src/os2/gauge.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gauge.cpp
   3 // Purpose:     wxGauge class
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/06/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #ifndef WX_PRECOMP
  15 #include "wx/defs.h"
  16 #include "wx/utils.h"
  17 #endif
  18
  19 #include "wx/os2/private.h"
  20 #include "wx/gauge.h"
  21
  22 /* gas gauge graph control messages--class "zYzGauge" */
  23 #define ZYZG_SETRANGE       (WM_USER + 0)
  24 #define ZYZG_GETRANGE       (WM_USER + 1)
  25 #define ZYZG_SETPOSITION    (WM_USER + 2)
  26 #define ZYZG_GETPOSITION    (WM_USER + 3)
  27 #define ZYZG_SETORIENTATION (WM_USER + 4)
  28 #define ZYZG_GETORIENTATION (WM_USER + 5)
  29 #define ZYZG_SETFGCOLOR     (WM_USER + 6)
  30 #define ZYZG_GETFGCOLOR     (WM_USER + 7)
  31 #define ZYZG_SETBKCOLOR     (WM_USER + 8)
  32 #define ZYZG_GETBKCOLOR     (WM_USER + 9)
  33 #define ZYZG_SETWIDTH3D     (WM_USER + 10)
  34 #define ZYZG_GETWIDTH3D     (WM_USER + 11)
  35 #define ZYZG_SETBEZELFACE   (WM_USER + 12)
  36 #define ZYZG_GETBEZELFACE   (WM_USER + 13)
  37 #define ZYZG_SETDELTAPOS    (WM_USER + 14)
  38
  39 /* orientations for ZYZG_WW_ORIENTATION */
  40 #define ZYZG_ORIENT_LEFTTORIGHT     0
  41 #define ZYZG_ORIENT_RIGHTTOLEFT     1
  42 #define ZYZG_ORIENT_BOTTOMTOTOP     2
  43 #define ZYZG_ORIENT_TOPTOBOTTOM     3
  44
  45 /* gauge styles */
  46 #define ZYZGS_3D        0x8000L     /* control will be 3D       */
  47
  48 /* public function prototypes */
  49 // BOOL _Optlink gaugeInit(HINSTANCE hInstance);
  50
  51 #if !USE_SHARED_LIBRARY
  52 IMPLEMENT_DYNAMIC_CLASS(wxGauge, wxControl)
  53 #endif
  54
  55 bool wxGauge::Create(wxWindow *parent, wxWindowID id,
  56            int range,
  57            const wxPoint& pos,
  58            const wxSize& size,
  59            long style,
  60            const wxValidator& validator,
  61            const wxString& name)
  62 {
  63     static bool wxGaugeOS2Initialised = FALSE;
  64
  65     if ( !wxGaugeOS2Initialised )
  66     {
  67 //TODO:
  68 /*
  69       if (!gaugeInit((HINSTANCE) wxGetInstance()))
  70           wxFatalError("Cannot initalize Gauge library");
  71 */
  72       wxGaugeOS2Initialised = TRUE;
  73     }
  74
  75     SetName(name);
  76     SetValidator(validator);
  77     if (parent) parent->AddChild(this);
  78     m_rangeMax = range;
  79     m_gaugePos = 0;
  80
  81     m_windowStyle = style;
  82
  83     if ( id == -1 )
  84        m_windowId = (int)NewControlId();
  85     else
  86        m_windowId = id;
  87
  88     int x = pos.x;
  89     int y = pos.y;
  90     int width = size.x;
  91     int height = size.y;
  92
  93     // TODO
  94 /*
  95   int x = pos.x;
  96   int y = pos.y;
  97   int width = size.x;
  98   int height = size.y;
  99
 100   long msFlags = WS_CHILD | WS_VISIBLE | WS_TABSTOP;
 101   msFlags |= ZYZGS_3D;
 102
 103   HWND wx_button =
 104       CreateWindowEx(MakeExtendedStyle(m_windowStyle), wxT("zYzGauge"), NULL, msFlags,
 105                     0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
 106                     wxGetInstance(), NULL);
 107
 108   m_hWnd = (WXHWND)wx_button;
 109
 110   // Subclass again for purposes of dialog editing mode
 111   SubclassWin((WXHWND)wx_button);
 112
 113   int wOrient = 0;
 114
 115   if (m_windowStyle & wxGA_HORIZONTAL)
 116     wOrient = ZYZG_ORIENT_LEFTTORIGHT;
 117   else
 118     wOrient = ZYZG_ORIENT_BOTTOMTOTOP;
 119
 120   SendMessage(wx_button, ZYZG_SETORIENTATION, wOrient, 0);
 121   SendMessage(wx_button, ZYZG_SETRANGE, range, 0);
 122
 123   SendMessage(GetHwnd(), ZYZG_SETFGCOLOR, 0, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
 124   SendMessage(GetHwnd(), ZYZG_SETBKCOLOR, 0, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
 125
 126   SetFont(parent->GetFont());
 127
 128   if (width == -1)
 129     width = 50;
 130   if (height == -1)
 131     height = 50;
 132   SetSize(x, y, width, height);
 133
 134   ShowWindow(GetHwnd(), SW_SHOW);
 135 */
 136   return TRUE;
 137 }
 138
 139 void wxGauge::SetShadowWidth(int w)
 140 {
 141     // TODO optional ::SendMessage(GetHwnd(), ZYZG_SETWIDTH3D, w, 0);
 142 }
 143
 144 void wxGauge::SetBezelFace(int w)
 145 {
 146     // TODO optional  ::SendMessage(GetHwnd(), ZYZG_SETBEZELFACE, w, 0);
 147 }
 148
 149 void wxGauge::SetRange(int r)
 150 {
 151     m_rangeMax = r;
 152     // TODO ::SendMessage(GetHwnd(), ZYZG_SETRANGE, r, 0);
 153 }
 154
 155 void wxGauge::SetValue(int pos)
 156 {
 157     m_gaugePos = pos;
 158     // TODO ::SendMessage(GetHwnd(), ZYZG_SETPOSITION, pos, 0);
 159 }
 160
 161 int wxGauge::GetShadowWidth() const
 162 {
 163     // TODO return (int) ::SendMessage(GetHwnd(), ZYZG_GETWIDTH3D, 0, 0);
 164     return 0;
 165 }
 166
 167 int wxGauge::GetBezelFace() const
 168 {
 169     // TODO return (int) ::SendMessage(GetHwnd(), ZYZG_GETBEZELFACE, 0, 0);
 170     return 0;
 171 }
 172
 173 int wxGauge::GetRange() const
 174 {
 175     // TODO return (int) ::SendMessage(GetHwnd(), ZYZG_GETRANGE, 0, 0);
 176     return m_rangeMax;
 177 }
 178
 179 int wxGauge::GetValue() const
 180 {
 181     // TODO return (int) ::SendMessage(GetHwnd(), ZYZG_GETPOSITION, 0, 0);
 182     return m_gaugePos;
 183 }
 184
 185 bool wxGauge::SetForegroundColour(const wxColour& col)
 186 {
 187     if ( !wxControl::SetForegroundColour(col) )
 188         return FALSE;
 189
 190     // TODO ::SendMessage(GetHwnd(), ZYZG_SETFGCOLOR, 0, RGB(col.Red(), col.Green(), col.Blue()));
 191
 192     return TRUE;
 193 }
 194
 195 bool wxGauge::SetBackgroundColour(const wxColour& col)
 196 {
 197     if ( !wxControl::SetBackgroundColour(col) )
 198         return FALSE;
 199
 200     // TODO ::SendMessage(GetHwnd(), ZYZG_SETBKCOLOR, 0, RGB(col.Red(), col.Green(), col.Blue()));
 201
 202     return TRUE;
 203 }
 204
 205 ///** zyz3d.c
 206 // *
 207 // *  DESCRIPTION:
 208 // *      This module contains functions for creating nifty 3D borders
 209 // *      around controls like zYzGauge.
