contrib/samples/gizmos/dynsash_switch/dynsash_switch.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dynsash_switch.cpp
   3 // Purpose:     Test custom scrollbar handling of wxDynamicSashWindow by
   4 //              creating a dynamic sash window where the client scrolls a
   5 //              a subwindow of the client window by responding to scroll
   6 //              events itself
   7 // Author:      Matt Kimball
   8 // Modified by:
   9 // Created:     7/15/2001
  10 // RCS-ID:      $Id$
  11 // Copyright:   (c) 2001 Matt Kimball
  12 // Licence:     wxWindows licence
  13 /////////////////////////////////////////////////////////////////////////////
  14
  15 // For compilers that support precompilation, includes "wx/wx.h".
  16 #include "wx/wxprec.h"
  17
  18 #ifdef __BORLANDC__
  19     #pragma hdrstop
  20 #endif
  21
  22 // for all others, include the necessary headers (this file is usually all you
  23 // need because it includes almost all "standard" wxWidgets headers)
  24 #ifndef WX_PRECOMP
  25     #include "wx/wx.h"
  26 #endif
  27
  28 #include <wx/app.h>
  29 #include <wx/frame.h>
  30 #include <wx/choice.h>
  31 #include <wx/dcclient.h>
  32 #include <wx/gizmos/dynamicsash.h>
  33 #include <wx/layout.h>
  34 #include <wx/scrolbar.h>
  35
  36 class SwitchDemo : public wxApp {
  37 public:
  38     bool OnInit();
  39 };
  40
  41
  42 class SwitchView : public wxWindow {
  43 public:
  44     SwitchView(wxDynamicSashWindow *parent);
  45
  46     wxSize DoGetBestSize() const;
  47
  48 private:
  49     void OnSize(wxSizeEvent& event);
  50     void OnPaint(wxPaintEvent& event);
  51     void OnChoice(wxCommandEvent& event);
  52     void OnScroll(wxScrollEvent& event);
  53     void OnFocus(wxFocusEvent& event);
  54     void OnErase(wxEraseEvent& event);
  55     void OnSplit(wxDynamicSashSplitEvent& event);
  56     void OnUnify(wxDynamicSashUnifyEvent& event);
  57
  58     wxDynamicSashWindow *m_dyn_sash;
  59     wxWindow *m_bar;
  60     wxChoice *m_choice;
  61     wxWindow *m_view;
  62 };
  63
  64 IMPLEMENT_APP(SwitchDemo)
  65
  66
  67 SwitchView::SwitchView(wxDynamicSashWindow *win) {
  68     Create(win, wxID_ANY);
  69
  70     m_dyn_sash = win;
  71
  72     m_bar = new wxWindow(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxRAISED_BORDER, wxT("bar"));
  73     m_choice = new wxChoice(m_bar, wxID_ANY);
  74     m_choice->SetEventHandler(this);
  75     m_view = new wxWindow(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, 0, wxT("view"));
  76     m_view->SetBackgroundColour(*wxWHITE);
  77     m_view->SetEventHandler(this);
  78
  79     m_choice->Append(wxT("Triangle"));
  80     m_choice->Append(wxT("Square"));
  81     m_choice->SetSelection(0);
  82
  83     wxLayoutConstraints *layout;
  84
  85     layout = new wxLayoutConstraints();
  86     layout->left.Absolute(0);
  87     layout->top.Absolute(0);
  88     layout->height.Absolute(36);
  89     layout->width.SameAs(this, wxWidth);
  90     m_bar->SetConstraints(layout);
  91
  92     layout = new wxLayoutConstraints();
  93     layout->left.Absolute(3);
  94     layout->width.AsIs();
  95     layout->height.AsIs();
  96     layout->top.Absolute(3);
  97     m_choice->SetConstraints(layout);
  98
  99     layout = new wxLayoutConstraints();
 100     layout->left.Absolute(0);
 101     layout->width.SameAs(this, wxWidth);
 102     layout->top.Below(m_bar);
 103     layout->bottom.SameAs(this, wxBottom);
 104     m_view->SetConstraints(layout);
 105
 106     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 107     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 108
 109     hscroll->SetEventHandler(this);
 110     vscroll->SetEventHandler(this);
 111
 112     Connect(GetId(), wxEVT_SIZE, (wxObjectEventFunction)
 113                                  (wxEventFunction)
 114                                  (wxSizeEventFunction)&SwitchView::OnSize);
 115     Connect(m_choice->GetId(), wxEVT_COMMAND_CHOICE_SELECTED, (wxObjectEventFunction)
 116                                                               (wxEventFunction)
 117                                                               (wxCommandEventFunction)&SwitchView::OnChoice);
 118     Connect(m_view->GetId(), wxEVT_PAINT, (wxObjectEventFunction)
 119                                           (wxEventFunction)
 120                                           (wxPaintEventFunction)&SwitchView::OnPaint);
 121
 122     Connect(wxID_ANY, wxEVT_SET_FOCUS, (wxObjectEventFunction)
 123                                  (wxEventFunction)
 124                                  (wxFocusEventFunction)&SwitchView::OnFocus);
 125     Connect(wxID_ANY, wxEVT_SCROLL_TOP, (wxObjectEventFunction)
 126                                   (wxEventFunction)
 127                                   (wxScrollEventFunction)&SwitchView::OnScroll);
 128     Connect(wxID_ANY, wxEVT_SCROLL_BOTTOM, (wxObjectEventFunction)
 129                                      (wxEventFunction)
 130                                      (wxScrollEventFunction)&SwitchView::OnScroll);
 131     Connect(wxID_ANY, wxEVT_SCROLL_LINEUP, (wxObjectEventFunction)
 132                                      (wxEventFunction)
 133                                      (wxScrollEventFunction)&SwitchView::OnScroll);
