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uieffect.cpp
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C/C++ Source or Header
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1995-05-03
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6KB
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253 lines
/*
* UIEFFECT.CPP
*
* Utility functions for drawing various graphical effects.
*
* Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
*
* Kraig Brockschmidt, Microsoft
* Internet : kraigb@microsoft.com
* Compuserve: >INTERNET:kraigb@microsoft.com
*/
#include "inoledll.h"
//Hatch pattern brush bits
static WORD g_wHatchBmp[]={0x11, 0x22, 0x44, 0x88, 0x11, 0x22, 0x44, 0x88};
/*
* UIDrawHandles
*
* Purpose:
* Draw handles or/and boundary around Container Object when selected
*
* Parameters:
* pRect Dimensions of Container Object
* hDC HDC of the site
* dwFlags DWORD specifying how to draw the handles.
* cSize UINT size of handle box
* fDraw BOOL draw if TRUE, erase if FALSE
*
* Return Value:
* None
*/
STDAPI_(void) UIDrawHandles(LPRECT pRect, HDC hDC, DWORD dwFlags, UINT cSize
, BOOL fDraw)
{
HBRUSH hBR;
RECT rc;
int bkmodeOld;
BOOL fInvert=(BOOL)(dwFlags & UI_HANDLES_USEINVERSE);
CopyRect((LPRECT)&rc, pRect);
bkmodeOld=SetBkMode(hDC, TRANSPARENT);
if (dwFlags & UI_HANDLES_OUTSIDE)
InflateRect((LPRECT)&rc, cSize - 1, cSize - 1);
//Draw the handles inside the rectangle boundary
DrawHandle(hDC, rc.left, rc.top, cSize, fInvert, fDraw);
DrawHandle(hDC, rc.left, rc.top+(rc.bottom-rc.top-cSize)/2, cSize, fInvert, fDraw);
DrawHandle(hDC, rc.left, rc.bottom-cSize, cSize, fInvert, fDraw);
DrawHandle(hDC, rc.left+(rc.right-rc.left-cSize)/2, rc.top, cSize, fInvert, fDraw);
DrawHandle(hDC, rc.left+(rc.right-rc.left-cSize)/2, rc.bottom-cSize, cSize, fInvert, fDraw);
DrawHandle(hDC, rc.right-cSize, rc.top, cSize, fInvert, fDraw);
DrawHandle(hDC, rc.right-cSize, rc.top+(rc.bottom-rc.top-cSize)/2, cSize, fInvert, fDraw);
DrawHandle(hDC, rc.right-cSize, rc.bottom-cSize, cSize, fInvert, fDraw);
if (!(dwFlags & UI_HANDLES_NOBORDER))
{
if (fDraw)
hBR=(HBRUSH)GetStockObject(BLACK_BRUSH);
else
hBR=(HBRUSH)GetStockObject(WHITE_BRUSH);
FrameRect(hDC, pRect, hBR);
}
SetBkMode(hDC, bkmodeOld);
}
/*
* DrawHandle
*
* Purpose:
* Draw a handle box at the specified coordinate
*
* Parameters:
* hDC HDC to be drawn into
* x, y int upper left corner coordinate of the handle box
* cSize UINT size of handle box
* fInvert BOOL indicating to invert the rect or fill it
* fDraw BOOL draw if TRUE, erase if FALSE,
* ignored if fInvert is TRUE
*
* Return Value:
* None
*/
void DrawHandle(HDC hDC, int x, int y, UINT cSize, BOOL fInvert
, BOOL fDraw)
{
HBRUSH hBR;
HBRUSH hBROld;
HPEN hPen;
HPEN hPenOld;
RECT rc;
if (!fInvert)
{
if (fDraw)
{
hPen=(HPEN)GetStockObject(BLACK_PEN);
hBR=(HBRUSH)GetStockObject(BLACK_BRUSH);
}
else
{
hPen=(HPEN)GetStockObject(WHITE_PEN);
hBR=(HBRUSH)GetStockObject(WHITE_PEN);
}
hPenOld=(HPEN)SelectObject(hDC, hPen);
hBROld=(HBRUSH)SelectObject(hDC, hBR);
Rectangle(hDC, x, y, x+cSize, y+cSize);
SelectObject(hDC, hPenOld);
SelectObject(hDC, hBROld);
}
else
{
rc.left=x;
rc.top=y;
rc.right=x + cSize;
rc.bottom=y + cSize;
InvertRect(hDC, (LPRECT)&rc);
}
return;
}
/*
* UIDrawShading
*
* Purpose:
* Draw a hatching across a rectangle, inside a rectangle, or
* outside a rectangle.
