/** zyz3d.c * * DESCRIPTION: * This module contains functions for creating nifty 3D borders * around controls like zYzGauge. * * HISTORY: * 3/14/91 cjp put in this comment * 6/19/92 cjp touched it a bit * ** cjp */ // COPYRIGHT: // // (C) Copyright Microsoft Corp. 1992. All rights reserved. // // You have a royalty-free right to use, modify, reproduce and // distribute the Sample Files (and/or any modified version) in // any way you find useful, provided that you agree that // Microsoft has no warranty obligations or liability for any // Sample Application Files which are modified. // /* get the includes we need */ #include #include "zyz3d.h" /** void FAR PASCAL Draw3DFaceFrame(HDC hdc, LPRECT rc, WORD wWidth) * * DESCRIPTION: * This function draws a flat frame with the current button-face * color. * * ARGUMENTS: * HDC hdc : The DC to draw into. * * LPRECT rc : The containing rect for the new frame. * * WORD wWidth : The width of the frame to draw. * * RETURN (void FAR PASCAL): * The frame will have been drawn into the DC. * * NOTES: * ** cjp */ void FAR PASCAL Draw3DFaceFrame(HDC hdc, LPRECT rc, WORD wWidth) { RECT rc1; DWORD rgbOld; /* don't go through a bunch of work if we don't have to */ if (!wWidth) return; /* set up color to be button-face color--so it may not be gray */ rgbOld = SetBkColor(hdc, GetSysColor(COLOR_BTNFACE)); /* perform CopyRect w/o bloody windows style overhead */ rc1 = *rc; /* top */ rc1.top = rc->top; rc1.left = rc->left; rc1.bottom = rc->top + wWidth; rc1.right = rc->right; /* blast it out */ ExtTextOut(hdc, rc1.left, rc1.top, ETO_OPAQUE, &rc1, NULL, 0, NULL); /* right */ rc1.left = rc->right - wWidth; rc1.bottom = rc->bottom; /* blast this part now */ ExtTextOut(hdc, rc1.left, rc1.top, ETO_OPAQUE, &rc1, NULL, 0, NULL); /* left */ rc1.left = rc->left; rc1.right = rc->left + wWidth; /* and another part */ ExtTextOut(hdc, rc1.left, rc1.top, ETO_OPAQUE, &rc1, NULL, 0, NULL); /* bottom */ rc1.right = rc->right; rc1.top = rc->bottom - wWidth; /* finish it off */ ExtTextOut(hdc, rc1.left, rc1.top, ETO_OPAQUE, &rc1, NULL, 0, NULL); /* restore the old bk color */ SetBkColor(hdc, rgbOld); } /* Draw3DFaceFrame() */ /** void FAR PASCAL Draw3DRect(HDC, LPRECT, WORD, WORD) * * DESCRIPTION: * Draws a 3D rectangle that is shaded. wFlags can be used to * control how the rectangle looks. * * ARGUMENTS: * HDC hdc : Handle to the device context that will be * used to display the rectangle. * * RECT rect : A rectangle describing the dimensions of * the rectangle in device coordinates. * * WORD wShadowWidth : Width of the shadow in device coordinates. * * WORD wFlags : The following flags may be passed to describe * the style of the rectangle: * * DRAW3D_IN : The shadow is drawn such that * the box appears to be sunk in to the screen. * This is default if 0 is passed. * * DRAW3D_OUT : The shadow is drawn such that * the box appears to be sticking out of the * screen. * * RETURN (void FAR PASCAL): * The 3D looking rectangle will have been drawn into the DC. * * NOTES: * ** cjp */ void FAR PASCAL Draw3DRect(HDC hdc, LPRECT lpRect, WORD wShadowWidth, WORD wFlags) { /* sanity check--don't work if you don't have to! */ if (!wShadowWidth || !RectVisible(hdc, lpRect)) return; /* draw the top line */ Draw3DLine(hdc, lpRect->left, lpRect->top, lpRect->right - lpRect->left, wShadowWidth, DRAW3D_TOPLINE | wFlags); /* right line */ Draw3DLine(hdc, lpRect->right, lpRect->top, lpRect->bottom - lpRect->top, wShadowWidth, DRAW3D_RIGHTLINE | wFlags); /* bottom line */ Draw3DLine(hdc, lpRect->left, lpRect->bottom, lpRect->right - lpRect->left, wShadowWidth, DRAW3D_BOTTOMLINE | wFlags); /* left line */ Draw3DLine(hdc, lpRect->left, lpRect->top, lpRect->bottom - lpRect->top, wShadowWidth, DRAW3D_LEFTLINE | wFlags); } /* Draw3DRect() */ /** void FAR PASCAL Draw3DLine(HDC hdc, WORD x, WORD y, WORD nLen, * * DESCRIPTION: * Draws a 3D line that can be used to make a 3D box. * * ARGUMENTS: * HDC hdc : Handle to the device context that will be * used to display the 3D line. * * WORD x, y : Coordinates of the beginning of the line. * These coordinates are in device units and * represent the _outside_ most point. Horiz- * ontal lines are drawn from left to right and * vertical lines are drawn from top to bottom. * * WORD wShadowWidth : Width of the shadow in device coordinates. * * WORD wFlags : The following flags may be passed to * describe the style of the 3D line: * * DRAW3D_IN : The shadow is drawn such that * the box appears to be sunk in to the screen. * This is default if 0 is passed. * * DRAW3D_OUT : The shadow is drawn such that * the box appears to be sticking out of the * screen. * * DRAW3D_TOPLINE, _BOTTOMLINE, _LEFTLINE, and * _RIGHTLINE : Specifies that a "top", * "Bottom", "Left", or"Right" line is to be * drawn. * * RETURN (void FAR PASCAL): * The line will have been drawn into the DC. * * NOTES: * ** cjp */ void FAR PASCAL Draw3DLine(HDC hdc, WORD x, WORD y, WORD nLen, WORD wShadowWidth, WORD wFlags) { HBRUSH hOldBrush; HPEN hOldPen; BOOL fDark; POINT Point[ 4 ]; /* define a polgon with 4 points */ /* if width is zero, don't do nothin'! */ if (!wShadowWidth) return; /* define shape of polygon--origin is always the same */ Point[0].x = x; Point[0].y = y; /* To do this we'll simply draw a polygon with four sides, using * the appropriate brush. I dare you to ask me why this isn't a * switch/case! */ if (wFlags & DRAW3D_TOPLINE) { /* across to right */ Point[1].x = x + nLen - (wShadowWidth == 1 ? 1 : 0); Point[1].y = y; /* down/left */ Point[2].x = x + nLen - wShadowWidth; Point[2].y = y + wShadowWidth; /* accross to left */ Point[3].x = x + wShadowWidth; Point[3].y = y + wShadowWidth; /* select 'dark' brush if 'in'--'light' for 'out' */ fDark = (wFlags & DRAW3D_IN) ? TRUE : FALSE; } /* possibly the bottom? */ else if (wFlags & DRAW3D_BOTTOMLINE) { /* across to right */ Point[1].x = x + nLen; Point[1].y = y; /* up/left */ Point[2].x = x + nLen - wShadowWidth; Point[2].y = y - wShadowWidth; /* accross to left */ Point[3].x = x + wShadowWidth; Point[3].y = y - wShadowWidth; /* select 'light' brush if 'in' */ fDark = (wFlags & DRAW3D_IN) ? FALSE : TRUE; } /* ok, it's gotta be left? */ else if (wFlags & DRAW3D_LEFTLINE) { /* down */ Point[1].x = x; Point[1].y = y + nLen - (wShadowWidth == 1 ? 1 : 0); /* up/right */ Point[2].x = x + wShadowWidth; Point[2].y = y + nLen - wShadowWidth; /* down */ Point[3].x = x + wShadowWidth; Point[3].y = y + wShadowWidth; /* select 'dark' brush if 'in'--'light' for 'out' */ fDark = (wFlags & DRAW3D_IN) ? TRUE : FALSE; } /* well maybe it's for the right side? */ else if (wFlags & DRAW3D_RIGHTLINE) { /* down */ Point[1].x = x; Point[1].y = y + nLen; /* up/left */ Point[2].x = x - wShadowWidth; Point[2].y = y + nLen - wShadowWidth; /* up */ Point[3].x = x - wShadowWidth; Point[3].y = y + wShadowWidth; /* select 'light' brush if 'in' */ fDark = (wFlags & DRAW3D_IN) ? FALSE : TRUE; } /* bad drugs? */ else return; /* select NULL_PEN for no borders */ hOldPen = SelectObject(hdc, GetStockObject(NULL_PEN)); /* select the appropriate color for the fill */ if (fDark) hOldBrush = SelectObject(hdc, GetStockObject(GRAY_BRUSH)); else hOldBrush = SelectObject(hdc, GetStockObject(WHITE_BRUSH)); /* finally, draw the dern thing */ Polygon(hdc, (LPPOINT)&Point, 4); /* restore what we killed */ SelectObject(hdc, hOldBrush); SelectObject(hdc, hOldPen); } /* Draw3DLine() */ /** EOF: zyz3d.c **/