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/frame.h>
  17 #include <wx/choice.h>
  18 #include <wx/dcclient.h>
  19 #include <wx/gizmos/dynamicsash.h>
  20 #include <wx/layout.h>
  21 #include <wx/scrolbar.h>
  22
  23 class SwitchDemo : public wxApp {
  24 public:
  25     bool OnInit();
  26 };
  27
  28
  29 class SwitchView : public wxWindow {
  30 public:
  31     SwitchView(wxDynamicSashWindow *parent);
  32
  33     wxSize DoGetBestSize() const;
  34
  35 private:
  36     void OnSize(wxSizeEvent& event);
  37     void OnPaint(wxPaintEvent& event);
  38     void OnChoice(wxCommandEvent& event);
  39     void OnScroll(wxScrollEvent& event);
  40     void OnFocus(wxFocusEvent& event);
  41     void OnErase(wxEraseEvent& event);
  42     void OnSplit(wxDynamicSashSplitEvent& event);
  43     void OnUnify(wxDynamicSashUnifyEvent& event);
  44
  45     wxDynamicSashWindow *m_dyn_sash;
  46     wxWindow *m_bar;
  47     wxChoice *m_choice;
  48     wxWindow *m_view;
  49 };
  50
  51 IMPLEMENT_APP(SwitchDemo)
  52
  53
  54 SwitchView::SwitchView(wxDynamicSashWindow *win) {
  55     Create(win, -1);
  56
  57     m_dyn_sash = win;
  58
  59     m_bar = new wxWindow(this, -1, wxDefaultPosition, wxDefaultSize, wxRAISED_BORDER, "bar");
  60     m_choice = new wxChoice(m_bar, -1);
  61     m_choice->SetEventHandler(this);
  62     m_view = new wxWindow(this, -1, wxDefaultPosition, wxDefaultSize, 0, "view");
  63     m_view->SetBackgroundColour(*wxWHITE);
  64     m_view->SetEventHandler(this);
  65
  66     m_choice->Append("Triangle");
  67     m_choice->Append("Square");
  68     m_choice->SetSelection(0);
  69
  70     wxLayoutConstraints *layout;
  71
  72     layout = new wxLayoutConstraints();
  73     layout->left.Absolute(0);
  74     layout->top.Absolute(0);
  75     layout->height.Absolute(36);
  76     layout->width.SameAs(this, wxWidth);
  77     m_bar->SetConstraints(layout);
  78
  79     layout = new wxLayoutConstraints();
  80     layout->left.Absolute(3);
  81     layout->width.AsIs();
  82     layout->height.AsIs();
  83     layout->top.Absolute(3);
  84     m_choice->SetConstraints(layout);
  85
  86     layout = new wxLayoutConstraints();
  87     layout->left.Absolute(0);
  88     layout->width.SameAs(this, wxWidth);
  89     layout->top.Below(m_bar);
  90     layout->bottom.SameAs(this, wxBottom);
  91     m_view->SetConstraints(layout);
  92
  93     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
  94     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
  95
  96     hscroll->SetEventHandler(this);
  97     vscroll->SetEventHandler(this);
  98
  99     Connect(GetId(), wxEVT_SIZE, (wxObjectEventFunction)&SwitchView::OnSize);
 100     Connect(m_choice->GetId(), wxEVT_COMMAND_CHOICE_SELECTED, (wxObjectEventFunction)&SwitchView::OnChoice);
 101     Connect(m_view->GetId(), wxEVT_PAINT, (wxObjectEventFunction)&SwitchView::OnPaint);
 102
 103     Connect(-1, wxEVT_SET_FOCUS, (wxObjectEventFunction)&SwitchView::OnFocus);
 104     Connect(-1, wxEVT_SCROLL_TOP, (wxObjectEventFunction)&SwitchView::OnScroll);
 105     Connect(-1, wxEVT_SCROLL_BOTTOM, (wxObjectEventFunction)&SwitchView::OnScroll);
 106     Connect(-1, wxEVT_SCROLL_LINEUP, (wxObjectEventFunction)&SwitchView::OnScroll);
 107     Connect(-1, wxEVT_SCROLL_LINEDOWN, (wxObjectEventFunction)&SwitchView::OnScroll);
 108     Connect(-1, wxEVT_SCROLL_PAGEUP, (wxObjectEventFunction)&SwitchView::OnScroll);
 109     Connect(-1, wxEVT_SCROLL_PAGEDOWN, (wxObjectEventFunction)&SwitchView::OnScroll);
 110     Connect(-1, wxEVT_SCROLL_THUMBTRACK, (wxObjectEventFunction)&SwitchView::OnScroll);
 111     Connect(-1, wxEVT_SCROLL_THUMBRELEASE, (wxObjectEventFunction)&SwitchView::OnScroll);