 210 // *
 211 // *  HISTORY:
 212 // *      3/14/91     cjp     put in this comment
 213 // *      6/19/92     cjp     touched it a bit
 214 // *
 215 // ** cjp */
 216 // COPYRIGHT:
 217 //
 218 //   (C) Copyright Microsoft Corp. 1992.  All rights reserved.
 219 //
 220 //   You have a royalty-free right to use, modify, reproduce and
 221 //   distribute the Sample Files (and/or any modified version) in
 222 //   any way you find useful, provided that you agree that
 223 //   Microsoft has no warranty obligations or liability for any
 224 //   Sample Application Files which are modified.
 225 //
 226
 227
 228 ///* get the includes we need */
 229 //#define INCL_PM
 230 //#include <os2.h>
 231
 232 ///* misc. control flag defines */
 233 //#define DRAW3D_IN           0x0001
 234 //#define DRAW3D_OUT          0x0002
 235
 236 //#define DRAW3D_TOPLINE      0x0004
 237 //#define DRAW3D_BOTTOMLINE   0x0008
 238 //#define DRAW3D_LEFTLINE     0x0010
 239 //#define DRAW3D_RIGHTLINE    0x0020
 240
 241
 242 ///* public function prototypes */
 243 //void _Optlink Draw3DFaceFrame(HDC, LPRECT, WORD);
 244 //void _Optlink Draw3DRect(HDC, LPRECT, WORD, WORD);
 245 //void _Optlink Draw3DLine(HDC, WORD, WORD, WORD, WORD, WORD);
 246
 247
 248 ///** void _Optlink Draw3DFaceFrame(HDC hdc, LPRECT rc, WORD wWidth)
 249 // *
 250 // *  DESCRIPTION:
 251 // *      This function draws a flat frame with the current button-face
 252 // *      color.
 253 // *
 254 // *  ARGUMENTS:
 255 // *      HDC hdc     :   The DC to draw into.
 256 // *
 257 // *      LPRECT rc   :   The containing rect for the new frame.
 258 // *
 259 // *      WORD wWidth :   The width of the frame to draw.
 260 // *
 261 // *  RETURN (void _Optlink):
 262 // *      The frame will have been drawn into the DC.
 263 // *
 264 // *  NOTES:
 265 // *
 266 // ** cjp */
 267
 268 //void _Optlink Draw3DFaceFrame(HDC hdc, RECTL* rc, WORD wWidth)
 269 //{
 270 //    RECTL   rc1;
 271 //    DWORD   rgbOld;
 272
 273 //    /* don't go through a bunch of work if we don't have to */
 274 //    if (!wWidth)
 275 //        return;
 276
 277 //    /* set up color to be button-face color--so it may not be gray */
 278 //    rgbOld = SetBkColor(hdc, GetSysColor(COLOR_BTNFACE));
 279
 280 //    /* perform CopyRect w/o bloody windows style overhead */
 281 //    rc1 = *rc;
 282
 283     /* top */
 284 //    rc1.top = rc->top;
 285 //    rc1.left = rc->left;
 286 //    rc1.bottom = rc->top + wWidth;
 287 //    rc1.right = rc->right;
 288
 289     /* blast it out */
 290 //    ExtTextOut(hdc, rc1.left, rc1.top, ETO_OPAQUE, &rc1, NULL, 0, NULL);
 291
 292     /* right */
 293 //    rc1.left = rc->right - wWidth;
 294 //    rc1.bottom = rc->bottom;
 295
 296     /* blast this part now */
 297 //    ExtTextOut(hdc, rc1.left, rc1.top, ETO_OPAQUE, &rc1, NULL, 0, NULL);
 298
 299     /* left */
 300 //    rc1.left = rc->left;
 301 //    rc1.right = rc->left + wWidth;
 302
 303     /* and another part */
 304 //    ExtTextOut(hdc, rc1.left, rc1.top, ETO_OPAQUE, &rc1, NULL, 0, NULL);
 305
 306     /* bottom */
 307 //    rc1.right = rc->right;
 308 //    rc1.top = rc->bottom - wWidth;
 309
 310     /* finish it off */
 311 //    ExtTextOut(hdc, rc1.left, rc1.top, ETO_OPAQUE, &rc1, NULL, 0, NULL);
 312
 313     /* restore the old bk color */
 314 //    SetBkColor(hdc, rgbOld);
 315 //} /* Draw3DFaceFrame() */
 316
 317
 318 ///** void _Optlink Draw3DRect(HDC, LPRECT, WORD, WORD)
 319 // *
 320 // *  DESCRIPTION:
 321 // *      Draws a 3D rectangle that is shaded.  wFlags can be used to
 322 // *      control how the rectangle looks.
