450 lines
16 KiB
Groff
450 lines
16 KiB
Groff
.de It
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.br
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.ie \\n(.$>=3 .ne \\$3
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.el .ne 3
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.IP "\\$1" \\$2
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..
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.TH cdk_viewer 3 "24 April 1997"
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.SH NAME
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newCDKViewer, activateCDKViewer, setCDKViewer,
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setCDKViewerInfo, getCDKViewerInfo,
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setCDKViewerTitle, getCDKViewerTitle,
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setCDKViewerHighlight, getCDKViewerHighlight,
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setCDKViewerInfoLine, getCDKViewerInfoLine,
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setCDKViewerBox, getCDKViewerBox,
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setCDKViewerULChar, setCDKViewerURChar,
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setCDKViewerLLChar, setCDKViewerLRChar,
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setCDKViewerVerticalChar, setCDKViewerHorizontalChar,
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setCDKViewerBoxAttribute,
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setCDKViewerBackgroundColor,
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drawCDKViewer, eraseCDKViewer,
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destroyCDKViewer \- Creates a managed curses viewer list widget.
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.SH SYNOPSIS
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.LP
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.B cc
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.RI "[ " "flag" " \|.\|.\|. ] " "file" " \|.\|.\|."
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.B \-lcdk
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.RI "[ " "library" " \|.\|.\|. ]"
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.LP
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#include <cdk.h>
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.LP
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.BI "CDKVIEWER *newCDKViewer (CDKSCREEN *" "cdkscreen",
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.BI "int " "xpos",
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.BI "int " "ypos",
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.BI "int " "height",
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.BI "int " "width",
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.BI "char **" "buttonList",
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.BI "int " "buttonCount",
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.BI "chtype " "buttonHighlight",
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.BI "boolean " "box",
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.BI "boolean " "shadow");
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.LP
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.BI "int activateCDKViewer (CDKVIEWER *" "viewer");
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.LP
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.BI "void setCDKViewer (CDKVIEWER *" "viewer",
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.BI "char *" "title",
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.BI "char **" "info",
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.BI "int " "infoSize",
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.BI "chtype " "buttonAttribute",
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.BI "boolean " "interpret",
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.BI "boolean " "showLineInfo",
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.BI "boolean " "box");
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.LP
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.BI "void setCDKViewerInfo (CDKVIEWER *" "viewer",
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.BI "char **" "itemList",
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.BI "int " "listSize",
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.BI "boolean " "numbers");
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.LP
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.BI "int getCDKViewerInfo (CDKVIEWER *" "viewer",
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.BI "char **" "itemList");
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.LP
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.BI "void setCDKViewerTitle (CDKVIEWER *" "viewer",
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.BI "char *" "title");
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.LP
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.BI "int getCDKViewerTitle (CDKVIEWER *" "viewer");
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.LP
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.BI "void setCDKViewerHighlight (CDKVIEWER *" "viewer",
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.BI "chtype " "highlight");
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.LP
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.BI "chtype getCDKViewerHighlight (CDKVIEWER *" "viewer");
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.LP
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.BI "void setCDKViewerInfoLine (CDKVIEWER *" "viewer",
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.BI "boolean " "showInfoLine");
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.LP
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.BI "boolean getCDKViewerInfoLine (CDKVIEWER *" "viewer");
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.LP
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.BI "void setCDKViewerULChar (CDKVIEWER *", "viewer",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKViewerURChar (CDKVIEWER *", "viewer",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKViewerLLChar (CDKVIEWER *", "viewer",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKViewerLRChar (CDKVIEWER *", "viewer",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKViewerVerticalChar (CDKVIEWER *", "viewer",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKViewerHorizontalChar (CDKVIEWER *", "viewer",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKViewerBoxAttribute (CDKVIEWER *", "viewer",
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.BI "chtype " "character");
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.LP
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.BI "void setCDKViewerBackgroundColor (CDKVIEWER *", "viewer",
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.BI "char * " "color");
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.LP
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.BI "void moveCDKViewer (CDKVIEWEE *" "viewer",
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.BI "int " "box",
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.BI "int " "box",
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.BI "boolean " "relative",
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.BI "boolean " "refresh");
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.LP
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.BI "void positionCDKViewer (CDKVIEWEE *" "viewer");
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.LP
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.BI "void drawCDKViewer (CDKVIEWER *" "viewer",
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.BI "boolean " "box");
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.LP
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.BI "void eraseCDKViewer (CDKVIEWER *" "viewer");
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.LP
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.BI "void destroyCDKViewer (CDKVIEWER *" "viewer");
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.LP
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.BI "void bindCDKObject (EObjectType " "widgetType",
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.BI "void *" "object",
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.BI "chtype " "key",
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.BI "BINDFN " "function",
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.BI "void *" "data");
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.SH DESCRIPTION
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The Cdk viewer widget creates a file viewer widget. This widget allows a user
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to interact with a file. It does \f4NOT\f1 allow editing, this is view only.
