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demo.cc
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C/C++ Source or Header
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2002-10-24
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494 lines
/*
* Silly demo program for the NCursesPanel class.
*
* written by Anatoly Ivasyuk (anatoly@nick.csh.rit.edu)
*
* Demo code for NCursesMenu and NCursesForm written by
* Juergen Pfeifer
* Contact: http://www.familiepfeifer.de/Contact.aspx?Lang=en
*
* $Id: demo.cc,v 1.22 2002/07/06 15:47:52 juergen Exp $
*/
#include "cursesapp.h"
#include "cursesm.h"
#include "cursesf.h"
#if HAVE_LIBC_H
# include <libc.h>
#endif
extern "C" unsigned int sleep(unsigned int);
#undef index // needed for NeXT
//
// -------------------------------------------------------------------------
//
class SillyDemo
{
public:
void run(int sleeptime) {
NCursesPanel *std = new NCursesPanel();
// Make a few small demo panels
NCursesPanel *u = new NCursesPanel(8,20,12,4);
NCursesPanel *v = new NCursesPanel(8,20,10,6);
NCursesPanel *w = new NCursesPanel(8,20,8,8);
NCursesPanel *x = new NCursesPanel(8,20,6,10);
NCursesPanel *y = new NCursesPanel(8,20,4,12);
NCursesPanel *z = new NCursesPanel(8,30,2,14);
// Draw something on the main screen, so we can see what happens
// when panels get moved or deleted.
std->box();
std->move(std->height()/2,1);
std->hline(std->width()-2);
std->move(1,std->width()/2);
std->vline(std->height()-2);
std->addch(0,std->width()/2,ACS_TTEE);
std->addch(std->height()-1,std->width()/2,ACS_BTEE);
std->addch(std->height()/2,0,ACS_LTEE);
std->addch(std->height()/2,std->width()-1,ACS_RTEE);
std->addch(std->height()/2,std->width()/2,ACS_PLUS);
// Draw frames with titles around panels so that we can see where
// the panels are located.
u->boldframe("Win U");
v->frame("Win V");
w->boldframe("Win W");
x->frame("Win X");
y->boldframe("Win Y");
z->frame("Win Z");
if (NCursesApplication::getApplication()->useColors()) {
u->bkgd(' '|COLOR_PAIR(1));
w->bkgd(' '|COLOR_PAIR(1));
y->bkgd(' '|COLOR_PAIR(1));
v->bkgd(' '|COLOR_PAIR(2));
x->bkgd(' '|COLOR_PAIR(2));
z->bkgd(' '|COLOR_PAIR(2));
}
// A refresh to any valid panel updates all panels and refreshes
// the screen. Using std is just convenient - We know it's always
// valid until the end of the program.
std->refresh();
sleep(sleeptime);
// Show what happens when panels are deleted and moved.
sleep(sleeptime);
delete u;
std->refresh();
sleep(sleeptime);
delete z;
std->refresh();
sleep(sleeptime);
delete v;
std->refresh();
// show how it looks when a panel moves
sleep(sleeptime);
y->mvwin(5,30);
std->refresh();
sleep(sleeptime);
delete y;
std->refresh();
// show how it looks when you raise a panel
sleep(sleeptime);
w->top();
std->refresh();
sleep(sleeptime);
delete w;
std->refresh();
sleep(sleeptime);
delete x;
std->clear();
std->refresh();
// Don't forget to clean up the main screen. Since this is the
// last thing using NCursesWindow, this has the effect of
// shutting down ncurses and restoring the terminal state.
