prj/cam/src/dark/statbar.cpp

   1 /*
   2 @Copyright Looking Glass Studios, Inc.
   3 1996,1997,1998,1999,2000 Unpublished Work.
   4 */
   5
   6 // $Header: r:/t2repos/thief2/src/dark/statbar.cpp,v 1.5 2000/02/19 13:09:04 toml Exp $
   7 #include <statbar.h>
   8 #include <2d.h>
   9 #include <imgsrc.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include <memall.h>
  13 #include <dbmem.h>   // must be last header!
  14
  15 ////////////////////////////////////////////////////////////
  16 // cStatusBar implementation
  17 //
  18
  19 cStatusBar::cStatusBar(const sStatusBarDesc &desc )
  20    :sStatusBarDesc(desc),
  21     mpCanvas(NULL)
  22 {
  23    Reset();
  24    memset(&mVal,0,sizeof(mVal));
  25    RectSetNull(&mScreenRect);
  26 }
  27
  28 void cStatusBar::Reset()
  29 {
  30    for (int i = 0; i < kNumValues; i++)
  31       mLastVal[i] = -1;
  32    if (mpCanvas)
  33       gr_free_canvas(mpCanvas);
  34    mpCanvas = NULL;
  35    mLastDrawTime = 0;
  36 }
  37
  38 const Rect& cStatusBar::GetScreenRect()
  39 {
  40    return mScreenRect;
  41 }
  42
  43 void cStatusBar::SetScreenRect(const Rect& r)
  44 {
  45    if (RectWidth(&r) != RectWidth(&mScreenRect)
  46        || RectHeight(&r) != RectHeight(&mScreenRect))
  47       Reset();
  48    mScreenRect = r;
  49 }
  50
  51 void cStatusBar::SetVal(eValue which, int val)
  52 {
  53    if (abs(val - mLastVal[which]) > tolerance)
  54       Reset();
  55
  56    mVal[which] = val;
  57 }
  58
  59 void cStatusBar::DoDraw(const Rect& fillme)
  60 {
  61    gr_set_fcolor(gr_make_screen_fcolor(colors[kFG]));
  62    gr_rect(RECT_UNWRAP(&fillme));
  63 }
  64
  65 BOOL cStatusBar::MakeDrawCanvas() { return TRUE;}
  66
  67 void cStatusBar::Update(ulong time)
  68 {
  69    BOOL expired = refresh >= 0 && time - mLastDrawTime > refresh;
  70
  71    // HideAtMax logic
  72    if ((flags & kHideAtMax)  && expired && mVal[kCur] == mVal[kMax])
  73    {
  74       memcpy(&mLastVal,&mVal,sizeof(mLastVal));
  75       return ;
  76    }
  77
  78    // No screen rect
  79    if (RectCheckNull(&mScreenRect))
  80       return;
  81
  82    BOOL need_refresh = expired|| mpCanvas == NULL;
  83
  84    BOOL bDoCanvas = MakeDrawCanvas();
  85
  86    // if we have changed values, or time has elapsed, refresh
  87    if (need_refresh)
  88    {
  89       // clamp values
  90       int& max = mVal[kMax];
  91       if (max <= 0) max = 1;
  92       int& val = mVal[kCur];
  93       if (val > max) val = max;
  94       if (val < 0) val = 0;
  95
  96       int w = RectWidth(&mScreenRect);
  97       int h = RectHeight(&mScreenRect);
  98
  99       // make the canvas
 100       if (bDoCanvas)
 101          {
 102          if (!mpCanvas)
 103             mpCanvas = gr_alloc_canvas(grd_canvas->bm.type,w,h);
 104          gr_push_canvas(mpCanvas);
 105          gr_clear(0);
 106          }
 107
 108       // interpolate between left and right edge
 109       int xval = val*w/max;
 110
 111       // figure out where the full part of the bar is
 112       Rect fillme = { 0, 0, w, h };
 113       if (flags & kRtoL)
 114          fillme.ul.x = w - xval;
 115       else
 116          fillme.lr.x = xval;
 117
 118       DoDraw(fillme);
 119
 120       if (flags & kDrawBorder)
 121       {
 122          gr_set_fcolor(colors[kBorder]);
 123          gr_box(0,0,w,h);
 124       }
 125
 126       if (bDoCanvas)
 127          gr_pop_canvas();
 128
 129       memcpy(&mLastVal,&mVal,sizeof(mLastVal));
 130       mLastDrawTime = time;
 131    }
 132
 133    if (bDoCanvas)
 134       {
 135       if (flags & kTransparent)
 136          mpCanvas->bm.flags |= BMF_TRANS;
 137
 138       gr_bitmap(&mpCanvas->bm,mScreenRect.ul.x,mScreenRect.ul.y);
 139       }
 140 }
 141
 142
 143
 144
 145