// Name: samples/vscroll/vstest.cpp
// Purpose: VScroll wxWidgets sample
// Author: Vadim Zeitlin
-// Modified by:
+// Modified by: Brad Anderson
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
#include "../sample.xpm"
#endif
+// ----------------------------------------------------------------------------
+// definitions
+// ----------------------------------------------------------------------------
+
+#define MAX_LINES 10000
+
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
// Define a new application type, each program should derive a class from wxApp
-class VScrollApp : public wxApp
+class VarScrollApp : public wxApp
{
public:
// create our main window
};
// Define a new frame type: this is going to be our main frame
-class VScrollFrame : public wxFrame
+class VarScrollFrame : public wxFrame
{
public:
// ctor
- VScrollFrame();
+ VarScrollFrame();
// event handlers (these functions should _not_ be virtual)
void OnQuit(wxCommandEvent& event);
+ void OnModeVScroll(wxCommandEvent& event);
+ void OnModeHScroll(wxCommandEvent& event);
+ void OnModeHVScroll(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnSize(wxSizeEvent& event)
if ( m_frameStatusBar )
{
wxSize sz = GetClientSize();
- SetStatusText(wxString::Format(_T("%dx%d"), sz.x, sz.y), 1);
+ SetStatusText(wxString::Format(wxT("%dx%d"), sz.x, sz.y), 1);
}
#endif // wxUSE_STATUSBAR
}
private:
+ // either a wxVScrolledWindow or a wxHVScrolled window, depending on current mode
+ wxPanel *m_scrollWindow;
+
// any class wishing to process wxWidgets events must use this macro
DECLARE_EVENT_TABLE()
};
{
m_frame = frame;
- SetLineCount(200);
+ SetRowCount(MAX_LINES);
+
+ int i;
+ for ( i = 0; i < MAX_LINES; ++i )
+ m_heights[i] = rand()%25+16; // low: 16; high: 40
m_changed = true;
}
#if wxUSE_STATUSBAR
m_frame->SetStatusText(wxString::Format
(
- _T("Page size = %d, pos = %d, max = %d"),
+ wxT("Page size = %d, pos = %d, max = %d"),
GetScrollThumb(wxVERTICAL),
GetScrollPos(wxVERTICAL),
GetScrollRange(wxVERTICAL)
{
wxPaintDC dc(this);
- dc.SetPen(*wxBLACK_DASHED_PEN);
+ dc.SetPen(*wxBLACK_PEN);
- const size_t lineFirst = GetFirstVisibleLine(),
- lineLast = GetLastVisibleLine();
+ const size_t lineFirst = GetVisibleBegin(),
+ lineLast = GetVisibleEnd();
const wxCoord hText = dc.GetCharHeight();
+ wxSize clientSize = GetClientSize();
+
wxCoord y = 0;
- for ( size_t line = lineFirst; line <= lineLast; line++ )
+ for ( size_t line = lineFirst; line < lineLast; line++ )
{
- dc.DrawLine(0, y, 1000, y);
+ dc.DrawLine(0, y, clientSize.GetWidth(), y);
- wxCoord hLine = OnGetLineHeight(line);
- dc.DrawText(wxString::Format(_T("Line %lu"), (unsigned long)line),
- 0, y + (hLine - hText) / 2);
+ wxCoord hLine = OnGetRowHeight(line);
+ dc.DrawText(wxString::Format(wxT("Line %lu"), (unsigned long)line),
+ 2, y + (hLine - hText) / 2);
y += hLine;
dc.DrawLine(0, y, 1000, y);
event.Skip();
}
+ void OnMouse(wxMouseEvent& event)
+ {
+ if(event.LeftDown())
+ CaptureMouse();
+ else if(event.LeftUp())