 112     Connect(-1, wxEVT_ERASE_BACKGROUND, (wxObjectEventFunction)&SwitchView::OnErase);
 113
 114     Connect(-1, wxEVT_DYNAMIC_SASH_SPLIT, (wxObjectEventFunction)&SwitchView::OnSplit);
 115     Connect(-1, wxEVT_DYNAMIC_SASH_UNIFY, (wxObjectEventFunction)&SwitchView::OnUnify);
 116 }
 117
 118 wxSize SwitchView::DoGetBestSize() const {
 119     return wxSize(64, 64);
 120 }
 121
 122 void SwitchView::OnSize(wxSizeEvent& event) {
 123     Layout();
 124
 125     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 126     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 127
 128     if (hscroll && vscroll) {
 129         int hpos = hscroll->GetThumbPosition();
 130         int vpos = vscroll->GetThumbPosition();
 131
 132         wxSize size = m_view->GetSize();
 133         if (hpos + size.GetWidth() > 300)
 134             hpos = 300 - size.GetWidth();
 135         if (vpos + size.GetHeight() > 300)
 136             vpos = 300 - size.GetHeight();
 137
 138         hscroll->SetScrollbar(hpos, size.GetWidth(), 300, size.GetWidth());
 139         vscroll->SetScrollbar(vpos, size.GetHeight(), 300, size.GetHeight());
 140     }
 141 }
 142
 143 void SwitchView::OnPaint(wxPaintEvent& event) {
 144     wxPaintDC dc(m_view);
 145
 146     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 147     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 148
 149     dc.Clear();
 150     dc.SetDeviceOrigin(-hscroll->GetThumbPosition(), -vscroll->GetThumbPosition());
 151
 152     if (m_choice->GetSelection()) {
 153         dc.DrawLine(20, 20, 280, 20);
 154         dc.DrawLine(280, 20, 280, 280);
 155         dc.DrawLine(280, 280, 20, 280);
 156         dc.DrawLine(20, 280, 20, 20);
 157     } else {
 158         dc.DrawLine(150, 20, 280, 280);
 159         dc.DrawLine(280, 280, 20, 280);
 160         dc.DrawLine(20, 280, 150, 20);
 161     }
 162 }
 163
 164 void SwitchView::OnErase(wxEraseEvent& event) {
 165     // Do nothing
 166 }
 167
 168 void SwitchView::OnSplit(wxDynamicSashSplitEvent& event) {
 169     SwitchView *view = new SwitchView(m_dyn_sash);
 170     view->m_choice->SetSelection(m_choice->GetSelection());
 171
 172     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 173     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 174
 175     hscroll->SetEventHandler(this);
 176     vscroll->SetEventHandler(this);
 177 }
 178
 179 void SwitchView::OnUnify(wxDynamicSashUnifyEvent& event) {
 180     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 181     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 182
 183     hscroll->SetEventHandler(this);
 184     vscroll->SetEventHandler(this);
 185 }
 186
 187 void SwitchView::OnChoice(wxCommandEvent& event) {
 188     m_view->Refresh();
 189 }
 190
 191 void SwitchView::OnScroll(wxScrollEvent& event) {
 192     m_view->Refresh();
 193 }
 194
 195 void SwitchView::OnFocus(wxFocusEvent& event) {
 196     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 197     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 198
 199     if (event.m_eventObject == hscroll || event.m_eventObject == vscroll) {
 200         m_view->SetFocus();
 201     } else {
 202         event.Skip();
 203     }
 204 }
 205
 206
 207
 208 bool SwitchDemo::OnInit() {
 209     wxFrame *frame;
 210     wxDynamicSashWindow *dyn;
 211
 212     frame = new wxFrame(NULL, -1, "Dynamic Sash Window Switch Demo");
 213     dyn = new wxDynamicSashWindow(frame, -1, wxDefaultPosition, wxDefaultSize, wxCLIP_CHILDREN);
 214     new SwitchView(dyn);
 215
 216     frame->SetSize(480, 480);
 217     frame->Show();
 218
 219     return TRUE;
 220 }