*
* Parameters:
* prc LPRECT containing the rectangle.
* hDC HDC on which to draw.
* dwFlags DWORD specifying how to draw the shading.
* cWidth UINT width of the border to draw. Ignored
* if dwFlags has UI_SHADE_FULLRECT.
*
* Return Value:
* None
*/
STDAPI_(void) UIDrawShading(LPRECT prc, HDC hDC, DWORD dwFlags, UINT cWidth)
{
HBRUSH hBR;
HBRUSH hBROld;
HBITMAP hBM;
RECT rc;
UINT cx, cy;
COLORREF crText;
COLORREF crBk;
const DWORD dwROP=0x00A000C9L; //DPa
if (NULL==prc || NULL==hDC)
return;
hBM=CreateBitmap(8, 8, 1, 1, g_wHatchBmp);
hBR=CreatePatternBrush(hBM);
hBROld=(HBRUSH)SelectObject(hDC, hBR);
rc=*prc;
cx=rc.right-rc.left;
cy=rc.bottom-rc.top;
if (UI_SHADE_FULLRECT==dwFlags)
{
crText=SetTextColor(hDC, RGB(255, 255, 255));
crBk=SetBkColor(hDC, RGB(0, 0, 0));
PatBlt(hDC, rc.left, rc.top, cx, cy, dwROP);
}
else
{
if (UI_SHADE_BORDEROUT==dwFlags)
InflateRect((LPRECT)&rc, cWidth-1, cWidth-1);
crText=SetTextColor(hDC, RGB(255, 255, 255));
crBk=SetBkColor(hDC, RGB(0, 0, 0));
PatBlt(hDC, rc.left, rc.top, cx, cWidth, dwROP);
PatBlt(hDC, rc.left, rc.top, cWidth, cy, dwROP);
PatBlt(hDC, rc.right-cWidth, rc.top, cWidth, cy, dwROP);
PatBlt(hDC, rc.left, rc.bottom-cWidth, cx, cWidth, dwROP);
}
SetTextColor(hDC, crText);
SetBkColor(hDC, crBk);
SelectObject(hDC, hBROld);
DeleteObject(hBR);
DeleteObject(hBM);
return;
}
/*
* UIShowObject
*
* Purpose:
* Draw the ShowObject effect around an embedded or linked
* object.
*
* Parameters:
* prc LPRECT to draw around.
* hDC HDC on which to draw.
* fLink BOOL specifying a linked (TRUE) or
* embedded (FALSE) object
*
* Return Value:
* None
*/
STDAPI_(void) UIShowObject(LPCRECT prc, HDC hDC, BOOL fLink)
{
HPEN hPen;
HPEN hPenOld;
HBRUSH hBROld;
if (NULL==prc || NULL==hDC)
return;
hPen=fLink ? CreatePen(PS_DASH, 1, RGB(0,0,0))
: (HPEN)GetStockObject(BLACK_PEN);
if (!hPen)
return;
hPenOld=(HPEN)SelectObject(hDC, hPen);
hBROld=(HBRUSH)SelectObject(hDC, GetStockObject(NULL_BRUSH));
Rectangle(hDC, prc->left, prc->top, prc->right, prc->bottom);
SelectObject(hDC, hPenOld);
SelectObject(hDC, hBROld);
if (fLink)
DeleteObject(hPen);
return;
}