src/tests/servers/app/view_transit/ViewTransit.cpp

   1 /*
   2  * Copyright 2008, Stephan Aßmus <superstippi@gmx.de>
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6
   7 #include <Application.h>
   8 #include <Window.h>
   9 #include <View.h>
  10
  11 #include <stdio.h>
  12
  13
  14 class View : public BView {
  15 public:
  16                                                 View(BRect rect, const char* name, uint32 followMode,
  17                                                         uint8 red, uint8 green, uint8 blue);
  18                 virtual                 ~View();
  19
  20                 virtual void    Draw(BRect updateRect);
  21
  22                 virtual void    MouseDown(BPoint where);
  23                 virtual void    MouseMoved(BPoint where, uint32 transit,
  24                                                         const BMessage* dragMessage);
  25
  26 private:
  27                                 void    _SetTransit(uint32 transit);
  28
  29                                 uint32  fLastTransit;
  30 };
  31
  32
  33 View::View(BRect rect, const char* name, uint32 followMode,
  34                 uint8 red, uint8 green, uint8 blue)
  35         : BView(rect, name, followMode, B_WILL_DRAW),
  36           fLastTransit(B_OUTSIDE_VIEW)
  37 {
  38         SetViewUIColor(B_PANEL_BACKGROUND_COLOR);
  39         SetHighColor(red, green, blue);
  40 }
  41
  42
  43 View::~View()
  44 {
  45 }
  46
  47
  48 void
  49 View::Draw(BRect updateRect)
  50 {
  51         if (fLastTransit == B_INSIDE_VIEW || fLastTransit == B_ENTERED_VIEW)
  52                 FillRect(updateRect);
  53 }
  54
  55
  56 void
  57 View::MouseDown(BPoint where)
  58 {
  59         uint32 buttons;
  60         do {
  61                 GetMouse(&where, &buttons);
  62         } while (buttons != 0);
  63 }
  64
  65
  66 void
  67 View::MouseMoved(BPoint where, uint32 transit, const BMessage* dragMessage)
  68 {
  69         _SetTransit(transit);
  70 }
  71
  72
  73 void
  74 View::_SetTransit(uint32 transit)
  75 {
  76         if (transit == fLastTransit)
  77                 return;
  78
  79         switch (transit) {
  80                 case B_ENTERED_VIEW:
  81                         if (fLastTransit == B_INSIDE_VIEW)
  82                                 printf("%s, B_ENTERED_VIEW, but already inside!\n", Name());
  83                         break;
  84
  85                 case B_EXITED_VIEW:
  86                         if (fLastTransit == B_OUTSIDE_VIEW)
  87                                 printf("%s, B_EXITED_VIEW, but already outside!\n", Name());
  88                         break;
  89
  90                 case B_INSIDE_VIEW:
  91                         if (fLastTransit == B_OUTSIDE_VIEW)
  92                                 printf("%s, B_INSIDE_VIEW, but never entered!\n", Name());
  93                         if (fLastTransit == B_EXITED_VIEW)
  94                                 printf("%s, B_INSIDE_VIEW, but just exited!\n", Name());
  95                         break;
  96
  97                 case B_OUTSIDE_VIEW:
  98                         if (fLastTransit == B_INSIDE_VIEW)
  99                                 printf("%s, B_OUTSIDE_VIEW, but never exited!\n", Name());
 100                         if (fLastTransit == B_ENTERED_VIEW)
 101                                 printf("%s, B_OUTSIDE_VIEW, but just entered!\n", Name());
 102                         break;
 103         }
 104
 105         fLastTransit = transit;
 106         Invalidate();
 107 }
 108
 109
 110 //      #pragma mark -
 111
 112
 113 int
 114 main(int argc, char **argv)
 115 {
 116         BApplication app("application/x-vnd.haiku-view_transit");
 117
 118         BWindow* window = new BWindow(BRect(100, 100, 400, 400),
 119                 "ViewTransit-Test", B_TITLED_WINDOW,
 120                 B_ASYNCHRONOUS_CONTROLS | B_QUIT_ON_WINDOW_CLOSE);
 121
 122         BRect frame = window->Bounds();
 123         frame.right /= 2;
 124         window->AddChild(new View(frame, "L ", B_FOLLOW_ALL, 255, 0, 0));
 125         frame.left = frame.right + 1;
 126         frame.right = window->Bounds().right;
 127         View* view = new View(frame, "R", B_FOLLOW_TOP_BOTTOM | B_FOLLOW_RIGHT,
 128                 0, 255, 0);
 129         window->AddChild(view);
 130         view->SetEventMask(B_POINTER_EVENTS, B_NO_POINTER_HISTORY);
 131
 132         window->Show();
 133
 134         app.Run();
 135         return 0;
 136 }