src/apps/haikudepot/ui_generic/RatingView.cpp

   1 /*
   2  * Copyright 2013-2014, Stephan Aßmus <superstippi@gmx.de>.
   3  * All rights reserved. Distributed under the terms of the MIT License.
   4  */
   5
   6
   7 #include "RatingView.h"
   8
   9 #include <stdio.h>
  10
  11 #include <LayoutUtils.h>
  12
  13
  14 RatingView::RatingView(const char* name)
  15         :
  16         BView(name, B_WILL_DRAW),
  17         fStarBitmap(501),
  18         fRating(-1.0f)
  19 {
  20         SetViewUIColor(B_PANEL_BACKGROUND_COLOR);
  21         SetLowUIColor(ViewUIColor());
  22 }
  23
  24
  25 RatingView::~RatingView()
  26 {
  27 }
  28
  29
  30 void
  31 RatingView::AttachedToWindow()
  32 {
  33         AdoptParentColors();
  34 }
  35
  36
  37 void
  38 RatingView::Draw(BRect updateRect)
  39 {
  40         FillRect(updateRect, B_SOLID_LOW);
  41
  42         if (fRating < 0.0f)
  43                 return;
  44
  45         const BBitmap* star = fStarBitmap.Bitmap(SharedBitmap::SIZE_16);
  46         if (star == NULL) {
  47                 fprintf(stderr, "No star icon found in application resources.\n");
  48                 return;
  49         }
  50
  51         SetDrawingMode(B_OP_OVER);
  52
  53         float x = 0;
  54         for (int i = 0; i < 5; i++) {
  55                 DrawBitmap(star, BPoint(x, 0));
  56                 x += 16 + 2;
  57         }
  58
  59         if (fRating >= 5.0f)
  60                 return;
  61
  62         SetDrawingMode(B_OP_OVER);
  63
  64         BRect rect(Bounds());
  65         rect.right = x - 2;
  66         rect.left = ceilf(rect.left + (fRating / 5.0f) * rect.Width());
  67
  68         rgb_color color = LowColor();
  69         color.alpha = 190;
  70         SetHighColor(color);
  71
  72         SetDrawingMode(B_OP_ALPHA);
  73         FillRect(rect, B_SOLID_HIGH);
  74 }
  75
  76
  77 BSize
  78 RatingView::MinSize()
  79 {
  80         BSize size(16 * 5 + 2 * 4, 16 + 2);
  81         return BLayoutUtils::ComposeSize(ExplicitMinSize(), size);
  82 }
  83
  84
  85 BSize
  86 RatingView::PreferredSize()
  87 {
  88         return BLayoutUtils::ComposeSize(ExplicitPreferredSize(), MinSize());
  89 }
  90
  91
  92 BSize
  93 RatingView::MaxSize()
  94 {
  95         return BLayoutUtils::ComposeSize(ExplicitMaxSize(), MinSize());
  96 }
  97
  98
  99 void
 100 RatingView::SetRating(float rating)
 101 {
 102         fRating = rating;
 103         Invalidate();
 104 }
 105
 106
 107 float
 108 RatingView::Rating() const
 109 {
 110         return fRating;
 111 }
 112