 323 // *
 324 // *  ARGUMENTS:
 325 // *      HDC hdc             :   Handle to the device context that will be
 326 // *                              used to display the rectangle.
 327 // *
 328 // *      RECT rect           :   A rectangle describing the dimensions of
 329 // *                              the rectangle in device coordinates.
 330 // *
 331 // *      WORD wShadowWidth   :   Width of the shadow in device coordinates.
 332 // *
 333 // *      WORD wFlags         :   The following flags may be passed to describe
 334 // *                              the style of the rectangle:
 335 // *
 336 // *                              DRAW3D_IN   :   The shadow is drawn such that
 337 // *                              the box appears to be sunk in to the screen.
 338 // *                              This is default if 0 is passed.
 339 // *
 340 // *                              DRAW3D_OUT  :   The shadow is drawn such that
 341 // *                              the box appears to be sticking out of the
 342 // *                              screen.
 343 // *
 344 // *  RETURN (void _Optlink):
 345 // *      The 3D looking rectangle will have been drawn into the DC.
 346 // *
 347 // *  NOTES:
 348 // *
 349 // ** cjp */
 350
 351 //void _Optlink Draw3DRect(HDC hdc, LPRECT lpRect,
 352 //                               WORD wShadowWidth, WORD wFlags)
 353 //{
 354 //    /* sanity check--don't work if you don't have to! */
 355 //    if (!wShadowWidth || !RectVisible(hdc, lpRect))
 356 //        return;
 357
 358     /* draw the top line */
 359 //    Draw3DLine(hdc, lpRect->left, lpRect->top,
 360 //                    lpRect->right - lpRect->left,
 361 //                    wShadowWidth, DRAW3D_TOPLINE | wFlags);
 362
 363     /* right line */
 364 //    Draw3DLine(hdc, lpRect->right, lpRect->top,
 365 //                    lpRect->bottom - lpRect->top,
 366 //                    wShadowWidth, DRAW3D_RIGHTLINE | wFlags);
 367
 368     /* bottom line */
 369 //    Draw3DLine(hdc, lpRect->left, lpRect->bottom,
 370 //                    lpRect->right - lpRect->left,
 371 //                    wShadowWidth, DRAW3D_BOTTOMLINE | wFlags);
 372
 373     /* left line */
 374 //    Draw3DLine(hdc, lpRect->left, lpRect->top,
 375 //                    lpRect->bottom - lpRect->top,
 376 //                    wShadowWidth, DRAW3D_LEFTLINE | wFlags);
 377 //} /* Draw3DRect() */
 378
 379
 380 ///** void _Optlink Draw3DLine(HDC hdc, WORD x, WORD y, WORD nLen,
 381 // *
 382 // *  DESCRIPTION:
 383 // *      Draws a 3D line that can be used to make a 3D box.
 384 // *
 385 // *  ARGUMENTS:
 386 // *      HDC hdc             :   Handle to the device context that will be
 387 // *                              used to display the 3D line.
 388 // *
 389 // *      WORD x, y           :   Coordinates of the beginning of the line.
 390 // *                              These coordinates are in device units and
 391 // *                              represent the _outside_ most point. Horiz-
 392 // *                              ontal lines are drawn from left to right and
 393 // *                              vertical lines are drawn from top to bottom.
 394 // *
 395 // *      WORD wShadowWidth   :   Width of the shadow in device coordinates.
 396 // *
 397 // *      WORD  wFlags        :   The following flags may be passed to
 398 // *                              describe the style of the 3D line:
 399 // *
 400 // *                              DRAW3D_IN   :   The shadow is drawn such that
 401 // *                              the box appears to be sunk in to the screen.
 402 // *                              This is default if 0 is passed.
 403 // *
 404 // *                              DRAW3D_OUT  :   The shadow is drawn such that
 405 // *                              the box appears to be sticking out of the
 406 // *                              screen.
 407 // *
 408 // *                              DRAW3D_TOPLINE, _BOTTOMLINE, _LEFTLINE, and
 409 // *                              _RIGHTLINE  :   Specifies that a "top",
 410 // *                              "Bottom", "Left", or"Right" line is to be
 411 // *                              drawn.
 412 // *
 413 // *  RETURN (void _Optlink):
 414 // *      The line will have been drawn into the DC.
 415 // *
 416 // *  NOTES:
 417 // *
 418 // ** cjp */
 419
 420 //void _Optlink Draw3DLine(HDC hdc, WORD x, WORD y, WORD nLen,
 421 //                               WORD wShadowWidth, WORD wFlags)
 422 //{
 423 //    HBRUSH  hOldBrush;
 424 //    HPEN    hOldPen;
 425 //    BOOL    fDark;
 426 //    POINT   Point[ 4 ];         /* define a polgon with 4 points    */
 427
 428 //    /* if width is zero, don't do nothin'! */
 429 //    if (!wShadowWidth)
 430 //        return;
 431
 432     /* define shape of polygon--origin is always the same */
 433 //    Point[0].x = x;
 434 //    Point[0].y = y;
 435
 436 //    /*  To do this we'll simply draw a polygon with four sides, using
 437 //     *  the appropriate brush.  I dare you to ask me why this isn't a
 438 //     *  switch/case!
