365 lines
12 KiB
C++
365 lines
12 KiB
C++
// Shape.cc
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// Copyright (c) 2003 - 2006 Henrik Kinnunen (fluxgen at fluxbox dot org)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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// $Id$
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#include "Shape.hh"
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#include "FbTk/FbWindow.hh"
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#include "FbTk/App.hh"
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#include "FbTk/GContext.hh"
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#include "FbTk/FbPixmap.hh"
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif // HAVE_CONFIG_H
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#ifdef HAVE_CSTRING
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#include <cstring>
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#else
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#include <string.h>
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#endif
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#include <X11/Xutil.h>
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#ifdef SHAPE
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#include <X11/extensions/shape.h>
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#endif // SHAPE
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#include <algorithm>
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using std::min;
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namespace {
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/* rows is an array of 8 bytes, i.e. 8x8 bits */
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Pixmap makePixmap(FbTk::FbWindow &drawable, const unsigned char rows[]) {
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Display *disp = FbTk::App::instance()->display();
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const size_t data_size = 8 * 8;
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// we use calloc here so we get consistent C alloc/free with XDestroyImage
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// and no warnings in valgrind :)
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char *data = (char *)calloc(data_size, sizeof (char));
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if (data == 0)
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return 0;
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memset(data, 0xFF, data_size);
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XImage *ximage = XCreateImage(disp,
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DefaultVisual(disp, drawable.screenNumber()),
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1,
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XYPixmap, 0,
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data,
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8, 8,
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32, 0);
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if (ximage == 0)
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return 0;
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XInitImage(ximage);
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for (int y=0; y<8; y++) {
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for (int x=0; x<8; x++) {
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XPutPixel(ximage, x, y, (rows[y] & (0x01 << x)) ? 0 : 1); // inverted, it is subtracted
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}
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}
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FbTk::FbPixmap pm(drawable, 8, 8, 1);
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FbTk::GContext gc(pm);
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XPutImage(disp, pm.drawable(), gc.gc(), ximage, 0, 0, 0, 0,
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8, 8);
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XDestroyImage(ximage);
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return pm.release();
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}
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};
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std::vector<Shape::CornerPixmaps> Shape::s_corners;
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Shape::Shape(FbTk::FbWindow &win, int shapeplaces):
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m_win(&win),
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m_shapesource(0),
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m_shapesource_xoff(0),
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m_shapesource_yoff(0),
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m_shapeplaces(shapeplaces) {
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#ifdef SHAPE
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initCorners(win.screenNumber());
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#endif
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update();
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}
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Shape::~Shape() {
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#ifdef SHAPE
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if (m_win != 0 && m_win->window()) {
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// Reset shape of window
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XShapeCombineMask(FbTk::App::instance()->display(),
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m_win->window(),
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ShapeClip,
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0, 0,
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0,
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ShapeSet);
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XShapeCombineMask(FbTk::App::instance()->display(),
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m_win->window(),
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ShapeBounding,
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0, 0,
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0,
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ShapeSet);
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}
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#endif // SHAPE
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}
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void Shape::initCorners(int screen_num) {
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if (s_corners.size() == 0)
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s_corners.resize(ScreenCount(FbTk::App::instance()->display()));
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static const unsigned char left_bits[] = { 0xc0, 0xf8, 0xfc, 0xfe, 0xfe, 0xfe, 0xff, 0xff };
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static const unsigned char right_bits[] = { 0x03, 0x1f, 0x3f, 0x7f, 0x7f, 0x7f, 0xff, 0xff};
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static const unsigned char bottom_left_bits[] = { 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xfc, 0xf8, 0xc0 };
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static const unsigned char bottom_right_bits[] = { 0xff, 0xff, 0x7f, 0x7f, 0x7f, 0x3f, 0x1f, 0x03 };
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s_corners[screen_num].topleft = ::makePixmap(*m_win, left_bits);
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s_corners[screen_num].topright = ::makePixmap(*m_win, right_bits);
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s_corners[screen_num].botleft = ::makePixmap(*m_win, bottom_left_bits);
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s_corners[screen_num].botright = ::makePixmap(*m_win, bottom_right_bits);
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}
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void Shape::setPlaces(int shapeplaces) {
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m_shapeplaces = shapeplaces;
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}
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void Shape::update() {
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if (m_win == 0 || m_win->window() == 0)
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return;
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#ifdef SHAPE
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/**
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* Set the client's shape in position,
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* or wipe the shape and return.
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*/
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Display *display = FbTk::App::instance()->display();
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int bw = m_win->borderWidth();
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int width = m_win->width();
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int height = m_win->height();
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if (m_shapesource == 0 && m_shapeplaces == 0) {
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/* clear the shape and return */
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XShapeCombineMask(display,
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m_win->window(), ShapeClip,
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0, 0,
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None, ShapeSet);
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XShapeCombineMask(display,
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m_win->window(), ShapeBounding,
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0, 0,
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None, ShapeSet);
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return;
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}
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XRectangle rect;
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rect.x = 0;
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rect.y = 0;
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rect.width = width;
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rect.height = height;
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XShapeCombineRectangles(display,
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m_win->window(), ShapeClip,
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0, 0, /* offsets */
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&rect,
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1, /* number of rectangles */
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ShapeSet, /* op */
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2 /* ordering: YXSorted... only 1: doesn't matter */ );
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rect.x = -bw;
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rect.y = -bw;
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rect.width = width+2*bw;
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rect.height = height+2*bw;
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XShapeCombineRectangles(display,
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m_win->window(), ShapeBounding,
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0, 0, /* offsets */
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&rect,
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1, /* number of rectangles */
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ShapeSet, /* op */
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2 /* ordering: YXSorted... only 1: doesn't matter */ );
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if (m_shapesource != 0) {
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/*
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Copy the shape from the source.
