Feature: screen preview thumbnail on host double-click
Server sends COMMAND_SCREEN_PREVIEW_REQ when user double-clicks an active (non-Locked/Inactive) host that advertises CLIENT_CAP_SCREEN_PREVIEW. Client BitBlts primary screen, encodes to JPEG via GDI+ and replies. The existing STATIC tooltip is replaced with a self-drawn CPreviewTipWnd showing the thumbnail above the host info text, with wide-character rendering so the popup also works on non-Chinese servers. - Quality tiers reuse QualityProfile pattern: PreviewProfile + 6 levels driven by GetTargetQualityLevel (FRP-aware), with 4K/ultrawide auto upscale on Ultra/High tiers up to min(screenWidth/4, 1280). - Client limits to 1 in-flight capture via atomic counter to defend against flood/DoS; Send2Server is already mutex-serialized. - Server validates responses by reqId only (single in-flight tip); 4s arrival timeout marks "preview unavailable" without blocking the text fallback path. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
yuanyuanxiang
@@ -71,6 +71,7 @@
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#include "FrpsForSubDlg.h"
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#include "PluginSettingsDlg.h"
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#include "TriggerSettingsDlg.h"
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#include "PreviewTipWnd.h"
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#include "common/key.h"
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#include "UIBranding.h"
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@@ -86,6 +87,7 @@
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#define TIMER_REFRESH_LIST 5
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#define TIMER_STATUSBAR_UPDATE 6
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#define TIMER_STATUSBAR_INIT 7
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#define TIMER_PREVIEW_ARRIVAL 8 // 屏幕预览到达超时（4 秒未收到则提示"预览不可用"）
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#define TODO_NOTICE MessageBoxL("This feature has not been implemented!\nPlease contact: 962914132@qq.com", "提示", MB_ICONINFORMATION);
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#define TINY_DLL_NAME "TinyRun.dll"
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#define FRPC_DLL_NAME "Frpc.dll"
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@@ -799,6 +801,7 @@ BEGIN_MESSAGE_MAP(CMy2015RemoteDlg, CDialogEx)
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ON_MESSAGE(WM_ASSIGN_CLIENT, AssignClient)
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ON_MESSAGE(WM_ASSIGN_ALLCLIENT, AssignAllClient)
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ON_MESSAGE(WM_UPDATE_ACTIVEWND, UpdateUserEvent)
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ON_MESSAGE(WM_PREVIEW_RESPONSE, OnPreviewResponse)
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ON_WM_HELPINFO()
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ON_COMMAND(ID_ONLINE_SHARE, &CMy2015RemoteDlg::OnOnlineShare)
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ON_COMMAND(ID_TOOL_AUTH, &CMy2015RemoteDlg::OnToolAuth)
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@@ -3039,6 +3042,12 @@ void CMy2015RemoteDlg::OnTimer(UINT_PTR nIDEvent)
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if (nIDEvent == TIMER_CLOSEWND) {
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DeletePopupWindow();
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}
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if (nIDEvent == TIMER_PREVIEW_ARRIVAL) {
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KillTimer(TIMER_PREVIEW_ARRIVAL);
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if (m_pPreviewTip && ::IsWindow(m_pPreviewTip->GetSafeHwnd())) {
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m_pPreviewTip->MarkPreviewUnavailable();
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}
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}
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if (nIDEvent == TIMER_CLEAR_BALLOON) {
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KillTimer(TIMER_CLEAR_BALLOON);
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@@ -3354,7 +3363,10 @@ void CMy2015RemoteDlg::DeletePopupWindow(BOOL bForce)
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m_pFloatingTip->DestroyWindow();
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SAFE_DELETE(m_pFloatingTip);
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m_pPreviewTip = nullptr;
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m_PreviewReqId = 0;
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KillTimer(TIMER_CLOSEWND);
