1 | /* $Id: VBoxDbgBase.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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2 | /** @file
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3 | * VBox Debugger GUI - Base classes.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2024 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 |
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29 | /*********************************************************************************************************************************
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30 | * Header Files *
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31 | *********************************************************************************************************************************/
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32 | #define LOG_GROUP LOG_GROUP_DBGG
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33 | #include <iprt/errcore.h>
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34 | #include <iprt/asm.h>
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35 | #include <iprt/assert.h>
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36 | #include <limits.h>
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37 | #include "VBoxDbgBase.h"
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38 | #include "VBoxDbgGui.h"
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39 |
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40 | #include <QApplication>
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41 | #include <QWidgetList>
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42 |
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43 |
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44 |
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45 | VBoxDbgBase::VBoxDbgBase(VBoxDbgGui *a_pDbgGui)
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46 | : m_pDbgGui(a_pDbgGui), m_pUVM(NULL), m_pVMM(NULL), m_hGUIThread(RTThreadNativeSelf())
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47 | {
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48 | NOREF(m_pDbgGui); /* shut up warning. */
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49 |
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50 | /*
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51 | * Register
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52 | */
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53 | m_pUVM = a_pDbgGui->getUvmHandle();
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54 | m_pVMM = a_pDbgGui->getVMMFunctionTable();
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55 | if (m_pUVM && m_pVMM)
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56 | {
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57 | m_pVMM->pfnVMR3RetainUVM(m_pUVM);
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58 |
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59 | int rc = m_pVMM->pfnVMR3AtStateRegister(m_pUVM, atStateChange, this);
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60 | AssertRC(rc);
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61 | }
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62 | }
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63 |
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64 |
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65 | VBoxDbgBase::~VBoxDbgBase()
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66 | {
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67 | /*
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68 | * If the VM is still around.
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69 | */
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70 | /** @todo need to do some locking here? */
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71 | PUVM pUVM = ASMAtomicXchgPtrT(&m_pUVM, NULL, PUVM);
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72 | PCVMMR3VTABLE pVMM = ASMAtomicXchgPtrT(&m_pVMM, NULL, PCVMMR3VTABLE);
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73 | if (pUVM && pVMM)
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74 | {
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75 | int rc = pVMM->pfnVMR3AtStateDeregister(pUVM, atStateChange, this);
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76 | AssertRC(rc);
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77 |
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78 | pVMM->pfnVMR3ReleaseUVM(pUVM);
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79 | }
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80 | }
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81 |
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82 |
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83 | int
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84 | VBoxDbgBase::stamReset(const QString &rPat)
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85 | {
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86 | QByteArray Utf8Array = rPat.toUtf8();
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87 | const char *pszPat = !rPat.isEmpty() ? Utf8Array.constData() : NULL;
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88 | PUVM pUVM = m_pUVM;
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89 | PCVMMR3VTABLE pVMM = m_pVMM;
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90 | if ( pUVM
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91 | && pVMM
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92 | && pVMM->pfnVMR3GetStateU(pUVM) < VMSTATE_DESTROYING)
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93 | return pVMM->pfnSTAMR3Reset(pUVM, pszPat);
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94 | return VERR_INVALID_HANDLE;
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95 | }
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96 |
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97 |
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98 | int
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99 | VBoxDbgBase::stamEnum(const QString &rPat, PFNSTAMR3ENUM pfnEnum, void *pvUser)
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100 | {
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101 | QByteArray Utf8Array = rPat.toUtf8();
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102 | const char *pszPat = !rPat.isEmpty() ? Utf8Array.constData() : NULL;
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103 | PUVM pUVM = m_pUVM;
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104 | PCVMMR3VTABLE pVMM = m_pVMM;
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105 | if ( pUVM
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106 | && pVMM
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107 | && pVMM->pfnVMR3GetStateU(pUVM) < VMSTATE_DESTROYING)
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108 | return pVMM->pfnSTAMR3Enum(pUVM, pszPat, pfnEnum, pvUser);
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109 | return VERR_INVALID_HANDLE;
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110 | }
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111 |
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112 |
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113 | int
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114 | VBoxDbgBase::dbgcCreate(PCDBGCIO pIo, unsigned fFlags)
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115 | {
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116 | PUVM pUVM = m_pUVM;
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117 | PCVMMR3VTABLE pVMM = m_pVMM;
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118 | if ( pUVM
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119 | && pVMM
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120 | && pVMM->pfnVMR3GetStateU(pUVM) < VMSTATE_DESTROYING)
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121 | return pVMM->pfnDBGCCreate(pUVM, pIo, fFlags);
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122 | return VERR_INVALID_HANDLE;
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123 | }
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124 |
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125 |