 439 //     */
 440 //    if (wFlags & DRAW3D_TOPLINE)
 441 //    {
 442 //        /* across to right */
 443 //        Point[1].x = x + nLen - (wShadowWidth == 1 ? 1 : 0);
 444 //        Point[1].y = y;
 445
 446         /* down/left */
 447 //        Point[2].x = x + nLen - wShadowWidth;
 448 //        Point[2].y = y + wShadowWidth;
 449
 450         /* accross to left */
 451 //        Point[3].x = x + wShadowWidth;
 452 //        Point[3].y = y + wShadowWidth;
 453
 454         /* select 'dark' brush if 'in'--'light' for 'out' */
 455 //        fDark = (wFlags & DRAW3D_IN) ? TRUE : FALSE;
 456 //    }
 457
 458     /* possibly the bottom? */
 459 //    else if (wFlags & DRAW3D_BOTTOMLINE)
 460 //    {
 461         /* across to right */
 462 //        Point[1].x = x + nLen;
 463 //        Point[1].y = y;
 464
 465         /* up/left */
 466 //        Point[2].x = x + nLen - wShadowWidth;
 467 //        Point[2].y = y - wShadowWidth;
 468
 469         /* accross to left */
 470 //        Point[3].x = x + wShadowWidth;
 471 //        Point[3].y = y - wShadowWidth;
 472
 473         /* select 'light' brush if 'in' */
 474 //        fDark = (wFlags & DRAW3D_IN) ? FALSE : TRUE;
 475 //    }
 476
 477     /* ok, it's gotta be left? */
 478 //    else if (wFlags & DRAW3D_LEFTLINE)
 479 //    {
 480         /* down */
 481 //        Point[1].x = x;
 482 //        Point[1].y = y + nLen - (wShadowWidth == 1 ? 1 : 0);
 483
 484         /* up/right */
 485 //        Point[2].x = x + wShadowWidth;
 486 //        Point[2].y = y + nLen - wShadowWidth;
 487
 488         /* down */
 489 //        Point[3].x = x + wShadowWidth;
 490 //        Point[3].y = y + wShadowWidth;
 491
 492         /* select 'dark' brush if 'in'--'light' for 'out' */
 493 //        fDark = (wFlags & DRAW3D_IN) ? TRUE : FALSE;
 494 //    }
 495
 496     /* well maybe it's for the right side? */
 497 //    else if (wFlags & DRAW3D_RIGHTLINE)
 498 //    {
 499         /* down */
 500 //        Point[1].x = x;
 501 //        Point[1].y = y + nLen;
 502
 503         /* up/left */
 504 //        Point[2].x = x - wShadowWidth;
 505 //        Point[2].y = y + nLen - wShadowWidth;
 506
 507         /* up */
 508 //        Point[3].x = x - wShadowWidth;
 509 //        Point[3].y = y + wShadowWidth;
 510
 511         /* select 'light' brush if 'in' */
 512 //        fDark = (wFlags & DRAW3D_IN) ? FALSE : TRUE;
 513 //    }
 514
 515     /* bad drugs? */
 516 //    else return;
 517
 518     /* select NULL_PEN for no borders */
 519 //    hOldPen = (HPEN) SelectObject(hdc, GetStockObject(NULL_PEN));
 520
 521     /* select the appropriate color for the fill */
 522 //    if (fDark)
 523 //        hOldBrush = (HBRUSH) SelectObject(hdc, GetStockObject(GRAY_BRUSH));
 524 //    else
 525 //        hOldBrush = (HBRUSH) SelectObject(hdc, GetStockObject(WHITE_BRUSH));
 526
 527     /* finally, draw the dern thing */
 528 //    Polygon(hdc, (LPPOINT)&Point, 4);
 529
 530     /* restore what we killed */
 531 //    SelectObject(hdc, hOldBrush);
 532 //    SelectObject(hdc, hOldPen);
 533 //} /* Draw3DLine() */
 534
 535 /** EOF: zyz3d.c **/
 536
 537 ///** zyzgauge.c
 538 // *
 539 // *  DESCRIPTION:
 540 // *      Yet another 'Gas Gauge Custom Control.'  This control gives you
 541 // *      a 'progress bar' class (named zYzGauge) for use in your applications.
 542 // *      You can set the range, position, font, color, orientation, and 3d
 543 // *      effect of the gauge by sending messages to the control.
 544 // *
 545 // *      Before you can use this control, you MUST first export the window
 546 // *      procedure for the control (or define it with the _export keyword):
 547 // *
 548 // *          EXPORTS     gaugeWndProc
 549 // *
 550 // *      You then need initialize the class before you use it:
 551 // *
 552 // *          if (!gaugeInit(hInstance))
 553 // *              die a horrible death
 554 // *          else
 555 // *              you are good to go
 556 // *
 557 // *      The colors used by the control default to black and white if you
 558 // *      are running on a mono-display.  They default to blue and white
 559 // *      if you are on a color display.  You enable the 3D effect by setting
 560 // *      the ZYZGS_3D style flag in the styles field of the control (like
 561 // *      any other control).
 562 // *
 563 // *      To select your own colors, you can send the ZYZG_SETFGCOLOR and
 564 // *      ZYZG_SETBKCOLOR messages to set the foreground (percent done) and
 565 // *      background (percent not done) colors.  The lParam is the RGB()
 566 // *      value--wParam is ignored.
 567 // *
 568 // *      In all of the following ZYZG_??? messages, the arguments are
 569 // *      WORDS.  If you are setting parameters, the value is sent as
 570 // *      the wParam (lParam is ignored).  If you are getting parameters,
 571 // *      the value is returned as a LONG and should be cast to a *signed*
 572 // *      integer.
 573 // *
 574 // *      To set the depth of the 3D effect (if enabled), you can send the
 575 // *      ZYZG_SETBEZELFACE and ZYZG_SETWIDTH3D messages.  The bezel face
 576 // *      is the flat top on the 3D border--its color will be that of the
 577 // *      button-face.  The 3D width is the width of the bezel itself; inside
 578 // *      and outside.  The light color is white, the dark color is gray.
 579 // *      Both widths *can* be zero--both default to 2 which looks to me.
 580 // *
 581 // *      The range of the control can be set by sending the ZYZG_SETRANGE
 582 // *      message to the control.  It can be any integer from 1 to 32767.
 583 // *      What this specifies is the number of pieces that create a whole.
 584 // *      The default is 100.  You can get the current range setting by
 585 // *      sending the ZYZG_GETRANGE message to the control.
 586 // *
 587 // *      The position (number of pieces out of the whole have been used) is
 588 // *      set with the ZYZG_SETPOSITION message.  It can be any integer from
 589 // *      0 to the current range setting of the control--it will be clipped
 590 // *      if the position is out of bounds.  The default position is 0.  You
 591 // *      can get the current position at any time with the ZYZG_GETPOSITION
 592 // *      message.
