mirror of
https://github.com/kasmtech/KasmVNC.git
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139 lines
4.1 KiB
C++
139 lines
4.1 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#include <tchar.h>
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#include <rfb_win32/MonitorInfo.h>
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#include <rfb_win32/Win32Util.h>
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#include <rdr/Exception.h>
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#include <rfb/LogWriter.h>
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#ifndef min
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#define min(a,b) ((a)<(b)?(a):(b))
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#endif
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#ifndef max
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#define max(a,b) ((a)>(b)?(a):(b))
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#endif
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using namespace rfb;
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using namespace win32;
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static LogWriter vlog("MonitorInfo");
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static void fillMonitorInfo(HMONITOR monitor, MonitorInfo* mi) {
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vlog.debug("monitor=%p", monitor);
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memset(mi, 0, sizeof(MONITORINFOEXA));
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mi->cbSize = sizeof(MONITORINFOEXA);
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if (!GetMonitorInfo(monitor, mi))
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throw rdr::SystemException("failed to GetMonitorInfo", GetLastError());
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vlog.debug("monitor is %ld,%ld-%ld,%ld", mi->rcMonitor.left, mi->rcMonitor.top, mi->rcMonitor.right, mi->rcMonitor.bottom);
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vlog.debug("work area is %ld,%ld-%ld,%ld", mi->rcWork.left, mi->rcWork.top, mi->rcWork.right, mi->rcWork.bottom);
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vlog.debug("device is \"%s\"", mi->szDevice);
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}
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MonitorInfo::MonitorInfo(HWND window) {
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cbSize = sizeof(MonitorInfo);
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szDevice[0] = 0;
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HMONITOR monitor = MonitorFromWindow(window, MONITOR_DEFAULTTONEAREST);
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if (!monitor)
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throw rdr::SystemException("failed to get monitor", GetLastError());
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fillMonitorInfo(monitor, this);
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}
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MonitorInfo::MonitorInfo(const RECT& r) {
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cbSize = sizeof(MonitorInfo);
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szDevice[0] = 0;
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HMONITOR monitor = MonitorFromRect(&r, MONITOR_DEFAULTTONEAREST);
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if (!monitor)
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throw rdr::SystemException("failed to get monitor", GetLastError());
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fillMonitorInfo(monitor, this);
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}
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struct monitorByNameData {
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MonitorInfo* info;
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const char* monitorName;
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};
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static BOOL CALLBACK monitorByNameEnumProc(HMONITOR monitor,
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HDC dc,
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LPRECT pos,
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LPARAM d) {
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monitorByNameData* data = (monitorByNameData*)d;
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memset(data->info, 0, sizeof(MONITORINFOEXA));
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data->info->cbSize = sizeof(MONITORINFOEXA);
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if (GetMonitorInfo(monitor, data->info)) {
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if (stricmp(data->monitorName, data->info->szDevice) == 0)
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return FALSE;
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}
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return TRUE;
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}
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MonitorInfo::MonitorInfo(const char* devName) {
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monitorByNameData data;
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data.info = this;
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data.monitorName = devName;
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EnumDisplayMonitors(0, 0, &monitorByNameEnumProc, (LPARAM)&data);
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}
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void MonitorInfo::moveTo(HWND handle) {
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vlog.debug("moveTo monitor=%s", szDevice);
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MonitorInfo mi(handle);
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if (strcmp(szDevice, mi.szDevice) != 0) {
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centerWindow(handle, rcWork);
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clipTo(handle);
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}
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}
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void MonitorInfo::clipTo(RECT* r) {
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vlog.debug("clipTo monitor=%s", szDevice);
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if (r->top < rcWork.top) {
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r->bottom += rcWork.top - r->top; r->top = rcWork.top;
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}
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if (r->left < rcWork.left) {
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r->right += rcWork.left - r->left; r->left = rcWork.left;
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}
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if (r->bottom > rcWork.bottom) {
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r->top += rcWork.bottom - r->bottom; r->bottom = rcWork.bottom;
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}
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if (r->right > rcWork.right) {
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r->left += rcWork.right - r->right; r->right = rcWork.right;
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}
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r->left = max(r->left, rcWork.left);
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r->right = min(r->right, rcWork.right);
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r->top = max(r->top, rcWork.top);
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r->bottom = min(r->bottom, rcWork.bottom);
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}
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void MonitorInfo::clipTo(HWND handle) {
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RECT r;
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GetWindowRect(handle, &r);
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clipTo(&r);
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SetWindowPos(handle, 0, r.left, r.top, r.right-r.left, r.bottom-r.top,
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SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOOWNERZORDER);
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}
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