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126 | /*static*/ DECLCALLBACK(void)
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127 | VBoxDbgBase::atStateChange(PUVM pUVM, PCVMMR3VTABLE pVMM, VMSTATE enmState, VMSTATE /*enmOldState*/, void *pvUser)
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128 | {
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129 | VBoxDbgBase *pThis = (VBoxDbgBase *)pvUser; NOREF(pUVM);
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130 | switch (enmState)
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131 | {
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132 | case VMSTATE_TERMINATED:
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133 | {
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134 | /** @todo need to do some locking here? */
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135 | PUVM pUVM2 = ASMAtomicXchgPtrT(&pThis->m_pUVM, NULL, PUVM);
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136 | PCVMMR3VTABLE pVMM2 = ASMAtomicXchgPtrT(&pThis->m_pVMM, NULL, PCVMMR3VTABLE);
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137 | if (pUVM2 && pVMM2)
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138 | {
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139 | Assert(pUVM2 == pUVM);
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140 | Assert(pVMM2 == pVMM);
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141 | pThis->sigTerminated();
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142 | pVMM->pfnVMR3ReleaseUVM(pUVM2);
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143 | }
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144 | break;
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145 | }
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146 |
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147 | case VMSTATE_DESTROYING:
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148 | pThis->sigDestroying();
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149 | break;
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150 |
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151 | default:
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152 | break;
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153 | }
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154 | RT_NOREF(pVMM);
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155 | }
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156 |
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157 |
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158 | void
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159 | VBoxDbgBase::sigDestroying()
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160 | {
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161 | }
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162 |
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163 |
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164 | void
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165 | VBoxDbgBase::sigTerminated()
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166 | {
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167 | }
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168 |
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169 |
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170 |
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171 |
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172 | //
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173 | //
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174 | //
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175 | // V B o x D b g B a s e W i n d o w
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176 | // V B o x D b g B a s e W i n d o w
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177 | // V B o x D b g B a s e W i n d o w
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178 | //
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179 | //
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180 | //
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181 |
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182 | unsigned VBoxDbgBaseWindow::m_cxBorder = 0;
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183 | unsigned VBoxDbgBaseWindow::m_cyBorder = 0;
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184 |
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185 |
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186 | VBoxDbgBaseWindow::VBoxDbgBaseWindow(VBoxDbgGui *a_pDbgGui, QWidget *a_pParent, const char *a_pszTitle)
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187 | : QWidget(a_pParent, Qt::Window), VBoxDbgBase(a_pDbgGui), m_pszTitle(a_pszTitle), m_fPolished(false)
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188 | , m_x(INT_MAX), m_y(INT_MAX), m_cx(0), m_cy(0), m_cxMinHint(0), m_enmAttraction(VBoxDbgBaseWindow::kAttractionVmNone)
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189 | {
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190 | /* Set the title, using the parent one as prefix when possible: */
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191 | if (!parent())
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192 | {
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193 | QString strMachineName = a_pDbgGui->getMachineName();
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194 | if (strMachineName.isEmpty())
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195 | setWindowTitle(QString("VBoxDbg - %1").arg(m_pszTitle));
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196 | else
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197 | setWindowTitle(QString("%1 - VBoxDbg - %2").arg(strMachineName).arg(m_pszTitle));
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198 | }
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199 | else
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200 | {
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201 | setWindowTitle(QString("%1 - %2").arg(parentWidget()->windowTitle()).arg(m_pszTitle));
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202 |
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203 | /* Install an event filter so we can make adjustments when the parent title changes: */
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204 | parent()->installEventFilter(this);
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205 | }
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206 | }
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207 |
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208 |
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209 | VBoxDbgBaseWindow::~VBoxDbgBaseWindow()
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210 | {
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211 |
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212 | }
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213 |
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214 |
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215 | void
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216 | VBoxDbgBaseWindow::vShow()
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217 | {
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218 | show();
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219 | /** @todo this ain't working right. HELP! */
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220 | setWindowState(windowState() & ~Qt::WindowMinimized);
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221 | //activateWindow();
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222 | //setFocus();
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223 | vPolishSizeAndPos();
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224 | }
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225 |
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226 |
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227 | void
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228 | VBoxDbgBaseWindow::vReposition(int a_x, int a_y, unsigned a_cx, unsigned a_cy, bool a_fResize)
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229 | {
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230 | /* Don't modify if maximized.