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The following are functions which create or manipulate the Cdk viewer list
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widget.
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.SH AVAILABLE FUNCTIONS
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CDKVIEWER *newCDKViewer (CDKSCREEN *\f2screen\f1, int \f2xpos\f1, int \f2ypos\f1, int \f2height\f1, int \f2width\f1, char **\f2buttons\f1, int \f2buttonCount\f1, chtype \f2buttonHighlight\f1, boolean \f2box\f1, boolean \f2shadow\f1);
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.RS 3
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This function creates a pointer to a viewer widget. The \f2screen\f1 parameter
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is the screen you wish this widget to be placed in. The parameter \f2xpos\f1
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controls the placement of the object along the horizontal axis. This parameter
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can accept an integer value or one of the pre-defined values of \f4LEFT\f1,
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\f4RIGHT\f1, and \f4CENTER\f1. The parameter \f2ypos\f1 controls the placement
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of the object along the vertical axis. This parameter can accept an integer
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value or one of the pre-defined values of \f4TOP\f1, \f4BOTTOM\f1, and \f4CENTER\f1.
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The parameters \f2height\f1 and \f2width\f1 state how tall and wide the viewer
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window is to be. The \f2buttons\f1 is an array of the button labels which are
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to be attached to the viewer on the bottom; \f2buttonCount\f1 tells the viewer
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how many buttons there are. The parameter \f2buttonHighlight\f1 is the highlight
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attribute of the currently selected button. The \f2box\f1 parameter states
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whether the widget will be drawn with a box around it or not. The \f2shadow\f1
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parameter accepts a boolean value to turn the shadow on or off around this widget.
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If the widget could not be created then a \f4NULL\f1 pointer is returned.
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.RE
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int activateCDKViewer (CDKVIEWER *\f2viewer\f1);
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.RS 3
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This function activates the viewer widget and lets the user interact with the
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widget. The parameter \f2viewer\f1 is a pointer to a non-NULL viewer widget.
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If the \f2actions\f1 parameter is passed with a non-NULL value, the characters
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in the array will be injected into the widget. To activate the widget
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interactively pass in a \f4NULL\f1 pointer for \f2actions\f1. If the character entered
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into this widget is \f4RETURN\f1 then this function will return a value from
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0 to the number of buttons -1, representing the button selected. It will also
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set the structure member \f4exitType\f1 to \f4vNORMAL\f1. If the character
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entered into this widget was \f4ESCAPE\f1 then the widget will return
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a value of -1 and the structure member \f4exitType\f1 will be set to
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\f4vESCAPE_HIT\f1.
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.RE
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void setCDKViewer (CDKVIEWER *\f2viewer\f1, char *\f2title\f1, char **\f2info\f1, int \f2infoSize\f1, chtype \f2buttonAttribute\f1, boolean \f2interpret\f1, boolean \f2showLineInfo\f1, boolean \f2box\f1);
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.RS 3
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This function lets the programmer modify certain elements of an already defined
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viewer widget. The parameter \f2title\f1 is the title to be displayed on
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the top of the viewer. The parameter \f2info\f1 is the information to display,
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while \f2infoSize\f1 states how many rows there are in the \f2info\f1 array.
