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 #include <wx/app.h>
  16 #include <wx/choice.h>
  17 #include <wx/dcclient.h>
  18 #include <wx/gizmos/dynamicsash.h>
  19 #include <wx/layout.h>
  20 #include <wx/scrolbar.h>
  21
  22 class SwitchDemo : public wxApp {
  23 public:
  24     bool OnInit();
  25 };
  26
  27
  28 class SwitchView : public wxWindow {
  29 public:
  30     SwitchView(wxDynamicSashWindow *parent);
  31
  32     wxSize DoGetBestSize() const;
  33
  34 private:
  35     void OnSize(wxSizeEvent& event);
  36     void OnPaint(wxPaintEvent& event);
  37     void OnChoice(wxCommandEvent& event);
  38     void OnScroll(wxScrollEvent& event);
  39     void OnFocus(wxFocusEvent& event);
  40     void OnErase(wxEraseEvent& event);
  41     void OnSplit(wxDynamicSashSplitEvent& event);
  42     void OnUnify(wxDynamicSashUnifyEvent& event);
  43
  44     wxDynamicSashWindow *m_dyn_sash;
  45     wxWindow *m_bar;
  46     wxChoice *m_choice;
  47     wxWindow *m_view;
  48 };
  49
  50 IMPLEMENT_APP(SwitchDemo)
  51
  52
  53 SwitchView::SwitchView(wxDynamicSashWindow *win) {
  54     Create(win, -1);
  55
  56     m_dyn_sash = win;
  57
  58     m_bar = new wxWindow(this, -1, wxDefaultPosition, wxDefaultSize, wxRAISED_BORDER, "bar");
  59     m_choice = new wxChoice(m_bar, -1);
  60     m_choice->SetEventHandler(this);
  61     m_view = new wxWindow(this, -1, wxDefaultPosition, wxDefaultSize, 0, "view");
  62     m_view->SetBackgroundColour(*wxWHITE);
  63     m_view->SetEventHandler(this);
  64
  65     m_choice->Append("Triangle");
  66     m_choice->Append("Square");
  67     m_choice->SetSelection(0);
  68
  69     wxLayoutConstraints *layout;
  70
  71     layout = new wxLayoutConstraints();
  72     layout->left.Absolute(0);
  73     layout->top.Absolute(0);
  74     layout->height.Absolute(36);
  75     layout->width.SameAs(this, wxWidth);
  76     m_bar->SetConstraints(layout);
  77
  78     layout = new wxLayoutConstraints();
  79     layout->left.Absolute(3);
  80     layout->width.AsIs();
  81     layout->height.AsIs();
  82     layout->top.Absolute(3);
  83     m_choice->SetConstraints(layout);
  84
  85     layout = new wxLayoutConstraints();
  86     layout->left.Absolute(0);
  87     layout->width.SameAs(this, wxWidth);
  88     layout->top.Below(m_bar);
  89     layout->bottom.SameAs(this, wxBottom);
  90     m_view->SetConstraints(layout);
  91
  92     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
  93     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
  94
  95     hscroll->SetEventHandler(this);
  96     vscroll->SetEventHandler(this);
  97
  98     Connect(GetId(), wxEVT_SIZE, (wxObjectEventFunction)&SwitchView::OnSize);
  99     Connect(m_choice->GetId(), wxEVT_COMMAND_CHOICE_SELECTED, (wxObjectEventFunction)&SwitchView::OnChoice);
 100     Connect(m_view->GetId(), wxEVT_PAINT, (wxObjectEventFunction)&SwitchView::OnPaint);
 101
 102     Connect(-1, wxEVT_SET_FOCUS, (wxObjectEventFunction)&SwitchView::OnFocus);
 103     Connect(-1, wxEVT_SCROLL_TOP, (wxObjectEventFunction)&SwitchView::OnScroll);
 104     Connect(-1, wxEVT_SCROLL_BOTTOM, (wxObjectEventFunction)&SwitchView::OnScroll);
 105     Connect(-1, wxEVT_SCROLL_LINEUP, (wxObjectEventFunction)&SwitchView::OnScroll);
 106     Connect(-1, wxEVT_SCROLL_LINEDOWN, (wxObjectEventFunction)&SwitchView::OnScroll);
 107     Connect(-1, wxEVT_SCROLL_PAGEUP, (wxObjectEventFunction)&SwitchView::OnScroll);
 108     Connect(-1, wxEVT_SCROLL_PAGEDOWN, (wxObjectEventFunction)&SwitchView::OnScroll);
 109     Connect(-1, wxEVT_SCROLL_THUMBTRACK, (wxObjectEventFunction)&SwitchView::OnScroll);
