home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
CICA 1993 April
/
CICA MS Windows - April 1993.iso
/
unzipped
/
misc
/
iv26_w30
/
sources
/
banner.c
next >
Wrap
C/C++ Source or Header
|
1980-01-03
|
3KB
|
112 lines
/*
* Copyright (c) 1987, 1988, 1989 Stanford University
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Stanford not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Stanford makes no representations about
* the suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Banner implementation.
*/
#include <InterViews/banner.h>
#include <InterViews/font.h>
#include <InterViews/painter.h>
#include <InterViews/shape.h>
static const int pad = 2*pixels; /* space around banner text */
Banner::Banner (char* lt, char* m, char* rt) {
Init(lt, m, rt);
}
Banner::Banner (const char* name, char* lt, char* m, char* rt) {
SetInstance(name);
Init(lt, m, rt);
}
Banner::Banner (Painter* out, char* lt, char* m, char* rt) : (nil, out) {
Init(lt, m, rt);
Reconfig();
}
void Banner::Init (char* lt, char* m, char* rt) {
SetClassName("Banner");
left = lt;
middle = m;
right = rt;
highlight = false;
inverse = nil;
}
void Banner::Reconfig () {
int w;
Font* f = output->GetFont();
lw = left == nil ? 0 : f->Width(left);
mw = middle == nil ? 0 : f->Width(middle);
rw = right == nil ? 0 : f->Width(right);
if (mw > 0) {
w = mw + 2*max(lw, rw);
} else {
w = lw + rw;
}
shape->width = 2*pad + w + f->Width(" ");
shape->height = f->Height() + 2*pad;
shape->Rigid(0, hfil, 0, 0);
Unref(inverse);
inverse = new Painter(output);
inverse->Reference();
inverse->SetColors(output->GetBgColor(), output->GetFgColor());
}
Banner::~Banner () {
Unref(inverse);
}
void Banner::Redraw (Coord x1, Coord y1, Coord x2, Coord y2) {
Painter* p = highlight ? inverse : output;
p->ClearRect(canvas, x1, y1, x2, y2);
if (right != nil && rx <= x2) {
p->MoveTo(rx, pad);
p->Text(canvas, right);
}
if (middle != nil && mx + mw >= x1 && mx <= x2) {
p->MoveTo(mx, pad);
p->Text(canvas, middle);
}
if (left != nil && lx + lw >= x1) {
p->MoveTo(lx, pad);
p->Text(canvas, left);
}
}
void Banner::Resize () {
lx = pad;
mx = (xmax - mw) / 2;
rx = xmax - rw + 1 - pad;
}
void Banner::Update () {
if (canvas != nil) {
Reconfig();
Resize();
Draw();
}
}