+ ReleaseMouse();
+ event.Skip();
+ }
- virtual wxCoord OnGetLineHeight(size_t n) const
+ virtual wxCoord OnGetRowHeight(size_t n) const
{
- wxASSERT( n < GetLineCount() );
+ wxASSERT( n < GetRowCount() );
- return n % 2 ? 15 : 30; // 15 + 2*n
+ return m_heights[n];
}
private:
wxFrame *m_frame;
+ int m_heights[MAX_LINES];
+
bool m_changed;
DECLARE_EVENT_TABLE()
EVT_IDLE(VScrollWindow::OnIdle)
EVT_PAINT(VScrollWindow::OnPaint)
EVT_SCROLLWIN(VScrollWindow::OnScroll)
+ EVT_MOUSE_EVENTS(VScrollWindow::OnMouse)
+END_EVENT_TABLE()
+
+class HScrollWindow : public wxHScrolledWindow
+{
+public:
+ HScrollWindow(wxFrame *frame) : wxHScrolledWindow(frame, wxID_ANY)
+ {
+ m_frame = frame;
+
+ SetColumnCount(MAX_LINES);
+
+ int i;
+ for ( i = 0; i < MAX_LINES; ++i )
+ m_heights[i] = rand()%25+16; // low: 15; high: 40
+
+ m_changed = true;
+ }
+
+ void OnIdle(wxIdleEvent&)
+ {
+#if wxUSE_STATUSBAR
+ m_frame->SetStatusText(wxString::Format
+ (
+ wxT("Page size = %d, pos = %d, max = %d"),
+ GetScrollThumb(wxVERTICAL),
+ GetScrollPos(wxVERTICAL),
+ GetScrollRange(wxVERTICAL)
+ ));
+#endif // wxUSE_STATUSBAR
+ m_changed = false;
+ }
+
+ void OnPaint(wxPaintEvent&)
+ {
+ wxPaintDC dc(this);
+
+ dc.SetPen(*wxBLACK_PEN);
+
+ const size_t lineFirst = GetVisibleBegin(),
+ lineLast = GetVisibleEnd();
+
+ const wxCoord hText = dc.GetCharHeight();
+
+ wxSize clientSize = GetClientSize();
+
+ wxCoord x = 0;
+ for ( size_t line = lineFirst; line < lineLast; line++ )
+ {
+ dc.DrawLine(x, 0, x, clientSize.GetHeight());
+
+ wxCoord wLine = OnGetColumnWidth(line);
+ dc.DrawRotatedText(wxString::Format(wxT("Line %lu"), (unsigned long)line),
+ x + (wLine - hText) / 2, clientSize.GetHeight() - 5, 90);
+
+ x += wLine;
+ dc.DrawLine(x, 0, x, 1000);
+ }
+ }
+
+ void OnScroll(wxScrollWinEvent& event)
+ {
+ m_changed = true;
+
+ event.Skip();
+ }
+
+ void OnMouse(wxMouseEvent& event)
+ {
+ if(event.LeftDown())
+ CaptureMouse();
+ else if(event.LeftUp())
+ ReleaseMouse();
+ event.Skip();
+ }
+
+ virtual wxCoord OnGetColumnWidth(size_t n) const
+ {
+ wxASSERT( n < GetColumnCount() );
+
+ return m_heights[n];
+ }
+
+private:
+ wxFrame *m_frame;
+
+ int m_heights[MAX_LINES];
+
+ bool m_changed;
+
+ DECLARE_EVENT_TABLE()
+};
+
+BEGIN_EVENT_TABLE(HScrollWindow, wxHScrolledWindow)
+ EVT_IDLE(HScrollWindow::OnIdle)
+ EVT_PAINT(HScrollWindow::OnPaint)
+ EVT_SCROLLWIN(HScrollWindow::OnScroll)
+ EVT_MOUSE_EVENTS(HScrollWindow::OnMouse)
+END_EVENT_TABLE()
+
+class HVScrollWindow : public wxHVScrolledWindow
+{
+public:
+ HVScrollWindow(wxFrame *frame) : wxHVScrolledWindow(frame, wxID_ANY)
+ {
+ m_frame = frame;
+
+ SetRowColumnCount(MAX_LINES, MAX_LINES);
+
+ int i;
+ for ( i = 0; i < MAX_LINES; ++i )
+ {
+ m_heights[i] = rand()%30+31; // low: 30; high: 60
+ m_widths[i] = rand()%30+61; // low: 60; high: 90
+ }
+
+ m_changed = true;
+ }
+
+ void OnIdle(wxIdleEvent&)
+ {
+#if wxUSE_STATUSBAR
+ m_frame->SetStatusText(wxString::Format
+ (
