src/apps/packageinstaller/PackageImageViewer.cpp

   1 /*
   2  * Copyright (c) 2007, Haiku, Inc.
   3  * Distributed under the terms of the MIT license.
   4  *
   5  * Author:
   6  *              Łukasz 'Sil2100' Zemczak <sil2100@vexillium.org>
   7  */
   8
   9
  10 #include "PackageImageViewer.h"
  11
  12 #include <BitmapStream.h>
  13 #include <Catalog.h>
  14 #include <Locale.h>
  15 #include <Message.h>
  16 #include <Screen.h>
  17 #include <TranslatorRoster.h>
  18
  19
  20 #undef B_TRANSLATION_CONTEXT
  21 #define B_TRANSLATION_CONTEXT "PackageImageViewer"
  22
  23
  24 ImageView::ImageView(BPositionIO* imageIO)
  25         :
  26         BView(BRect(0, 0, 1, 1), "image_view", B_FOLLOW_NONE, B_WILL_DRAW),
  27         fImage(NULL)
  28 {
  29         if (imageIO == NULL)
  30                 return;
  31
  32         // Initialize and translate the image
  33         BTranslatorRoster* roster = BTranslatorRoster::Default();
  34         BBitmapStream stream;
  35         if (roster->Translate(imageIO, NULL, NULL, &stream, B_TRANSLATOR_BITMAP)
  36                         != B_OK) {
  37                 return;
  38         }
  39         stream.DetachBitmap(&fImage);
  40 }
  41
  42
  43 ImageView::~ImageView()
  44 {
  45         delete fImage;
  46 }
  47
  48
  49 void
  50 ImageView::AttachedToWindow()
  51 {
  52         if (fImage == NULL) {
  53                 ResizeTo(75, 75);
  54                 return;
  55         }
  56
  57         // We need to resize the view depending on what size has the screen and
  58         // the image we will be viewing
  59         BScreen screen(Window());
  60         BRect frame = screen.Frame();
  61         BRect image = fImage->Bounds();
  62
  63         if (image.Width() > (frame.Width() - 100.0f))
  64                 image.right = frame.Width() - 100.0f;
  65         if (image.Height() > (frame.Height() - 100.0f))
  66                 image.bottom = frame.Height() - 100.f;
  67
  68         ResizeTo(image.Width(), image.Height());
  69 }
  70
  71
  72 void
  73 ImageView::Draw(BRect updateRect)
  74 {
  75         if (fImage != NULL)
  76                 DrawBitmapAsync(fImage, Bounds());
  77         else {
  78                 const char* message = B_TRANSLATE("Image not loaded correctly");
  79                 float width = StringWidth(message);
  80                 DrawString(message, BPoint((Bounds().Width() - width) / 2.0f, 30.0f));
  81         }
  82 }
  83
  84
  85 void
  86 ImageView::MouseUp(BPoint point)
  87 {
  88         BWindow* window = Window();
  89         if (window != NULL)
  90                 window->PostMessage(B_QUIT_REQUESTED);
  91 }
  92
  93
  94 // #pragma mark -
  95
  96
  97 PackageImageViewer::PackageImageViewer(BPositionIO* imageIO)
  98         :
  99         BlockingWindow(BRect(100, 100, 100, 100), "")
 100 {
 101         fBackground = new ImageView(imageIO);
 102         AddChild(fBackground);
 103
 104         ResizeTo(fBackground->Bounds().Width(), fBackground->Bounds().Height());
 105
 106         BScreen screen(this);
 107         BRect frame = screen.Frame();
 108         MoveTo((frame.Width() - Bounds().Width()) / 2.0f,
 109                 (frame.Height() - Bounds().Height()) / 2.0f);
 110 }
 111