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00099390da
This change adds support to write text with dead keys, and assign keyboard shortcuts to special key combinations with Unicode characters on macOS and Windows. Fix #1083, close #796
85 lines
1.8 KiB
C++
85 lines
1.8 KiB
C++
// SHE library
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// Copyright (C) 2012-2016 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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#ifndef SHE_WIN_EVENT_QUEUE_INCLUDED
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#define SHE_WIN_EVENT_QUEUE_INCLUDED
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#pragma once
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#include <queue>
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#include <windows.h>
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#include "she/event.h"
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#include "she/event_queue.h"
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namespace she {
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class WinEventQueue : public EventQueue {
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public:
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WinEventQueue() : m_translateDeadKeys(false) {
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}
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void getEvent(Event& ev, bool canWait) override {
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MSG msg;
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while (m_events.empty()) {
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BOOL res;
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if (canWait) {
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ASSERT(false); // Not yet supported
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res = GetMessage(&msg, nullptr, 0, 0);
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}
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else {
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res = PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE);
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}
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if (res) {
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// Avoid transforming WM_KEYDOWN/UP into WM_DEADCHAR/WM_CHAR
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// messages when m_translateDeadKeys is disabled.
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//
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// From MSDN TranslateMessage() documentation:
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// "WM_KEYDOWN and WM_KEYUP combinations produce a WM_CHAR
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// or WM_DEADCHAR message."
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// https://msdn.microsoft.com/en-us/library/windows/desktop/ms644955.aspx
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if ((m_translateDeadKeys) ||
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(msg.message != WM_KEYDOWN &&
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msg.message != WM_KEYUP)) {
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TranslateMessage(&msg);
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}
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DispatchMessage(&msg);
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}
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else if (!canWait)
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break;
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}
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if (m_events.empty()) {
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ev.setType(Event::None);
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}
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else {
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ev = m_events.front();
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m_events.pop();
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}
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}
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void queueEvent(const Event& ev) override {
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m_events.push(ev);
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}
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void setTranslateDeadKeys(bool state) {
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m_translateDeadKeys = state;
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}
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private:
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std::queue<Event> m_events;
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bool m_translateDeadKeys;
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};
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typedef WinEventQueue EventQueueImpl;
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} // namespace she
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#endif
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