FOX TOOLKIT 学习 - 文本显示

最新推荐文章于 2025-05-12 19:15:37 发布

visualfc

最新推荐文章于 2025-05-12 19:15:37 发布

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文章标签： layout header null file command button

本文链接：https://blog.csdn.net/visualfc/article/details/4296006

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本文档详细介绍了FOX TOOLKIT框架中如何进行文本的显示操作，包括在布局（layout）中添加文本、设置头部（header）文本、处理空值（null）显示、读取文件内容并展示，以及结合命令（command）和按钮（button）来控制文本的动态显示。通过实例代码和步骤解析，帮助开发者掌握FOX TOOLKIT的文本管理功能。

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原创 VisualFC

    FOX-TOOLKIT的网站及简介： www.fox-toolkit.org
    FOX is a C++ based Toolkit for developing Graphical User Interfaces easily and effectively. It offers a wide, and growing, collection of Controls, and provides state of the art facilities such as drag and drop, selection, as well as OpenGL widgets for 3D graphical manipulation. FOX also implements icons, images, and user-convenience features such as status line help, and tooltips. Tooltips may even be used for 3D objects!

    刚开始学习FOX TOOLKIT，做了一个简单的文本显示例子，在Windows平台上我使用了MultiByteToWideChar来实现代码页转换，如果谁能有基于FOX的解决方案，欢迎进行指点和帮助。
    对比WTL，FOX在界面设计和消息传递上要更加简洁和灵活，缺点是不支持本地UI。在本程序中FXText控件的执行效率较低，可以考虑使用fxscintilla来代替。