 593 // *
 594 // *      You can also set the range using a delta from the current range.
 595 // *      This is done by sending the ZYZG_SETDELTAPOS message with wParam
 596 // *      set to a _signed_ integer value within the range of the control.
 597 // *
 598 // *      The font used for the percentage text can be set using the standard
 599 // *      WM_SETFONT message.  You can get the current font at any time with
 600 // *      the WM_GETFONT message.
 601 // *
 602 // *      The orientation can be left to right, right to left, bottom to top,
 603 // *      or top to bottom.  Whatever suits your needs.  You set this by
 604 // *      sending the ZYZG_ORIENTATION message to the control with one of
 605 // *      the following values (default is ZYZG_ORIENT_LEFTTORIGHT):
 606 // *
 607 // *          ZYZG_ORIENT_LEFTTORIGHT (0)
 608 // *          ZYZG_ORIENT_RIGHTTOLEFT (1)
 609 // *          ZYZG_ORIENT_BOTTOMTOTOP (2)
 610 // *          ZYZG_ORIENT_TOPTOBOTTOM (3)
 611 // *
 612 // *  HISTORY:
 613 // *      3/12/91     cjp     put in this comment
 614 // *      6/19/92     cjp     touched it a bit
 615 // *
 616 // ** cjp */
 617 // COPYRIGHT:
 618 //
 619 //   (C) Copyright Microsoft Corp. 1992.  All rights reserved.
 620 //
 621 //   You have a royalty-free right to use, modify, reproduce and
 622 //   distribute the Sample Files (and/or any modified version) in
 623 //   any way you find useful, provided that you agree that
 624 //   Microsoft has no warranty obligations or liability for any
 625 //   Sample Application Files which are modified.
 626 //
 627
 628
 629 /* get the includes we need */
 630 //#if !defined(__GNUWIN32__) && !defined(__SALFORDC__)
 631 //#include <malloc.h>
 632 //#endif
 633 //#include <stdio.h>
 634 //#include <string.h>
 635 //#include <stdlib.h>
 636 // #include "zyz3d.h"
 637 // #include "zyzgauge.h"
 638
 639
 640 /* static global variables */
 641 //static wxChar gszzYzGaugeClass[] = wxT("zYzGauge");
 642
 643
 644 /* window word position definitions */
 645 //#define ZYZG_WW_PZYZGAUGE   0
 646 /* #define ZYZG_WW_EXTRABYTES  2 */
 647 //#define ZYZG_WW_EXTRABYTES  4
 648
 649
 650 /* control block structure typedef */
 651 //typedef struct tZYZGAUGE
 652 //{
 653 //    WORD    wRange;
 654 //    WORD    wPosition;
 655 //    WORD    wOrientation;
 656 //    WORD    wWidth3D;
 657 //    WORD    wWidthBezelFace;
 658 //    HFONT   hFont;
 659 //    DWORD   rgbTextColor;
 660 //    DWORD   rgbBkColor;
 661
 662 //} ZYZGAUGE, *PZYZGAUGE, FAR *LPZYZGAUGE;
 663
 664
 665 /* some default values for the control */
 666 //#define ZYZG_DEF_RANGE          100
 667 //#define ZYZG_DEF_POSITION       0
 668 //#define ZYZG_DEF_ORIENTATION    ZYZG_ORIENT_LEFTTORIGHT
 669 //#define ZYZG_DEF_WIDTH3D        2
 670 //#define ZYZG_DEF_BEZELFACE      2
 671
 672
 673
 674 /* the default settings for drawing colors--display dependent */
 675 //static DWORD    rgbDefTextColor;
 676 //static DWORD    rgbDefBkColor;
 677 //static BOOL     fSupport3D;
 678
 679 //#if !defined(APIENTRY)    // NT defines APIENTRY, 3.x not
 680 //#define APIENTRY _Optlink
 681 //#endif
 682
 683 //#ifdef __WIN32__
 684 //#define _EXPORT /**/
 685 //#else
 686 //#define _EXPORT _export
 687 //typedef signed short int SHORT ;
 688 //#endif
 689
 690 /* internal function prototypes */
 691 //static void PASCAL gaugePaint(HWND, HDC);
 692 /* LRESULT _Optlink */
 693 //LRESULT APIENTRY _EXPORT gaugeWndProc(HWND, UINT, WPARAM, LPARAM);
 694
 695
 696
 697 ///** BOOL _Optlink gaugeInit(HINSTANCE hInstance)
 698 // *
 699 // *  DESCRIPTION:
 700 // *      Registers the window class for the zYzGauge control.  Performs
 701 // *      other initialization for the zYzGauge text control.  This must
 702 // *      be done before the zYzGauge control is used--or it will fail
 703 // *      and your dialog box will not open!
 704 // *
 705 // *  ARGUMENTS:
 706 // *      HINSTANCE hInstance :   Instance handle to register class with.
 707 // *
 708 // *  RETURN (BOOL FAR):
 709 // *      The return value is TRUE if the zYzGauge class was successfully
 710 // *      registered.  It is FALSE if the initialization fails.
 711 // *
 712 // *  NOTES:
 713 // *
 714 // ** cjp */
 715
 716 //#pragma alloc_text(init, gaugeInit)
 717
 718 //BOOL _Optlink gaugeInit(HINSTANCE hInstance)
 719 //{
 720 //    static BOOL fRegistered = FALSE;
 721 //    WNDCLASS    wc;
 722 //    HDC         hdc;
 723
 724     /* assume already registered if not first instance */
 725 //    if (fRegistered)
 726 //        return (TRUE);
 727
 728     /* fill in the class structure for the zyzgauge control */
 729 //    wc.hCursor          = LoadCursor(NULL, IDC_ARROW);
 730 //    wc.hIcon            = NULL;
 731 //    wc.lpszMenuName     = NULL;
 732 //    wc.lpszClassName    = gszzYzGaugeClass;
 733 //    wc.hbrBackground    = (HBRUSH)(COLOR_WINDOW + 1);
 734 //    wc.hInstance        = hInstance;
 735
 736 //#ifdef ZYZGAUGE_DLL
 737 //    wc.style            = CS_GLOBALCLASS | CS_HREDRAW | CS_VREDRAW;
 738 //#else
 739 //    wc.style            = CS_HREDRAW | CS_VREDRAW;
 740 //#endif
 741
 742 //    wc.lpfnWndProc      = gaugeWndProc;
 743 //    wc.cbClsExtra       = 0;
 744 //    wc.cbWndExtra       = ZYZG_WW_EXTRABYTES;
 745
 746     /* attempt to register it--return FALSE if fail */
 747 //    if (!RegisterClass(&wc))
 748 //        return (FALSE);
 749
 750     /*  Get a DC to determine whether device is mono or not, and set
 751      *  default foreground/background colors as appropriate.
