171 lines
3.6 KiB
C++
171 lines
3.6 KiB
C++
#include "CMSWindowsScreen.h"
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#include "CThread.h"
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#include "CLock.h"
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#include "TMethodJob.h"
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#include "CLog.h"
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#include "CString.h"
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#include <string.h>
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#include <assert.h>
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//
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// CMSWindowsScreen
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//
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HINSTANCE CMSWindowsScreen::s_instance = NULL;
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CMSWindowsScreen* CMSWindowsScreen::s_screen = NULL;
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CMSWindowsScreen::CMSWindowsScreen() :
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m_class(0),
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m_cursor(NULL),
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m_w(0), m_h(0),
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m_thread(0)
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{
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assert(s_screen == NULL);
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s_screen = this;
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}
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CMSWindowsScreen::~CMSWindowsScreen()
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{
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assert(m_class == 0);
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s_screen = NULL;
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}
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void CMSWindowsScreen::init(HINSTANCE instance)
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{
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s_instance = instance;
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}
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void CMSWindowsScreen::doRun()
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{
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// save thread id for posting quit message
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m_thread = GetCurrentThreadId();
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// event loop
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for (;;) {
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// wait for and get the next event
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MSG msg;
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getEvent(&msg);
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// handle quit message
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if (msg.message == WM_QUIT) {
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break;
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}
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// dispatch message
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if (!onPreTranslate(&msg)) {
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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}
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}
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void CMSWindowsScreen::doStop()
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{
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PostThreadMessage(m_thread, WM_QUIT, 0, 0);
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}
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void CMSWindowsScreen::openDisplay()
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{
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assert(s_instance != NULL);
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assert(m_class == 0);
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// create a transparent cursor
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int cw = GetSystemMetrics(SM_CXCURSOR);
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int ch = GetSystemMetrics(SM_CYCURSOR);
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UInt8* cursorAND = new UInt8[ch * ((cw + 31) >> 2)];
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UInt8* cursorXOR = new UInt8[ch * ((cw + 31) >> 2)];
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memset(cursorAND, 0xff, ch * ((cw + 31) >> 2));
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memset(cursorXOR, 0x00, ch * ((cw + 31) >> 2));
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m_cursor = CreateCursor(s_instance, 0, 0, cw, ch, cursorAND, cursorXOR);
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delete[] cursorXOR;
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delete[] cursorAND;
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// register a window class
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WNDCLASSEX classInfo;
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classInfo.cbSize = sizeof(classInfo);
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classInfo.style = CS_DBLCLKS | CS_NOCLOSE;
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classInfo.lpfnWndProc = &CMSWindowsScreen::wndProc;
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classInfo.cbClsExtra = 0;
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classInfo.cbWndExtra = 0;
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classInfo.hInstance = s_instance;
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classInfo.hIcon = NULL;
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classInfo.hCursor = m_cursor;
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classInfo.hbrBackground = NULL;
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classInfo.lpszMenuName = NULL;
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classInfo.lpszClassName = "Synergy";
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classInfo.hIconSm = NULL;
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m_class = RegisterClassEx(&classInfo);
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// get screen size
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// FIXME -- should handle multiple screens
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m_w = GetSystemMetrics(SM_CXSCREEN);
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m_h = GetSystemMetrics(SM_CYSCREEN);
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log((CLOG_INFO "display size: %dx%d", m_w, m_h));
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// let subclass prep display
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onOpenDisplay();
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}
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void CMSWindowsScreen::closeDisplay()
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{
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assert(s_instance != NULL);
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assert(m_class != 0);
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// let subclass close down display
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onCloseDisplay();
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// unregister the window class
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UnregisterClass((LPCTSTR)m_class, s_instance);
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m_class = 0;
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// delete resources
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DestroyCursor(m_cursor);
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m_cursor = NULL;
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log((CLOG_DEBUG "closed display"));
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}
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HINSTANCE CMSWindowsScreen::getInstance()
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{
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return s_instance;
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}
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ATOM CMSWindowsScreen::getClass() const
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{
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return m_class;
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}
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void CMSWindowsScreen::updateScreenSize()
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{
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m_w = GetSystemMetrics(SM_CXSCREEN);
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m_h = GetSystemMetrics(SM_CYSCREEN);
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log((CLOG_INFO "display resize: %dx%d", m_w, m_h));
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}
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void CMSWindowsScreen::getScreenSize(
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SInt32* w, SInt32* h) const
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{
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assert(m_class != 0);
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assert(w != NULL && h != NULL);
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*w = m_w;
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*h = m_h;
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}
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void CMSWindowsScreen::getEvent(MSG* msg) const
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{
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// wait for an event in a cancellable way
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while (HIWORD(GetQueueStatus(QS_ALLINPUT)) == 0) {
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CThread::sleep(0.05);
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}
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GetMessage(msg, NULL, 0, 0);
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}
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LRESULT CALLBACK CMSWindowsScreen::wndProc(
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HWND hwnd, UINT msg,
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WPARAM wParam, LPARAM lParam)
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{
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assert(s_screen != NULL);
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return s_screen->onEvent(hwnd, msg, wParam, lParam);
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}
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