程序下载地址： http://www.cppblog.com/Files/visualfc/FoxTest.zip
程序运行界面如下：

程序代码如下：

  1 // FoxTest.cpp : 定义控制台应用程序的入口点。
  2 //
  3 #include " stdafx.h "
  4 #include < fx.h >
  5 #include < windows.h >
  6
  7 class TextWindow : public FXMainWindow
  8 {
  9     FXDECLARE(TextWindow)
10 public :
11     TextWindow(){}
12      ~ TextWindow(){}
13 public :
14      enum {
15         ID_QUIT = FXMainWindow::ID_LAST,
16         ID_TEXT,
17         ID_DIRECTORYLIST,
18         ID_UPDATE_FILE,
19     };
20 public :
21     FXDirList     * dirlist;
22     FXText         * editor;
23     FXString     filename;
24 public :
25     TextWindow(FXApp * app);
26      virtual void create();
27     FXbool loadFile( const FXString & file);
28      void DumpWidgets();
29 public :
30      long onCmdQuit(FXObject * ,FXSelector, void * );
31      long onCmdOpenFile(FXObject * ,FXSelector, void * );
32      long onUpdateFile(FXObject * ,FXSelector, void * );
33 };
34
35 FXDEFMAP(TextWindow) TextWindowMap[] = {
36     FXMAPFUNC(SEL_COMMAND,  TextWindow::ID_DIRECTORYLIST,       TextWindow::onCmdOpenFile),
37     FXMAPFUNC(SEL_COMMAND,    TextWindow::ID_QUIT,                TextWindow::onCmdQuit),
38     FXMAPFUNC(SEL_UPDATE,   TextWindow::ID_UPDATE_FILE,            TextWindow::onUpdateFile),
39 };
40
41 FXIMPLEMENT(TextWindow,FXMainWindow,TextWindowMap,ARRAYNUMBER(TextWindowMap))
42
43 TextWindow::TextWindow(FX::FXApp * app): FXMainWindow(app,L " FOX TOOLKIT学习 - 显示文本      make:  VisualFC  2009.6.24 " ,NULL,NULL,DECOR_ALL, 0 , 0 , 800 , 600 )
44 {
45      new FXToolTip(app);
46
47      new FXStatusBar( this ,LAYOUT_SIDE_BOTTOM | LAYOUT_FILL_X);
48
49     FXHorizontalFrame * main = new FXHorizontalFrame( this ,LAYOUT_SIDE_TOP | LAYOUT_FILL_X | LAYOUT_FILL_Y | FRAME_RAISED);
50
51     FXSplitter * splitter = new FXSplitter(main,LAYOUT_SIDE_TOP | FRAME_RAISED | LAYOUT_FILL_X | LAYOUT_FILL_Y | SPLITTER_TRACKING);
52
53     FXVerticalFrame * group1 = new FXVerticalFrame(splitter,LAYOUT_FIX_WIDTH | LAYOUT_FILL_Y | FRAME_THICK | FRAME_SUNKEN, 0 , 0 , 180 , 0 , 0 , 0 , 0 , 0 , 0 , 0 );
54     FXVerticalFrame * group2 = new FXVerticalFrame(splitter,LAYOUT_FILL_X | LAYOUT_FILL_Y | FRAME_THICK | FRAME_SUNKEN, 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 );
55
56     FXHorizontalFrame * header1 = new FXHorizontalFrame(group1,LAYOUT_FILL_X | FRAME_RAISED | FRAME_THICK, 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 );
57      new FXLabel(header1,L " 目录 " ,NULL,LAYOUT_FILL_X | JUSTIFY_LEFT);
58      new FXButton(header1,L " ×/t隐藏目录/t隐藏目录选择窗口 " ,NULL,group1,FXWindow::ID_HIDE,BUTTON_TOOLBAR | FRAME_RAISED, 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 );
59
60     dirlist = new FXDirList(group1, this ,ID_DIRECTORYLIST,DIRLIST_SHOWFILES | LAYOUT_FILL_X | LAYOUT_FILL_Y | LAYOUT_TOP | LAYOUT_RIGHT | TREELIST_SHOWS_LINES | TREELIST_SHOWS_BOXES | TREELIST_BROWSESELECT | DIRLIST_NO_OWN_ASSOC);
61
62     FXHorizontalFrame * header2 = new FXHorizontalFrame(group2,LAYOUT_FILL_X | FRAME_RAISED | FRAME_THICK, 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 );
63     FXLabel * fileslabel = new FXLabel(header2,L " 显示文件 : " ,NULL,LAYOUT_FILL_X | JUSTIFY_LEFT);
64     fileslabel -> setTarget( this );
65     fileslabel -> setSelector(ID_UPDATE_FILE);
66
67      new FXButton(header2,L " >>/t显示目录/t显示目录选择窗口 " ,NULL,group1,FXWindow::ID_SHOW,BUTTON_TOOLBAR | FRAME_RAISED, 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 );
68     editor = new FXText(group2, this ,ID_TEXT,LAYOUT_FILL_X | LAYOUT_FILL_Y); // |FRAME_RAISED|FRAME_THICK  |TEXT_WORDWRAP);
69     editor -> setHiliteMatchTime( 2000000000 );
70     // editor->setBarColumns(6);
71     DumpWidgets();
72 }
73
74 void TextWindow::create()
75 {
76     FXMainWindow::create();
77     show(PLACEMENT_SCREEN);
78 }
79
80 long TextWindow::onCmdQuit(FXObject * ,FXSelector, void * )
81 {
82     getApp() -> exit();
83      return 1 ;
84 }
85
86 long TextWindow::onCmdOpenFile(FXObject * ,FXSelector, void * ptr)
87 {
88     FXTreeItem * item = (FXTreeItem * )ptr;
89     FXString file;
90      if ( ! item || ! dirlist -> isItemFile(item)) return 1 ;