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KillTimer(TIMER_PREVIEW_ARRIVAL);
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}
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@@ -5438,6 +5450,15 @@ VOID CMy2015RemoteDlg::MessageHandle(CONTEXT_OBJECT* ContextObject)
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case 137: // 心跳【L】
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g_2015RemoteDlg->PostMessageA(WM_UPDATE_ACTIVEWND, 0, (LPARAM)ContextObject);
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break;
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case TOKEN_SCREEN_PREVIEW_RSP: {
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// 屏幕预览响应：把整个包拷到堆上，转给主线程处理（IO 线程不接触 UI）
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if (len < sizeof(ScreenPreviewRspHeader)) break;
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auto* pkt = new std::vector<BYTE>(szBuffer, szBuffer + len);
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if (!g_2015RemoteDlg->PostMessageA(WM_PREVIEW_RESPONSE, 0, (LPARAM)pkt)) {
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delete pkt;
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}
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break;
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}
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case SOCKET_DLLLOADER: {// 请求DLL【L】
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auto len = ContextObject->InDeCompressedBuffer.GetBufferLength();
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bool is64Bit = len > 1 ? ContextObject->InDeCompressedBuffer.GetBYTE(1) : false;
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@@ -7558,36 +7579,141 @@ void CMy2015RemoteDlg::OnListClick(NMHDR* pNMHDR, LRESULT* pResult)
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CPoint pt;
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GetCursorPos(&pt);
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// 清理旧提示
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// 清理旧提示（DeletePopupWindow 会同时清掉 m_pPreviewTip / m_PreviewReqId / 定时器）
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DeletePopupWindow(TRUE);
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// 创建提示窗口
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m_pFloatingTip = new CWnd();
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int width = res[RES_FILE_PATH].GetLength() * 10 + 36;
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width = min(max(width, 360), 800);
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CRect rect(pt.x, pt.y, pt.x + width, pt.y + 120); // 宽度、高度
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// 屏幕预览触发条件：客户端支持能力位 + 当前活动窗口非 Locked/Inactive
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CString activeWnd = ctx->GetClientData(ONLINELIST_LOGINTIME);
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bool isIdleOrLocked =
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activeWnd.Find(_T("Locked")) == 0 || activeWnd.Find(_T("Inactive")) == 0;
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bool wantPreview = ctx->SupportsScreenPreview() && !isIdleOrLocked;
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BOOL bOk = m_pFloatingTip->CreateEx(
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WS_EX_TOPMOST | WS_EX_TOOLWINDOW | WS_EX_NOACTIVATE,
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_T("STATIC"),
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strText,
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WS_POPUP | WS_VISIBLE | WS_BORDER | SS_LEFT | SS_NOTIFY,
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rect,
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this,
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0);
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// 创建新预览浮窗
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WORD maxWidth = 480;
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BYTE jpegQ = 70;
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if (wantPreview) {
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ChooseScreenPreviewParams(ctx, maxWidth, jpegQ);
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}
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auto* tip = new CPreviewTipWnd();
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// 项目是 MBCS（CP_ACP），浮窗内部用宽字符渲染（避免跨语言系统乱码）。
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// 这里把 strText (CStringA) 按 CP_ACP 转 wide。
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CStringW textW;
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{
