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///////////////////////////////////////////////////////////////////////////////
// $Id: PushButton.cxx,v 1.2 1996/01/06 05:09:40 bwmott Exp $
///////////////////////////////////////////////////////////////////////////////
//
// PushButton.hxx - Push button widget
//
//
// Bradford W. Mott
// Copyright (C) 1994
// December 12,1994
//
///////////////////////////////////////////////////////////////////////////////
// $Log: PushButton.cxx,v $
// Revision 1.2 1996/01/06 05:09:40 bwmott
// Changed all NULLs to 0
//
// Revision 1.1 1995/01/08 06:51:20 bmott
// Initial revision
//
///////////////////////////////////////////////////////////////////////////////
#include "PushButton.hxx"
#include "UIApplication.hxx"
#include "ContainerWidget.hxx"
#include "misc.hxx"
///////////////////////////////////////////////////////////////////////////////
// Constructor
///////////////////////////////////////////////////////////////////////////////
PushButton::PushButton(ContainerWidget *const parent,
const char *const widgetName,
int x, int y, int width, int height,
const char* label, Command* pushCommand)
: BasicWidget(parent, widgetName, x, y, width, height),
myLabel(label),
myCommand(pushCommand)
{
// Create window for widget
myWindow = XCreateSimpleWindow(application->display(), myParent->window(),
x, y, width, height,
0, 0, 0);
// PushButtons have to respond to several event types
XSelectInput(application->display(), myWindow,
ButtonPressMask | ExposureMask | EnterWindowMask |
LeaveWindowMask | ButtonReleaseMask );
}
///////////////////////////////////////////////////////////////////////////////
// Destructor
///////////////////////////////////////////////////////////////////////////////
PushButton::~PushButton()
{
// Delete my command
delete myCommand;
}
///////////////////////////////////////////////////////////////////////////////
// Update the graphical view of the push button
///////////////////////////////////////////////////////////////////////////////
void PushButton::updateView()
{
// Setup GC and Font
XFontStruct* fontInfo = application->font();
XGCValues gcValues;
gcValues.foreground = foreground();
gcValues.background = background();
gcValues.font = fontInfo->fid;
GC gc = XCreateGC(application->display(), myWindow,
GCForeground | GCBackground | GCFont, &gcValues);
Draw3DBorder(this, 3, Raised);
// Center label in widget
int x = (width() - XTextWidth(fontInfo, myLabel, strlen(myLabel)) ) / 2;
int y = height()/2 - ((fontInfo->ascent+fontInfo->descent)/2) + fontInfo->ascent;
XDrawString(application->display(), myWindow, gc,
x, y, myLabel, strlen(myLabel));
// Free the GC
XFreeGC(application->display(), gc);
}
///////////////////////////////////////////////////////////////////////////////
// Called whenever an event arrives for me (I override the default)
///////////////////////////////////////////////////////////////////////////////
void PushButton::handleEvent(XEvent* event)
{
// Handle the event
if (event->type == Expose)
{
updateView();
}
else if ((event->type == ButtonPress) && (event->xbutton.button == Button1))
{
// Flag to tell if the button was really pressed
int pressed = 1;
// Push the button in
Draw3DBorder(this, 3, Sunken);
// Track the mouse until the button is released
int done = 0;
while(!done)
{
XEvent event;
XNextEvent(application->display(), &event);
switch(event.type)
{
case EnterNotify:
// Push the button in
Draw3DBorder(this, 3, Sunken);
pressed = 1;
break;
case LeaveNotify:
// Pop the button back out
Draw3DBorder(this, 3, Raised);
pressed = 0;
break;
case ButtonRelease:
// Pop the button back out
Draw3DBorder(this, 3, Raised);
done = 1;
break;
default:
break;
}
}
// Execute my command if the button was pressed
if(pressed)
{
myCommand->execute(0);
}
}
}
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