+ wxT("Page size = %d rows %d columns; pos = row: %d, column: %d; max = %d rows, %d columns"),
+ GetScrollThumb(wxVERTICAL),
+ GetScrollThumb(wxHORIZONTAL),
+ GetScrollPos(wxVERTICAL),
+ GetScrollPos(wxHORIZONTAL),
+ GetScrollRange(wxVERTICAL),
+ GetScrollRange(wxHORIZONTAL)
+ ));
+#endif // wxUSE_STATUSBAR
+ m_changed = false;
+ }
+
+ void OnPaint(wxPaintEvent&)
+ {
+ wxPaintDC dc(this);
+
+ dc.SetPen(*wxBLACK_PEN);
+
+ const size_t rowFirst = GetVisibleRowsBegin(),
+ rowLast = GetVisibleRowsEnd();
+ const size_t columnFirst = GetVisibleColumnsBegin(),
+ columnLast = GetVisibleColumnsEnd();
+
+ const wxCoord hText = dc.GetCharHeight();
+
+ wxSize clientSize = GetClientSize();
+
+ wxCoord y = 0;
+ wxCoord x = 0;
+ for ( size_t row = rowFirst; row < rowLast; row++ )
+ {
+ wxCoord rowHeight = OnGetRowHeight(row);
+ dc.DrawLine(0, y, clientSize.GetWidth(), y);
+
+ x = 0;
+ for ( size_t col = columnFirst; col < columnLast; col++ )
+ {
+ wxCoord colWidth = OnGetColumnWidth(col);
+
+ if ( row == rowFirst )
+ dc.DrawLine(x, 0, x, clientSize.GetHeight());
+
+ dc.DrawText(wxString::Format(wxT("Row %lu"), (unsigned long)row),
+ x + 2, y + rowHeight / 2 - hText);
+ dc.DrawText(wxString::Format(wxT("Col %lu"), (unsigned long)col),
+ x + 2, y + rowHeight / 2);
+
+ x += colWidth;
+ if ( row == rowFirst)
+ dc.DrawLine(x, 0, x, clientSize.GetHeight());
+ }
+
+ y += rowHeight;
+ dc.DrawLine(0, y, clientSize.GetWidth(), y);
+ }
+ }
+
+ void OnScroll(wxScrollWinEvent& event)
+ {
+ m_changed = true;
+
+ event.Skip();
+ }
+
+ void OnMouse(wxMouseEvent& event)
+ {
+ if(event.LeftDown())
+ CaptureMouse();
+ else if(event.LeftUp())
+ ReleaseMouse();
+ event.Skip();
+ }
+
+ virtual wxCoord OnGetRowHeight(size_t n) const
+ {
+ wxASSERT( n < GetRowCount() );
+
+ return m_heights[n];
+ }
+
+ virtual wxCoord OnGetColumnWidth(size_t n) const
+ {
+ wxASSERT( n < GetColumnCount() );
+
+ return m_widths[n];
+ }
+
+private:
+ wxFrame *m_frame;
+
+ int m_heights[MAX_LINES];
+ int m_widths[MAX_LINES];
+
+ bool m_changed;
+
+ DECLARE_EVENT_TABLE()
+};
+
+BEGIN_EVENT_TABLE(HVScrollWindow, wxHVScrolledWindow)
+ EVT_IDLE(HVScrollWindow::OnIdle)
+ EVT_PAINT(HVScrollWindow::OnPaint)
+ EVT_SCROLLWIN(HVScrollWindow::OnScroll)
+ EVT_MOUSE_EVENTS(HVScrollWindow::OnMouse)
END_EVENT_TABLE()
// ----------------------------------------------------------------------------
// it is important for the id corresponding to the "About" command to have
// this standard value as otherwise it won't be handled properly under Mac
// (where it is special and put into the "Apple" menu)
- VScroll_About = wxID_ABOUT
+ VScroll_About = wxID_ABOUT,
+
+ VScroll_VScrollMode = wxID_HIGHEST + 1,
+ VScroll_HScrollMode,
+ VScroll_HVScrollMode
};
// ----------------------------------------------------------------------------
// the event tables connect the wxWidgets events with the functions (event
// handlers) which process them. It can be also done at run-time, but for the
// simple menu events like this the static method is much simpler.
