src/apps/haikudepot/ui_generic/BitmapButton.cpp

   1 /*
   2  * Copyright 2013, Stephan Aßmus <superstippi@gmx.de>.
   3  * All rights reserved. Distributed under the terms of the MIT License.
   4  */
   5
   6
   7 #include "BitmapButton.h"
   8
   9 #include <ControlLook.h>
  10 #include <LayoutUtils.h>
  11 #include <Window.h>
  12
  13
  14 BitmapButton::BitmapButton(const char* name, BMessage* message)
  15         :
  16         BitmapView(name),
  17         BInvoker(message, NULL, NULL),
  18         fMouseInside(false),
  19         fMouseDown(false)
  20 {
  21         SetScaleBitmap(false);
  22 }
  23
  24
  25 BitmapButton::~BitmapButton()
  26 {
  27 }
  28
  29
  30 void
  31 BitmapButton::AttachedToWindow()
  32 {
  33         // TODO: Init fMouseInside
  34         BitmapView::AttachedToWindow();
  35 }
  36
  37 void
  38 BitmapButton::MouseMoved(BPoint where, uint32 transit,
  39         const BMessage* dragMessage)
  40 {
  41         int32 buttons = 0;
  42         if (Window() != NULL && Window()->CurrentMessage() != NULL)
  43                 Window()->CurrentMessage()->FindInt32("buttons", &buttons);
  44
  45         bool ignoreEvent = dragMessage != NULL || (!fMouseDown && buttons != 0);
  46
  47         _SetMouseInside(!ignoreEvent && transit == B_INSIDE_VIEW);
  48 }
  49
  50
  51 void
  52 BitmapButton::MouseDown(BPoint where)
  53 {
  54         if (fMouseInside) {
  55                 _SetMouseDown(true);
  56                 SetMouseEventMask(B_POINTER_EVENTS, B_LOCK_WINDOW_FOCUS);
  57         }
  58 }
  59
  60
  61 void
  62 BitmapButton::MouseUp(BPoint where)
  63 {
  64         _SetMouseDown(false);
  65         if (fMouseInside)
  66                 Invoke();
  67 }
  68
  69
  70 BSize
  71 BitmapButton::MinSize()
  72 {
  73         BSize size = BitmapView::MinSize();
  74         size.width += 6;
  75         size.height += 6;
  76         return BLayoutUtils::ComposeSize(ExplicitMinSize(), size);
  77 }
  78
  79
  80 BSize
  81 BitmapButton::PreferredSize()
  82 {
  83         BSize size = MinSize();
  84         return BLayoutUtils::ComposeSize(ExplicitPreferredSize(), size);
  85 }
  86
  87
  88 BSize
  89 BitmapButton::MaxSize()
  90 {
  91         BSize size = MinSize();
  92         return BLayoutUtils::ComposeSize(ExplicitMaxSize(), size);
  93 }
  94
  95
  96 // #pragma mark -
  97
  98
  99 void
 100 BitmapButton::DrawBackground(BRect& bounds, BRect updateRect)
 101 {
 102         if (Message() != NULL && (fMouseInside || fMouseDown)) {
 103                 rgb_color color = LowColor();
 104                 uint32 flags = 0;
 105                 if (fMouseDown)
 106                         flags |= BControlLook::B_ACTIVATED;
 107
 108                 be_control_look->DrawButtonFrame(this, bounds, updateRect,
 109                         color, color, flags);
 110                 be_control_look->DrawButtonBackground(this, bounds, updateRect,
 111                         color, flags);
 112         } else {
 113                 BitmapView::DrawBackground(bounds, updateRect);
 114         }
 115 }
 116
 117
 118 // #pragma mark -
 119
 120
 121 void
 122 BitmapButton::_SetMouseInside(bool inside)
 123 {
 124         if (fMouseInside == inside)
 125                 return;
 126
 127         fMouseInside = inside;
 128
 129         if (Message() != NULL)
 130                 Invalidate();
 131 }
 132
 133
 134 void
 135 BitmapButton::_SetMouseDown(bool down)
 136 {
 137         if (fMouseDown == down)
 138                 return;
 139
 140         fMouseDown = down;
 141
 142         if (Message() != NULL)
 143                 Invalidate();
 144 }