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int wlen = MultiByteToWideChar(CP_ACP, 0, strText.GetString(), -1, NULL, 0);
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if (wlen > 1) {
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MultiByteToWideChar(CP_ACP, 0, strText.GetString(), -1, textW.GetBufferSetLength(wlen - 1), wlen);
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textW.ReleaseBuffer(wlen - 1);
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}
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}
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BOOL bOk = tip->Create(this, pt, textW, wantPreview ? maxWidth : 0);
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if (bOk) {
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m_pFloatingTip->SetFont(GetFont());
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m_pFloatingTip->ShowWindow(SW_SHOW);
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SetTimer(TIMER_CLOSEWND, 5000, nullptr);
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m_pFloatingTip = tip;
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m_pPreviewTip = tip;
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// 整体超时：有预览 8 秒（图到达后会续命 5s），纯文本 5 秒
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SetTimer(TIMER_CLOSEWND, wantPreview ? 8000 : 5000, nullptr);
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if (wantPreview) {
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// 序号 0 视为"无效"，从 1 开始递增
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if (++m_PreviewReqId == 0) m_PreviewReqId = 1;
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tip->SetReqId(m_PreviewReqId);
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SendScreenPreviewRequest(ctx, m_PreviewReqId, maxWidth, jpegQ);
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// 4 秒未收到 → 在浮窗里标"预览不可用"
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SetTimer(TIMER_PREVIEW_ARRIVAL, 4000, nullptr);
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}
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} else {
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SAFE_DELETE(m_pFloatingTip);
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delete tip;
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}
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}
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*pResult = 0;
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}
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// 屏幕预览参数挑选：复用既有 GetTargetQualityLevel + GetScreenPreviewProfile
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// RTT 阈值表与屏幕共享共用（FRP 模式阈值更宽松）；超清档（Ultra/High）+ 4K/超宽屏
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// 时按 min(screenWidth/4, 1280) 自适应放大，避免高分屏被压成无信息缩略图
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void CMy2015RemoteDlg::ChooseScreenPreviewParams(context* ctx, WORD& maxWidth, BYTE& jpegQuality) const
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{
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int ping = 0;
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{
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CString p = ctx->GetClientData(ONLINELIST_PING);
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if (!p.IsEmpty()) ping = atoi(p.GetString());
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}
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// ping 未上报（0/缺失）→ 当中等档处理，避免误判为局域网刷过大缩略图
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int rttForLevel = ping > 0 ? ping : 250;
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int level = GetTargetQualityLevel(rttForLevel, m_settings.UsingFRPProxy ? 1 : 0);
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const PreviewProfile& prof = GetScreenPreviewProfile(level);
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int base = prof.maxWidth;
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BYTE q = (BYTE)prof.jpegQuality;
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// 4K/超宽屏自适应（仅 Ultra/High 启用，弱网档不放大保带宽）
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if (level <= QUALITY_HIGH) {
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CString resStr = ctx->GetAdditionalData(RES_RESOLUTION);
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if (!resStr.IsEmpty()) {
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int sw = 0, sh = 0;
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if (_stscanf_s(resStr, _T("%dx%d"), &sw, &sh) == 2 && sw >= 2560) {
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int adj = sw / 4;
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if (adj > 1280) adj = 1280;
