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cdd0923710
Tue Jan 4 13:01:33 1994 David Metcalfe <david@prism.demon.co.uk>
* [window/caret.c]
Modified code to use system timer.
Jan 9, 94 martin2@trgcorp.solucorp.qc.ca (Martin Ayotte)
* [windows/win.c]
Windows create if required new XLIB MenuBar & CaptionBar.
* [windows/defwnd.c]
WM_CALCSIZE Move & Resize caption, menubar & scrollbars.
(I'm not sure it's the good place for it, but it work...)
* [loader/resource.c]
optimize in FindResourceByNumber, make lseek() if next type ...
* [controls/scroll.c]
scrollbar buttons are now using system resources bitmaps.
* [controls/caption.c] - new file ...
captionbar showing title, close button with SysMenu,
and other buttons using system resources bitmaps.
* [controls/menu.c]
New functions: SetMenuItemBitmaps() with 'glues',
Make new version of LoadMenu() & ParseMenu(),
( put #define USE_POPUPMENU ).
Implementation of MenuBar functions.
* [sysres.dll]
New bitmaps for system such OBM_CLOSE, OBM_MINIMIZE, OBM_UPARROWI.
New SYSMENU menu, it don't work yet ! :-((
Tue Jan 11 05:27:45 1994 julliard@di.epfl.ch (Alexandre Julliard
* [memory/atom.c]
Fixed a bug that could cause atoms to be case-sensitive.
* [misc/rect.c]
Bug fix in SubtractRect().
* [objects/clipping.c]
Bug fix when setting the clip mask to an empty region.
* [windows/dce.c]
Bug fix in ReleaseDC().
* [windows/dialog.c]
Call AdjustWindowRectEx() before creating the dialog window.
Added support for DS_MODALFRAME style.
* [windows/event.c]
Cleaned up event handling and removed old Xt stuff.
Moved double-click handling to windows/message.c
* [windows/focus.c]
Bug fix: only set the X focus when the window is viewable.
* [windows/graphics.c]
Rewritten DrawReliefRect() to use brush instead of pen, and
to use the system colors.
* [windows/message.c]
Implemented WM_NCHITTEST message sending, and non-client
mouse messages.
Cleaned up double-click handling, and removed the Xt code.
* [windows/nonclient.c] (New file)
Implemented AdjustWindowRect().
Implemented WM_NCCALCSIZE, WM_NCHITTEST and WM_NCPAINT handling.
* [windows/painting.c]
Added sending of the WM_NCPAINT message in BeginPaint().
* [windows/sysmetrics.c] [include/sysmetrics.h] (New files)
Implemented system metrics.
* [windows/win.c]
Bug fix in setting the parent and owner in CreateWindow().
Removed the Xt code.
* [windows/winpos.c]
Added sending of the WM_NCPAINT message in SetWindowPos().
Removed the Xt code.
47 lines
944 B
C
47 lines
944 B
C
/*
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* LineDDA
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*
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* Copyright 1993 Bob Amstadt
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*/
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static char Copyright[] = "Copyright Bob Amstadt, 1993";
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#include <stdlib.h>
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#include "windows.h"
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/**********************************************************************
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* LineDDA (GDI.100)
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*/
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void LineDDA(short nXStart, short nYStart, short nXEnd, short nYEnd,
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FARPROC callback, long lParam)
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{
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int x, y;
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int b;
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int x_diff = nXEnd - nXStart;
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int y_diff = nYEnd - nYStart;
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if (x_diff == 0 && y_diff == 0)
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return;
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if ((abs(x_diff) < abs(y_diff) && x_diff != 0) || y_diff == 0)
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{
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b = (nXStart * y_diff) / x_diff - nYStart;
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for (x = nXStart; x <= nXEnd; x++)
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{
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y = (x * y_diff) / x_diff + b;
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CallLineDDAProc(callback, x, y, lParam);
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}
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}
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else
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{
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b = (nYStart * x_diff) / y_diff - nXStart;
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for (y = nYStart; y <= nYEnd; y++)
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{
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x = (y * x_diff) / y_diff + b;
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CallLineDDAProc(callback, x, y, lParam);
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}
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}
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}
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