cdk_viewer - curses viewer list widget.
cc [
flag ... ]
file ...
-lcdk [
library ...
]
#include <cdk.h>
- int activateCDKViewer (
-
CDKVIEWER *viewer);
- void cleanCDKViewer (
-
CDKVIEWER *viewer);
- void destroyCDKViewer (
-
CDKVIEWER *viewer);
- void drawCDKViewer (
-
CDKVIEWER *viewer,
boolean box);
- void eraseCDKViewer (
-
CDKVIEWER *viewer);
- boolean getCDKViewerBox (
-
CDKVIEWER *viewer);
- chtype getCDKViewerHighlight (
-
CDKVIEWER *viewer);
- chtype **getCDKViewerInfo (
-
CDKVIEWER *viewer,
char **itemList);
- boolean getCDKViewerInfoLine (
-
CDKVIEWER *viewer);
- chtype **getCDKViewerTitle (
-
CDKVIEWER *viewer);
- void moveCDKViewer (
-
CDKVIEWEE *viewer,
int box,
int box,
boolean relative,
boolean refresh);
- CDKVIEWER *newCDKViewer (
-
CDKSCREEN *cdkscreen,
int xpos,
int ypos,
int height,
int width,
CDK_CONST char **buttonList,
int buttonCount,
chtype buttonHighlight,
boolean box,
boolean shadow);
- void positionCDKViewer (
-
CDKVIEWER *viewer);
- void setCDKViewer (
-
CDKVIEWER *viewer,
const char *title,
CDK_CONST char **list,
int listSize,
chtype buttonAttribute,
boolean interpret,
boolean showLineInfo,
boolean box);
- void setCDKViewerBackgroundAttrib (
-
CDKVIEWER *viewer,
chtype attribute);
- void setCDKViewerBackgroundColor (
-
CDKVIEWER *viewer,
const char * color);
- void setCDKViewerBox (
-
CDKVIEWER *viewer,
boolean Box);
- void setCDKViewerBoxAttribute (
-
CDKVIEWER *viewer,
chtype character);
- void setCDKViewerHighlight (
-
CDKVIEWER *viewer,
chtype highlight);
- void setCDKViewerHorizontalChar (
-
CDKVIEWER *viewer,
chtype character);
- void setCDKViewerInfo (
-
CDKVIEWER *viewer,
CDK_CONST char **list,
int listSize,
boolean interpret);
- void setCDKViewerInfoLine (
-
CDKVIEWER *viewer,
boolean showInfoLine);
- void setCDKViewerLLChar (
-
CDKVIEWER *viewer,
chtype character);
- void setCDKViewerLRChar (
-
CDKVIEWER *viewer,
chtype character);
- void setCDKViewerTitle (
-
CDKVIEWER *viewer,
const char *title);
- void setCDKViewerULChar (
-
CDKVIEWER *viewer,
chtype character);
- void setCDKViewerURChar (
-
CDKVIEWER *viewer,
chtype character);
- void setCDKViewerVerticalChar (
-
CDKVIEWER *viewer,
chtype character);
The Cdk viewer widget creates a file viewer widget. This widget allows a user to
interact with a file. It does
NOT allow editing, this is view only. The
following are functions which create or manipulate the Cdk viewer list widget.
- activateCDKViewer
- activates the viewer widget and lets the user interact with
the widget.
- •
- The parameter viewer is a pointer to a non-NULL
viewer widget.
- •
- If the actions parameter is passed with a non-NULL
value, the characters in the array will be injected into the widget.
- To activate the widget interactively pass in a NULL
pointer for actions.
- If the character entered into this widget is RETURN
then this function will return a value from 0 to the number of buttons -1,
representing the button selected. It will also set the widget data
exitType to vNORMAL.
- If the character entered into this widget was ESCAPE
then the widget will return a value of -1 and the widget data
exitType will be set to vESCAPE_HIT.
- cleanCDKViewer
- clears the information from the window.
- destroyCDKViewer
- removes the widget from the screen and frees memory the
object used.
- drawCDKViewer
- draws the viewer widget on the screen. If the box
option is true, the widget is drawn with a box.
- eraseCDKViewer
- removes the widget from the screen. This does NOT
destroy the widget.
- getCDKViewerBox
- returns true if the widget will be drawn with a box around
it.
- getCDKViewerHighlight
- returns the attribute of the buttons.
- getCDKViewerInfo
- returns the contents of the viewer widget.
- getCDKViewerInfoLine
- returns true if the information line is on.
- getCDKViewerTitle
- returns the title of the widget.
- moveCDKViewer
- function moves the given widget to the given position.
- •
- The parameters xpos and ypos are the new
position of the widget.
- The parameter xpos may be an integer or one of the
pre-defined values TOP, BOTTOM, and CENTER.
- The parameter ypos may be an integer or one of the
pre-defined values LEFT, RIGHT, and CENTER.
- •
- The parameter relative states whether the
xpos/ ypos pair is a relative move or an absolute move.
- For example, if xpos = 1 and ypos = 2 and
relative = TRUE, then the widget would move one row down and
two columns right. If the value of relative was FALSE then
the widget would move to the position (1,2).