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if (adj > base) base = adj;
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}
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}
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}
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maxWidth = (WORD)base;
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jpegQuality = q;
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}
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void CMy2015RemoteDlg::SendScreenPreviewRequest(context* ctx, WORD reqId, WORD maxWidth, BYTE jpegQuality)
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{
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if (!ctx) return;
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ScreenPreviewReq req;
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memset(&req, 0, sizeof(req));
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req.cmd = COMMAND_SCREEN_PREVIEW_REQ;
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req.reqId = reqId;
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req.maxWidth = maxWidth;
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req.jpegQuality = jpegQuality;
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ctx->Send2Client((PBYTE)&req, sizeof(req));
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}
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// 收到 TOKEN_SCREEN_PREVIEW_RSP（在主线程）
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// wParam: 未使用（避免依赖 WPARAM 宽度，Win32 上 32 位会截 64 位 clientID）
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// LPARAM: 指向堆分配的 std::vector<BYTE>*（含完整响应包：[Header|JPEG]），处理完必须 delete。
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// 校验思路：reqId 由对话框单调递增、每次双击重置 + 同时只有 1 个 in-flight tip，足以
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// 过滤过期/乱串响应，无需再叠加 clientID 校验。
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LRESULT CMy2015RemoteDlg::OnPreviewResponse(WPARAM /*wParam*/, LPARAM lParam)
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{
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auto* pkt = reinterpret_cast<std::vector<BYTE>*>(lParam);
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if (!pkt) return 0;
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std::unique_ptr<std::vector<BYTE>> guard(pkt);
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if (pkt->size() < sizeof(ScreenPreviewRspHeader)) return 0;
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const ScreenPreviewRspHeader* hdr = reinterpret_cast<const ScreenPreviewRspHeader*>(pkt->data());
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if (hdr->token != TOKEN_SCREEN_PREVIEW_RSP) return 0;
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// 序号校验：和当前期待的 reqId 不符 → 过期响应，丢弃
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if (m_PreviewReqId == 0 || hdr->reqId != m_PreviewReqId) return 0;
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if (!m_pPreviewTip || !::IsWindow(m_pPreviewTip->GetSafeHwnd())) return 0;
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KillTimer(TIMER_PREVIEW_ARRIVAL);
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if (hdr->status != SCREEN_PREVIEW_OK || hdr->bytes == 0 ||
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pkt->size() < sizeof(ScreenPreviewRspHeader) + hdr->bytes ||
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hdr->format != SCREEN_PREVIEW_FMT_JPEG)
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{
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m_pPreviewTip->MarkPreviewUnavailable();
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return 0;
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}
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const BYTE* jpeg = pkt->data() + sizeof(ScreenPreviewRspHeader);
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m_pPreviewTip->SetImageFromJpeg(jpeg, hdr->bytes);
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// 图到达后续命 5 秒
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KillTimer(TIMER_CLOSEWND);
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SetTimer(TIMER_CLOSEWND, 5000, nullptr);
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return 0;
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}
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void CMy2015RemoteDlg::OnOnlineUnauthorize()
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{
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@@ -230,6 +230,10 @@ public:
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VOID SendAllCommand(PBYTE szBuffer, ULONG ulLength);
