src/tests/libs/alm/HelloWorld.cpp

   1 /*
   2  * Copyright 2007-2008, Christof Lutteroth, lutteroth@cs.auckland.ac.nz
   3  * Copyright 2007-2008, James Kim, jkim202@ec.auckland.ac.nz
   4  * Copyright 2010, Clemens Zeidler <haiku@clemens-zeidler.de>
   5  * Distributed under the terms of the MIT License.
   6  */
   7
   8 #include <Application.h>
   9 #include <Button.h>
  10 #include <GroupLayout.h>
  11 #include <List.h>
  12 #include <StringView.h>
  13 #include <Window.h>
  14
  15 // include this for ALM
  16 #include "ALMLayout.h"
  17
  18
  19 const uint32 kMsgClone = 'clne';
  20
  21
  22 class HelloWorldWindow : public BWindow {
  23 public:
  24         HelloWorldWindow(BRect frame)
  25                 :
  26                 BWindow(frame, "ALM Hello World", B_TITLED_WINDOW,
  27                         B_QUIT_ON_WINDOW_CLOSE)
  28         {
  29                 button1 = new BButton("Hello World!");
  30
  31                 // create a new BALMLayout and use  it for this window
  32                 fLayout = new BALMLayout();
  33                 BView* view = new BView("alm view", 0, fLayout);
  34                 fLayout->SetExplicitAlignment(BAlignment(B_ALIGN_USE_FULL_WIDTH,
  35                         B_ALIGN_USE_FULL_HEIGHT));
  36                 SetLayout(new BGroupLayout(B_VERTICAL));
  37                 AddChild(view);
  38
  39                 // add an area containing the button
  40                 // use the borders of the layout as the borders for the area
  41                 fLayout->AddView(button1, fLayout->Left(), fLayout->Top(),
  42                         fLayout->Right(), fLayout->Bottom());
  43                 button1->SetExplicitMinSize(BSize(0, 50));
  44                 button1->SetExplicitMaxSize(BSize(500, 500));
  45                 button1->SetExplicitAlignment(BAlignment(B_ALIGN_USE_FULL_WIDTH,
  46                         B_ALIGN_USE_FULL_HEIGHT));
  47
  48                 // test size limits
  49                 BSize min = fLayout->MinSize();
  50                 BSize max = fLayout->MaxSize();
  51                 SetSizeLimits(min.Width(), max.Width(), min.Height(), max.Height());
  52
  53                 AddShortcut('c', B_COMMAND_KEY, new BMessage(kMsgClone));
  54         }
  55
  56         void MessageReceived(BMessage* message)
  57         {
  58                 switch (message->what) {
  59                         case kMsgClone:
  60                         {
  61                                 BView* view = fLayout->View();
  62                                 BMessage archive;
  63                                 view->Archive(&archive, true);
  64                                 BWindow* window = new BWindow(BRect(30, 30, 100, 100),
  65                                         "ALM HelloWorld Clone", B_TITLED_WINDOW,
  66                                         B_QUIT_ON_WINDOW_CLOSE | B_AUTO_UPDATE_SIZE_LIMITS);
  67                                 window->SetLayout(new BGroupLayout(B_VERTICAL));
  68                                 BView* clone;
  69                                 status_t err = BUnarchiver::InstantiateObject(&archive, clone);
  70                                 if (err != B_OK)
  71                                         window->AddChild(new BStringView("", "An error occurred!"));
  72                                 else
  73                                         window->AddChild(clone);
  74                                 window->Show();
  75
  76                                 break;
  77                         }
  78                         default:
  79                                 BWindow::MessageReceived(message);
  80                 }
  81         }
  82
  83 private:
  84
  85         BALMLayout* fLayout;
  86         BButton* button1;
  87 };
  88
  89
  90 class HelloWorld : public BApplication {
  91 public:
  92         HelloWorld()
  93                 :
  94                 BApplication("application/x-vnd.haiku.HelloWorld")
  95         {
  96                 BRect frameRect;
  97                 frameRect.Set(100, 100, 300, 300);
  98                 HelloWorldWindow* window = new HelloWorldWindow(frameRect);
  99                 window->Show();
 100         }
 101 };
 102
 103
 104 int
 105 main()
 106 {
 107         HelloWorld app;
 108         app.Run();
 109         return 0;
 110 }