- Do not use the values TOP, BOTTOM,
LEFT, RIGHT, or CENTER when relative =
TRUE. (weird things may happen).
- •
- The final parameter refresh is a boolean value which
states whether the widget will get refreshed after the move.
- *newCDKViewer
- function creates a viewer widget and returns a pointer to
it. Parameters:
- screen
- is the screen you wish this widget to be placed in.
- xpos
- controls the placement of the object along the horizontal
axis. It may be an integer or one of the pre-defined values LEFT,
RIGHT, and CENTER.
- ypos
- controls the placement of the object along the vertical
axis. It may be an integer or one of the pre-defined values TOP,
BOTTOM, and CENTER.
-
height and
- width
- are the height and width of the viewer window.
- buttons
- is an array of the button labels which are to be attached
to the viewer on the bottom.
- buttonCount
- is the number of buttons in buttons.
- buttonHighlight
- is the highlight attribute of the currently selected
button.
- box
- is true if the widget should be drawn with a box around
it.
- shadow
- turns the shadow on or off around this widget.
- If the widget could not be created then a NULL
pointer is returned.
- positionCDKViewer
- allows the user to move the widget around the screen via
the cursor/keypad keys. See cdk_position (3) for key bindings.
- setCDKViewer
- lets the programmer modify several elements of an existing
viewer widget.
- •
-
title is the title to be displayed on the top of the
viewer.
- •
-
list is the information to display,
- •
-
listSize states how many rows there are in the
list array. If listSize is negative, list is scanned
to find its length, including files which will be included via embedded
links.
- •
-
buttonAttribute states the attribute of the current
highlighted button.
- •
- The boolean parameter interpret tells the viewer to
interpret the contents of list for Cdk display command.
- •
- The showLineInfo boolean flag tells the viewer to
show to show the line number and percentage in the top left corner of the
viewer window.
- •
- The parameters box and shadow are the same as
in the function description of newCDKViewer.
- setCDKViewerBackgroundAttrib
- sets the background attribute of the widget.
- The parameter attribute is a curses attribute, e.g.,
A_BOLD.
- setCDKViewerBackgroundColor
- sets the background color of the widget.
- The parameter color is in the format of the Cdk
format strings.
- See cdk_display (3).
- setCDKViewerBox
- sets whether the widget will be drawn with a box around
it.
- setCDKViewerBoxAttribute
- sets the attribute of the box.
- setCDKViewerHighlight
- sets the highlight attribute of the buttons on the
widget.
- setCDKViewerHorizontalChar
- sets the horizontal drawing character for the box to the
given character.
- setCDKViewerInfo
- sets the contents of the viewer widget.
- See setCDKViewer for parameter descriptions.
- setCDKViewerInfoLine
- turns on/off the information line in the top left hand
corner of the widget. If the value of showInfoLine is TRUE,
the information line will be displayed. If it is FALSE it
won't.
- setCDKViewerLLChar
- sets the lower left hand corner of the widget's box to the
given character.
- setCDKViewerLRChar
- sets the lower right hand corner of the widget's box to the
given character.
- setCDKViewerTitle
- sets the title of the widget.
- setCDKViewerULChar
- sets the upper left hand corner of the widget's box to the
given character.
- setCDKViewerURChar
- sets the upper right hand corner of the widget's box to the
given character.
- setCDKViewerVerticalChar
- sets the vertical drawing character for the box to the
given character.
When the widget is activated there are several default key bindings which will
help the user enter or manipulate the information quickly. The following table
outlines the keys and their actions for this widget.
| Key |
Action |
|
| Left Arrow |
Shifts the viewport one column left. |
| Right Arrow |
Shifts the viewport one column left |
| Up Arrow |
Scrolls the viewport one line up. |
| Down Arrow |
Scrolls the viewport one line down. |
|
| Prev Page |
|
| Ctrl-B |
|
| B |
|
| b |
Scroll one page backward. |
|
| Next Page |
|
| Ctrl-F |
|
| Space |
|
| F |
|
| f |
Scroll one page forward. |
|
| Home |
|
| | |
Shift the whole list to the far left. |
|
| End |
|
| $ |
Shift the whole list to the far right. |
|
| 1 |
|
| < |
|
| g |
Moves to the first line in the viewer. |
|
| > |
|
| G |
Moves to the last line in the viewer. |
|
| L |
Moves half the distance to the end of the viewer. |
| l |
Moves half the distance to the top of the viewer. |
|
| ? |
Searches up for a pattern. |
| / |
Searches down for a pattern. |
| n |
Repeats last search. |
| N |
Repeats last search, reversed direction. |
| : |
Jumps to a given line. |
|
| i |
Displays file statistics. |
| s |
Displays file statistics. |
|
| Tab |
Switches buttons. |
| Return |
Exit the widget and return the index of the selected button. Set the
widget data exitType to vNORMAL. |
| Escape |
Exit the widget and return -1. Set the widget data exitType to
vESCAPE_HIT. |
| Ctrl-L |
Refreshes the screen. |
cdk(3),
cdk_binding(3),
cdk_display(3),
cdk_position(3),
cdk_screen(3)