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// 显示用户上线信息
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CWnd* m_pFloatingTip = nullptr;
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// 屏幕预览：m_pFloatingTip 实际是 CPreviewTipWnd 时这里有同一指针的有类型副本，
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// 用于在收到 JPEG 后调用 SetImageFromJpeg；DeletePopupWindow 释放时一并置空。
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class CPreviewTipWnd* m_pPreviewTip = nullptr;
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WORD m_PreviewReqId = 0; // 当前期待的预览响应序号；0 = 无待响应
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// 记录 clientID（心跳更新）
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std::set<uint64_t> m_DirtyClients;
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// 待处理的上线/下线事件（批量更新减少闪烁）
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@@ -434,6 +438,12 @@ public:
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afx_msg void OnWhatIsThis();
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afx_msg void OnOnlineAuthorize();
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void OnListClick(NMHDR* pNMHDR, LRESULT* pResult);
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// 屏幕预览：依 ctx 最近 RTT + 屏幕分辨率挑参数；4K/超宽屏在 LAN 档自适应放大
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void ChooseScreenPreviewParams(context* ctx, WORD& maxWidth, BYTE& jpegQuality) const;
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// 发起预览请求；reqId 应与 m_PreviewReqId 同步
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void SendScreenPreviewRequest(context* ctx, WORD reqId, WORD maxWidth, BYTE jpegQuality);
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// 收到 TOKEN_SCREEN_PREVIEW_RSP（在主线程处理）
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afx_msg LRESULT OnPreviewResponse(WPARAM wParam, LPARAM lParam);
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afx_msg void OnOnlineUnauthorize();
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afx_msg void OnToolRequestAuth();
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afx_msg LRESULT OnPasswordCheck(WPARAM wParam, LPARAM lParam);
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@@ -338,6 +338,7 @@
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<ClInclude Include="FeatureLimitsDlg.h" />
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<ClInclude Include="FrpsForSubDlg.h" />
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<ClInclude Include="PluginSettingsDlg.h" />
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<ClInclude Include="PreviewTipWnd.h" />
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<ClInclude Include="TriggerSettingsDlg.h" />
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<ClInclude Include="proxy\HPSocket.h" />
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<ClInclude Include="proxy\HPTypeDef.h" />
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@@ -388,6 +389,7 @@
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<PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">NotUsing</PrecompiledHeader>
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</ClCompile>
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<ClCompile Include="PluginSettingsDlg.cpp" />
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<ClCompile Include="PreviewTipWnd.cpp" />
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<ClCompile Include="TriggerSettingsDlg.cpp" />
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<ClCompile Include="WebService.cpp" />
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<ClCompile Include="..\..\client\MemoryModule.c">
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@@ -81,6 +81,7 @@
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<ClCompile Include="WebService.cpp" />
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<ClCompile Include="msvc_compat.c" />
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<ClCompile Include="PluginSettingsDlg.cpp" />
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<ClCompile Include="PreviewTipWnd.cpp" />
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<ClCompile Include="TriggerSettingsDlg.cpp" />
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</ItemGroup>
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<ItemGroup>
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@@ -185,6 +186,7 @@
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<ClInclude Include="WebPage.h" />
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<ClInclude Include="SimpleWebSocket.h" />
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<ClInclude Include="PluginSettingsDlg.h" />
