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" wxWindows 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, -1);
  69
  70     m_dyn_sash = win;
  71
  72     m_bar = new wxWindow(this, -1, wxDefaultPosition, wxDefaultSize, wxRAISED_BORDER, "bar");
  73     m_choice = new wxChoice(m_bar, -1);
  74     m_choice->SetEventHandler(this);
  75     m_view = new wxWindow(this, -1, wxDefaultPosition, wxDefaultSize, 0, "view");
  76     m_view->SetBackgroundColour(*wxWHITE);
  77     m_view->SetEventHandler(this);
  78
  79     m_choice->Append("Triangle");
  80     m_choice->Append("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)&SwitchView::OnSize);
 113     Connect(m_choice->GetId(), wxEVT_COMMAND_CHOICE_SELECTED, (wxObjectEventFunction)&SwitchView::OnChoice);
 114     Connect(m_view->GetId(), wxEVT_PAINT, (wxObjectEventFunction)&SwitchView::OnPaint);
 115
 116     Connect(-1, wxEVT_SET_FOCUS, (wxObjectEventFunction)&SwitchView::OnFocus);
 117     Connect(-1, wxEVT_SCROLL_TOP, (wxObjectEventFunction)&SwitchView::OnScroll);
 118     Connect(-1, wxEVT_SCROLL_BOTTOM, (wxObjectEventFunction)&SwitchView::OnScroll);
 119     Connect(-1, wxEVT_SCROLL_LINEUP, (wxObjectEventFunction)&SwitchView::OnScroll);
 120     Connect(-1, wxEVT_SCROLL_LINEDOWN, (wxObjectEventFunction)&SwitchView::OnScroll);
 121     Connect(-1, wxEVT_SCROLL_PAGEUP, (wxObjectEventFunction)&SwitchView::OnScroll);
 122     Connect(-1, wxEVT_SCROLL_PAGEDOWN, (wxObjectEventFunction)&SwitchView::OnScroll);
 123     Connect(-1, wxEVT_SCROLL_THUMBTRACK, (wxObjectEventFunction)&SwitchView::OnScroll);
 124     Connect(-1, wxEVT_SCROLL_THUMBRELEASE, (wxObjectEventFunction)&SwitchView::OnScroll);
 125     Connect(-1, wxEVT_ERASE_BACKGROUND, (wxObjectEventFunction)&SwitchView::OnErase);
 126
 127     Connect(-1, wxEVT_DYNAMIC_SASH_SPLIT, (wxObjectEventFunction)&SwitchView::OnSplit);
 128     Connect(-1, wxEVT_DYNAMIC_SASH_UNIFY, (wxObjectEventFunction)&SwitchView::OnUnify);
 129 }
 130
 131 wxSize SwitchView::DoGetBestSize() const {
 132     return wxSize(64, 64);
 133 }
 134
 135 void SwitchView::OnSize(wxSizeEvent& event) {
 136     Layout();
 137
 138     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 139     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 140
 141     if (hscroll && vscroll) {
 142         int hpos = hscroll->GetThumbPosition();
 143         int vpos = vscroll->GetThumbPosition();
 144
 145         wxSize size = m_view->GetSize();
 146         if (hpos + size.GetWidth() > 300)
 147             hpos = 300 - size.GetWidth();
 148         if (vpos + size.GetHeight() > 300)
 149             vpos = 300 - size.GetHeight();
 150
 151         hscroll->SetScrollbar(hpos, size.GetWidth(), 300, size.GetWidth());
 152         vscroll->SetScrollbar(vpos, size.GetHeight(), 300, size.GetHeight());
 153     }
 154 }
 155
 156 void SwitchView::OnPaint(wxPaintEvent& event) {
 157     wxPaintDC dc(m_view);
 158
 159     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 160     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 161
 162     dc.Clear();
 163     dc.SetDeviceOrigin(-hscroll->GetThumbPosition(), -vscroll->GetThumbPosition());
 164
 165     if (m_choice->GetSelection()) {
 166         dc.DrawLine(20, 20, 280, 20);
 167         dc.DrawLine(280, 20, 280, 280);
 168         dc.DrawLine(280, 280, 20, 280);
 169         dc.DrawLine(20, 280, 20, 20);
 170     } else {
 171         dc.DrawLine(150, 20, 280, 280);
 172         dc.DrawLine(280, 280, 20, 280);
 173         dc.DrawLine(20, 280, 150, 20);
 174     }
 175 }
 176
 177 void SwitchView::OnErase(wxEraseEvent& event) {
 178     // Do nothing
 179 }
 180
 181 void SwitchView::OnSplit(wxDynamicSashSplitEvent& event) {
 182     SwitchView *view = new SwitchView(m_dyn_sash);
 183     view->m_choice->SetSelection(m_choice->GetSelection());
 184
 185     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 186     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 187
 188     hscroll->SetEventHandler(this);
 189     vscroll->SetEventHandler(this);
 190 }
 191
 192 void SwitchView::OnUnify(wxDynamicSashUnifyEvent& event) {
 193     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 194     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 195
 196     hscroll->SetEventHandler(this);
 197     vscroll->SetEventHandler(this);
 198 }
 199
 200 void SwitchView::OnChoice(wxCommandEvent& event) {
 201     m_view->Refresh();
 202 }
 203
 204 void SwitchView::OnScroll(wxScrollEvent& event) {
 205     m_view->Refresh();
 206 }
 207
 208 void SwitchView::OnFocus(wxFocusEvent& event) {
 209     wxScrollBar *hscroll = m_dyn_sash->GetHScrollBar(this);
 210     wxScrollBar *vscroll = m_dyn_sash->GetVScrollBar(this);
 211
 212     if (event.m_eventObject == hscroll || event.m_eventObject == vscroll) {
 213         m_view->SetFocus();
 214     } else {
 215         event.Skip();
 216     }
 217 }
 218
 219
 220
 221 bool SwitchDemo::OnInit() {
 222     wxFrame *frame;
 223     wxDynamicSashWindow *dyn;
 224
 225     frame = new wxFrame(NULL, -1, "Dynamic Sash Window Switch Demo");
 226     dyn = new wxDynamicSashWindow(frame, -1, wxDefaultPosition, wxDefaultSize, wxCLIP_CHILDREN);
 227     new SwitchView(dyn);
 228
 229     frame->SetSize(480, 480);
 230     frame->Show();
 231
 232     return TRUE;
 233 }