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231 | We miss the desired size + position here, but never mind for now. */
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232 | if (!(windowState() & Qt::WindowMaximized))
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233 | {
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234 | if (a_fResize)
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235 | {
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236 | m_cx = a_cx;
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237 | m_cy = a_cy;
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238 |
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239 | QSize const BorderSize = vGetBorderSize();
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240 | resize(a_cx - BorderSize.width(), a_cy - BorderSize.height());
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241 | }
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242 |
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243 | m_x = a_x;
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244 | m_y = a_y;
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245 | move(a_x, a_y);
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246 | }
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247 | }
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248 |
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249 |
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250 | QSize
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251 | VBoxDbgBaseWindow::vGetBorderSize()
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252 | {
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253 | QSize BorderSize = frameSize() - size();
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254 |
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255 | #ifdef Q_WS_X11 /* (from the qt gui) */
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256 | /*
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257 | * On X11, there is no way to determine frame geometry (including WM
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258 | * decorations) before the widget is shown for the first time. Stupidly
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259 | * enumerate other top level widgets to find the thickest frame.
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260 | */
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261 | if (BorderSize == QSize(0, 0))
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262 | {
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263 | if (!m_cxBorder && !m_cyBorder) /* (only till we're successful) */
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264 | {
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265 | int cxExtra = 0;
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266 | int cyExtra = 0;
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267 |
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268 | QWidgetList WidgetList = QApplication::topLevelWidgets();
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269 | for (QListIterator<QWidget *> it(WidgetList); it.hasNext(); )
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270 | {
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271 | QWidget *pCurWidget = it.next();
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272 | if (pCurWidget->isVisible())
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273 | {
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274 | int const cxFrame = pCurWidget->frameGeometry().width() - pCurWidget->width();
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275 | cxExtra = qMax(cxExtra, cxFrame);
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276 | int const cyFrame = pCurWidget->frameGeometry().height() - pCurWidget->height();
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277 | cyExtra = qMax(cyExtra, cyFrame);
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278 | if (cyExtra && cxExtra)
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279 | break;
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280 | }
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281 | }
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282 |
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283 | if (cxExtra || cyExtra)
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284 | {
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285 | m_cxBorder = cxExtra;
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286 | m_cyBorder = cyExtra;
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287 | }
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288 | }
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289 | BorderSize.setWidth(m_cxBorder);
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290 | BorderSize.setHeight(m_cyBorder);
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291 | }
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292 | #endif /* X11 */
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293 |
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294 | return BorderSize;
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295 | }
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296 |
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297 |
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298 | bool
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299 | VBoxDbgBaseWindow::event(QEvent *a_pEvt)
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300 | {
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301 | bool fRc = QWidget::event(a_pEvt);
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302 | if ( a_pEvt->type() == QEvent::Paint
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303 | || a_pEvt->type() == QEvent::UpdateRequest
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304 | || a_pEvt->type() == QEvent::LayoutRequest) /** @todo Someone with Qt knowledge should figure out how to properly do this. */
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305 | vPolishSizeAndPos();
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306 | return fRc;
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307 | }
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308 |
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309 |
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310 | bool VBoxDbgBaseWindow::eventFilter(QObject *pWatched, QEvent *pEvent)
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311 | {
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312 | /* We're only interested in title changes to the parent so we can amend our own title: */
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313 | if ( pWatched == parent()
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314 | && pEvent->type() == QEvent::WindowTitleChange)
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315 | setWindowTitle(QString("%1 - %2").arg(parentWidget()->windowTitle()).arg(m_pszTitle));
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316 |
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317 | /* Forward to base-class: */
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318 | return QWidget::eventFilter(pWatched, pEvent);
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319 | }
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320 |
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321 |
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322 | void
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323 | VBoxDbgBaseWindow::vPolishSizeAndPos()
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324 | {
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325 | /* Ignore if already done or no size set. */
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326 | if ( m_fPolished
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327 | || (m_x == INT_MAX && m_y == INT_MAX))
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328 | return;
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329 |
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330 | if (VBoxDbgBaseWindow::vGetBorderSize() != QSize(0,0))
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331 | m_fPolished = true;
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332 |
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333 | vReposition(m_x, m_y, m_cx, m_cy, m_cx || m_cy);
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334 | }
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335 |
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