另外一种实现平面工具栏的方.htm
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<html><head><meta http-equiv="content-type" content="text/html; charset=gb2312"><title>另外一种...</title><meta name="GENERATOR" content="Microsoft FrontPage 3.0"><meta name="microsoft border" content="none"><meta name="microsoft theme" content="none"></head><body background="di2001.jpg"><font size="5"><h1 align="center" style="margin-left: 5; padding-left: 5"><font color="#000099">另外一种实现平面工具栏的方法(不需要msie)</font></h1><p align="center" style="margin-left: 5; padding-left: 5"></font><font size="3">原著：<ahref="mailto:joerg.koenig@rhein-neckar.de">joerg koenig</a> 编译：张圣华</font></p><font size="3"><hr align="center" width="90%" size="1" color="#008080"></font><blockquote> <p style="margin-left: 5; padding-left: 5"> 在前面的文章“<a href="vc0016.htm"><font size="3" color="#ff8000">如何编写类似于word97的工具栏</font></a>”中，已经看到了一种实现平面工具栏的方法。事实上，它需要你的机器上要装有 msie (或comctl32.dll)，这似乎有些不便。所以我自己开发出了我自己版本的平面工具栏，而不需要上面的要求。我把它称为类ctoolbarex。</p> <p style="margin-left: 5; padding-left: 5"> 使用 ctoolbarex，你可以在平面和传统方式间进行切换。更新是非常快的。</p> <p style="margin-left: 5; padding-left: 5"> 其中有些代码你可能觉得很眼熟。其实分隔线和 gripper 的绘制代码或多或少是从roger的代码中继承来的。我为什么要做那些重复的工作。;-) </p> <p style="margin-left: 5; padding-left: 5"> 在平面模式下，由 ctoolbarex 来负责所有的绘制工作; 在传统的模式下，由 mfc 来完成工作。</p> <p style="margin-left: 5; padding-left: 5"> 由于 vc++ 4.2 及以后的版本提供了用户自绘能力，我们可以通过一局部辅助类在平面模式中来模仿该特性，所以我们可以在忽略当前模式(平面或传统)的情况下使用该特性。如果你想进一步了解用户自绘制的实现，可参见toolbarex.cpp文件。</p> <p style="margin-left: 5; padding-left: 5"> ctoolbarex 包含有两个文件： </p> <p style="margin-left: 5; padding-left: 5"><font color="#ff0000"><strong>toolbarex.h </strong></font><dl> <dd><pre>/////////////////////////////////////////////////////////////////////////////// copyright (c) 1997 by joerg koenig// all rights reserved//// distribute freely, except: don't remove my name from the source or// documentation (don't take credit for my work), mark your changes (don't// get me blamed for your possible bugs), don't alter or remove this// notice.// no warrantee of any kind, express or implied, is included with this// software; use at your own risk, responsibility for damages (if any) to// anyone resulting from the use of this software rests entirely with the// user.//// send bug reports, bug fixes, enhancements, requests, flames, etc., and// i'll try to keep a version up to date. i can be reached as follows:// j.koenig@adg.de (company site)// joerg.koenig@rhein-neckar.de (private site)/////////////////////////////////////////////////////////////////////////////</pre> </dd> <dd><pre>#if !defined(afx_toolbarex_h__1e0f37f5_4020_11d1_9fb1_444553540000__included_)#define afx_toolbarex_h__1e0f37f5_4020_11d1_9fb1_444553540000__included_</pre> </dd> <dd><pre>#if _msc_ver >= 1000#pragma once#endif // _msc_ver >= 1000// toolbarex.h : header file//</pre> </dd> <dd><pre>/////////////////////////////////////////////////////////////////////////////// ctoolbarex window</pre> </dd> <dd><pre>class ctoolbarex : public ctoolbar{ declare_dynamic(ctoolbarex)</pre> </dd> <dd><pre>// data membersprivate: bool m_bflatlook; csize m_sizeoffset; // real starting point of the image colorref m_clrbtnface; colorref m_clrbtnhilight; colorref m_clrbtnshadow; int m_nlastbtn; // index of last formed button uint m_utimerevent; cuintarray m_styles; hwnd m_hwndparent; // "real" parent (even in floating mode) bool m_bdeleteimglist; // remember the way we've built the image list cfont m_guifont;</pre> </dd> <dd><pre>// constructionpublic: ctoolbarex();</pre> </dd> <dd><pre>// attributespublic: void setflatlook( bool bflat = true ){ if( bflat != m_bflatlook ) { m_bflatlook = bflat; if( ::iswindow(getsafehwnd()) ) { // force a repaint of all buttons invalidate(); // erase/draw the gripper onncpaint(); } } }</pre> </dd> <dd><pre> bool isflatlook() const { return m_bflatlook; }</pre> </dd> <dd><pre> // this function i've missed in ctoolbar for more than one time ... void getsizes( csize & szbtn, csize & szimg ) const { szbtn = m_sizebutton; szimg = m_sizeimage; }</pre> </dd> <dd><pre> // get the window to which