-BEGIN_EVENT_TABLE(VScrollFrame, wxFrame)
- EVT_MENU(VScroll_Quit, VScrollFrame::OnQuit)
- EVT_MENU(VScroll_About, VScrollFrame::OnAbout)
- EVT_SIZE(VScrollFrame::OnSize)
+BEGIN_EVENT_TABLE(VarScrollFrame, wxFrame)
+ EVT_MENU(VScroll_Quit, VarScrollFrame::OnQuit)
+ EVT_MENU(VScroll_VScrollMode, VarScrollFrame::OnModeVScroll)
+ EVT_MENU(VScroll_HScrollMode, VarScrollFrame::OnModeHScroll)
+ EVT_MENU(VScroll_HVScrollMode, VarScrollFrame::OnModeHVScroll)
+ EVT_MENU(VScroll_About, VarScrollFrame::OnAbout)
+ EVT_SIZE(VarScrollFrame::OnSize)
END_EVENT_TABLE()
// Create a new application object: this macro will allow wxWidgets to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also declares the accessor function
-// wxGetApp() which will return the reference of the right type (i.e. VScrollApp and
+// wxGetApp() which will return the reference of the right type (i.e. VarScrollApp and
// not wxApp)
-IMPLEMENT_APP(VScrollApp)
+IMPLEMENT_APP(VarScrollApp)
// ============================================================================
// implementation
// ----------------------------------------------------------------------------
// 'Main program' equivalent: the program execution "starts" here
-bool VScrollApp::OnInit()
+bool VarScrollApp::OnInit()
{
+ if ( !wxApp::OnInit() )
+ return false;
+
// create the main application window
- VScrollFrame *frame = new VScrollFrame;
+ VarScrollFrame *frame = new VarScrollFrame;
// and show it (the frames, unlike simple controls, are not shown when
// created initially)
// ----------------------------------------------------------------------------
// frame constructor
-VScrollFrame::VScrollFrame()
- : wxFrame(NULL,
- wxID_ANY,
- _T("VScroll wxWidgets Sample"),
- wxDefaultPosition,
- wxSize(400, 350))
+VarScrollFrame::VarScrollFrame()
+ : wxFrame(NULL,
+ wxID_ANY,
+ wxT("VScroll wxWidgets Sample"),
+ wxDefaultPosition,
+ wxSize(400, 350)),
+ m_scrollWindow(NULL)
{
// set the frame icon
SetIcon(wxICON(sample));
// create a menu bar
wxMenu *menuFile = new wxMenu;
+ wxMenu *menuMode = new wxMenu;
+
// the "About" item should be in the help menu
wxMenu *menuHelp = new wxMenu;
- menuHelp->Append(VScroll_About, _T("&About...\tF1"), _T("Show about dialog"));
+ menuHelp->Append(VScroll_About, wxT("&About...\tF1"), wxT("Show about dialog"));
+
+#ifdef wxHAS_RADIO_MENU_ITEMS
+ menuMode->AppendRadioItem(VScroll_VScrollMode, wxT("&Vertical\tAlt-V"),
+ wxT("Vertical scrolling only"));
+ menuMode->AppendRadioItem(VScroll_HScrollMode, wxT("&Horizontal\tAlt-H"),
+ wxT("Horizontal scrolling only"));
+ menuMode->AppendRadioItem(VScroll_HVScrollMode,
+ wxT("Hori&zontal/Vertical\tAlt-Z"),
+ wxT("Horizontal and vertical scrolling"));
+ menuMode->Check(VScroll_VScrollMode, true);
+#else
+ menuMode->Append(VScroll_VScrollMode, wxT("&Vertical\tAlt-V"),
+ wxT("Vertical scrolling only"));
+ menuMode->Append(VScroll_HScrollMode, wxT("&Horizontal\tAlt-H"),
+ wxT("Horizontal scrolling only"));
+ menuMode->Append(VScroll_HVScrollMode, wxT("Hori&zontal/Vertical\tAlt-Z"),
+ wxT("Horizontal and vertical scrolling"));
+#endif
- menuFile->Append(VScroll_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
+ menuFile->Append(VScroll_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program"));
// now append the freshly created menu to the menu bar...
