#include "wx/sizer.h"
#include "wx/log.h"
+#include "wx/tglbtn.h"
+
+#ifndef __WXMSW__
+ #include "../sample.xpm"
+#endif
// ----------------------------------------------------------------------------
// a trivial example
MyScrolledWindowBase(wxWindow *parent)
: wxScrolledWindow(parent, wxID_ANY,
wxDefaultPosition, wxDefaultSize,
- wxBORDER_SUNKEN),
- m_nLines( 100 )
+ wxBORDER_SUNKEN)
{
+ m_nLines = 50;
+ m_winSync = NULL;
+ m_inDoSync = false;
+
wxClientDC dc(this);
dc.GetTextExtent("Line 17", NULL, &m_hLine);
}
+ // this scrolled window can be synchronized with another one: if this
+ // function is called with a non-NULL pointer, the given window will be
+ // scrolled to the same position as this one
+ void SyncWith(MyScrolledWindowBase *win)
+ {
+ m_winSync = win;
+
+ DoSyncIfNecessary();
+ }
+
+ virtual void ScrollWindow(int dx, int dy, const wxRect *rect = NULL)
+ {
+ wxScrolledWindow::ScrollWindow(dx, dy, rect);
+
+ DoSyncIfNecessary();
+ }
+
protected:
// the height of one line on screen
int m_hLine;
// the number of lines we draw
size_t m_nLines;
+
+private:
+ bool WasScrolledFirst() const { return m_inDoSync; }
+
+ void DoSyncIfNecessary()
+ {
+ if ( m_winSync && !m_winSync->WasScrolledFirst() )
+ {
+ m_inDoSync = true;
+
+ m_winSync->Scroll(GetViewStart());
+
+ m_inDoSync = false;
+ }
+ }
+
+ // the window to synchronize with this one or NULL
+ MyScrolledWindowBase *m_winSync;
+
+ // the flag preventing infinite recursion which would otherwise happen if
+ // one window synchronized the other one which in turn synchronized this
+ // one and so on
+ bool m_inDoSync;
};
// this class does "stupid" redrawing - it redraws everything each time
void OnTestSub(wxCommandEvent& WXUNUSED(event)) { new MySubFrame(this); }
void OnTestAuto(wxCommandEvent& WXUNUSED(event)) { new MyAutoFrame(this); }
+ void OnToggleSync(wxCommandEvent& event);
+ void OnScrollbarVisibility(wxCommandEvent& event);
+
+ MyScrolledWindowBase *m_win1,
+ *m_win2;
+
DECLARE_EVENT_TABLE()
};
{
wxLogMessage("Scrolling 2 units up.\n"
"The white square and the controls should move equally!");
- int x,y;
- GetViewStart( &x, &y );
- Scroll( wxDefaultCoord, y+2 );
+ Scroll( wxDefaultCoord, GetViewStart().y+2 );
}
// ----------------------------------------------------------------------------
const wxWindowID Scroll_Test_Sub = wxWindow::NewControlId();
const wxWindowID Scroll_Test_Auto = wxWindow::NewControlId();
+const wxWindowID Scroll_TglBtn_Sync = wxWindow::NewControlId();
+const wxWindowID Scroll_Radio_ShowScrollbar = wxWindow::NewControlId();
+
BEGIN_EVENT_TABLE(MyFrame,wxFrame)
EVT_MENU(wxID_ABOUT, MyFrame::OnAbout)
EVT_MENU(wxID_EXIT, MyFrame::OnQuit)
EVT_MENU(Scroll_Test_Sizers, MyFrame::OnTestSizer)
EVT_MENU(Scroll_Test_Sub, MyFrame::OnTestSub)
EVT_MENU(Scroll_Test_Auto, MyFrame::OnTestAuto)
+
+ EVT_TOGGLEBUTTON(Scroll_TglBtn_Sync, MyFrame::OnToggleSync)
+ EVT_RADIOBOX(Scroll_Radio_ShowScrollbar, MyFrame::OnScrollbarVisibility)
END_EVENT_TABLE()
MyFrame::MyFrame()
: wxFrame(NULL, wxID_ANY, "wxWidgets scroll sample")
{
+ SetIcon(wxICON(sample));
+
wxMenu *menuFile = new wxMenu;
menuFile->Append(wxID_ABOUT, "&About..");
menuFile->AppendSeparator();