sleep(sleeptime);
delete std;
}
};
class UserData
{
private:
int u;
public:
UserData(int x) : u(x) {}
int sleeptime() const { return u; }
};
//
// -------------------------------------------------------------------------
//
template<class T> class MyAction : public NCursesUserItem<T>
{
public:
MyAction (const char* p_name,
const T* p_UserData)
: NCursesUserItem<T>(p_name, (const char*)0, p_UserData)
{};
~MyAction() {}
bool action() {
SillyDemo a;
a.run(NCursesUserItem<T>::UserData()->sleeptime());
return FALSE;
}
};
class QuitItem : public NCursesMenuItem
{
public:
QuitItem() : NCursesMenuItem("Quit") {
}
bool action() {
return TRUE;
}
};
//
// -------------------------------------------------------------------------
//
class Label : public NCursesFormField
{
public:
Label(const char* title,
int row, int col)
: NCursesFormField(1,(int)::strlen(title),row,col) {
set_value(title);
options_off(O_EDIT|O_ACTIVE);
}
};
//
// -------------------------------------------------------------------------
//
class MyFieldType : public UserDefinedFieldType {
private:
int chk;
protected:
bool field_check(NCursesFormField& f) {
return TRUE;
}
bool char_check(int c) {
return (c==chk?TRUE:FALSE);
}
public:
MyFieldType(int x) : chk(x) {
}
};
//
// -------------------------------------------------------------------------
//
class TestForm : public NCursesForm
{
private:
NCursesFormField** F;
MyFieldType* mft;
Integer_Field *ift;
Enumeration_Field *eft;
static char *weekdays[];
public:
TestForm() : NCursesForm(13,51,(lines()-15)/2,(cols()-53)/2) {
F = new NCursesFormField*[10];
mft = new MyFieldType('X');
ift = new Integer_Field(0,1,10);
eft = new Enumeration_Field(weekdays);
F[0] = new Label("Demo Entry Form",0,16);
F[1] = new Label("Weekday Enum",2,1);
F[2] = new Label("Number(1-10)",2,21);
F[3] = new Label("Only 'X'",2,35);
F[4] = new Label("Multiline Field (Dynamic and Scrollable)",5,1);
F[5] = new NCursesFormField(1,18,3,1);
F[6] = new NCursesFormField(1,12,3,21);
F[7] = new NCursesFormField(1,12,3,35);
F[8] = new NCursesFormField(4,46,6,1,2);
F[9] = new NCursesFormField();
InitForm(F,TRUE,TRUE);
boldframe();
F[5]->set_fieldtype(*eft);
F[6]->set_fieldtype(*ift);
F[7]->set_fieldtype(*mft);
F[7]->set_maximum_growth(20); // max. 20 characters
F[7]->options_off(O_STATIC); // make field dynamic
F[8]->set_maximum_growth(10); // max. 10 lines
F[8]->options_off(O_STATIC); // make field dynamic
}
~TestForm() {
delete mft;
delete ift;
delete eft;
}
};
char* TestForm::weekdays[] = {
"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday",
"Friday", "Saturday", (char *)0 };
//
// -------------------------------------------------------------------------
//
class FormAction : public NCursesMenuItem
{
public:
FormAction(const char *s) : NCursesMenuItem(s) {
}
bool action() {
TestForm F;
Soft_Label_Key_Set* S = new Soft_Label_Key_Set;
for(int i=1; i <= S->labels(); i++) {
char buf[5];
::sprintf(buf,"Frm%02d",i);
(*S)[i] = buf; // Text
(*S)[i] = Soft_Label_Key_Set::Soft_Label_Key::Left; // Justification
}
NCursesApplication::getApplication()->push(*S);
F();
NCursesApplication::getApplication()->pop();
return FALSE;
}
};
//
// -------------------------------------------------------------------------
//
class PadAction : public NCursesMenuItem
{
public:
PadAction(const char* s) : NCursesMenuItem(s) {
}
bool action() {
const int GRIDSIZE = 3;
const int PADSIZE = 200;
unsigned gridcount = 0;
NCursesPanel std;
NCursesPanel P(std.lines()-2,std.cols()-2,1,1);
NCursesFramedPad FP(P,PADSIZE,PADSIZE);
for (int i=0; i < PADSIZE; i++) {
for (int j=0; j < PADSIZE; j++) {
if (i % GRIDSIZE == 0 && j % GRIDSIZE == 0) {
if (i==0 || j==0)