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<ClInclude Include="PreviewTipWnd.h" />
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<ClInclude Include="TriggerSettingsDlg.h" />
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</ItemGroup>
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<ItemGroup>
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243
server/2015Remote/PreviewTipWnd.cpp
Normal file
243
server/2015Remote/PreviewTipWnd.cpp
Normal file
@@ -0,0 +1,243 @@
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// PreviewTipWnd.cpp
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#include "stdafx.h"
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#include "PreviewTipWnd.h"
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#include <objidl.h> // IUnknown / IStream — gdiplus.h 依赖它们已声明
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#include <gdiplus.h>
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#pragma comment(lib, "gdiplus.lib")
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using namespace Gdiplus;
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namespace {
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constexpr int PADDING = 8;
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constexpr int IMAGE_TEXT_GAP = 6; // 图像与下方文本之间的留白
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constexpr int MIN_TEXT_W = 360;
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constexpr int MAX_TEXT_W = 720; // 文本可换行宽度上限（垂直布局，宽度不再受图像挤压）
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constexpr int MAX_IMAGE_W = 960; // 显示上限（防止 LAN 档 1280 的 JPEG 把窗口顶到屏幕外）
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constexpr int LOADING_W = 480; // 占位的最小宽度（图像未到达时）
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constexpr int LOADING_H = 270;
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} // namespace
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BEGIN_MESSAGE_MAP(CPreviewTipWnd, CWnd)
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ON_WM_PAINT()
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ON_WM_ERASEBKGND()
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END_MESSAGE_MAP()
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CPreviewTipWnd::CPreviewTipWnd() = default;
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CPreviewTipWnd::~CPreviewTipWnd()
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{
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// m_image 通过 unique_ptr 自动释放
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}
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BOOL CPreviewTipWnd::Create(CWnd* pParent, CPoint anchor, const CStringW& text, int imageReserveW)
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{
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m_text = text;
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m_imageReserveW = imageReserveW > 0 ? min(imageReserveW, MAX_IMAGE_W) : 0;
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m_imageReserveH = m_imageReserveW > 0 ? (m_imageReserveW * 9 / 16) : 0;
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if (m_imageReserveW > 0 && m_imageReserveW < LOADING_W) {
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m_imageReserveW = LOADING_W;
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m_imageReserveH = LOADING_H;
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}
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// 创建字体（项目是 MBCS，但浮窗用宽字符；显式 LOGFONTW + W 版 API 避免编码混淆）
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LOGFONTW lf = {};
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HFONT hSysFont = (HFONT)::GetStockObject(DEFAULT_GUI_FONT);
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if (hSysFont && ::GetObjectW(hSysFont, sizeof(lf), &lf) == 0) {
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hSysFont = nullptr;
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}
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if (!hSysFont) {
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lf.lfHeight = -12;
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wcscpy_s(lf.lfFaceName, L"Microsoft YaHei");
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}
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HFONT hF = ::CreateFontIndirectW(&lf);
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if (hF) m_font.Attach(hF);
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// 注册自绘窗口类：用 MFC 的 AfxRegisterWndClass 确保和 MFC 子类化机制兼容
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LPCTSTR kClass = AfxRegisterWndClass(
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CS_SAVEBITS,
