Mega Code Archive
Rich Text area demo
<![CDATA[
using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;
public ref class Form1 : public System::Windows::Forms::Form
{
public:
Form1(void)
{
InitializeComponent();
BuildLabels();
}
private:
System::Windows::Forms::RichTextBox^ rtBox;
array<System::Windows::Forms::Label^>^ labels;
void InitializeComponent(void)
{
this->rtBox = (gcnew System::Windows::Forms::RichTextBox());
this->SuspendLayout();
//
// rtBox
//
this->rtBox->Anchor =
static_cast<System::Windows::Forms::AnchorStyles>
((((System::Windows::Forms::AnchorStyles::Top
| System::Windows::Forms::AnchorStyles::Bottom)
| System::Windows::Forms::AnchorStyles::Left)
| System::Windows::Forms::AnchorStyles::Right));
this->rtBox->Location = System::Drawing::Point(0, 32);
this->rtBox->Name = L"rtBox";
this->rtBox->RightMargin = 900;
this->rtBox->ScrollBars =
System::Windows::Forms::RichTextBoxScrollBars::ForcedVertical;
this->rtBox->ShowSelectionMargin = true;
this->rtBox->Size = System::Drawing::Size(950, 488);
this->rtBox->TabIndex = 1;
this->rtBox->Text = L"";
this->rtBox->KeyDown +=
gcnew System::Windows::Forms::KeyEventHandler(this,
&Form1::rtBox_KeyDown);
//
// Form1
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->ClientSize = System::Drawing::Size(950, 520);
this->Controls->Add(this->rtBox);
this->Name = L"Form1";
this->Text = L"(Very Simple Rich Text Editor)";
this->ResumeLayout(false);
}
void BuildLabels()
{
array<String^>^ rtLabel = gcnew array<String^> {
L"F1-Bold", L"F2-Italics", L"F3-Underline",
L"F4-Normal", L"F5-Red", L"F6-Blue",
L"F7-Green", L"F8-Black", L"F9-Load",
L"F10-Save"
};
labels = gcnew array<System::Windows::Forms::Label^>(10);
// Build the labels
for (int i = 0; i < labels->Length; i++)
{
labels[i] = gcnew Label();
labels[i]->BackColor = SystemColors::ControlDark;
labels[i]->BorderStyle = BorderStyle::FixedSingle;
labels[i]->Location = Drawing::Point(5+(95*i), 8);
labels[i]->Size = Drawing::Size(85, 16);
labels[i]->Text = rtLabel[i];
labels[i]->TextAlign = ContentAlignment::MiddleCenter;
}
// Place labels on the Form
Controls->AddRange(labels);
}
System::Void rtBox_KeyDown(System::Object^ sender,
System::Windows::Forms::KeyEventArgs^ e)
{
try
{
if (rtBox->SelectionLength > 0)
{
// Change selected text style
FontStyle fs;
switch (e->KeyCode)
{
case Keys::F1:
fs = FontStyle::Bold;
break;
case Keys::F2:
fs = FontStyle::Italic;
break;
case Keys::F3:
fs = FontStyle::Underline;
break;
case Keys::F4:
fs = FontStyle::Regular;
break;
// Change selected text color
case Keys::F5:
rtBox->SelectionColor = Color::Red;
break;
case Keys::F6:
rtBox->SelectionColor = Color::Blue;
break;
case Keys::F7:
rtBox->SelectionColor = Color::Green;
break;
case Keys::F8:
rtBox->SelectionColor = Color::Black;
break;
}
// Do the actual change of the selected text style
if (e->KeyCode >= Keys::F1 && e->KeyCode <= Keys::F4)
{
rtBox->SelectionFont = gcnew Drawing::Font(
rtBox->SelectionFont->FontFamily,
rtBox->SelectionFont->Size,
fs
);
}
}
// Load hard coded Chapter01.rtf file
else if (e->KeyCode == Keys::F9)
{
rtBox->LoadFile("Chapter01.rtf");
}
// Save hard coded Chapter01.rtf file
else if (e->KeyCode == Keys::F10)
{
rtBox->SaveFile("Chapter01.rtf",
RichTextBoxStreamType::RichText);
}
}
// Capture any blowups
catch (Exception ^e)
{
MessageBox::Show(String::Format("Error: {0}", e->Message));
}
}
};
[STAThreadAttribute]
int main(array<System::String ^> ^args)
{
Application::Run(gcnew Form1());
return 0;
}
]]>