 134     Connect(wxID_ANY, wxEVT_SCROLL_LINEDOWN, (wxObjectEventFunction)
 135                                        (wxEventFunction)
 136                                        (wxScrollEventFunction)&SwitchView::OnScroll);
 137     Connect(wxID_ANY, wxEVT_SCROLL_PAGEUP, (wxObjectEventFunction)
 138                                      (wxEventFunction)
 139                                      (wxScrollEventFunction)&SwitchView::OnScroll);
 140     Connect(wxID_ANY, wxEVT_SCROLL_PAGEDOWN, (wxObjectEventFunction)
 141                                        (wxEventFunction)
 142                                        (wxScrollEventFunction)&SwitchView::OnScroll);
 143     Connect(wxID_ANY, wxEVT_SCROLL_THUMBTRACK, (wxObjectEventFunction)
 144                                          (wxEventFunction)
 145                                          (wxScrollEventFunction)&SwitchView::OnScroll);
 146     Connect(wxID_ANY, wxEVT_SCROLL_THUMBRELEASE, (wxObjectEventFunction)
 147                                            (wxEventFunction)
 148                                            (wxScrollEventFunction)&SwitchView::OnScroll);
 149     Connect(wxID_ANY, wxEVT_ERASE_BACKGROUND, (wxObjectEventFunction)
 150                                         (wxEventFunction)
 151                                         (wxEraseEventFunction)&SwitchView::OnErase);
 152
 153     Connect(wxID_ANY, wxEVT_DYNAMIC_SASH_SPLIT, (wxObjectEventFunction)
 154                                           (wxEventFunction)
 155                                           (wxDynamicSashSplitEventFunction)&SwitchView::OnSplit);
 156     Connect(wxID_ANY, wxEVT_DYNAMIC_SASH_UNIFY, (wxObjectEventFunction)
 157                                           (wxEventFunction)
 158                                           (wxDynamicSashUnifyEventFunction)&SwitchView::OnUnify);
 159 }
 160
 161 wxSize SwitchView::DoGetBestSize() const {
 162     return wxSize(64, 64);
 163 }
 164
 165 void SwitchView::OnSize(wxSizeEvent& WXUNUSED(event)) {
 166     Layout();
 167
 168     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 169     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 170
 171     if (hscroll && vscroll) {
 172         int hpos = hscroll->GetThumbPosition();
 173         int vpos = vscroll->GetThumbPosition();
 174
 175         wxSize size = m_view->GetSize();
 176         if (hpos + size.GetWidth() > 300)
 177             hpos = 300 - size.GetWidth();
 178         if (vpos + size.GetHeight() > 300)
 179             vpos = 300 - size.GetHeight();
 180
 181         hscroll->SetScrollbar(hpos, size.GetWidth(), 300, size.GetWidth());
 182         vscroll->SetScrollbar(vpos, size.GetHeight(), 300, size.GetHeight());
 183     }
 184 }
 185
 186 void SwitchView::OnPaint(wxPaintEvent& WXUNUSED(event)) {
 187     wxPaintDC dc(m_view);
 188
 189     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 190     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 191
 192     dc.Clear();
 193     dc.SetDeviceOrigin(-hscroll->GetThumbPosition(), -vscroll->GetThumbPosition());
 194
 195     if (m_choice->GetSelection()) {
 196         dc.DrawLine(20, 20, 280, 20);
 197         dc.DrawLine(280, 20, 280, 280);
 198         dc.DrawLine(280, 280, 20, 280);
 199         dc.DrawLine(20, 280, 20, 20);
 200     } else {
 201         dc.DrawLine(150, 20, 280, 280);
 202         dc.DrawLine(280, 280, 20, 280);
 203         dc.DrawLine(20, 280, 150, 20);
 204     }
 205 }
 206
 207 void SwitchView::OnErase(wxEraseEvent& WXUNUSED(event)) {
 208     // Do nothing
 209 }
 210
 211 void SwitchView::OnSplit(wxDynamicSashSplitEvent& WXUNUSED(event)) {
 212     SwitchView *view = new SwitchView(m_dyn_sash);
 213     view->m_choice->SetSelection(m_choice->GetSelection());
 214
 215     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 216     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 217
 218     hscroll->SetEventHandler(this);
 219     vscroll->SetEventHandler(this);
 220 }
 221
 222 void SwitchView::OnUnify(wxDynamicSashUnifyEvent& WXUNUSED(event)) {
 223     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 224     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 225
 226     hscroll->SetEventHandler(this);
 227     vscroll->SetEventHandler(this);
 228 }
 229
 230 void SwitchView::OnChoice(wxCommandEvent& WXUNUSED(event)) {
 231     m_view->Refresh();
 232 }
 233
 234 void SwitchView::OnScroll(wxScrollEvent& WXUNUSED(event)) {
 235     m_view->Refresh();
 236 }
 237
 238 void SwitchView::OnFocus(wxFocusEvent& event) {
 239     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 240     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 241
 242     if (event.GetEventObject() == hscroll || event.GetEventObject() == vscroll) {
 243         m_view->SetFocus();
 244     } else {
 245         event.Skip();
 246     }
 247 }
 248
 249
 250
 251 bool SwitchDemo::OnInit() {
 252     wxFrame *frame;
 253     wxDynamicSashWindow *dyn;
 254
 255     frame = new wxFrame(NULL, wxID_ANY, wxT("Dynamic Sash Window Switch Demo"));
 256     dyn = new wxDynamicSashWindow(frame, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxCLIP_CHILDREN);
 257     new SwitchView(dyn);
 258
 259     frame->SetSize(480, 480);
 260     frame->Show();
 261
 262     return true;
 263 }