📄 unit1.cpp
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/*=============================================================================}
{ This demo shows how to add controls to RichView }
{=============================================================================*/
//---------------------------------------------------------------------------
#include <vcl\vcl.h>
#pragma hdrstop
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma link "RichView"
#pragma link "RVScroll"
#pragma link "RVStyle"
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::DoOnScrollBarChange(TObject* Sender)
{
Label3->Caption = IntToStr(((TScrollBar*)Sender)->Position);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormCreate(TObject *Sender)
{
RichView1->Clear();
RichView1->AddNL("Example of adding controls", 1, 1);
// Adding "break" - horizontal line
RichView1->AddBreakEx(3, rvbsLine, clRed);
// 1st parameter - line width (AddBreak method adds break with width=1)
// 2nd parameter - reserved, must be set to rvbsLine
// 3rd parameter - color; if set to clNone, "break" will have color of the
// 0th text style (AddBreak method adds break with color=clNone)
//-------------------------------------------//
// Example 1: adding controls from form: //
//-------------------------------------------//
// Adding combobox
RichView1->AddNL("Combobox:", 0, 0);
// AddControlEx removes control from its current parent and insert into RichView
// Just one line of code:
RichView1->AddControlEx("", ComboBox1, 1, rvvaBaseline);
//-------------------------------------------//
// Example 1: adding controls created at //
// run-time: //
//-------------------------------------------//
RichView1->AddNL("Panel with scrollbar:", 0, 1);
// Adding panel with scrollbar
TPanel * pan = new TPanel((TComponent*)NULL); // we can set NULL to Owner because this panel will be freed by RichView
pan->Caption = "";
pan->Width = 100;
pan->Height = 60;
TScrollBar* sb = new TScrollBar(pan); // panel will free scrollbar
sb->Parent = pan;
sb->Min = -10;
sb->Max = 10;
sb->SetBounds(10,20,80,20);
sb->OnChange = DoOnScrollBarChange;
RichView1->AddControlEx("", pan, -1, rvvaMiddle);
RichView1->AddBreakEx(3, rvbsLine, clRed);
RichView1->Format();
// About AddControlEx:
// Parameters of this method are similar with parameters of AddPictureEx:
// 1st parameter: name of control. Allows to hold additional text information
// together with control. There is no predefined meaning of this
// parameter.
// 2nd parameter: control
// 3rd parameter: index of paragraph style (-1 to continue paragraph)
// 4th parameter: vertical align of control.
}
//---------------------------------------------------------------------------
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