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The parameter \f2buttonAttribute\f1 states the attribute of the current
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highlighted button. The boolean parameter \f2interpret\f1 tells the viewer to
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interpret the contents of \f2info\f1 for Cdk display command, or not. The
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\f2showLineInfo\f1 boolean flag tells the viewer to show or not to show the
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line number and percentage in the top left corner of the viewer window. The
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parameters \f2box\f1 and \f2shadow\f1 are the same as in the function
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description of \f4newCDKViewer\f1.
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.RE
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int setCDKViewerInfo (CDKVIEWER *\f2viewer\f1, char **\f2info\f1, int \f2infoSize\f1, boolean \f2interpret\f1);
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.RS 3
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This sets the contents of the viewer widget.
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.RE
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chtype **getCDKViewerInfo (CDKVIEWER *\f2viewer\f1, int *\f2size\f1);
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.RS 3
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This returns the contents of the viewer widget.
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.RE
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void setCDKViewerTitle (CDKVIEWER *\f2viewer\f1, char *\f2title\f1);
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.RS 3
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This sets the title of the widget.
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.RE
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chtype **getCDKViewerTitle (CDKVIEWER *\f2viewer\f1);
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.RS 3
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This returns the title of the widget.
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.RE
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void setCDKViewerHighlight (CDKVIEWER *\f2viewer\f1, chtype \f2buttonHighlight\f1);
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.RS 3
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This sets the highlight attribute of the buttons on the widget.
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.RE
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chtype getCDKViewerHighlight (CDKVIEWER *\f2viewer\f1);
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.RS 3
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This returns the attribute of the buttons.
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.RE
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void setCDKViewerInfoLine (CDKVIEWER *viewer, boolean showLineInfo);
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.RS 3
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This turns on/off the information line in the top left hand corner of
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the widget. If the value of \f2showInfoLine\f1 is \f4TRUE\f1, the information
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line will be displayed. If it is \f4FALSE\f1 it won't.
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.RE
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boolean getCDKViewerInfoLine (CDKVIEWER *viewer);
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.RS 3
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This returns a boolena value stating if the information line is on or off.
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.RE
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void setCDKViewerBox (CDKVIEWER *viewer, boolean Box);
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.RS 3
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This sets whether or not the widget will be draw with a box around it.
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.RE
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boolean getCDKViewerBox (CDKVIEWER *viewer);
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.RS 3
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This returns whether or not the widget will be drawn with a box around it.
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.RE
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void setCDKViewerULChar (CDKVIEWER *\f2viewer\f1, chtype \f2character\f1);
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.RS 3
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This function sets the upper left hand corner of the widgets box to
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the given character.
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.RE
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void setCDKViewerURChar (CDKVIEWER *\f2viewer\f1, chtype \f2character\f1);
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.RS 3
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This function sets the upper right hand corner of the widgets box to
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the given character.
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.RE
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void setCDKViewerLLChar (CDKVIEWER *\f2viewer\f1, chtype \f2character\f1);
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.RS 3
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This function sets the lower left hand corner of the widgets box to
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the given character.
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.RE
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void setCDKViewerLRChar (CDKVIEWER *\f2viewer\f1, chtype \f2character\f1);
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.RS 3
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This function sets the lower right hand corner of the widgets box to
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the given character.
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.RE
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void setCDKViewerVerticalChar (CDKVIEWER *\f2viewer\f1, chtype \f2character\f1);
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.RS 3
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This function sets the vertical drawing character for the box to
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the given character.
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.RE
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void setCDKViewerHorizontalChar (CDKVIEWER *\f2viewer\f1, chtype \f2character\f1);
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.RS 3
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This function sets the horizontal drawing character for the box to
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the given character.
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.RE
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void setCDKViewerBoxAttribute (CDKVIEWER *\f2viewer\f1, chtype \f2attribute\f1);
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.RS 3
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This function sets the attribute of the box.
