src/apps/deskbar/TruncatableMenuItem.cpp

   1 /*
   2 Open Tracker License
   3
   4 Terms and Conditions
   5
   6 Copyright (c) 1991-2000, Be Incorporated. All rights reserved.
   7
   8 Permission is hereby granted, free of charge, to any person obtaining a copy of
   9 this software and associated documentation files (the "Software"), to deal in
  10 the Software without restriction, including without limitation the rights to
  11 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
  12 of the Software, and to permit persons to whom the Software is furnished to do
  13 so, subject to the following conditions:
  14
  15 The above copyright notice and this permission notice applies to all licensees
  16 and shall be included in all copies or substantial portions of the Software.
  17
  18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY,
  20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21 BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION
  23 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24
  25 Except as contained in this notice, the name of Be Incorporated shall not be
  26 used in advertising or otherwise to promote the sale, use or other dealings in
  27 this Software without prior written authorization from Be Incorporated.
  28
  29 Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered
  30 trademarks of Be Incorporated in the United States and other countries. Other
  31 brand product names are registered trademarks or trademarks of their respective
  32 holders.
  33
  34 All rights reserved.
  35 */
  36
  37
  38 #include "TruncatableMenuItem.h"
  39
  40 #include <StackOrHeapArray.h>
  41
  42 #include <stdlib.h>
  43
  44 #include "BarApp.h"
  45 #include "BarView.h"
  46 #include "TeamMenuItem.h"
  47
  48
  49 const float kVPad = 2.0f;
  50 const float kSwitchWidth = 12.0f;
  51
  52
  53 //      #pragma mark - TTruncatableMenuItem
  54
  55
  56 TTruncatableMenuItem::TTruncatableMenuItem(const char* label, BMessage* message,
  57         char shortcut, uint32 modifiers)
  58         :
  59         BMenuItem(label, message, shortcut, modifiers)
  60 {
  61         fTruncatedString = label;
  62 }
  63
  64
  65 TTruncatableMenuItem::TTruncatableMenuItem(BMenu* menu, BMessage* message)
  66         :
  67         BMenuItem(menu, message)
  68 {
  69 }
  70
  71
  72 TTruncatableMenuItem::TTruncatableMenuItem(BMessage* data)
  73         :
  74         BMenuItem(data)
  75 {
  76 }
  77
  78
  79 TTruncatableMenuItem::~TTruncatableMenuItem()
  80 {
  81 }
  82
  83
  84 const char*
  85 TTruncatableMenuItem::Label()
  86 {
  87         return BMenuItem::Label();
  88 }
  89
  90
  91 const char*
  92 TTruncatableMenuItem::Label(float width)
  93 {
  94         BMenu* menu = Menu();
  95
  96         float maxWidth = menu->MaxContentWidth() - kVPad * 2;
  97         if (dynamic_cast<TTeamMenuItem*>(this) != NULL
  98                 && static_cast<TBarApp*>(be_app)->BarView()->Vertical()
  99                 && static_cast<TBarApp*>(be_app)->Settings()->superExpando) {
 100                 maxWidth -= kSwitchWidth;
 101         }
 102
 103         const char* label = Label();
 104         if (width > 0 && maxWidth > 0 && width > maxWidth) {
 105                 BStackOrHeapArray<char, 128> truncatedLabel(strlen(label) + 4);
 106                 if (truncatedLabel.IsValid()) {
 107                         float labelWidth = menu->StringWidth(label);
 108                         float offset = width - labelWidth;
 109                         TruncateLabel(maxWidth - offset, truncatedLabel);
 110                         fTruncatedString.SetTo(truncatedLabel);
 111                         return fTruncatedString.String();
 112                 }
 113         }
 114
 115         fTruncatedString.SetTo(label);
 116
 117         return label;
 118 }
 119
 120
 121 void
 122 TTruncatableMenuItem::SetLabel(const char* label)
 123 {
 124         fTruncatedString.SetTo(label);
 125
 126         BMenuItem::SetLabel(label);
 127 }