向处理程序添加代码
添加处理程序后，即可添加代码来处理对话框。本部分总结了每个处理程序对完整列表执行的操作。
向 MFC 对话框的处理程序添加代码
- 添加实用程序函数以转换、显示和验证值。使用 and 控件执行此操作：CAcUiNumericCAcUiAngleEdit
// Utility functions
void AsdkAcUiDialogSample::DisplayPoint()
{
m_ctrlXPtEdit.SetWindowText(m_strXPt);
m_ctrlXPtEdit.Convert();
m_ctrlYPtEdit.SetWindowText(m_strYPt);
m_ctrlYPtEdit.Convert();
m_ctrlZPtEdit.SetWindowText(m_strZPt);
m_ctrlZPtEdit.Convert();
}
bool AsdkAcUiDialogSample::ValidatePoint()
{
if (!m_ctrlXPtEdit.Validate())
return false;
if (!m_ctrlYPtEdit.Validate())
return false;
if (!m_ctrlZPtEdit.Validate())
return false;
return true;
}
void AsdkAcUiDialogSample::DisplayAngle()
{
m_ctrlAngleEdit.SetWindowText(m_strAngle);
m_ctrlAngleEdit.Convert();
}
bool AsdkAcUiDialogSample::ValidateAngle()
{
if (!m_ctrlAngleEdit.Validate())
return false;
return true;
}
- 添加实用程序函数以循环访问两个符号表，并在两个列表框中显示名称：
void AsdkAcUiDialogSample::DisplayBlocks()
{
AcDbBlockTable *pBlockTable;
acdbHostApplicationServices()->workingDatabase()
->getSymbolTable(pBlockTable, AcDb::kForRead);
// Iterate through the block table and display
// the names in the list box.
//
const char *pName;
AcDbBlockTableIterator *pBTItr;
if (pBlockTable->newIterator(pBTItr) == Acad::eOk) {
while (!pBTItr->done()) {
AcDbBlockTableRecord *pRecord;
if (pBTItr->getRecord(pRecord, AcDb::kForRead)
== Acad::eOk) {
pRecord->getName(pName);
m_ctrlBlockListBox.InsertString(-1, pName);
pRecord->close();
}
pBTItr->step();
}
}
pBlockTable->close();
}
void AsdkAcUiDialogSample::DisplayRegApps()
{
AcDbRegAppTable *pRegAppTable;
acdbHostApplicationServices()->workingDatabase()
->getSymbolTable(pRegAppTable, AcDb::kForRead);
// Iterate through the reg app table and display the
// names in the list box.
//
const char *pName;
AcDbRegAppTableIterator *pItr;
if (pRegAppTable->newIterator(pItr) == Acad::eOk) {
while (!pItr->done()) {
AcDbRegAppTableRecord *pRecord;
if (pItr->getRecord(pRecord, AcDb::kForRead)
== Acad::eOk) {
pRecord->getName(pName);
m_ctrlRegAppComboBox.InsertString(-1, pName);
pRecord->close();
}
pItr->step();
}
}
pRegAppTable->close();
}
- 将函数和变量的声明添加到头文件中的类定义中
void DisplayPoint();
bool ValidatePoint();
void DisplayAngle();
bool ValidateAngle();
void DisplayBlocks();
void DisplayRegApps();
CString m_strAngle;
CString m_strXPt;
CString m_strYPt;
CString m_strZPt;
- 添加按钮处理程序，以便使用 AutoCAD 编辑器拾取点和角度。、 和 函数用于隐藏对话框，允许调用 和 ，最后，根据用户选择的方式取消或重新显示对话框：BeginEditorCommand()CompleteEditorCommand()CancelEditorCommand()acedGetPointacedGetAngle
// AsdkAcUiDialogSample message handlers
void AsdkAcUiDialogSample::OnButtonPoint()
{
// Hide the dialog and give control to the editor
//
BeginEditorCommand();
ads_point pt;
// Get a point
//
if (acedGetPoint(NULL, "\nPick a point: ", pt) == RTNORM) {
// If the point is good, continue
//
CompleteEditorCommand();
m_strXPt.Format("%g", pt[X]);
m_strYPt.Format("%g", pt[Y]);
m_strZPt.Format("%g", pt[Z]);
DisplayPoint();
} else {
// otherwise cancel the command (including the dialog)
CancelEditorCommand();
}
}
void AsdkAcUiDialogSample::OnButtonAngle()
{
// Hide the dialog and give control to the editor
//
BeginEditorCommand();
// Set up the default point for picking an angle
// based on the m_strXPt, m_strYPt, and m_strZPt values
//
ads_point pt;
acdbDisToF(m_strXPt, -1, &pt[X]);
acdbDisToF(m_strYPt, -1, &pt[Y]);
acdbDisToF(m_strZPt, -1, &pt[Z]);
double angle;
// Get a point from the user
//
if (acedGetAngle
(pt, "\nPick an angle: ", &angle) == RTNORM) {
// If we got an angle, go back to the dialog
//
CompleteEditorCommand();
// Convert the acquired radian value to degrees since
// the AcUi control can convert that to the other
// formats.
//
m_strAngle.Format("%g", angle*(180.0/PI));
DisplayAngle();
} else {
// otherwise cancel the command (including the dialog)
//
CancelEditorCommand();
}
}
- 实现编辑框处理程序。这些函数将值转换为当前单位设置：
void AsdkAcUiDialogSample::OnKillfocusEditAngle()
{
// Get and update text the user typed in.
