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Diffstat (limited to 'plugingui/nativewindow_x11.cc')
| -rw-r--r-- | plugingui/nativewindow_x11.cc | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/plugingui/nativewindow_x11.cc b/plugingui/nativewindow_x11.cc new file mode 100644 index 0000000..91d7ed6 --- /dev/null +++ b/plugingui/nativewindow_x11.cc @@ -0,0 +1,233 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * nativewindow_x11.cc + * + * Fri Dec 28 18:45:57 CET 2012 + * Copyright 2012 Bent Bisballe Nyeng + * deva@aasimon.org + ****************************************************************************/ + +/* + * This file is part of DrumGizmo. + * + * DrumGizmo is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * DrumGizmo is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with DrumGizmo; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#include "nativewindow_x11.h" + +#ifdef X11 +#include <X11/Xutil.h> +#include <stdlib.h> + +#include "window.h" + +GUI::NativeWindowX11::NativeWindowX11(GlobalContext *gctx, GUI::Window *window) + : GUI::NativeWindow(gctx) +{ + this->window = window; + buffer = NULL; + + // Get some colors + int blackColor = BlackPixel(gctx->display, DefaultScreen(gctx->display)); + + ::Window w = DefaultRootWindow(gctx->display); + + // Create the window + xwindow = XCreateSimpleWindow(gctx->display, + w, + window->x(), window->y(), + window->width(), window->height(), + 0, + blackColor, blackColor); + + XSelectInput(gctx->display, xwindow, + StructureNotifyMask | + PointerMotionMask | + ButtonPressMask | + ButtonReleaseMask | + KeyPressMask | + KeyReleaseMask| + ExposureMask | + StructureNotifyMask | + SubstructureNotifyMask); + + // register interest in the delete window message + gctx->wmDeleteMessage = XInternAtom(gctx->display, "WM_DELETE_WINDOW", false); + XSetWMProtocols(gctx->display, xwindow, &gctx->wmDeleteMessage, 1); + + // "Map" the window (that is, make it appear on the screen) + XMapWindow(gctx->display, xwindow); + + // Create a "Graphics Context" + gc = XCreateGC(gctx->display, xwindow, 0, NULL); +} + +GUI::NativeWindowX11::~NativeWindowX11() +{ + XDestroyWindow(gctx->display, xwindow); + //gctx->widgets.erase(window); +} + +void GUI::NativeWindowX11::resize(int width, int height) +{ + XResizeWindow(gctx->display, xwindow, width, height); +} + +void GUI::NativeWindowX11::move(int x, int y) +{ + XMoveWindow(gctx->display, xwindow, x, y); +} + +void GUI::NativeWindowX11::show() +{ + XMapWindow(gctx->display, xwindow); +} + +void GUI::NativeWindowX11::hide() +{ + XUnmapWindow(gctx->display, xwindow); +} + +static int get_byte_order (void) +{ + union { + char c[sizeof(short)]; + short s; + } order; + + order.s = 1; + if ((1 == order.c[0])) { + return LSBFirst; + } else { + return MSBFirst; + } +} + +static XImage *create_image_from_buffer(Display *dis, int screen, + unsigned char *buf, + int width, int height) +{ + int depth; + XImage *img = NULL; + Visual *vis; + double rRatio; + double gRatio; + double bRatio; + int outIndex = 0; + int i; + int numBufBytes = (3 * (width * height)); + + depth = DefaultDepth(dis, screen); + vis = DefaultVisual(dis, screen); + + rRatio = vis->red_mask / 255.0; + gRatio = vis->green_mask / 255.0; + bRatio = vis->blue_mask / 255.0; + + if (depth >= 24) { + size_t numNewBufBytes = (4 * (width * height)); + u_int32_t *newBuf = (u_int32_t *)malloc (numNewBufBytes); + + for (i = 0; i < numBufBytes; ++i) { + unsigned int r, g, b; + r = (buf[i] * rRatio); + ++i; + g = (buf[i] * gRatio); + ++i; + b = (buf[i] * bRatio); + + r &= vis->red_mask; + g &= vis->green_mask; + b &= vis->blue_mask; + + newBuf[outIndex] = r | g | b; + ++outIndex; + } + + img = XCreateImage (dis, + CopyFromParent, depth, + ZPixmap, 0, + (char *) newBuf, + width, height, + 32, 0 + ); + + } else if (depth >= 15) { + size_t numNewBufBytes = (2 * (width * height)); + u_int16_t *newBuf = (u_int16_t *)malloc (numNewBufBytes); + + for (i = 0; i < numBufBytes; ++i) { + unsigned int r, g, b; + + r = (buf[i] * rRatio); + ++i; + g = (buf[i] * gRatio); + ++i; + b = (buf[i] * bRatio); + + r &= vis->red_mask; + g &= vis->green_mask; + b &= vis->blue_mask; + + newBuf[outIndex] = r | g | b; + ++outIndex; + } + + img = XCreateImage(dis, CopyFromParent, depth, ZPixmap, 0, (char *) newBuf, + width, height, 16, 0); + } else { + //fprintf (stderr, "This program does not support displays with a depth less than 15."); + return NULL; + } + + XInitImage (img); + /*Set the client's byte order, so that XPutImage knows what to do with the data.*/ + /*The default in a new X image is the server's format, which may not be what we want.*/ + if ((LSBFirst == get_byte_order ())) { + img->byte_order = LSBFirst; + } else { + img->byte_order = MSBFirst; + } + + /*The bitmap_bit_order doesn't matter with ZPixmap images.*/ + img->bitmap_bit_order = MSBFirst; + + return img; +} + +void GUI::NativeWindowX11::handleBuffer() +{ + if(buffer) XDestroyImage(buffer); + buffer = + create_image_from_buffer(gctx->display, DefaultScreen(gctx->display), + window->wpixbuf.buf, + window->wpixbuf.width, + window->wpixbuf.height); +} + +void GUI::NativeWindowX11::redraw() +{ + // http://stackoverflow.com/questions/6384987/load-image-onto-a-window-using-xlib + if(buffer == NULL) window->updateBuffer(); + XPutImage(gctx->display, xwindow, gc, buffer, 0, 0, 0, 0, + window->width(), window->height()); + XFlush(gctx->display); +} + +void GUI::NativeWindowX11::setCaption(const std::string &caption) +{ +} + +#endif/*X11*/ + |