKeyCtrlModifier);
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}
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else if (tok == "cmd") {
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m_modifiers = (KeyModifiers)((int)m_modifiers | (int)kKeyCmdModifier);
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}
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else if (tok == base::string_to_lower(kWinKeyName)) {
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m_modifiers = (KeyModifiers)((int)m_modifiers | (int)kKeyWinModifier);
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}
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// Scancode
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// Word with one character
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else if (base::utf8_length(tok) == 1) {
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std::wstring wstr = base::from_utf8(tok);
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if (wstr.size() != 1) {
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ASSERT(false && "Something wrong converting utf-8 to wchar string");
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continue;
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}
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wchar_t wchr = wstr[0];
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wchr = tolower(wchr);
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if ((wchr >= 'a') && (wchr <= 'z')) {
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m_unicodeChar = wchr;
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m_scancode = (KeyScancode)((int)kKeyA + wchr - 'a');
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}
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else {
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m_unicodeChar = wchr;
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if ((wchr >= '0') && (wchr <= '9'))
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m_scancode = (KeyScancode)((int)kKey0 + wchr - '0');
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else {
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switch (wchr) {
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case '~': m_scancode = kKeyTilde; break;
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case '-': m_scancode = kKeyMinus; break;
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case '=': m_scancode = kKeyEquals; break;
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case '[': m_scancode = kKeyOpenbrace; break;
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case ']': m_scancode = kKeyClosebrace; break;
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case ';': m_scancode = kKeyColon; break;
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case '\'': m_scancode = kKeyQuote; break;
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case '\\': m_scancode = kKeyBackslash; break;
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case ',': m_scancode = kKeyComma; break;
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case '.': m_scancode = kKeyStop; break;
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case '/': m_scancode = kKeySlash; break;
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case '*': m_scancode = kKeyAsterisk; break;
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}
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}
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}
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}
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// Other ones
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else {
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// F1, F2, ..., F11, F12
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if (tok[0] == 'f' && (tok.size() <= 3)) {
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int num = std::strtol(tok.c_str()+1, NULL, 10);
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if ((num >= 1) && (num <= 12))
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m_scancode = (KeyScancode)((int)kKeyF1 + num - 1);
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}
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else if ((tok == "escape") || (tok == "esc"))
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m_scancode = kKeyEsc;
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else if (tok == "backspace")
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m_scancode = kKeyBackspace;
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else if (tok == "tab")
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m_scancode = kKeyTab;
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else if (tok == "enter")
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m_scancode = kKeyEnter;
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else if (tok == "space")
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m_scancode = kKeySpace;
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else if ((tok == "insert") || (tok == "ins"))
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m_scancode = kKeyInsert;
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else if ((tok == "delete") || (tok == "del"))
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m_scancode = kKeyDel;
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else if (tok == "home")
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m_scancode = kKeyHome;
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else if (tok == "end")
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m_scancode = kKeyEnd;
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else if ((tok == "page up") || (tok == "pgup"))
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m_scancode = kKeyPageUp;
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else if ((tok == "page down") || (tok == "pgdn"))
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m_scancode = kKeyPageDown;
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else if (tok == "left")
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m_scancode = kKeyLeft;
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else if (tok == "right")
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m_scancode = kKeyRight;
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else if (tok == "up")
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m_scancode = kKeyUp;
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else if (tok == "down")
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m_scancode = kKeyDown;
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else if (tok == "0 pad")
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m_scancode = kKey0Pad;
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else if (tok == "1 pad")
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m_scancode = kKey1Pad;
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else if (tok == "2 pad")
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m_scancode = kKey2Pad;
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else if (tok == "3 pad")
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m_scancode = kKey3Pad;
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else if (tok == "4 pad")
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m_scancode = kKey4Pad;
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else if (tok == "5 pad")
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m_scancode = kKey5Pad;
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else if (tok == "6 pad")
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m_scancode = kKey6Pad;
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else if (tok == "7 pad")
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m_scancode = kKey7Pad;
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else if (tok == "8 pad")
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m_scancode = kKey8Pad;
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else if (tok == "9 pad")
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m_scancode = kKey9Pad;
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else if (tok == "/ pad" || tok == "slash pad")
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m_scancode = kKeySlashPad;
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else if (tok == "* pad" || tok == "asterisk pad" || tok == "asterisk")
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m_scancode = kKeyAsterisk;
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else if (tok == "- pad" || tok == "minus pad")
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m_scancode = kKeyMinusPad;
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else if (tok == "+ pad" || tok == "plus pad")
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m_scancode = kKeyPlusPad;
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else if (tok == "del pad" || tok == "delete pad")
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m_scancode = kKeyDelPad;
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else if (tok == "enter pad")
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m_scancode = kKeyEnterPad;
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}
