/usr/include/tclutil/TkImage.h is in skycat 3.1.2+starlink1~b+dfsg-1.
This file is owned by root:root, with mode 0o644.
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#ifndef _TkImage_H_
#define _TkImage_H_
/*
* E.S.O. - VLT project
* "@(#) $Id: TkImage.h,v 1.1.1.1 2009/03/31 14:11:52 cguirao Exp $"
*
* TkImage.h - base class for Tk images implemented in C++.
*
* This class adds some features to the TclCommand class for
* implementing Tk image types.
*
* See the man page for a complete description.
*
* who when what
* -------------- -------- ----------------------------------------
* Allan Brighton 05/10/95 Created
* 10/03/98 Pass config options to constructor as pointer
* instead of reference.
*/
#include <tk.h>
#include "TclCommand.h"
/*
* This class or a class derived from it is used to hold the values
* modified by the configure image command
*/
class TkImageOptions {
public:
};
/*
* This is the base class for classes defining tk images from
* C++ classes.
* In this class, only one instance of an image may be displayed,
* in a window, however multiple views of the image with varying
* sizes may be displayed (I didn't see any need for exact copies
* of the same image in the same size...)
*/
class TkImage : public TclCommand {
protected:
Tk_ImageMaster master_; // passed from the Tk imaging routines
TkImageOptions* optionsPtr_; // ptr to class or struct holding option values
Tk_ConfigSpec* configSpecsPtr_; // ptr to configSpecs array for Tk options
int refCount_; // Number of instances that share this
// image (may only be one here).
Tk_Window tkwin_; // Window in which the image will be displayed.
Display *display_; // X token for the window's display
Visual *visual_; // X visual for window
Screen *screen_; // X screen for window
GC gc_; // Graphics context for copying to screen
Pixmap pm_; // Pixmap for storing the image
int width_; // total width of image
int height_; // total height of image
int pixw_; // width of X pixmap, if used
int pixh_; // height of X pixmap, if used
int depth_; // depth of screen
char* pclass_; // if specified, restrict images to only be displayed
// in widgets of that class
int update_pending_; // flag: true if image needs to be updated
int initialized_; // flag: true after image has been initialized
// (configured, after constructor is done)
// -- member functions --
// do first time image configuration
virtual int initImage(int argc, char* argv[]);
// configure the image with cmd line options.
virtual int configureImage(int argc, char* argv[], int flags = 0);
// these are called indirectly by the Tk imaging routines
virtual TkImage* getImage(Tk_Window);
virtual void displayImage(Drawable, int imageX, int imageY,
int width, int height,
int drawableX, int drawableY) = 0;
// update the image display eventually
virtual void imageChanged();
// make the X graphics context
void makeGC();
// set the image size and create/update a pixmap, if use_pixmap is 1
int setImageSize(int width, int height, int use_pixmap, int pixw, int pixh);
// utility method: equivalent of Tk "update idletasks" command
void updateIdleTasks();
// call a member function by name
virtual int call(const char* name, int len, int argc, char* argv[]);
public:
// constructor
TkImage(Tcl_Interp* interp, const char* cmdname, const char* instname,
Tk_ConfigSpec* specs, TkImageOptions* options,
Tk_ImageMaster master, char* pclass = NULL);
// destructor
virtual ~TkImage();
// the following static methods are called by the Tk image handling routines
static ClientData GetImage(Tk_Window, ClientData);
static void DisplayImage(ClientData, Display*, Drawable,
int imageX, int imageY,
int width, int height,
int drawableX, int drawableY);
static void FreeImage(ClientData, Display*);
static void DeleteImage(ClientData);
// implement the configure Tk command
virtual int configureCmd(int argc, char* argv[]);
// called for the cget image command
virtual int cgetCmd(int argc, char* argv[]);
// delete tcl subcommand
// (should probably redefine to use "image delete $image")
virtual int deleteCmd(int argc, char* argv[]);
// set options pointer
void setOptionsPtr(char * ptr) {optionsPtr_ = (TkImageOptions *)ptr;}
};
#endif /* _TkImage_H_ */
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