for round corners

1 files changed, 184 insertions, 0 deletions

diff --git a/src/Shape.cc b/src/Shape.cc
new file mode 100644
index 0000000..c176e78
--- /dev/null
+++ b/src/Shape.cc
@@ -0,0 +1,184 @@
+// Shape.cc
+// Copyright (c) 2003 Henrik Kinnunen (fluxgen(at)users.sourceforge.net)
+// 
+// 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: Shape.cc,v 1.1 2003/07/10 12:04:46 fluxgen Exp $
+
+#include "Shape.hh"
+#include "FbWindow.hh"
+#include "App.hh"
+
+#include <cstring>
+
+#ifdef SHAPE
+#include <X11/extensions/shape.h>
+#endif // SHAPE
+
+#include <iostream>
+#include <algorithm>
+using namespace std;
+
+namespace {
+
+Pixmap createShape(FbTk::FbWindow &win, int place) {
+    if (win.window() == 0 || place == 0 || 
+        win.width() < 3 || win.height() < 3)
+        return 0;
+    
+    static char left_bits[] = { 0xc0, 0xf8, 0xfc, 0xfe, 0xfe, 0xfe, 0xff, 0xff };
+    static char right_bits[] = { 0x03, 0x1f, 0x3f, 0x7f, 0x7f, 0x7f, 0xff, 0xff};
+    static char bottom_left_bits[] = { 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xfc, 0xf8, 0xc0 };
+    static char bottom_right_bits[] = { 0xff, 0xff, 0x7f, 0x7f, 0x7f, 0x3f, 0x1f, 0x03 };
+
+    const int win_width = win.width() + 2*win.borderWidth();
+    const int win_height = win.height() + 2*win.borderWidth();
+    const int pixmap_width = min(8, win_width);
+    const int pixmap_height = min(8, win_height);
+
+    Display *disp = FbTk::App::instance()->display();
+    const size_t data_size = win_width * win_height;
+    char *data = new char[data_size];
+    memset(data, 0xFF, data_size);
+    
+    XImage *ximage = XCreateImage(disp,
+                                  DefaultVisual(disp, DefaultScreen(disp)),
+                                  1,
+                                  XYPixmap, 0,
+                                  data,
+                                  win_width, win_height,
+                                  32, 0);
+    if (ximage == 0)
+        return 0;
+
+    XInitImage(ximage);
+
+    // shape corners
+
+    if (place & Shape::TOPLEFT) {
+        for (int y=0; y<pixmap_height; y++) {
+            for (int x=0; x<pixmap_width; x++) {
+                XPutPixel(ximage, x + 1, y, (left_bits[y] & (0x01 << x)) ? 1 : 0);
+            }
+        }
+    }
+    
+    if (place & Shape::TOPRIGHT) {
+        for (int y=0; y<pixmap_height; y++) {
+            for (int x=0; x<pixmap_width; x++) {
+                XPutPixel(ximage, x + win_width - pixmap_width, y, 
+                          (right_bits[y] & (0x01 << x)) ? 1 : 0);
+            }     
+        }
+    }
+    
+    if (place & Shape::BOTTOMLEFT) {
+        for (int y=0; y<pixmap_height; y++) {
+            for (int x=0; x<pixmap_width; x++) {
+                XPutPixel(ximage, x + 1, y + win_height - pixmap_height, 
+                          (bottom_left_bits[y] & (0x01 << x)) ? 1 : 0);
+            }
+        }
+    }
+
+    if (place & Shape::BOTTOMRIGHT) {
+        for (int y=0; y<pixmap_height; y++) {
+            for (int x=0; x<pixmap_width; x++) {
+                XPutPixel(ximage, x + win_width - pixmap_width, y + win_height - pixmap_height,
+                          (bottom_right_bits[y] & (0x01 << x)) ? 1 : 0);
+            }
+        }
+    }
+
+    for (int y = 0; y<pixmap_height; ++y) {
+        XPutPixel(ximage, 0, y, 1);
+    }
+
+    XGCValues values;
+    values.foreground = 1;
+    values.background = 0;
+    Pixmap pm = XCreatePixmap(disp, win.window(), win_width, win_height, 1);
+    GC gc = XCreateGC(disp, pm,
+                      GCForeground | GCBackground, &values);
+
+        
+    XPutImage(disp, pm, gc, ximage, 0, 0, 0, 0,
+              win_width, win_height);
+
+    XFreeGC(disp, gc);
+    XDestroyImage(ximage);
+
+    return pm;
+
+
+}
+
+}; // end anonymous namespace
+
+Shape::Shape(FbTk::FbWindow &win, int shapeplaces):
+    m_win(&win),
+    m_shapeplaces(shapeplaces) {
+
+    m_shape = createShape(win, shapeplaces);
+    m_width = win.width();
+    m_height = win.height();
+
+}
+
+Shape::~Shape() {
+    if (m_shape != 0)
+        XFreePixmap(FbTk::App::instance()->display(), m_shape);
+}
+
+void Shape::setPlaces(int shapeplaces) {
+    m_shapeplaces = shapeplaces;
+}
+
+void Shape::update() {
+    if (m_win == 0 || m_win->window() == 0)
+        return;
+#ifdef SHAPE
+    if (m_win->width() != m_width ||
+        m_win->height() != m_height) {
+        if (m_shape != 0)
+            XFreePixmap(FbTk::App::instance()->display(), m_shape);
+        m_shape = createShape(*m_win, m_shapeplaces);
+        m_width = m_win->width();
+        m_height = m_win->height();
+
+    }
+
+    if (m_shape == 0)
+        return;
+
+    XShapeCombineMask(FbTk::App::instance()->display(),
+                      m_win->window(),
+                      ShapeBounding,
+                      -1, 0,
+                      m_shape,
+                      ShapeSet);
+
+#endif // SHAPE
+
+}
+
+void Shape::setWindow(FbTk::FbWindow &win) {
+    m_win = &win;
+    update();
+}