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/*
* OBJFDBK.C * * Miscellaneous API's to generate UI feedback effects for OLE objects. This * is part of the OLE 2.0 User Interface Support Library. * The following feedback effects are supported: * 1. Object selection handles (OleUIDrawHandles) * 2. Open Object window shading (OleUIDrawShading) * * Copyright (c)1992 Microsoft Corporation, All Right Reserved */
#define STRICT 1
#include "ole2ui.h"
static void DrawHandle(HDC hdc, int x, int y, UINT cSize, BOOL bInvert, BOOL fDraw);
/*
* OleUIDrawHandles * * Purpose: * Draw handles or/and boundary around Container Object when selected * * Parameters: * lpRect Dimensions of Container Object * hdc HDC of Container Object (MM_TEXT mapping mode) * dwFlags- * Exclusive flags * OLEUI_HANDLES_INSIDE Draw handles on inside of rect * OLEUI_HANDLES_OUTSIDE Draw handles on outside of rect * Optional flags * OLEUI_HANDLES_NOBORDER Draw handles only, no rect * OLEUI_HANDLES_USEINVERSE * use invert for handles and rect, o.t. use COLOR_WINDOWTEXT * cSize size of handle box * fDraw Draw if TRUE, erase if FALSE * * Return Value: null * */STDAPI_(void) OleUIDrawHandles( LPRECT lpRect, HDC hdc, DWORD dwFlags, UINT cSize, BOOL fDraw){ HBRUSH hbr; RECT rc; int bkmodeOld; BOOL bInvert = (BOOL) (dwFlags & OLEUI_HANDLES_USEINVERSE); CopyRect((LPRECT)&rc, lpRect); bkmodeOld = SetBkMode(hdc, TRANSPARENT); if (dwFlags & OLEUI_HANDLES_OUTSIDE) InflateRect((LPRECT)&rc, cSize - 1, cSize - 1);
// Draw the handles inside the rectangle boundary
DrawHandle(hdc, rc.left, rc.top, cSize, bInvert, fDraw); DrawHandle(hdc, rc.left, rc.top+(rc.bottom-rc.top-cSize)/2, cSize, bInvert, fDraw); DrawHandle(hdc, rc.left, rc.bottom-cSize, cSize, bInvert, fDraw); DrawHandle(hdc, rc.left+(rc.right-rc.left-cSize)/2, rc.top, cSize, bInvert, fDraw); DrawHandle(hdc, rc.left+(rc.right-rc.left-cSize)/2, rc.bottom-cSize, cSize, bInvert, fDraw); DrawHandle(hdc, rc.right-cSize, rc.top, cSize, bInvert, fDraw); DrawHandle(hdc, rc.right-cSize, rc.top+(rc.bottom-rc.top-cSize)/2, cSize, bInvert, fDraw); DrawHandle(hdc, rc.right-cSize, rc.bottom-cSize, cSize, bInvert, fDraw);
if (!(dwFlags & OLEUI_HANDLES_NOBORDER)) { if (fDraw) hbr = GetStockObject(BLACK_BRUSH); else hbr = GetStockObject(WHITE_BRUSH);
FrameRect(hdc, lpRect, hbr); }
SetBkMode(hdc, bkmodeOld);}
/*
* DrawHandle * * Purpose: * Draw a handle box at the specified coordinate * * Parameters: * hdc HDC to be drawn into * x, y upper left corner coordinate of the handle box * cSize size of handle box * bInvert use InvertRect() if TRUE, otherwise use Rectangle() * fDraw Draw if TRUE, erase if FALSE, ignored if bInvert is TRUE * * Return Value: null * */static void DrawHandle(HDC hdc, int x, int y, UINT cSize, BOOL bInvert, BOOL fDraw){ HBRUSH hbr; HBRUSH hbrOld; HPEN hpen; HPEN hpenOld; RECT rc;