 110     Connect(-1, wxEVT_SCROLL_THUMBRELEASE, (wxObjectEventFunction)&SwitchView::OnScroll);
 111     Connect(-1, wxEVT_ERASE_BACKGROUND, (wxObjectEventFunction)&SwitchView::OnErase);
 112
 113     Connect(-1, wxEVT_DYNAMIC_SASH_SPLIT, (wxObjectEventFunction)&SwitchView::OnSplit);
 114     Connect(-1, wxEVT_DYNAMIC_SASH_UNIFY, (wxObjectEventFunction)&SwitchView::OnUnify);
 115 }
 116
 117 wxSize SwitchView::DoGetBestSize() const {
 118     return wxSize(64, 64);
 119 }
 120
 121 void SwitchView::OnSize(wxSizeEvent& event) {
 122     Layout();
 123
 124     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 125     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 126
 127     if (hscroll && vscroll) {
 128         int hpos = hscroll->GetThumbPosition();
 129         int vpos = vscroll->GetThumbPosition();
 130
 131         wxSize size = m_view->GetSize();
 132         if (hpos + size.GetWidth() > 300)
 133             hpos = 300 - size.GetWidth();
 134         if (vpos + size.GetHeight() > 300)
 135             vpos = 300 - size.GetHeight();
 136
 137         hscroll->SetScrollbar(hpos, size.GetWidth(), 300, size.GetWidth());
 138         vscroll->SetScrollbar(vpos, size.GetHeight(), 300, size.GetHeight());
 139     }
 140 }
 141
 142 void SwitchView::OnPaint(wxPaintEvent& event) {
 143     wxPaintDC dc(m_view);
 144
 145     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 146     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 147
 148     dc.Clear();
 149     dc.SetDeviceOrigin(-hscroll->GetThumbPosition(), -vscroll->GetThumbPosition());
 150
 151     if (m_choice->GetSelection()) {
 152         dc.DrawLine(20, 20, 280, 20);
 153         dc.DrawLine(280, 20, 280, 280);
 154         dc.DrawLine(280, 280, 20, 280);
 155         dc.DrawLine(20, 280, 20, 20);
 156     } else {
 157         dc.DrawLine(150, 20, 280, 280);
 158         dc.DrawLine(280, 280, 20, 280);
 159         dc.DrawLine(20, 280, 150, 20);
 160     }
 161 }
 162
 163 void SwitchView::OnErase(wxEraseEvent& event) {
 164     // Do nothing
 165 }
 166
 167 void SwitchView::OnSplit(wxDynamicSashSplitEvent& event) {
 168     SwitchView *view = new SwitchView(m_dyn_sash);
 169     view->m_choice->SetSelection(m_choice->GetSelection());
 170
 171     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 172     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 173
 174     hscroll->SetEventHandler(this);
 175     vscroll->SetEventHandler(this);
 176 }
 177
 178 void SwitchView::OnUnify(wxDynamicSashUnifyEvent& event) {
 179     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 180     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 181
 182     hscroll->SetEventHandler(this);
 183     vscroll->SetEventHandler(this);
 184 }
 185
 186 void SwitchView::OnChoice(wxCommandEvent& event) {
 187     m_view->Refresh();
 188 }
 189
 190 void SwitchView::OnScroll(wxScrollEvent& event) {
 191     m_view->Refresh();
 192 }
 193
 194 void SwitchView::OnFocus(wxFocusEvent& event) {
 195     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 196     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 197
 198     if (event.m_eventObject == hscroll || event.m_eventObject == vscroll) {
 199         m_view->SetFocus();
 200     } else {
 201         event.Skip();
 202     }
 203 }
 204
 205
 206
 207 bool SwitchDemo::OnInit() {
 208     wxFrame *frame;
 209     wxDynamicSashWindow *dyn;
 210
 211     frame = new wxFrame(NULL, -1, "Dynamic Sash Window Switch Demo");
 212     dyn = new wxDynamicSashWindow(frame, -1, wxDefaultPosition, wxDefaultSize, wxCLIP_CHILDREN);
 213     new SwitchView(dyn);
 214
 215     frame->SetSize(480, 480);
 216     frame->Show();
 217
 218     return TRUE;
 219 }