the toolbar initially was docked. this // is not necessarily the window returned by cwnd::getparent() or // ccontrolbar::getdockingframe(). both these functions don't // return the expected window, if the toolbar is floating ... cwnd * getparentframe() const { return ::iswindow(m_hwndparent) ? cwnd::fromhandle(m_hwndparent) : 0; }</pre> </dd> <dd><pre>// operationspublic:// overrides // classwizard generated virtual function overrides //{{afx_virtual(ctoolbarex) //}}afx_virtual</pre> </dd> <dd><pre>protected: virtual void onupdatecmdui( cframewnd* ptarget, bool bdisableifnohndler );</pre> </dd> <dd><pre>// implementationpublic: virtual ~ctoolbarex();</pre> </dd> <dd><pre> // generated message map functionsprotected: //{{afx_msg(ctoolbarex) afx_msg void onpaint(); afx_msg void onsyscolorchange(); afx_msg void onnccalcsize(bool bcalcvalidrects, nccalcsize_params far* lpncsp); afx_msg void onmousemove(uint nflags, cpoint point); afx_msg void onncpaint(); afx_msg void ontimer(uint nidevent); afx_msg int oncreate(lpcreatestruct lpcreatestruct); //}}afx_msg</pre> </dd> <dd><pre> afx_msg lresult onsetbuttonsize(wparam, lparam); afx_msg lresult onsetbitmapsize(wparam, lparam);</pre> </dd> <dd><pre> declare_message_map()</pre> </dd> <dd><pre>private: // recalculate the starting point of the button's image. void calculateoffset() { if( m_pstringmap != 0 && !m_pstringmap->isempty() ) { // there are strings assigned to at least one button // center the image horizontal m_sizeoffset.cx = (m_sizebutton.cx-m_sizeimage.cx)/2; // the following value calculates as follows: // the button must be big enough to hold the image: // + 7 pixels on x // + 6 pixels on y // so the y-offset is "min" (6) / 2 == 3 m_sizeoffset.cy = 3; } else { // no button has text assigned: center the image on the button m_sizeoffset.cx = (m_sizebutton.cx-m_sizeimage.cx)/2; m_sizeoffset.cy = (m_sizebutton.cy-m_sizeimage.cy)/2; } }</pre> </dd> <dd><pre> // some special drawing functions: void drawdisabledbutton( cdc &, const crect & ) const; void drawseparator( cdc &, crect & ) const; void drawgripper( cdc & ) const;</pre> </dd> <dd><pre> himagelist getimagelist();};</pre> </dd> <dd><pre>/////////////////////////////////////////////////////////////////////////////</pre> </dd> <dd><pre>//{{afx_insert_location}}// microsoft developer studio will insert additional declarations immediately before the previous line.</pre> </dd> <dd><pre>#endif // !defined(afx_toolbarex_h__1e0f37f5_4020_11d1_9fb1_444553540000__included_)</pre> </dd> </dl> <p style="margin-left: 5; padding-left: 5"><strong><font color="#ff0000">toolbarex.cpp </font></strong><dl> <dd><pre>/////////////////////////////////////////////////////////////////////////////// copyright (c) 1997 by joerg koenig// all rights reserved//// distribute freely, except: don't remove my name from the source or// documentation (don't take credit for my work), mark your changes (don't// get me blamed for your possible bugs), don't alter or remove this// notice.// no warrantee of any kind, express or implied, is included with this// software; use at your own risk, responsibility for damages (if any) to// anyone resulting from the use of this software rests entirely with the// user.//// send bug reports, bug fixes, enhancements, requests, flames, etc., and// i'll try to keep a version up to date. i can be reached as follows:// j.koenig@adg.de (company site)// joerg.koenig@rhein-neckar.de (private site)/////////////////////////////////////////////////////////////////////////////</pre> </dd> <dd><pre>// toolbarex.cpp : implementation file//// description:// ctoolbarex provides additional features to the standard toolbar// "ctoolbar". the main addition is the flat mode (last seen in// developer studio 5.0).// there are no special requirements for having the flat mode in your// application (no special comctl32.dll or what ever)!// if you need custom draw abilities, then you have to use vc++ >= 4.2// however, the flat mode should work with older versions of vc++ too (let// me know of your experiences!)