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}
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}
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bool Accelerator::operator==(const Accelerator& other) const
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{
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if (m_modifiers != other.m_modifiers)
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return false;
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if (m_scancode == other.m_scancode) {
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if (m_scancode != kKeyNil)
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return true;
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else if (m_unicodeChar != 0)
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return (std::tolower(m_unicodeChar) == std::tolower(other.m_unicodeChar));
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else // Only comparing modifiers, and they are equal
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return true;
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}
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return false;
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}
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bool Accelerator::isEmpty() const
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{
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return
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(m_modifiers == kKeyNoneModifier &&
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m_scancode == kKeyNil &&
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m_unicodeChar == 0);
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}
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std::string Accelerator::toString() const
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{
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// Same order that she::KeyScancode
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static const char* table[] = {
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NULL,
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"A",
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"B",
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"C",
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"D",
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"E",
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"F",
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"G",
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"H",
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"I",
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"J",
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"K",
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"L",
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"M",
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"N",
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"O",
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"P",
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"Q",
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"R",
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"S",
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"T",
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"U",
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"V",
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"W",
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"X",
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"Y",
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"Z",
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"0",
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"1",
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"2",
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"3",
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"4",
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"5",
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"6",
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"7",
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"8",
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"9",
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"0 Pad",
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"1 Pad",
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"2 Pad",
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"3 Pad",
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"4 Pad",
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"5 Pad",
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"6 Pad",
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"7 Pad",
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"8 Pad",
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"9 Pad",
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"F1",
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"F2",
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"F3",
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"F4",
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"F5",
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"F6",
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"F7",
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"F8",
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"F9",
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"F10",
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"F11",
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"F12",
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"Esc",
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"~",
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"-",
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"=",
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"Backspace",
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"Tab",
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"[",
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"]",
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"Enter",
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";",
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"\'",
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"\\",
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"KEY_BACKSLASH2",
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",",
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".",
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"/",
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"Space",
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"Ins",
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"Del",
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"Home",
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"End",
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"PgUp",
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"PgDn",
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"Left",
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"Right",
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"Up",
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"Down",
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"/ Pad",
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"* Pad",
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"- Pad",
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"+ Pad",
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"Del Pad",
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"Enter Pad",
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"PrtScr",
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"Pause",
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"KEY_ABNT_C1",
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"Yen",
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"Kana",
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"KEY_CONVERT",
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"KEY_NOCONVERT",
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"KEY_AT",
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"KEY_CIRCUMFLEX",
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"KEY_COLON2",
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"Kanji",
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};
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static std::size_t table_size = sizeof(table) / sizeof(table[0]);
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std::string buf;
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// Shifts
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if (m_modifiers & kKeyCtrlModifier) buf += "Ctrl+";
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if (m_modifiers & kKeyCmdModifier) buf += "Cmd+";
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if (m_modifiers & kKeyAltModifier) buf += "Alt+";
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if (m_modifiers & kKeyShiftModifier) buf += "Shift+";
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if (m_modifiers & kKeySpaceModifier) buf += "Space+";
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if (m_modifiers & kKeyWinModifier) {
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buf += kWinKeyName;
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buf += "+";
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}