 752      */
 753 //    hdc = CreateIC(wxT("DISPLAY"), NULL, NULL, 0L) ;
 754 //    if (hdc)
 755 //    {
 756         /* check for mono-display */
 757 //        if ((GetDeviceCaps(hdc, BITSPIXEL) == 1) &&
 758 //             (GetDeviceCaps(hdc, PLANES) == 1))
 759 //        {
 760             /* using a mono DC--white foreground, black background */
 761 //            rgbDefTextColor = RGB(255, 255, 255);
 762 //            rgbDefBkColor = RGB(0, 0, 0);
 763 //        }
 764
 765         /* good! we have color: blue foreground, white background */
 766 //        else
 767 //        {
 768 //            rgbDefTextColor = RGB(0, 0, 255);
 769 //            rgbDefBkColor = RGB(255, 255, 255);
 770 //        }
 771
 772         /* need at _least_ 8 for two shades of gray (>=VGA) */
 773 //        fSupport3D = (GetDeviceCaps(hdc, NUMCOLORS) >= 8) ? TRUE : FALSE;
 774
 775         /* get rid of the DC (IC) */
 776 //        DeleteDC(hdc);
 777 //    }
 778
 779     /* uh-oh... can't get DC (IC)... fail */
 780 //    else
 781 //    {
 782         /* unregister the class */
 783 //        UnregisterClass(gszzYzGaugeClass, hInstance);
 784 //        return (FALSE);
 785 //    }
 786
 787     /* return success */
 788 //    return (fRegistered = TRUE);
 789 //} /* gaugeInit() */
 790
 791
 792 /** static void PASCAL gaugePaint(HWND hwnd, HDC hdc)
 793 // *
 794 // *  DESCRIPTION:
 795 // *      This function is responsible for painting the zYzGauge control.
 796 // *
 797 // *  ARGUMENTS:
 798 // *      HWND hwnd   :   The window handle for the gauge.
 799 // *
 800 // *      HDC hdc     :   The DC for the gauge's window.
 801 // *
 802 // *  RETURN (void):
 803 // *      The control will have been painted.
 804 // *
 805 // *  NOTES:
 806 // *
 807 // ** cjp */
 808
 809 //static void PASCAL gaugePaint(HWND hwnd, HDC hdc)
 810 //{
 811 //    PZYZGAUGE   pgauge;
 812 //    WORD        iRange, iPos;
 813 //    WORD        Offset = 1;
 814 //    DWORD       dwExtent;
 815 //    RECT        rc1, rc2;
 816 //    HFONT       hFont;
 817 //    wxChar      ach[ 6 ];
 818 //    WORD        dx, dy, wGomerX, wGomerY;
 819 ///* Win32s has no GetTextExtent(); let's try GetTextExtentPoint() instead,
 820 // * which needs a SIZE* parameter */
 821 //#if defined(__WIN32__)
 822 //    SIZE size;
 823 //#endif
 824
 825 //    /* get pointer to the control's control block */
 826 //    pgauge = (PZYZGAUGE)GetWindowWord(hwnd, ZYZG_WW_PZYZGAUGE);
 827 //    pgauge = (PZYZGAUGE)GetWindowLong(hwnd, ZYZG_WW_PZYZGAUGE);
 828
 829     /* set the colors into for the gauge into the control */
 830 //    SetTextColor(hdc, pgauge->rgbTextColor);
 831 //    SetBkColor(hdc, pgauge->rgbBkColor);
 832
 833     /* draw black rectangle for gauge */
 834 //    GetClientRect(hwnd, &rc1);
 835
 836     /* draw a black border on the _outside_ */
 837 //    FrameRect(hdc, &rc1, (HBRUSH) GetStockObject(BLACK_BRUSH));
 838
 839     /* we want to draw _just inside_ the black border */
 840 //    InflateRect(&rc1, -1, -1);
 841
 842     /* one line thick so far... */
 843 //    Offset = (WORD) 1;
 844
 845     /* for 3D stuff, we need to have at least two shades of gray */
 846 //    if ((GetWindowLong(hwnd, GWL_STYLE) & ZYZGS_3D) && fSupport3D)
 847 //    {
 848 //        Draw3DRect(hdc, &rc1, pgauge->wWidth3D, DRAW3D_OUT);
 849 //    InflateRect(&rc1, ~(pgauge->wWidth3D), ~(pgauge->wWidth3D));
 850
 851 //        Draw3DFaceFrame(hdc, &rc1, pgauge->wWidthBezelFace);
 852 //    InflateRect(&rc1, ~(pgauge->wWidthBezelFace), ~(pgauge->wWidthBezelFace));
 853
 854 //        Draw3DRect(hdc, &rc1, pgauge->wWidth3D, DRAW3D_IN);
 855 //    InflateRect(&rc1, ~(pgauge->wWidth3D), ~(pgauge->wWidth3D));
 856
 857         /* draw a black border on the _inside_ */
 858 //        FrameRect(hdc, &rc1, (HBRUSH) GetStockObject(BLACK_BRUSH));
 859
 860         /* we want to draw _just inside_ the black border */
 861 //        InflateRect(&rc1, -1, -1);
 862
 863         /* add all the other pixels into the border width */
 864 //        Offset += (2 * pgauge->wWidth3D) + pgauge->wWidthBezelFace + 1;
 865 //    }
 866
 867     /* dup--one rc for 'how much filled', one rc for 'how much empty' */
 868 //    rc2 = rc1;
 869
 870     /* get the range--make sure it's a valid range */
 871 //    if ((iRange = pgauge->wRange) <= 0)
 872 //        iRange = 1;
 873
 874     /* get the position--greater than 100% would be bad */
 875 //    if ((iPos = pgauge->wPosition) > iRange)
 876 //        iPos = iRange;
 877
 878     /* compute the actual size of the gauge */
 879 //    dx = rc1.right - rc1.left;
