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