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.RE
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void setCDKViewerBackgroundColor (CDKVIEWER *\f2viewer\f1, char *\f2color\f1);
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.RS 3
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This sets the background color of the widget. The parameter \f2color\f1
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is in the format of the Cdk format strings. To get more information look
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at the \f4cdk_display\f1 manual page.
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.RE
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void moveCDKViewer (CDKVIEWEE *\f2viewer\f1, int \f2xpos\f1, int \f2ypos\f1, boolean \f2relative\f1, boolean \f2refresh\f1);
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.RS 3
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This function moves the given widget to the given position. The parameters
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\f2xpos\f1 and \f2ypos\f1 is the new position of the widget. The parameter
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\f2xpos\f1 can accept an integer value or one of the pre-defined values of
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\f4TOP\f1, \f4BOTTOM\f1, and \f4CENTER\f1. The parameter \f2ypos\f1 can
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accept an integer value or one of the pre-defined values of \f4LEFT\f1,
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\f4RIGHT\f1, and \f4CENTER\f1. The parameter \f2relative\f1 states whether
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the \f2xpos\f1/\f2ypos\f1 pair is a relative move or an absolute move. For
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example if \f2xpos\f1 = 1 and \f2ypos\f1 = 2 and \f2relative\f1 = \f2TRUE\f1,
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then the widget would move one row down and two columns right. If the value
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of \f2relative\f1 was \f2FALSE\f1 then the widget would move to the position
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(1,2). Do not use the values of \f4TOP\f1, \f4BOTTOM\f1, \f4LEFT\f1,
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\f4RIGHT\f1, or \f4CENTER\f1 when \f2relative\f1 = \f4TRUE\f1. (weird things
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may happen). The final parameter \f2refresh\f1 is a boolean value which
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states whether the widget will get refreshed after the move or not.
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.RE
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void positionCDKViewer (CDKVIEWEE *\f2viewer\f1);
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.RS 3
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This function allows the user to move the widget around the screen via the
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cursor/keypad keys. The following key bindings can be used to move the
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widget around the screen.
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.LP
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.nf
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\f4Key Bindings\f1
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.RS 3
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\f2Key Action\f1
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Up Arrow Moves the widget up one line.
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Down Arrow Moves the widget down one line.
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Left Arrow Moves the widget left one column
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Right Arrow Moves the widget right one column
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Keypad-1 Moves the widget down one line
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and left one column.
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Keypad-2 Moves the widget down one line.
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Keypad-3 Moves the widget down one line
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and right one column.
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Keypad-4 Moves the widget left one column
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Keypad-5 Centers the widget both vertically
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and horizontally.
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Keypad-6 Moves the widget right one column
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Keypad-7 Moves the widget up one line
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and left one column.
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Keypad-8 Moves the widget up one line.
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Keypad-9 Moves the widget up one line
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and right one column.
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t Moves the widget to the top of the screen.
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b Moves the widget to the bottom of the screen.
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l Moves the widget to the left of the screen.
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r Moves the widget to the right of the screen.
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c Centers the widget between the left and
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right of the window.
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C Centers the widget between the top and
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bottom of the window.
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Escape Returns the widget to its original position.
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Return Exits the function and leaves the widget
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where it was.
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.fi
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.RE
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.RS 3
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.LP
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Keypad means that if the keyboard you are using has a keypad, then the
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Num-Lock light has to be on in order to use the keys as listed. (The
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numeric keys at the top of the keyboard will work as well.)
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.LP
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void drawCDKViewer (CDKVIEWER *\f2viewer\f1, boolean \f2box\f1);
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.RS 3
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This function draws the viewer widget on the screen. The \f2box\f1 option
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draws the widget with or without a box.
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.RE
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void eraseCDKViewer (CDKVIEWER *\f2viewer\f1);
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.RS 3
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This function removes the widget from the screen. This does \f4NOT\f1 destroy
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the widget.