 880 //    dy = rc1.bottom - rc1.top;
 881 //    wGomerX = (WORD)((DWORD)iPos * dx / iRange);
 882 //    wGomerY = (WORD)((DWORD)iPos * dy / iRange);
 883
 884     /* get the orientation and munge rects accordingly */
 885 //    switch (pgauge->wOrientation)
 886 //    {
 887 //        case ZYZG_ORIENT_RIGHTTOLEFT:
 888 //            rc1.left = rc2.right = rc1.right - wGomerX;
 889 //            break;
 890
 891 //        case ZYZG_ORIENT_BOTTOMTOTOP:
 892 //            rc1.top = rc2.bottom = rc1.bottom - wGomerY;
 893 //            break;
 894
 895 //        case ZYZG_ORIENT_TOPTOBOTTOM:
 896 //            rc1.bottom = rc2.top += wGomerY;
 897 //            break;
 898
 899 //        default:
 900 //            rc1.right = rc2.left += wGomerX;
 901 //            break;
 902 //    } /* switch () */
 903
 904     /* select the correct font */
 905 //    hFont = (HFONT) SelectObject(hdc, pgauge->hFont);
 906
 907     /* build up a string to blit out--ie the meaning of life: "42%" */
 908 //    wsprintf(ach, wxT("%3d%%"), (WORD)((DWORD)iPos * 100 / iRange));
 909 /* Win32s has no GetTextExtent(); let's try GetTextExtentPoint() instead */
 910 //#if defined(__WIN32__)
 911 //    GetTextExtentPoint(hdc, ach, wGomerX = lstrlen(ach), &size);
 912 //    dwExtent = size.cx;
 913 //#else
 914 //    dwExtent = GetTextExtent(hdc, ach, wGomerX = lstrlen(ach));
 915 //#endif
 916
 917
 918     /*  Draw the finished (ie the percent done) side of box.  If
 919      *  ZYZG_WW_POSITION is 42, (in range of 0 to 100) this ExtTextOut
 920      *  draws the meaning of life (42%) bar.
 921      */
 922 //    ExtTextOut(hdc, (dx - LOWORD(dwExtent)) / 2 + Offset,
 923 //                    (dy - HIWORD(dwExtent)) / 2 + Offset,
 924 //                    ETO_OPAQUE | ETO_CLIPPED, &rc2, ach, wGomerX, NULL);
 925
 926     /*  Reverse fore and back colors for drawing the undone (ie the non-
 927      *  finished) side of the box.
 928      */
 929 //    SetBkColor(hdc, pgauge->rgbTextColor);
 930 //    SetTextColor(hdc, pgauge->rgbBkColor);
 931
 932 //    ExtTextOut(hdc, (dx - LOWORD(dwExtent)) / 2 + Offset,
 933 //                    (dy - HIWORD(dwExtent)) / 2 + Offset,
 934 //                    ETO_OPAQUE | ETO_CLIPPED, &rc1, ach, wGomerX, NULL);
 935
 936     /* unselect the font */
 937 //    SelectObject(hdc, hFont);
 938 //} /* gaugePaint() */
 939
 940
 941 /** LRESULT _Optlink gaugeWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 942 // *
 943 // *  DESCRIPTION:
 944 // *      This is the control's window procedure.  Its purpose is to handle
 945 // *      special messages for this custom control.
 946 // *
 947 // *      The special control messages for the gauge control are:
 948 // *
 949 // *          ZYZG_SETRANGE       :   Sets the range of the gauge.  In other
 950 // *                                  words, the number of parts that make a
 951 // *                                  whole.
 952 // *
 953 // *          ZYZG_GETRANGE       :   Returns the current range of the gauge.
 954 // *
 955 // *          ZYZG_SETORIENTATION :   Sets the orientation of the gauge.  This
 956 // *                                  can be one of the ZYZG_ORIENT_?? msgs.
 957 // *
 958 // *          ZYZG_GETORIENTATION :   Gets the current orientation of the
 959 // *                                  gauge.
 960 // *
 961 // *          ZYZG_SETPOSITION    :   Sets the current position of the gauge.
 962 // *                                  In other words, how many pieces of the
 963 // *                                  whole have been used.
 964 // *
 965 // *          ZYZG_GETPOSITION    :   Gets the current position of the gauge.
 966 // *
 967 // *          ZYZG_SETDELTAPOS    :   Sets the position of the gauge +/- the
 968 // *                                  specified amount.
 969 // *
 970 // *          ZYZG_SETFGCOLOR     :   Sets the foreground (percent done) color.
 971 // *
 972 // *          ZYZG_GETFGCOLOR     :   Gets the foreground (percent done) color.
 973 // *
 974 // *          ZYZG_SETBKCOLOR     :   Sets the background (percent not done)
 975 // *                                  color.
 976 // *
 977 // *          ZYZG_GETBKCOLOR     :   Gets the background (percent not done)
 978 // *                                  color.
 979 // *
 980 // *          WM_SETFONT          :   Sets the font to use for the percentage
 981 // *                                  text of the gauge.
 982 // *
 983 // *          WM_GETFONT          :   Gets the current font in use by the
 984 // *                                  gauge.
