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drv.c File Reference

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "iup.h"
#include "iupkey.h"
#include "iupgl.h"
#include "iupcontrols.h"
#include "prj.h"
#include "prm.h"

Include dependency graph for drv.c:

Go to the source code of this file.

Project driver module.
Date: 07-Nov-2005 Author: Luiz F. Martha Version: 1.0 This file contains the driver function for the third assignment of course CIV 2801 - Fundamentos de Computacao Grafica Aplicada - 2005.2. See documentation on class notes. Revisions: Version 1.0 by L.F. Martha on 07-Nov-2005: Initial version.
FILE *	drvOpenFile (char *mode)
	This function prompts the user for a file name and opens the file.
void	drvResize (int width, int height, void *h)
	Callback function for canvas resize event (see VGL documentation).
void	drvRedisplay (void *h)
	Callback function for canvas redisplay event (see VGL documentation).
void	drvMouseBt (int bt, int mode, float x, float y, void *data)
	Callback function for mouse button event on canvas (see VGL documentation).
void	drvMouseMv (int bt, float x, float y, void *data)
	Callback function for mouse movement event on canvas (see VGL documentation).
int	drvSetHeightFac (Ihandle *val, double fac)
	Callback function for primitive height valuator event (see IUP documentation).
int	drvKeyCrtl (Ihandle *dg, int key)
	Callback function for keyboard event (see IUP documentation).
int	main (int argc, char *argv[])
	This is the main driver of the program.
Ihandle *	Omain
	Main dialog handle.
Ihandle *	Otopmsg
	Handle to top message label.
Ihandle *	Oheightval
	Handle to height valuator.
int	cv_height
	canvas vertical size in pixels
int	cv_width
	canvas horizontal size in pixels
int	doing_help = 0
	Flag for doing help.
char	file_name [256]
	String that holds the current opened file name.

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Function Documentation

int drvKeyCrtl (  Ihandle *    dg, int    key )  [static]

Callback function for keyboard event (see IUP documentation). This function takes an appropriate action according to the given key that was pressed by the user and passed as a parameter. Parameters: dg  - handle to IUP main dialog object (in) key  - pressed key identifier (in) Returns: IUP_DEFAULT value or IUP_CLOSE value (if key is CONTROL+Q) Definition at line 286 of file drv.c. References doing_help, drvOpenFile(), Otopmsg, prjFit(), prjInfo(), prjManipMode(), prjNavigMode(), prjOpenModel(), prjOrtho(), prjPersp(), prjProjX(), prjProjY(), prjProjZ(), prjQuit(), prjResetView(), prjZbufferSnapShot(), prjZoomMode(), and vglcanvas. Referenced by main().

void drvMouseBt (  int    bt, int    mode, float    x, float    y, void *    data )  [static]

Callback function for mouse button event on canvas (see VGL documentation). Parameters: bt  - button identifier (in) mode  - mode (button pressed or released) (in) x, y  - mouse raster position (left-top origin) (in) data  - dummy data (not used) (in) Definition at line 197 of file drv.c. References cv_height, cv_width, doing_help, Oheightval, Otopmsg, prjGetHeightFac(), prjRaster2WorldXY(), and prjSelectPrm(). Referenced by main().

void drvMouseMv (  int    bt, float    x, float    y, void *    data )  [static]

Callback function for mouse movement event on canvas (see VGL documentation). In this implementation it does nothing. Parameters: bt  - button identifier (in) x, y  - mouse raster position (left-top origin) (in) data  - dummy data (not used) (in) Definition at line 242 of file drv.c. Referenced by main().

FILE* drvOpenFile (  char *    mode )  [static]

This function prompts the user for a file name and opens the file. Parameters: mode  - reading ("r") or writing ("w") mode (in) Returns: Pointer to opened file Definition at line 83 of file drv.c. References file_name. Referenced by drvKeyCrtl().

void drvRedisplay (  void *    h )  [static]

Callback function for canvas redisplay event (see VGL documentation). It redisplays the model or the help message on the canvas. Parameters: h  - dummy handle (not used) (in) Definition at line 170 of file drv.c. References doing_help, Otopmsg, prjHelp(), prjRedisplay(), and prmFirst(). Referenced by main().

void drvResize (  int    width, int    height, void *    h )  [static]

Callback function for canvas resize event (see VGL documentation). It changes the visualization parameters according to the given canvas sizes. Parameters: width  - new canvas width (in) height  - new canvas height (in) h  - dummy handle (not used) (in) Definition at line 154 of file drv.c. References cv_height, cv_width, Odatascreen, and prjResize(). Referenced by main().

int drvSetHeightFac (  Ihandle *    val, double    fac )  [static]

Callback function for primitive height valuator event (see IUP documentation). This function sets the new value for the current selected primitive height according to the given height factor. Parameters: val  - handle to IUP primitive height valuator (in) fac  - new valuator factor value (in) Returns: IUP_DEFAULT value Definition at line 267 of file drv.c. References prjSetHeightFac(). Referenced by main().

int main (  int    argc, char *    argv[] )

This is the main driver of the program. The program launches an user interface window on the screen and waits for an user action. Parameters: argc  - number of arguments (not used) (in) argv  - list of string arguments (not used) (in) Returns: Program status: success (0) or failure (1) Definition at line 398 of file drv.c. References drvKeyCrtl(), drvMouseBt(), drvMouseMv(), drvRedisplay(), drvResize(), drvSetHeightFac(), Odatascreen, Oheightval, Omain, Otopmsg, prjInit(), and vglcanvas.

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Variable Documentation

int cv_height [static]

canvas vertical size in pixels Definition at line 59 of file drv.c. Referenced by drvMouseBt(), and drvResize().

int cv_width [static]

canvas horizontal size in pixels Definition at line 61 of file drv.c. Referenced by drvMouseBt(), and drvResize().

int doing_help = 0

Flag for doing help. Definition at line 63 of file drv.c. Referenced by drvKeyCrtl(), drvMouseBt(), and drvRedisplay().

char file_name[256] [static]

String that holds the current opened file name. Definition at line 65 of file drv.c. Referenced by drvOpenFile().

Ihandle* Oheightval [static]

Handle to height valuator. Definition at line 57 of file drv.c. Referenced by drvMouseBt(), and main().

Ihandle* Omain [static]

Main dialog handle. Definition at line 53 of file drv.c. Referenced by main().

Ihandle* Otopmsg [static]

Handle to top message label. Definition at line 55 of file drv.c. Referenced by drvKeyCrtl(), drvMouseBt(), drvRedisplay(), and main().

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