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::LoadCursor(NULL, IDC_ARROW),
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(HBRUSH)(COLOR_INFOBK + 1),
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NULL);
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// 临时尺寸；RecalcLayoutAndResize 会在创建后调整
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CRect rc(anchor.x, anchor.y, anchor.x + 400, anchor.y + 200);
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BOOL bOk = CWnd::CreateEx(
|
||||
WS_EX_TOPMOST | WS_EX_TOOLWINDOW | WS_EX_NOACTIVATE,
|
||||
kClass, _T(""),
|
||||
WS_POPUP | WS_BORDER,
|
||||
rc, pParent, 0);
|
||||
if (!bOk) return FALSE;
|
||||
|
||||
RecalcLayoutAndResize();
|
||||
|
||||
ShowWindow(SW_SHOWNOACTIVATE);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
void CPreviewTipWnd::SetImageFromJpeg(const BYTE* data, size_t bytes)
|
||||
{
|
||||
if (!data || bytes == 0) return;
|
||||
|
||||
HGLOBAL hMem = ::GlobalAlloc(GMEM_MOVEABLE, bytes);
|
||||
if (!hMem) return;
|
||||
void* p = ::GlobalLock(hMem);
|
||||
if (!p) { ::GlobalFree(hMem); return; }
|
||||
memcpy(p, data, bytes);
|
||||
::GlobalUnlock(hMem);
|
||||
|
||||
IStream* stream = nullptr;
|
||||
if (FAILED(::CreateStreamOnHGlobal(hMem, TRUE, &stream))) {
|
||||
::GlobalFree(hMem);
|
||||
return;
|
||||
}
|
||||
|
||||
std::unique_ptr<Bitmap> bmp(new Bitmap(stream, FALSE));
|
||||
stream->Release(); // CreateStreamOnHGlobal(..., TRUE) 释放 stream 时会释放 hMem
|
||||
|
||||
if (!bmp || bmp->GetLastStatus() != Ok) {
|
||||
return;
|
||||
}
|
||||
|
||||
m_image = std::move(bmp);
|
||||
m_hasImage = true;
|
||||
m_unavailable = false;
|
||||
RecalcLayoutAndResize();
|
||||
if (GetSafeHwnd()) Invalidate();
|
||||
}
|
||||
|
||||
void CPreviewTipWnd::MarkPreviewUnavailable()
|
||||
{
|
||||
if (m_hasImage) return; // 已经有图就不再覆盖
|
||||
m_unavailable = true;
|
||||
if (GetSafeHwnd()) Invalidate();
|
||||
}
|
||||
|
||||
void CPreviewTipWnd::RecalcLayoutAndResize()
|
||||
{
|
||||
HWND hWnd = GetSafeHwnd();
|
||||
if (!hWnd) return;
|
||||
|
||||
// 估算图像尺寸（先算图像，因为文本宽度要参考图像宽度对齐）
|
||||
if (m_image) {
|
||||
int iw = (int)m_image->GetWidth();
|
||||
int ih = (int)m_image->GetHeight();
|
||||
if (iw > MAX_IMAGE_W) {
|
||||
ih = (int)((double)ih * MAX_IMAGE_W / iw + 0.5);
|
||||
iw = MAX_IMAGE_W;
|
||||
}
|
||||
m_imageDrawW = iw;
|
||||
m_imageDrawH = ih;
|
||||
} else {
|
||||
m_imageDrawW = m_imageReserveW;
|
||||
m_imageDrawH = m_imageReserveH;
|
||||
}
|
||||
|
||||
// 文本换行宽度：与图像同宽（让文本视觉上对齐到图像下方），但不超过 MAX_TEXT_W
|
||||
// 没有图像时退化到 MAX_TEXT_W
|
||||
int textWrapW = m_imageDrawW > 0 ? min((int)MAX_TEXT_W, m_imageDrawW) : (int)MAX_TEXT_W;
|
||||
if (textWrapW < MIN_TEXT_W) textWrapW = MIN_TEXT_W;
|
||||
|
||||
// 估算文本尺寸（项目是 MBCS，但浮窗文本是宽字符，必须显式调用 W 版本）
|
||||
CClientDC dc(this);
|
||||
CFont* old = dc.SelectObject(&m_font);
|
||||
CRect rcText(0, 0, textWrapW, 32767);
|
||||
::DrawTextW(dc.GetSafeHdc(), m_text, m_text.GetLength(), &rcText,
|
||||
DT_CALCRECT | DT_LEFT | DT_WORDBREAK | DT_NOPREFIX);
|
||||
m_textW = max((int)MIN_TEXT_W, rcText.Width());
|
||||
if (m_imageDrawW > 0) m_textW = max(m_textW, m_imageDrawW); // 至少与图像同宽
|
||||
m_textH = rcText.Height();
|
||||
dc.SelectObject(old);
|
||||
|
||||
int contentW = max(m_imageDrawW, m_textW);
|
||||
int gap = (m_imageDrawW > 0 && m_textH > 0) ? IMAGE_TEXT_GAP : 0;
|
||||
int totalW = PADDING + contentW + PADDING;
|
||||
int totalH = PADDING + m_imageDrawH + gap + m_textH + PADDING;
|
||||
|
||||
// 当前左上角
|
||||
CRect rc;
|
||||
GetWindowRect(&rc);
|
||||
int newX = rc.left;
|
||||
int newY = rc.top;
|
||||
|
||||
// 防止越出屏幕：右下夹紧到工作区
|
||||
HMONITOR hMon = MonitorFromPoint(CPoint(newX, newY), MONITOR_DEFAULTTONEAREST);
|
||||
MONITORINFO mi = { sizeof(mi) };
|
||||
if (hMon && GetMonitorInfo(hMon, &mi)) {
|
||||
if (newX + totalW > mi.rcWork.right) newX = max((int)mi.rcWork.left, mi.rcWork.right - totalW);
|
||||
if (newY + totalH > mi.rcWork.bottom) newY = max((int)mi.rcWork.top, mi.rcWork.bottom - totalH);
|
||||
}
|
||||
|
||||
SetWindowPos(NULL, newX, newY, totalW, totalH, SWP_NOZORDER | SWP_NOACTIVATE);
|
||||
}
|
||||
|
||||
BOOL CPreviewTipWnd::OnEraseBkgnd(CDC* /*pDC*/)
|
||||
{
|
||||
return TRUE; // 在 OnPaint 里整体填充
|
||||
}
|
||||
|
||||
void CPreviewTipWnd::OnPaint()
|
||||
{
|
||||
CPaintDC pdc(this);
|
||||
CRect rcClient;
|
||||
GetClientRect(&rcClient);
|
||||
|
||||
// 双缓冲
|
||||
CDC memDC;
|
||||
memDC.CreateCompatibleDC(&pdc);
|
||||
CBitmap memBmp;
|
||||
memBmp.CreateCompatibleBitmap(&pdc, rcClient.Width(), rcClient.Height());
|
||||
CBitmap* oldBmp = memDC.SelectObject(&memBmp);
|
||||
|
||||