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// Key
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if (m_unicodeChar) {
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std::wstring wideUnicodeChar;
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wideUnicodeChar.push_back((wchar_t)toupper(m_unicodeChar));
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buf += base::to_utf8(wideUnicodeChar);
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}
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else if (m_scancode && m_scancode > 0 && m_scancode < (int)table_size)
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buf += table[m_scancode];
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else if (!buf.empty() && buf[buf.size()-1] == '+')
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buf.erase(buf.size()-1);
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return buf;
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}
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bool Accelerator::isPressed(KeyModifiers modifiers, KeyScancode scancode, int unicodeChar) const
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{
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// Preprocess the character to be compared with the accelerator
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#ifdef PREPROCESS_KEYS
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// Directly scancode
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if ((scancode >= kKeyF1 && scancode <= kKeyF12) ||
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(scancode == kKeyEsc) ||
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(scancode == kKeyBackspace) ||
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(scancode == kKeyTab) ||
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(scancode == kKeyEnter) ||
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(scancode == kKeyBackslash) ||
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(scancode == kKeyBackslash2) ||
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(scancode >= kKeySpace && scancode <= kKeyDown) ||
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(scancode >= kKeyEnterPad && scancode <= kKeyNoconvert) ||
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(scancode == kKeyKanji)) {
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unicodeChar = 0;
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}
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// For Ctrl+number
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/* scancode unicodeChar
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Ctrl+0 27 0
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Ctrl+1 28 2
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Ctrl+2 29 0
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Ctrl+3 30 27
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Ctrl+4 31 28
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Ctrl+5 32 29
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Ctrl+6 33 30
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Ctrl+7 34 31
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Ctrl+8 35 127
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Ctrl+9 36 2
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*/
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else if ((scancode >= kKey0 && scancode <= kKey9) &&
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(unicodeChar < 32 || unicodeChar == 127)) {
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unicodeChar = '0' + scancode - kKey0;
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scancode = kKeyNil;
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}
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// For Ctrl+letter
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else if (unicodeChar >= 1 && unicodeChar <= 'z'-'a'+1) {
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unicodeChar = 'a'+unicodeChar-1;
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scancode = kKeyNil;
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}
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// For any other legal Unicode code
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else if (unicodeChar >= ' ') {
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unicodeChar = std::tolower(unicodeChar);
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/* without shift (because characters like '*' can be trigger with
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"Shift+8", so we don't want "Shift+*") */
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if (!(unicodeChar >= 'a' && unicodeChar <= 'z'))
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modifiers = (KeyModifiers)((int)modifiers & ((int)~kKeyShiftModifier));
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scancode = kKeyNil;
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}
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#endif
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#ifdef REPORT_KEYS
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printf("%3d==%3d %3d==%3d %s==%s ",
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m_scancode, scancode,
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m_unicodeChar, unicodeChar,
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toString().c_str(),
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Accelerator(modifiers, scancode, unicodeChar).toString().c_str());
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#endif
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if ((m_modifiers == modifiers) &&
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((m_scancode != kKeyNil && m_scancode == scancode) ||
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(m_unicodeChar && m_unicodeChar == unicodeChar) ||
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(m_scancode == kKeyNil && scancode == kKeyNil && !m_unicodeChar && !unicodeChar))) {
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#ifdef REPORT_KEYS
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printf("true\n");
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fflush(stdout);
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#endif
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return true;
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}
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#ifdef REPORT_KEYS
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printf("false\n");
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fflush(stdout);
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#endif
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return false;
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}
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bool Accelerator::isPressed() const
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{
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KeyModifiers modifiers = get_pressed_modifiers_from_she();
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return ((m_scancode == 0 || she::is_key_pressed(m_scancode)) &&
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(m_modifiers == modifiers));
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}
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bool Accelerator::isLooselyPressed() const
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{
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KeyModifiers modifiers = get_pressed_modifiers_from_she();
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return ((m_scancode == 0 || she::is_key_pressed(m_scancode)) &&
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(int(m_modifiers & modifiers) == m_modifiers));
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}
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//////////////////////////////////////////////////////////////////////
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// Accelerators
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bool Accelerators::has(const Accelerator& accel) const
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{
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return (std::find(begin(), end(), accel) != end());
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}
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void Accelerators::add(const Accelerator& accel)
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{
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if (!has(accel))
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m_list.push_back(accel);
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}
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void Accelerators::remove(const Accelerator& accel)
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{
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auto it = std::find(begin(), end(), accel);
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if (it != end())
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m_list.erase(it);
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}
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} // namespace ui
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