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// FbRun.hh
// Copyright (c) 2002 Henrik Kinnunen (fluxgen@linuxmail.org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
// $Id: FbRun.cc,v 1.1 2002/08/20 02:04:34 fluxgen Exp $
#include "FbRun.hh"
#include <X11/Xlib.h>
#include <X11/keysym.h>
#include <X11/Xutil.h>
#include <unistd.h>
#include <iostream>
using namespace std;
FbRun::FbRun(Display *disp, int x, int y, size_t width):
m_font(disp, "fixed"),
m_win(None),
m_display(disp),
m_bevel(4),
m_gc(None),
m_end(false) {
createWindow(x, y, width, m_font.height() + m_bevel);
// create GC
XGCValues gcv;
if (m_font.fontStruct())
gcv.font = m_font.fontStruct()->fid;
m_gc = XCreateGC(m_display, m_win, GCFont, &gcv);
}
FbRun::~FbRun() {
hide();
XDestroyWindow(m_display, m_win);
}
void FbRun::run(const std::string &command) {
//fork and execute program
if (!fork()) {
setsid();
execl("/bin/sh", "/bin/sh", "-c", command.c_str(), 0);
exit(0); //exit fork
}
hide();
m_end = true; // mark end of processing
}
bool FbRun::loadFont(const string &fontname) {
if (!m_font.load(fontname.c_str()))
return false;
// reconfigure m_gc for the new font
XGCValues gcv;
if (m_font.fontStruct())
gcv.font = m_font.fontStruct()->fid;
XChangeGC(m_display, m_gc, GCFont, &gcv);
// resize to fit new font height
resize(m_width, m_font.height() + m_bevel);
return true;
}
void FbRun::setForeground(const XColor &color) {
XSetForeground(m_display, m_gc, color.pixel);
redrawLabel();
}
void FbRun::setBackground(const XColor &color) {
XSetWindowBackground(m_display, m_win, color.pixel);
redrawLabel();
}
void FbRun::setText(const string &text) {
m_runtext = text;
redrawLabel();
}
void FbRun::setTitle(const string &title) {
assert(m_win);
XStoreName(m_display, m_win, const_cast<char *>(title.c_str()));
}
void FbRun::move(int x, int y) {
XMoveWindow(m_display, m_win, x, y);
}
void FbRun::resize(size_t width, size_t height) {
assert(m_win);
XResizeWindow(m_display, m_win, width, height + m_bevel);
m_width = width;
m_height = height + m_bevel;
setNoMaximize();
}
void FbRun::show() {
assert(m_win);
XMapWindow(m_display, m_win);
}
void FbRun::hide() {
assert(m_win);
XUnmapWindow(m_display, m_win);
}
void FbRun::redrawLabel() {
assert(m_win);
XClearWindow(m_display, m_win);
drawString(0, m_height - m_bevel/2,
m_runtext.c_str(), m_runtext.size());
}
void FbRun::drawString(int x, int y,
const char *text, size_t len) {
assert(m_win);
assert(m_gc);
if (FbTk::Font::multibyte()) {
XmbDrawString(m_display, m_win, m_font.fontSet(),
m_gc, x, y,
text, len);
} else {
XDrawString(m_display, m_win,
m_gc, x, y,
text, len);
}
}
void FbRun::createWindow(int x, int y, size_t width, size_t height) {
m_win = XCreateSimpleWindow(m_display, // display
DefaultRootWindow(m_display), // parent windows
x, y,
width, height,
1, // border_width
0, // border
WhitePixel(m_display, DefaultScreen(m_display))); // background
if (m_win == None)
throw string("Failed to create FbRun window!");
XSelectInput(m_display, m_win, KeyPressMask|ExposureMask);
setNoMaximize();
m_width = width;
m_height = height;
}
void FbRun::handleEvent(XEvent * const xev) {
switch (xev->type) {
case KeyPress: {
KeySym ks;
char keychar[1];
XLookupString(&xev->xkey, keychar, 1, &ks, 0);
if (ks == XK_Escape) {
m_end = true;
hide();
return; // no more processing
} else if (ks == XK_Return) {
run(m_runtext);
m_runtext = ""; // clear text
} else if (ks == XK_BackSpace && m_runtext.size() != 0) {
m_runtext.erase(m_runtext.size()-1);
redrawLabel();
} else if (! IsModifierKey(ks) && !IsCursorKey(ks)) {
m_runtext+=keychar[0]; // append character
redrawLabel();
}
} break;
case Expose:
redrawLabel();
break;
default:
break;
}
}
void FbRun::getSize(size_t &width, size_t &height) {
XWindowAttributes attr;
XGetWindowAttributes(m_display, m_win, &attr);
width = attr.width;
height = attr.height;
}
void FbRun::setNoMaximize() {
size_t width, height;
getSize(width, height);
// we don't need to maximize this window
XSizeHints sh;
sh.flags = PMaxSize | PMinSize;
sh.max_width = width;
sh.max_height = height;
sh.min_width = width;
sh.min_height = height;
XSetWMNormalHints(m_display, m_win, &sh);
}
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