memDC.FillSolidRect(&rcClient, ::GetSysColor(COLOR_INFOBK));
|
||||
|
||||
CFont* oldFont = memDC.SelectObject(&m_font);
|
||||
memDC.SetTextColor(::GetSysColor(COLOR_INFOTEXT));
|
||||
memDC.SetBkMode(TRANSPARENT);
|
||||
|
||||
int curY = PADDING;
|
||||
if (m_imageDrawW > 0 && m_imageDrawH > 0) {
|
||||
CRect rcImg(PADDING, curY, PADDING + m_imageDrawW, curY + m_imageDrawH);
|
||||
DrawImageArea(memDC, rcImg);
|
||||
curY += m_imageDrawH + IMAGE_TEXT_GAP;
|
||||
}
|
||||
|
||||
CRect rcText(PADDING, curY, PADDING + m_textW, curY + m_textH);
|
||||
DrawTextArea(memDC, rcText);
|
||||
|
||||
memDC.SelectObject(oldFont);
|
||||
pdc.BitBlt(0, 0, rcClient.Width(), rcClient.Height(), &memDC, 0, 0, SRCCOPY);
|
||||
memDC.SelectObject(oldBmp);
|
||||
}
|
||||
|
||||
void CPreviewTipWnd::DrawImageArea(CDC& dc, const CRect& rc)
|
||||
{
|
||||
// 边框
|
||||
dc.Draw3dRect(&rc, ::GetSysColor(COLOR_3DSHADOW), ::GetSysColor(COLOR_3DSHADOW));
|
||||
|
||||
if (m_hasImage && m_image) {
|
||||
Graphics g(dc.GetSafeHdc());
|
||||
g.SetInterpolationMode(InterpolationModeHighQualityBicubic);
|
||||
g.SetSmoothingMode(SmoothingModeHighQuality);
|
||||
g.DrawImage(m_image.get(), rc.left + 1, rc.top + 1, rc.Width() - 2, rc.Height() - 2);
|
||||
} else {
|
||||
// 占位灰色背景
|
||||
CRect rcInner = rc;
|
||||
rcInner.DeflateRect(1, 1);
|
||||
dc.FillSolidRect(&rcInner, RGB(245, 245, 245));
|
||||
|
||||
const wchar_t* placeholder = m_unavailable ? L"Preview Unavailable" : L"Loading Preview ...";
|
||||
UINT fmt = DT_CENTER | DT_VCENTER | DT_SINGLELINE | DT_NOPREFIX;
|
||||
dc.SetTextColor(m_unavailable ? RGB(160, 80, 80) : RGB(120, 120, 120));
|
||||
RECT rcInnerRaw = rcInner;
|
||||
::DrawTextW(dc.GetSafeHdc(), placeholder, -1, &rcInnerRaw, fmt);
|
||||
dc.SetTextColor(::GetSysColor(COLOR_INFOTEXT));
|
||||
}
|
||||
}
|
||||
|
||||
void CPreviewTipWnd::DrawTextArea(CDC& dc, const CRect& rc)
|
||||
{
|
||||
RECT r = rc;
|
||||
::DrawTextW(dc.GetSafeHdc(), m_text, m_text.GetLength(), &r,
|
||||
DT_LEFT | DT_TOP | DT_WORDBREAK | DT_NOPREFIX);
|
||||
}
|
||||
57
server/2015Remote/PreviewTipWnd.h
Normal file
57
server/2015Remote/PreviewTipWnd.h
Normal file
@@ -0,0 +1,57 @@
|
||||
// PreviewTipWnd.h
|
||||
// 双击在线主机时弹出的浮窗：上方 JPEG 缩略图，下方主机信息文本。
|
||||
// 无图片时显示"加载预览…"占位，供 OnListClick 即时弹窗、收到响应后再 SetImage 重画。
|
||||
#pragma once
|
||||
|
||||
#include <afxwin.h>
|
||||
#include <memory>
|
||||
#include <vector>
|
||||
|
||||
namespace Gdiplus { class Bitmap; }
|
||||
|
||||
class CPreviewTipWnd : public CWnd
|
||||
{
|
||||
public:
|
||||
CPreviewTipWnd();
|
||||
virtual ~CPreviewTipWnd();
|
||||
|
||||
// 创建浮窗。
|
||||
// anchor 屏幕坐标，浮窗左上角
|
||||
// text 下方显示的主机详情文本（宽字符，确保跨语言系统正确渲染）
|
||||
// imageReserveW 上方图像区域预留宽度（即将到来的预览最大宽度，仅作初始布局）
|
||||
// 为 0 表示不预留 — 与老 STATIC 路径行为一致（仅文本）
|
||||
BOOL Create(CWnd* pParent, CPoint anchor, const CStringW& text, int imageReserveW);
|
||||
|
||||
// 收到 JPEG 后调用：解码并重画。线程安全前提是只在主 UI 线程调用。
|
||||
void SetImageFromJpeg(const BYTE* data, size_t bytes);
|
||||
// 标记预览不可用（请求超时 / 客户端报错）。
|
||||
void MarkPreviewUnavailable();
|
||||
|
||||
WORD GetReqId() const { return m_reqId; }
|
||||
void SetReqId(WORD id) { m_reqId = id; }
|
||||
|
||||
protected:
|
||||
afx_msg void OnPaint();
|
||||
afx_msg BOOL OnEraseBkgnd(CDC* pDC);
|
||||
DECLARE_MESSAGE_MAP()
|
||||
|
||||
private:
|
||||
void RecalcLayoutAndResize();
|
||||
void DrawImageArea(CDC& dc, const CRect& rc);
|
||||
void DrawTextArea(CDC& dc, const CRect& rc);
|
||||
|
||||
CStringW m_text;
|
||||
int m_imageReserveW = 0; // 预留图像宽度（图像未到达时占位）
|
||||
int m_imageReserveH = 0; // 预留图像高度（按 16:9）
|
||||
int m_imageDrawW = 0; // 实际图像绘制宽度
|
||||
int m_imageDrawH = 0; // 实际图像绘制高度
|
||||
int m_textW = 0;
|
||||
int m_textH = 0;
|
||||
|
||||
bool m_hasImage = false;
|
||||
bool m_unavailable = false;
|
||||
std::unique_ptr<Gdiplus::Bitmap> m_image;
|
||||
|
||||
CFont m_font;
|
||||
WORD m_reqId = 0;
|
||||
};
|
||||
@@ -68,4 +68,11 @@ public:
|
||||
if (caps.IsEmpty()) return false;
|
||||
return (strtoul(caps.GetString(), nullptr, 16) & CLIENT_CAP_UTF8) != 0;
|
||||
}
|
||||
|
||||
// 检查客户端是否支持屏幕预览（双击主机时拉缩略图）。
|
||||
bool SupportsScreenPreview() const {
|
||||
CString caps = GetClientData(ONLINELIST_CAPABILITIES);
|
||||
if (caps.IsEmpty()) return false;
|
||||
return (strtoul(caps.GetString(), nullptr, 16) & CLIENT_CAP_SCREEN_PREVIEW) != 0;
|
||||
}
|
||||
};
|
||||
|
||||
@@ -101,6 +101,7 @@
|
||||
#define WM_SHOWNOTIFY WM_USER+3031
|
||||
#define WM_DISCONNECT WM_USER+3032
|
||||
#define WM_OPENTERMINALDIALOG WM_USER+3033
|
||||
#define WM_PREVIEW_RESPONSE WM_USER+3034
|
||||
|
||||
#ifdef _UNICODE
|
||||
#if defined _M_IX86
|
||||
|
||||
Reference in New Issue
Block a user