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.RE
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void destroyCDKViewer (CDKVIEWER *\f2viewer\f1);
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.RS 3
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This function removes the widget from the screen and frees up any memory the
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object may be using.
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.RE
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void bindCDKObject (EObjectType \f2widgetType\f1, void *\f2object\f1, char \f2key\f1, BINDFN \f2function\f1, void *\f2data\f1);
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.RS 3
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This function allows the user to create special key bindings. The
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\f2widgetType\f1 parameter is a defined type which states what Cdk object
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type is being used. To learn more about the type \f4EObjectType\f1 read
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the \f4cdk_binding\f1 manual page. The \f2object\f1 parameter is the pointer
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to the widget object. The \f2key\f1 is the character to bind. The
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\f2function\f1 is the function type. To learn more about the key binding
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call-back function types read the \f4cdk_binding\f1 manual page. The last
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parameter \f2data\f1 is a pointer to any data that needs to get passed to
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the call-back function.
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.RE
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.SH KEY BINDINGS
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When the widget is activated there are several default key bindings which will
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help the user enter or manipulate the information quickly. The following table
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outlines the keys and their actions for this widget.
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.LP
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.nf
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.RS 3
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\f2Key Action\f1
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Left Arrow Shifts the contents of the
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viewer one character left.
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Right Arrow Shifts the contents of the
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viewer one character left
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Up Arrow Scrolls the contents of the
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viewer one line up.
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Down Arrow Scrolls the contents of the
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viewer one line up.
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Prev Page Moves one page backwards.
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Ctrl-B Moves one page backwards.
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B Moves one page backwards.
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b Moves one page backwards.
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Next Page Moves one page forwards.
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Ctrl-F Moves one page forwards.
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Space Moves one page forwards.
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F Moves one page forwards.
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f Moves one page forwards.
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Home Shifts the whole list to
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the far left.
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| Shifts the whole list to
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the far left.
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End Shifts the whole list to
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the far right
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$ Shifts the whole list to
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the far right.
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g Moves to the first line
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in the viewer.
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1 Moves to the first line
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in the viewer.
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G Moves to the last line
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in the viewer.
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L Moves half the distance
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to the end of the viewer.
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l Moves half the distance
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to the top of the viewer.
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? Searches up for a pattern.
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/ Searches down for a pattern.
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n Repeats last search.
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: Jumps to a given line.
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i Displays file statistics.
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s Displays file statistics.
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Tab Switches buttons.
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Return Exits the widget and returns
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an integer value representing
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which button was selected. This
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also sets the structure member
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\f4exitType\f1 in the widget pointer
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to the value of \f4vNORMAL\f1.
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|
Escape Exits the widget and returns -1.
|
|
This also sets the structure
|
|
member \f4exitType\f1 in the
|
|
widget pointer to the value of
|
|
\f4vESCAPE_HIT\f1.
|
|
Ctrl-L Refreshes the screen.
|
|
.RE
|
|
.fi
|
|
.SH SEE ALSO
|
|
.BR cdk (3),
|
|
.BR cdk_binding (3),
|
|
.BR cdk_display (3),
|
|
.BR cdk_screen (3)
|
|
.SH NOTES
|
|
.PP
|
|
The header file \f4<cdk.h>\f1 automatically includes the header files
|
|
\f4<curses.h>\f1, \f4<stdlib.h>\f1, \f4<string.h>\f1, \f4<ctype.h>\f1,
|
|
\f4<unistd.h>\f1, \f4<dirent.h>\f1, \f4<time.h>\f1, \f4<errno.h>\f1,
|
|
\f4<pwd.h>\f1, \f4<grp.h>\f1, \f4<sys/stat.h>\f1, and \f4<sys/types.h>\f1.
|
|
The \f4<curses.h>\f1 header file includes \f4<stdio.h>\f1 and \f4<unctrl.h>\f1.
|
|
.PP
|
|
If you have \f4Ncurses\f1 installed on your machine add -DNCURSES to the
|
|
compile line to include the Ncurses header files instead.
|