if (!bInvert) { if (fDraw) { hpen = GetStockObject(BLACK_PEN); hbr = GetStockObject(BLACK_BRUSH); } else { hpen = GetStockObject(WHITE_PEN); hbr = GetStockObject(WHITE_PEN); }
hpenOld = SelectObject(hdc, hpen); hbrOld = 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); }}
/*
* OleUIDrawShading * * Purpose: * Shade the object when it is in in-place editing. Borders are drawn * on the Object rectangle. The right and bottom edge of the rectangle * are excluded in the drawing. * * Parameters: * lpRect Dimensions of Container Object * hdc HDC for drawing * dwFlags- * Exclusive flags * OLEUI_SHADE_FULLRECT Shade the whole rectangle * OLEUI_SHADE_BORDERIN Shade cWidth pixels inside rect * OLEUI_SHADE_BORDEROUT Shade cWidth pixels outside rect * Optional flags * OLEUI_SHADE_USEINVERSE * use PATINVERT instead of the hex value * cWidth width of border in pixel * * Return Value: null * */STDAPI_(void) OleUIDrawShading(LPRECT lpRect, HDC hdc, DWORD dwFlags, UINT cWidth){ HBRUSH hbr; HBRUSH hbrOld; HBITMAP hbm; RECT rc; WORD wHatchBmp[] = {0x11, 0x22, 0x44, 0x88, 0x11, 0x22, 0x44, 0x88}; COLORREF cvText; COLORREF cvBk; hbm = CreateBitmap(8, 8, 1, 1, wHatchBmp); hbr = CreatePatternBrush(hbm); hbrOld = SelectObject(hdc, hbr); rc = *lpRect; if (dwFlags == OLEUI_SHADE_FULLRECT) { cvText = SetTextColor(hdc, RGB(255, 255, 255)); cvBk = SetBkColor(hdc, RGB(0, 0, 0)); PatBlt(hdc, rc.left, rc.top, rc.right-rc.left, rc.bottom-rc.top, 0x00A000C9L /* DPa */ ); } else { // either inside or outside rect
if (dwFlags == OLEUI_SHADE_BORDEROUT) InflateRect((LPRECT)&rc, cWidth - 1, cWidth - 1); cvText = SetTextColor(hdc, RGB(255, 255, 255)); cvBk = SetBkColor(hdc, RGB(0, 0, 0)); PatBlt(hdc, rc.left, rc.top, rc.right - rc.left, cWidth, 0x00A000C9L /* DPa */); PatBlt(hdc, rc.left, rc.top, cWidth, rc.bottom - rc.top, 0x00A000C9L /* DPa */); PatBlt(hdc, rc.right - cWidth, rc.top, cWidth, rc.bottom - rc.top, 0x00A000C9L /* DPa */); PatBlt(hdc, rc.left, rc.bottom - cWidth, rc.right-rc.left, cWidth, 0x00A000C9L /* DPa */); } SetTextColor(hdc, cvText); SetBkColor(hdc, cvBk); SelectObject(hdc, hbrOld); DeleteObject(hbr); DeleteObject(hbm);}
/*
* OleUIShowObject * * Purpose: * Draw the ShowObject effect around the object * * Parameters: * lprc rectangle for drawing * hdc HDC for drawing * fIsLink linked object (TRUE) or embedding object (FALSE) * * Return Value: null * */STDAPI_(void) OleUIShowObject(LPCRECT lprc, HDC hdc, BOOL fIsLink){ HPEN hpen; HPEN hpenOld; HBRUSH hbrOld; if (!lprc || !hdc) return;
hpen = fIsLink ? CreatePen(PS_DASH, 1, RGB(0,0,0)) : GetStockObject(BLACK_PEN);
if (!hpen) return;
hpenOld = SelectObject(hdc, hpen); hbrOld = SelectObject(hdc, GetStockObject(NULL_BRUSH)); Rectangle(hdc, lprc->left, lprc->top, lprc->right, lprc->bottom); SelectObject(hdc, hpenOld); SelectObject(hdc, hbrOld); if (fIsLink) DeleteObject(hpen);
}
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