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We achieve this by subtracting the client-area size from the shape, and then
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unioning in the client's mask.
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*/
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rect.x = m_shapesource_xoff;
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rect.y = m_shapesource_yoff;
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rect.width = m_shapesource->width();
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rect.height = m_shapesource->height();
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XShapeCombineRectangles(display,
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m_win->window(), ShapeClip,
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0, 0, /* offsets */
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&rect,
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1, /* number of rectangles */
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ShapeSubtract, /* op */
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2 /* ordering: YXSorted... only 1: doesn't matter */ );
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XShapeCombineShape(display,
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m_win->window(), ShapeClip,
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rect.x, rect.y, // xOff, yOff
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m_shapesource->window(),
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ShapeClip, ShapeUnion);
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/*
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Now the bounding rectangle. Note that the frame has a shared border with the region above the
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client (i.e. titlebar), so we don't want to wipe the shared border, hence the adjustments.
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*/
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rect.x = m_shapesource_xoff; // note that the full bounding region is already offset by a -borderwidth!
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rect.y = m_shapesource_yoff;
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rect.width = m_shapesource->width(); // we don't wipe the outer bounding region [i think]
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rect.height = m_shapesource->height();
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// we want to delete the client area, dont care about borders really
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XShapeCombineRectangles(display,
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m_win->window(), ShapeBounding,
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0, 0, /* offsets */
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&rect,
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1, /* number of rectangles */
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ShapeSubtract, /* op */
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2 /* ordering: YXSorted... only 1: doesn't matter */ );
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XShapeCombineShape(display,
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m_win->window(), ShapeBounding,
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rect.x , rect.y, // xOff, yOff
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m_shapesource->window(),
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ShapeBounding, ShapeUnion);
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}
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CornerPixmaps &corners = s_corners[m_win->screenNumber()];
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#define SHAPECORNER(corner, x, y, shapekind) \
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XShapeCombineMask(FbTk::App::instance()->display(), \
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m_win->window(), \
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shapekind, \
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x, y, \
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corners.corner.drawable(), \
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ShapeSubtract);
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/**
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* Set the top corners if the y offset is nonzero.
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*/
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if (m_shapesource == 0 || m_shapesource_yoff != 0) {
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if (m_shapeplaces & TOPLEFT) {
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SHAPECORNER(topleft, 0, 0, ShapeClip);
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SHAPECORNER(topleft, -bw, -bw, ShapeBounding);
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}
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if (m_shapeplaces & TOPRIGHT) {
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SHAPECORNER(topright, width-8, 0, ShapeClip);
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SHAPECORNER(topright, width+bw-8, -bw, ShapeBounding);
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}
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}
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// note that the bottom corners y-vals are offset by 8 (the height of the corner pixmaps)
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if (m_shapesource == 0 || (m_shapesource_yoff+(signed) m_shapesource->height()) < height
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|| m_shapesource_yoff >= height /* shaded */) {
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if (m_shapeplaces & BOTTOMLEFT) {
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SHAPECORNER(botleft, 0, height-8, ShapeClip);
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SHAPECORNER(botleft, -bw, height+bw-8, ShapeBounding);
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}
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if (m_shapeplaces & BOTTOMRIGHT) {
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SHAPECORNER(botright, width-8, height-8, ShapeClip);
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SHAPECORNER(botright, width+bw-8, height+bw-8, ShapeBounding);
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}
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}
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#endif // SHAPE
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}
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void Shape::setWindow(FbTk::FbWindow &win) {
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m_win = &win;
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update();
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}
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/**
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* set the shape source to the given window.
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* This is purely for client windows at the moment, where the offsets and height/width of the
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* target window and the source window are used to determine whether to shape a given corner.
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*
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* (note: xoffset will always be zero, and widths always match, so we ignore those)
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*
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* i.e. if the yoffset is not zero, then the top corners are shaped.
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* if the target height is bigger than the source plus yoffset, then the bottom corners are
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* shaped.
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*
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* If *either* the top or bottom corners are not shaped due to this, but a shape source window
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* is given, then the bounding shape has the borders alongside the source window deleted, otherwise
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* they are left hanging outside the client's shape.
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*/
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void Shape::setShapeSource(FbTk::FbWindow *win, int xoff, int yoff, bool always_update) {
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if (win != 0 && !isShaped(*win)) {
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win = 0;
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if (m_shapesource == 0 && !always_update)
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return;
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}
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// even if source is same, want to update the shape on it
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m_shapesource = win;
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m_shapesource_xoff = xoff;
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m_shapesource_yoff = yoff;
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update();
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}
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void Shape::setShapeOffsets(int xoff, int yoff) {
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m_shapesource_xoff = xoff;
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m_shapesource_yoff = yoff;
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update();
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}
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void Shape::setShapeNotify(const FbTk::FbWindow &win) {
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#ifdef SHAPE
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XShapeSelectInput(FbTk::App::instance()->display(),
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win.window(), ShapeNotifyMask);
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#endif // SHAPE
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}
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bool Shape::isShaped(const FbTk::FbWindow &win) {
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int shaped = 0;
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#ifdef SHAPE
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int not_used;
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unsigned int not_used2;
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XShapeQueryExtents(FbTk::App::instance()->display(),
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win.window(),
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&shaped, /// bShaped
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¬_used, ¬_used, // xbs, ybs
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¬_used2, ¬_used2, // wbs, hbs
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¬_used, // cShaped
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¬_used, ¬_used, // xcs, ycs
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¬_used2, ¬_used2); // wcs, hcs
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#endif // SHAPE
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return (shaped != 0 ? true : false);
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}
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