SetMenuBar( mbar );
+ wxPanel *panel = new wxPanel(this);
+
const wxSizerFlags flagsExpand(wxSizerFlags(1).Expand());
wxSizer *topsizer = new wxBoxSizer(wxVERTICAL);
- topsizer->Add(new wxStaticText(this, wxID_ANY,
+ topsizer->Add(new wxStaticText(panel, wxID_ANY,
"The windows below should behave in the same way, even though\n"
"they're implemented quite differently, see the code for details.\n"
"\n"
"don't be surprised by this."),
wxSizerFlags().Centre().Border());
- wxSizer *sizerBtm = new wxBoxSizer(wxHORIZONTAL);
- sizerBtm->Add(new MyScrolledWindowDumb(this), flagsExpand);
- sizerBtm->Add(new MyScrolledWindowSmart(this), flagsExpand);
- topsizer->Add(sizerBtm, flagsExpand);
+ m_win1 = new MyScrolledWindowDumb(panel);
+ m_win2 = new MyScrolledWindowSmart(panel);
+
+ wxSizer *sizerScrollWin = new wxBoxSizer(wxHORIZONTAL);
+ sizerScrollWin->Add(m_win1, flagsExpand);
+ sizerScrollWin->Add(m_win2, flagsExpand);
+ topsizer->Add(sizerScrollWin, flagsExpand);
+
+ const wxSizerFlags
+ flagsHBorder(wxSizerFlags().Centre().Border(wxLEFT | wxRIGHT));
+
+ wxSizer *sizerBtns = new wxBoxSizer(wxHORIZONTAL);
+
+ // the radio buttons are in the same order as wxSHOW_SB_XXX values but
+ // offset by 1
+ const wxString visibilities[] = { "&never", "&default", "&always" };
+ wxRadioBox *radio = new wxRadioBox(panel, Scroll_Radio_ShowScrollbar,
+ "Left &scrollbar visibility: ",
+ wxDefaultPosition, wxDefaultSize,
+ WXSIZEOF(visibilities), visibilities);
+ radio->SetSelection(wxSHOW_SB_DEFAULT + 1);
+ sizerBtns->Add(radio, flagsHBorder);
+
+ sizerBtns->Add(new wxToggleButton(panel, Scroll_TglBtn_Sync, "S&ynchronize"),
+ flagsHBorder);
+
+ topsizer->Add(sizerBtns, wxSizerFlags().Centre().Border());
- SetSizer(topsizer);
+ panel->SetSizer(topsizer);
+ wxSize size = panel->GetBestSize();
+ SetSizeHints(size);
+ SetClientSize(2*size);
Show();
}
+void MyFrame::OnToggleSync(wxCommandEvent& event)
+{
+ if ( event.IsChecked() )
+ {
+ m_win1->SyncWith(m_win2);
+ m_win2->SyncWith(m_win1);
+ }
+ else
+ {
+ m_win1->SyncWith(NULL);
+ m_win2->SyncWith(NULL);
+ }
+}
+
+void MyFrame::OnScrollbarVisibility(wxCommandEvent& event)
+{
+ m_win1->ShowScrollbars(wxSHOW_SB_NEVER,
+ wxScrollbarVisibility(event.GetSelection() - 1));
+}
+
void MyFrame::OnQuit(wxCommandEvent &WXUNUSED(event))
{
Close(true);
{
pos.x /= m_fontW;
pos.y /= m_fontH;
- int vX, vY;
- GetViewStart(&vX, &vY);
- pos.x += vX;
- pos.y += vY;
+ pos += GetViewStart();
return pos;
}
wxPoint
MyAutoScrollingWindow::GraphicalCharToDeviceCoords(wxPoint pos) const
{
- int vX, vY;
- GetViewStart(&vX, &vY);
- pos.x -= vX;
- pos.y -= vY;
+ pos -= GetViewStart();
pos.x *= m_fontW;
pos.y *= m_fontH;
return pos;
dc.SetPen(*wxTRANSPARENT_PEN);
const wxString str = sm_testData;
size_t strLength = str.length();
- wxString::const_iterator str_i;
+ wxString::const_iterator str_i = str.begin();
// draw the characters
// 1. for each update region
// set the new cursor position
m_cursor = DeviceCoordsToGraphicalChars(event.GetPosition());
// draw/erase selection
- MyRefresh();
+ // MyRefresh();
// capture mouse to activate auto-scrolling
if (!HasCapture()) {
CaptureMouse();
projects / wxWidgets.git / blobdiff