FP.addch('+');
else
FP.addch((chtype)('A' + (gridcount++ % 26)));
}
else if (i % GRIDSIZE == 0)
FP.addch('-');
else if (j % GRIDSIZE == 0)
FP.addch('|');
else
FP.addch(' ');
}
}
P.label("Pad Demo",NULL);
FP();
P.clear();
return FALSE;
}
};
//
// -------------------------------------------------------------------------
//
class PassiveItem : public NCursesMenuItem {
public:
PassiveItem(const char* text) : NCursesMenuItem(text) {
options_off(O_SELECTABLE);
}
};
//
// -------------------------------------------------------------------------
//
class ScanAction : public NCursesMenuItem
{
public:
ScanAction(const char* s) : NCursesMenuItem(s) {
}
bool action() {
NCursesPanel *std = new NCursesPanel();
NCursesPanel *w = new NCursesPanel(std->lines() - 2, std->cols() - 2, 1, 1);
w->box();
w->refresh();
NCursesPanel *s = new NCursesPanel(w->lines() - 6, w->cols() - 6, 3, 3);
s->scrollok(TRUE);
::echo();
s->printw("Enter decimal integers. The running total will be shown\n");
int value = -1;
int result = 0;
while (value != 0) {
value = 0;
s->scanw("%d", &value);
if (value != 0) {
s->printw("%d: ", result += value);
}
s->refresh();
}
s->printw("\nPress any key to continue...");
s->getch();
delete s;
delete w;
delete std;
::noecho();
return FALSE;
}
};
//
// -------------------------------------------------------------------------
//
class MyMenu : public NCursesMenu
{
private:
NCursesPanel* P;
NCursesMenuItem** I;
UserData *u;
#define n_items 7
public:
MyMenu ()
: NCursesMenu (n_items+2, 8, (lines()-10)/2, (cols()-10)/2)
{
u = new UserData(1);
I = new NCursesMenuItem*[1+n_items];
I[0] = new PassiveItem("One");
I[1] = new PassiveItem("Two");
I[2] = new MyAction<UserData> ("Silly", u);
I[3] = new FormAction("Form");
I[4] = new PadAction("Pad");
I[5] = new ScanAction("Scan");
I[6] = new QuitItem();
I[7] = new NCursesMenuItem(); // Terminating empty item
InitMenu(I,TRUE,TRUE);
P = new NCursesPanel(1,n_items,LINES-1,1);
boldframe("Demo","Silly");
P->show();
}
~MyMenu()
{
P->hide();
delete P;
delete u;
}
virtual void On_Menu_Init()
{
NCursesWindow W(::stdscr);
P->move(0,0);
P->clrtoeol();
for(int i=1; i<=count(); i++)
P->addch('0' + i);
P->bkgd(W.getbkgd());
refresh();
}
virtual void On_Menu_Termination()
{
P->move(0,0);
P->clrtoeol();
refresh();
}
virtual void On_Item_Init(NCursesMenuItem& item)
{
P->move(0,item.index());
P->attron(A_REVERSE);
P->printw("%1d",1+item.index());
P->attroff(A_REVERSE);
refresh();
}
virtual void On_Item_Termination(NCursesMenuItem& item)
{
P->move(0,item.index());
P->attroff(A_REVERSE);
P->printw("%1d",1+item.index());
refresh();
}
};
//
// -------------------------------------------------------------------------
//
class TestApplication : public NCursesApplication {
protected:
int titlesize() const { return 1; }
void title();
Soft_Label_Key_Set::Label_Layout useSLKs() const {
return Soft_Label_Key_Set::PC_Style_With_Index;
}
void init_labels(Soft_Label_Key_Set& S) const;
public:
TestApplication() : NCursesApplication(TRUE) {
}
int run();
};
void TestApplication::init_labels(Soft_Label_Key_Set& S) const {
for(int i=1; i <= S.labels(); i++) {
char buf[5];
::sprintf(buf,"Key%02d",i);
S[i] = buf; // Text
S[i] = Soft_Label_Key_Set::Soft_Label_Key::Left; // Justification
}
}
void TestApplication::title() {
const char * const title = "Simple C++ Binding Demo";
const int len = ::strlen(title);
titleWindow->bkgd(screen_titles());
titleWindow->addstr(0,(titleWindow->cols()-len)/2,title);
titleWindow->noutrefresh();
}
int TestApplication::run() {
MyMenu M;
M();
return 0;
}
//
// -------------------------------------------------------------------------
//
static TestApplication Demo;