wxMenuBar *menuBar = new wxMenuBar;
- menuBar->Append(menuFile, _T("&File"));
- menuBar->Append(menuHelp, _T("&Help"));
+ menuBar->Append(menuFile, wxT("&File"));
+ menuBar->Append(menuMode, wxT("&Mode"));
+ menuBar->Append(menuHelp, wxT("&Help"));
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
#if wxUSE_STATUSBAR
// create a status bar just for fun (by default with 1 pane only)
CreateStatusBar(2);
- SetStatusText(_T("Welcome to wxWidgets!"));
+ SetStatusText(wxT("Welcome to wxWidgets!"));
+ int widths[2];
+ widths[0] = -1;
+ widths[1] = 100;
+ SetStatusWidths(2, widths);
#endif // wxUSE_STATUSBAR
// create our one and only child -- it will take our entire client area
- new VScrollWindow(this);
+ if ( menuMode->IsChecked(VScroll_VScrollMode) )
+ m_scrollWindow = new VScrollWindow(this);
+ else if ( menuMode->IsChecked(VScroll_HScrollMode) )
+ m_scrollWindow = new HScrollWindow(this);
+ else
+ m_scrollWindow = new HVScrollWindow(this);
}
// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------
-void VScrollFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
+void VarScrollFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
// true is to force the frame to close
Close(true);
}
-void VScrollFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
+void VarScrollFrame::OnModeVScroll(wxCommandEvent& WXUNUSED(event))
+{
+ if ( m_scrollWindow )
+ m_scrollWindow->Destroy();
+
+ m_scrollWindow = new VScrollWindow(this);
+ SendSizeEvent();
+}
+
+void VarScrollFrame::OnModeHScroll(wxCommandEvent& WXUNUSED(event))
+{
+ if ( m_scrollWindow )
+ m_scrollWindow->Destroy();
+
+ m_scrollWindow = new HScrollWindow(this);
+ SendSizeEvent();
+}
+
+void VarScrollFrame::OnModeHVScroll(wxCommandEvent& WXUNUSED(event))
+{
+ if ( m_scrollWindow )
+ m_scrollWindow->Destroy();
+
+ m_scrollWindow = new HVScrollWindow(this);
+ SendSizeEvent();
+}
+
+void VarScrollFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
- wxMessageBox(_T("VScroll shows how to implement scrolling with\n")
- _T("variable line heights.\n")
- _T("(c) 2003 Vadim Zeitlin"),
- _T("About VScroll"),
+ wxMessageBox(wxT("VScroll shows how to implement scrolling with\n")
+ wxT("variable line widths and heights.\n")
+ wxT("(c) 2003 Vadim Zeitlin"),
+ wxT("About VScroll"),
wxOK | wxICON_INFORMATION,
this);
}
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