//// usage:// the only task you have to perform, is to// #include "toolbarex.h"// in either stdafx.h or mainfrm.h and to change the type of// cmainframe::m_wndtoolbar from ctoolbar to ctoolbarex.// don't forget to recompile :-)//// acknowledgements:// o the main idea of how to draw a separator and the gripper is stolen// from roger onslow's msie flat toolbar.// thanks for saving my time, roger ;-)// o the embossed drawing of a disabled image came from// victor m. vogelpoel (victorv@telic.nl)// o some hints for buttons with text came from// david bates (bates@econ.ubc.ca)// (i'm still thinking, text on toolbar-buttons is broken.// that has to be tooltip's work. however, texts on buttons// now work)////// (known) bugs and limitations:// o the cdrf_newfont notification is still untested ...// o assigning texts to buttons may cause the buttons to// resize horizontally without notified by ctoolbar. this// leads to a wrong calculation inside calcdynamiclayout()// and calcfixedlayout(). one could override both these// functions in derived classes to avoid that problem,// but that would be a greater pain ...//// if you find others (and have a solution for them ?!), please let me know:// joerg.koenig@rhein-neckar.de (private site) or// j.koenig@adg.de (company site)//// changes:// 11/07/97// (2 minor bugs have been occured as a result of the last update :)// o the wrap state of a separator will be ignored now, if// the bar is docked vertically// o draw an image transparently. this is needed only if one// uses 256 color images.//// 10/30/97// o texts on buttons now work// o gripper improved for a closer look like office97// o disabled images now look embossed// o a separator is drawn only if it has no wrap state set</pre> </dd> <dd><pre>#include "stdafx.h"#include "toolbarex.h"</pre> </dd> <dd><pre>#ifdef _debug#define new debug_new#undef this_filestatic char this_file[] = __file__;#endif</pre> </dd> <dd><pre>/////////////////////////////////////////////////////////////////////////////// local helper class ccustomdrawinfo//// the helper class ccustomdrawinfo handles the messaging to the docking// frame of the toolbar in flat mode only. if flat-mode is disabled, then// mfc's own messanger will be used.//// a few words about custom draw on toolbars:// o custom draw is possible for mfc >= 4.2 only (older versions don't know// anything about certain structures ...)// o mfc does not set the "rc" member of nmcustomdraw to the rectangle of the// button that will be drawn. however, we do, so watch out, wether the// toolbar is flat or not (or ignore the "rc" member in both cases).// if the current mode is not "flat", then mfc's art of message arrives ...// o mfc does not send a message for separators, so we too don't do it.// o it seems that mfc toolbars never send *erase notifications; instead they// send tbn_querydelete for instance.// o the cdrf_newfont notification result is ignored (in flat mode. never// tried with original mfc, because it is broken on toolbars)./////////////////////////////////////////////////////////////////////////////</pre> </dd> <dd><pre>class ccustomdrawinfo {</pre> </dd> <dd><pre>#if _mfc_ver >= 0x0420 nmcustomdraw m_cdrw; // custom draw information holder lresult m_prepaint; // result from prepaint notification lresult m_itemprepaint; // dito for specific item ctoolbarex * m_ptoolbar; // the real sender of the notification cwnd * m_preceiver; // the receiver of the notification</pre> </dd> <dd><pre> lresult notifyparent();#endif // _mfc_ver</pre> </dd> <dd><pre> public: // construction ccustomdrawinfo( cdc & dc, ctoolbarex * ptoolbar );</pre> </dd> <dd><pre> public: // notifyitemprepaint() returns true, // if the user wants to do the default // (cdrf_dodefault) or false, if the // user wants to skip (cdrf_skipdefault) // note that cdrf_skipdefault is not // allowed for cdds_prepaint, cdds_postpaint ! // and cdds_itempostpaint void notifyprepaint(); bool notifyitemprepaint(int item); void notifyitempostpaint(int item); void notifypostpaint();};⌨️ 快捷键说明
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