 985 // *
 986 // *  NOTES:
 987 // *
 988 // ** cjp */
 989
 990 /* LRESULT _Optlink */
 991
 992 //LRESULT APIENTRY _EXPORT gaugeWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 993 //{
 994 //    HFONT       hFont;
 995 //    PAINTSTRUCT ps;
 996 //    PZYZGAUGE   pgauge;
 997 //    RECT        rc;
 998
 999 //    pgauge = (PZYZGAUGE)GetWindowWord(hwnd, ZYZG_WW_PZYZGAUGE);
1000 //    pgauge = (PZYZGAUGE)GetWindowLong(hwnd, ZYZG_WW_PZYZGAUGE);
1001
1002     /* break to get DefWindowProc() */
1003 //    switch (uMsg)
1004 //    {
1005 //        case WM_CREATE:
1006             /* need to allocate a control block */
1007 //            pgauge = (PZYZGAUGE)LocalAlloc(LPTR, sizeof(ZYZGAUGE));
1008 //            pgauge = (PZYZGAUGE)malloc(sizeof(ZYZGAUGE));
1009 //            if (!pgauge)
1010 //                return (0L);
1011
1012             /* hang on to this control block */
1013 //            SetWindowWord(hwnd, ZYZG_WW_PZYZGAUGE, (WORD)pgauge);
1014 //            SetWindowLong(hwnd, ZYZG_WW_PZYZGAUGE, (LONG)pgauge);
1015
1016             /* fill control block with defaults */
1017 //            pgauge->wRange           = ZYZG_DEF_RANGE;
1018 //            pgauge->wPosition        = ZYZG_DEF_POSITION;
1019 //            pgauge->wOrientation     = ZYZG_DEF_ORIENTATION;
1020 //            pgauge->wWidth3D         = ZYZG_DEF_WIDTH3D;
1021 //            pgauge->wWidthBezelFace  = ZYZG_DEF_BEZELFACE;
1022 //            pgauge->rgbTextColor     = rgbDefTextColor;
1023 //            pgauge->rgbBkColor       = rgbDefBkColor;
1024
1025             /* use system font */
1026 //            SendMessage(hwnd, WM_SETFONT, (WPARAM)NULL, 0L);
1027
1028             /* go to DefWindowProc() to finish the job */
1029 //            break;
1030
1031 //        case WM_DESTROY:
1032             /* get rid of the control's memory */
1033 //            if (pgauge)
1034 //                LocalFree((HANDLE)pgauge);
1035 //                free(pgauge);
1036 //            break;
1037
1038 //        case ZYZG_GETPOSITION:
1039 //            return (pgauge->wPosition);
1040
1041 //        case ZYZG_GETRANGE:
1042 //            return (pgauge->wRange);
1043
1044 //        case ZYZG_GETORIENTATION:
1045 //            return (pgauge->wOrientation);
1046
1047 //        case ZYZG_GETWIDTH3D:
1048 //            return (pgauge->wWidth3D);
1049
1050 //        case ZYZG_GETBEZELFACE:
1051 //            return (pgauge->wWidthBezelFace);
1052
1053 //        case ZYZG_GETBKCOLOR:
1054 //            return (pgauge->rgbTextColor);
1055
1056 //        case ZYZG_GETFGCOLOR:
1057 //            return (pgauge->rgbBkColor);
1058
1059 //        case ZYZG_SETBKCOLOR:
1060 //            pgauge->rgbBkColor = lParam;
1061 //            return (0L);
1062
1063 //        case ZYZG_SETFGCOLOR:
1064 //            pgauge->rgbTextColor = lParam;
1065 //            return (0L);
1066
1067
1068 //        case ZYZG_SETPOSITION:
1069 //            pgauge->wPosition = wParam;
1070
1071 //zyzgForceRepaint:
1072 //            GetClientRect(hwnd, &rc);
1073 //            if ((GetWindowLong(hwnd, GWL_STYLE) & ZYZGS_3D) && fSupport3D)
1074 //            {
1075 //                wParam = (2 * pgauge->wWidth3D) +
1076 //                            pgauge->wWidthBezelFace + 2;
1077 //            }
1078
1079 //            else
1080 //                wParam = 1;
1081
1082 //        InflateRect(&rc, ~(wParam), ~(wParam));
1083 //            InvalidateRect(hwnd, &rc, FALSE);
1084 //            UpdateWindow(hwnd);
1085 //            return (0L);
1086
1087 //        case ZYZG_SETRANGE:
1088 //            pgauge->wRange = wParam;
1089 //            goto zyzgForceRepaint;
1090
1091 //        case ZYZG_SETORIENTATION:
1092 //            pgauge->wOrientation = wParam;
1093 //            goto zyzgForceRepaint;
1094
1095 //        case ZYZG_SETWIDTH3D:
1096 //            pgauge->wWidth3D = wParam;
1097
1098 //zyzgForceRepaint3D:
1099 //            InvalidateRect(hwnd, NULL, FALSE);
1100 //            UpdateWindow(hwnd);
1101 //            return (0L);
1102
1103 //        case ZYZG_SETBEZELFACE:
1104 //            pgauge->wWidthBezelFace = wParam;
1105 //            goto zyzgForceRepaint3D;
1106
1107 //        case ZYZG_SETDELTAPOS:
1108 ///* Watcom doesn't like the following line so removing typecasts */
1109 ///*            (int)pgauge->wPosition += (int)wParam; */
1110 //            pgauge->wPosition += wParam;
1111 //            goto zyzgForceRepaint;
1112
1113 //        case WM_PAINT:
1114 //            BeginPaint(hwnd, &ps);
1115 //            gaugePaint(hwnd, ps.hdc);
1116 //            EndPaint(hwnd, &ps);
1117 //            return (0L);
1118
1119 //        case WM_GETFONT:
1120 //            hFont = pgauge->hFont;
1121
1122 //            /* if system font, then return NULL handle */
1123 //            return (long)((hFont == GetStockObject(SYSTEM_FONT)) ? NULL : hFont);
1124
1125 //        case WM_SETFONT:
1126             /* if NULL hFont, use system font */
1127 //            hFont = (HFONT)wParam ;
1128 //            if (!hFont)
1129 //                hFont = (HFONT) GetStockObject(SYSTEM_FONT);
1130
1131 //            pgauge->hFont = hFont;
1132
1133             /* redraw if indicated in message */
1134 //            if ((BOOL)lParam)
1135 //            {
1136 //                InvalidateRect(hwnd, NULL, TRUE);
1137 //                UpdateWindow(hwnd);
1138 //            }
1139 //            return (0L);
1140 //    } /* switch () */
1141
1142     /* let the dialog mangler take care of this message */
1143 //    return (DefWindowProc(hwnd, uMsg, wParam, lParam));
1144 //} /* gaugeWndProc() */
1145
1146
1147 /** EOF: zyzgauge.c **/
1148
1149