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/* $Id: Overlay.cpp,v 1.10 2007/01/07 05:00:56 whot Exp $ */
/*--
--*/
#include "Overlay.h"
#include <stdlib.h>
#include <string.h>
Overlay::Overlay(Manager* manager, WMWindow* client, XConn* x11)
{
this->client = client;
this->manager = manager;
this->x11 = x11;
this->width = client->width;
this->height = client->height;
layers.clear();
initWindows();
}
Overlay::~Overlay()
{
map<int, OverlayLayer*>::iterator it = layers.begin();
while(it != layers.end())
{
delete it->second;
it++;
}
}
void Overlay::initWindows()
{
vector<PointerDevice*>* pointers = manager->getPointers();
vector<PointerDevice*>::iterator it = pointers->begin();
TRACE("creating with height %d\n", height);
while(it != pointers->end())
{
OverlayLayer* layer = new OverlayLayer;
layer->gcvals.line_width = Config::getInstance()->drawLineWidth;
layer->gcvals.line_style = LineSolid;
layer->gcvals.foreground = 0;
layer->dev = *it;
layer->win = XCreateSimpleWindow(x11->dpy, client->container, 0,
Config::getInstance()->windowBarHeight, width, height, 0,
CopyFromParent, layer->dev->getColor());
layer->mask = XCreatePixmap(x11->dpy, client->container, width,
height, 1);
layer->canvas = XCreateGC(x11->dpy, layer->mask,
GCForeground | GCLineWidth | GCLineStyle, &layer->gcvals);
layer->lastX = layer->lastY = 0;
layer->visible = false;
XFillRectangle(x11->dpy, layer->mask, layer->canvas, 0, 0, width, height);
XSetForeground(x11->dpy, layer->canvas, 1);
XShapeCombineMask(x11->dpy, layer->win,
ShapeBounding, 0, 0,
layer->mask, ShapeSet);
layers[layer->dev->getID()] = layer;
it++;
}
XFlush(x11->dpy);
}
/*
toggle the layer state of the given layer.
*/
void Overlay::toggle(int id)
{
if (!layers[id]->visible)
{
TRACE("Overlay on\n");
XMapRaised(x11->dpy, layers[id]->win);
layers[id]->visible = !layers[id]->visible;
} else
{
TRACE("Overlay off\n");
XUnmapWindow(x11->dpy, layers[id]->win);
layers[id]->visible = !layers[id]->visible;
}
}
/*
Returns true if the layer for the given device ID is visible.
*/
bool Overlay::isVisible(int deviceID)
{
return layers[deviceID]->visible;
}
/*
returns true if any of the layers is activated
*/
bool Overlay::isVisible()
{
map<int, OverlayLayer*>::iterator it = layers.begin();
while(it != layers.end())
{
if (it->second->visible)
return true;
it++;
}
return false;
}
/*
Handles the given event.
This method returns true if the event was handled properly. If false is
returned, the event needs to be sent to the client.
*/
bool Overlay::handleMotionEvent(XDeviceMotionEvent* mev, PointerDevice* dev)
{
OverlayLayer* layer = layers[mev->deviceid];
if (!layer->visible)
return false;
if (!mev->device_state)
{
layer->lastX = mev->x;
layer->lastY = mev->y;
return true;
}
if (mev->device_state & Button1Mask)
{
if (!layer->gcvals.foreground)
{
layer->gcvals.foreground = 1;
layer->gcvals.line_width = Config::getInstance()->drawLineWidth;
XChangeGC(x11->dpy, layers[mev->deviceid]->canvas,
GCForeground | GCLineWidth, &layer->gcvals);
}
} else if (mev->device_state & Button3Mask)
{
if (layer->gcvals.foreground)
{
layer->gcvals.foreground = 0;
layer->gcvals.line_width = Config::getInstance()->eraseLineWidth;
XChangeGC(x11->dpy, layers[mev->deviceid]->canvas,
GCForeground | GCLineWidth, &layer->gcvals);
}
}
XDrawLine(x11->dpy, layer->mask, layer->canvas, layer->lastX, layer->lastY,
mev->x, mev->y);
layer->lastX = mev->x;
layer->lastY = mev->y;
XShapeCombineMask(x11->dpy, layer->win, ShapeBounding, 0, 0, layer->mask,
ShapeSet);
XFlush(x11->dpy);
TRACE("Line to %d/%d\n", layer->lastX, layer->lastY);
return true;
}
void Overlay::handlePressEvent(XDeviceButtonEvent* bev)
{
XGCValues gcvals;
if (bev->state & Button1Mask)
{
gcvals.line_width = 4;
gcvals.foreground = 1;
}
else if (bev->state & Button3Mask)
{
gcvals.line_width = 25;
gcvals.foreground = 0;
} else return;
XChangeGC(x11->dpy, layers[bev->deviceid]->canvas,
GCForeground | GCLineWidth, &gcvals);
XFlush(x11->dpy);
layers[bev->deviceid]->lastX = bev->x;
layers[bev->deviceid]->lastY = bev->y;
}
/*
returns true if either the drawing window or the input window
is the given window.
*/
bool Overlay::hasWindow(Window win)
{
map<int, OverlayLayer*>::iterator it = layers.begin();
while(it != layers.end())
{
if (it->second->win == win || it->second->mask == win)
return true;
it++;
}
return false;
}
/*
Resizes the overlay window. We need to first resize the input and the
drawing window, then create a new pixmap and copy the contents over.
Pixmaps cannot be resized.
*/
void Overlay::resize(int width, int height)
{
XWindowChanges wc;
wc.width = width;
wc.height = height;
map<int, OverlayLayer*>::iterator it = layers.begin();
XGCValues gcvals;
gcvals.line_width = 4;
gcvals.line_style = LineSolid;
gcvals.foreground = 0;
while (it != layers.end())
{
OverlayLayer* layer = it->second;
XConfigureWindow(x11->dpy, layer->win, CWWidth | CWHeight, &wc);
Pixmap newmask = XCreatePixmap(x11->dpy, layer->win, width, height + 30, 1);
GC newcanvas = XCreateGC(x11->dpy, newmask,
GCForeground | GCLineWidth | GCLineStyle, &gcvals);
XFillRectangle(x11->dpy, newmask, newcanvas, 0, 0, width, height);
XSetForeground(x11->dpy, newcanvas, 1);
XCopyArea(x11->dpy, layer->mask, newmask, newcanvas, 0, 0, this->width, this->height, 0, 0);
XFreePixmap(x11->dpy, layer->mask);
XFreeGC(x11->dpy, layer->canvas);
layer->mask = newmask;
layer->canvas = newcanvas;
it++;
}
XFlush(x11->dpy);
this->width = width;
this->height = height;
TRACE("Overlay resized to %d/%d\n", width, height);
}
void Overlay::clean(int id)
{
XSetForeground(x11->dpy, layers[id]->canvas, 0);
XFillRectangle(x11->dpy, layers[id]->mask, layers[id]->canvas, 0, 0, width, height);
XSetForeground(x11->dpy, layers[id]->canvas, 1);
XShapeCombineMask(x11->dpy, layers[id]->win, ShapeBounding, 0, 0, layers[id]->mask,
ShapeSet);
XFlush(x11->dpy);
}
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