91
92     file = dirlist -> getItemPathname(item);
93     editor -> setText( "" );
94      if (loadFile(file)){
95         filename = file;
96     }
97
98      return 1 ;
99 }
100
101 void TextWindow::DumpWidgets()
102 {
103     register FXWindow * w = getApp() -> getRootWindow();
104     register FXObject * t;
105     register FXint lev = 0 ;
106     register FXchar s;
107     FXString str = " FOX TOOLKIT Dump Widgets:/n " ;
108     FXString tmp;
109      while (w){
110         t = w -> getTarget();
111         s = w -> shown() ? ' + ' : ' - ' ;
112          if (t){
113             tmp.format( " %*c%s (%p): wk=%d id=%lu target=%s (%p) sel=%d x=%d y=%d w=%d h=%d/n " ,lev * 2 ,s,w -> getClassName(),w,w -> getKey(),w -> id(),t -> getClassName(),t,w -> getSelector(),w -> getX(),w -> getY(),w -> getWidth(),w -> getHeight());
114             str.append(tmp);
115         }
116          else {
117             tmp.format( " %*c%s (%p): wk=%d id=%lu x=%d y=%d w=%d h=%d/n " ,lev * 2 ,s,w -> getClassName(),w,w -> getKey(),w -> id(),w -> getX(),w -> getY(),w -> getWidth(),w -> getHeight());
118             str.append(tmp);
119         }
120          if (w -> getFirst()){
121             w = w -> getFirst();
122             lev ++ ;
123              continue ;
124         }
125          while ( ! w -> getNext() && w -> getParent()){
126             w = w -> getParent();
127             lev -- ;
128              if (lev == 1 ) str.append( " /n " );
129         }
130         w = w -> getNext();
131     }
132     editor -> setText(str);
133 }
134
135 long TextWindow::onUpdateFile(FXObject * sender,FXSelector, void * )
136 {
137     FXString string = L " 显示文件 : " + filename;
138     sender -> handle( this ,FXSEL(SEL_COMMAND,FXWindow::ID_SETSTRINGVALUE),( void * ) & string );
139      return 1 ;
140 }
141
142
143 FXbool TextWindow::loadFile( const FXString & file){
144
145     FXFile textfile(file,FXFile::Reading);
146
147      // Opened file?
148      if (textfile.isOpen()){
149         FXchar * text; FXint size,n,i,j,c;
150
151          // Get file size
152         size = textfile.size();
153          // 限制最大读取字节为10MB
154          if (size >= 10240 * 1024 )
155             size = 10240 * 1024 ;
156
157          // Make buffer to load file
158          if (allocElms(text,size)){
159
160              // Set wait cursor
161             getApp() -> beginWaitCursor();
162
163              // Read the file
164             n = textfile.readBlock(text,size);
165              if ( 0 < n){
166 #ifdef WIN32
167                  // 使用了 MultiByteToWideChar 实现代码页转换，只能用于Windows环境
168                  int buf_len = MultiByteToWideChar(CP_ACP, 0 , text, size,NULL, 0 );
169                 wchar_t * data = new wchar_t[buf_len + 1 ];
170                 data[ 0 ] = L ' /0 ' ;
171                 buf_len = MultiByteToWideChar( 0 , 0 , text, size,data, buf_len);
172                 data[buf_len] = _T( ' /0 ' );
173
174                  for (i = j = 0 ; j < buf_len; j ++ ){
175                     c = data[j];
176                      if (c != L ' /r ' ){
177                         data[i ++ ] = c;
178                     }
179                 }
180                 n = i;
181                 data[n] = L ' /0 ' ;
182                 editor -> setText(data);
183                 delete[] data;
184 #else
185                  for (i = j = 0 ; j < n; j ++ ){
186                     c = text[j];
187                      if (c != ' /r ' ){
188                         text[i ++ ] = c;
189                     }
190                 }
191                 n = i;
192                 editor -> setText(text,n);
193 #endif
194             }
195              // Kill wait cursor
196             getApp() -> endWaitCursor();
197              // Free buffer
198             freeElms(text);
199              return true ;
200         }
201     }
202     editor -> setText( "" );
203
204      return false ;
205 }
206
207 int main( int argc, char * argv[])
208 {
209     FXApp app;
210     app.init(argc,argv);
211     TextWindow * win = new TextWindow( & app);
212     app.create();
213      return app.run();
214 }
215
216