//
m_ctrlAngleEdit.Convert();
m_ctrlAngleEdit.GetWindowText(m_strAngle);
}
void AsdkAcUiDialogSample::OnKillfocusEditXpt()
{
// Get and update text the user typed in.
//
m_ctrlXPtEdit.Convert();
m_ctrlXPtEdit.GetWindowText(m_strXPt);
}
void AsdkAcUiDialogSample::OnKillfocusEditYpt()
{
// Get and update text the user typed in.
//
m_ctrlYPtEdit.Convert();
m_ctrlYPtEdit.GetWindowText(m_strYPt);
}
void AsdkAcUiDialogSample::OnKillfocusEditZpt()
{
// Get and update text the user typed in.
//
m_ctrlZPtEdit.Convert();
m_ctrlZPtEdit.GetWindowText(m_strZPt);
}
- 实现组合框处理程序以允许用户键入字符串，然后将用户的字符串注册为应用程序名称。这一步虽然没有什么实用价值，但演示了组合框的使用：
void AsdkAcUiDialogSample::OnKillfocusComboRegapps()
{
CString strFromEdit;
m_ctrlRegAppComboBox.GetWindowText(strFromEdit);
if (m_ctrlRegAppComboBox.FindString(-1, strFromEdit) == CB_ERR)
if (acdbRegApp(strFromEdit) == RTNORM)
m_ctrlRegAppComboBox.AddString(strFromEdit);
}
- 在此示例的处理程序中处理数据验证。（当然，它可以在其他地方完成。另请注意，处理程序使用以下函数将数据存储在用户配置文件（注册表）中：OnOk()OnOk()SetDialogData()
void AsdkAcUiDialogSample::OnOK()
{
if (!ValidatePoint()) {
AfxMessageBox("Sorry, Point out of desired range.");
m_ctrlXPtEdit.SetFocus();
return;
}
if (!ValidateAngle()) {
AfxMessageBox("Sorry, Angle out of desired range.”);
m_ctrlAngleEdit.SetFocus();
return;
}
CAcUiDialog::OnOK();
// Store the data into the registry
//
SetDialogData("ANGLE", m_strAngle);
SetDialogData("POINTX", m_strXPt);
SetDialogData("POINTY", m_strYPt);
SetDialogData("POINTZ", m_strZPt);
}
- 最后，该函数负责初始化，包括调整大小和数据持久性要求：OnInitDialog()
BOOL AsdkAcUiDialogSample::OnInitDialog()
{
// Set the dialog name for registry lookup and storage
//
SetDialogName("AsdkAcUiSample:AsdkAcUiDialog");
CAcUiDialog::OnInitDialog();
DLGCTLINFO dlgSizeInfo[]= {
{ IDC_STATIC_GROUP1, ELASTICX, 20 },
{ IDC_STATIC_GROUP1, ELASTICY, 100 },
{ IDC_EDIT_XPT, ELASTICX, 20 },
{ IDC_EDIT_YPT, ELASTICX, 20 },
{ IDC_EDIT_ZPT, ELASTICX, 20 },
{ IDC_EDIT_ANGLE, ELASTICX, 20 },
{ IDC_STATIC_GROUP2, MOVEX, 20 },
{ IDC_STATIC_GROUP2, ELASTICY, 100 },
{ IDC_STATIC_GROUP2, ELASTICX, 80 },
{ IDC_LIST_BLOCKS, MOVEX, 20 },
{ IDC_LIST_BLOCKS, ELASTICY, 100 },
{ IDC_STATIC_TEXT2, MOVEX, 20 },
{ IDC_STATIC_TEXT2, MOVEY, 100 },
{ IDC_LIST_BLOCKS, ELASTICX, 80 },
{ IDC_STATIC_TEXT2, ELASTICX, 80 },
{ IDC_STATIC_GROUP3, MOVEY, 100 },
{ IDC_STATIC_GROUP3, ELASTICX, 20 },
{ IDC_COMBO_REGAPPS, MOVEY, 100 },
{ IDC_COMBO_REGAPPS, ELASTICX, 20 },
{ IDC_STATIC_TEXT3, MOVEY, 100 },
{ IDC_STATIC_TEXT3, ELASTICX, 20 },
{ IDOK,MOVEX, 100 },
{ IDCANCEL, MOVEX, 100 },
};
const DWORD numberofentries =
sizeof dlgSizeInfo / sizeof DLGCTLINFO;
SetControlProperty(dlgSizeInfo, numberofentries);
// Must be within a 100-unit cube centered about 0,0,0.
//
m_ctrlXPtEdit.SetRange(-50.0, 50.0);
m_ctrlYPtEdit.SetRange(-50.0, 50.0);
m_ctrlZPtEdit.SetRange(-50.0, 50.0);
// Must be between 0 and 90 degrees.
//
m_ctrlAngleEdit.SetRange(0.0, 90.0 /*(PI/2.0)*/);
// Assign a title for the dialog.
//
SetWindowText("AcUiDialog Sample");
// Load the default bitmaps.
//
m_ctrlPickButton.AutoLoad();
m_ctrlAngleButton.AutoLoad();
// Get and display the preserved data from the registry.
//
if (!GetDialogData("ANGLE", m_strAngle))
m_strAngle = "0.0";
if (!GetDialogData("POINTX", m_strXPt))
m_strXPt = "0.0";
if (!GetDialogData("POINTY", m_strYPt))
m_strYPt = "0.0";
if (!GetDialogData("POINTZ", m_strZPt))
m_strZPt = "0.0";
DisplayPoint();
DisplayAngle();
DisplayBlocks();
DisplayRegApps();
// return TRUE unless you set the focus to a control
return TRUE;
}
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