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/*
* Central facade for accessing and managing on-canvas controls.
*
* Author:
* Jon A. Cruz <jon@joncruz.org>
*
* Copyright 2012 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "control-manager.h"
#include <algorithm>
#include <glib.h>
#include <glib-object.h>
#include "display/sodipodi-ctrl.h" // for SP_TYPE_CTRL
#include "display/sp-ctrlpoint.h"
#include "preferences.h"
namespace {
std::map<Inkscape::ControlType, std::vector<int> > sizeTable;
} // namespace
#define FILL_COLOR_NORMAL 0xffffff7f
#define FILL_COLOR_MOUSEOVER 0xff0000ff
namespace Inkscape {
class ControlManagerImpl
{
public:
ControlManagerImpl();
~ControlManagerImpl() {}
void setControlSize(int size, bool force = false);
void track(SPCanvasItem *anchor);
sigc::connection connectCtrlSizeChanged(const sigc::slot<void> &slot);
void updateItem(SPCanvasItem *item);
private:
static void thingFinalized(gpointer data, GObject *wasObj);
void thingFinalized(GObject *wasObj);
class PrefListener : public Inkscape::Preferences::Observer
{
public:
PrefListener(ControlManagerImpl &manager) : Inkscape::Preferences::Observer("/options/grabsize/value"), _mgr(manager) {}
virtual ~PrefListener() {}
virtual void notify(Inkscape::Preferences::Entry const &val) {
int size = val.getIntLimited(3, 1, 7);
_mgr.setControlSize(size);
}
ControlManagerImpl &_mgr;
};
sigc::signal<void> _sizeChangedSignal;
PrefListener _prefHook;
int _size;
std::vector<SPCanvasItem *> _itemList;
std::map<Inkscape::ControlType, std::vector<int> > _sizeTable;
};
ControlManagerImpl::ControlManagerImpl() :
_sizeChangedSignal(),
_prefHook(*this),
_size(3),
_itemList(),
_sizeTable()
{
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
prefs->addObserver(_prefHook);
_size = prefs->getIntLimited("/options/grabsize/value", 3, 1, 7);
{
int sizes[] = {8, 8, 8, 8, 8, 8, 8};
_sizeTable[CTRL_TYPE_UNKNOWN] = std::vector<int>(sizes, sizes + (sizeof(sizes) / sizeof(sizes[0])));
}
{
int sizes[] = {2, 4, 6, 8, 10, 12, 14};
_sizeTable[CTRL_TYPE_ANCHOR] = std::vector<int>(sizes, sizes + (sizeof(sizes) / sizeof(sizes[0])));
}
{
int sizes[] = {2, 3, 4, 7, 8, 9, 10};
_sizeTable[CTRL_TYPE_ADJ_HANDLE] = std::vector<int>(sizes, sizes + (sizeof(sizes) / sizeof(sizes[0])));
}
{
int sizes[] = {4, 6, 8, 10, 12, 14, 16};
_sizeTable[CTRL_TYPE_POINT] = std::vector<int>(sizes, sizes + (sizeof(sizes) / sizeof(sizes[0])));
_sizeTable[CTRL_TYPE_ROTATE] = std::vector<int>(sizes, sizes + (sizeof(sizes) / sizeof(sizes[0])));
_sizeTable[CTRL_TYPE_SIZER] = std::vector<int>(sizes, sizes + (sizeof(sizes) / sizeof(sizes[0])));
_sizeTable[CTRL_TYPE_SHAPER] = std::vector<int>(sizes, sizes + (sizeof(sizes) / sizeof(sizes[0])));
}
{
int sizes[] = {2, 3, 4, 7, 8, 9, 10};
_sizeTable[CTRL_TYPE_ORIGIN] = std::vector<int>(sizes, sizes + (sizeof(sizes) / sizeof(sizes[0])));
}
}
void ControlManagerImpl::setControlSize(int size, bool force)
{
if ((size < 1) || (size > 7)) {
g_warning("Illegal logical size set: %d", size);
} else if (force || (size != _size)) {
_size = size;
for (std::vector<SPCanvasItem *>::iterator it = _itemList.begin(); it != _itemList.end(); ++it)
{
if (*it) {
updateItem(*it);
}
}
_sizeChangedSignal.emit();
}
}
void ControlManagerImpl::track(SPCanvasItem *item)
{
g_object_weak_ref( G_OBJECT(item), ControlManagerImpl::thingFinalized, this );
_itemList.push_back(item);
setControlSize(_size, true);
}
sigc::connection ControlManagerImpl::connectCtrlSizeChanged(const sigc::slot<void> &slot)
{
return _sizeChangedSignal.connect(slot);
}
void ControlManagerImpl::updateItem(SPCanvasItem *item)
{
if (item) {
double target = _sizeTable[item->ctrlType][_size - 1];
if ((item->ctrlType == CTRL_TYPE_ORIGIN) && SP_IS_CTRLPOINT(item)) {
sp_ctrlpoint_set_radius(SP_CTRLPOINT(item), target / 2.0);
} else {
sp_canvas_item_set(item, "size", target, NULL);
}
sp_canvas_item_request_update(item);
}
}
void ControlManagerImpl::thingFinalized(gpointer data, GObject *wasObj)
{
if (data) {
reinterpret_cast<ControlManagerImpl *>(data)->thingFinalized(wasObj);
}
}
void ControlManagerImpl::thingFinalized(GObject *wasObj)
{
SPCanvasItem *wasItem = reinterpret_cast<SPCanvasItem *>(wasObj);
if (wasItem)
{
std::vector<SPCanvasItem *>::iterator it = std::find(_itemList.begin(), _itemList.end(), wasItem);
if (it != _itemList.end())
{
_itemList.erase(it);
}
}
}
// ----------------------------------------------------
ControlManager::ControlManager() :
_impl(new ControlManagerImpl())
{
}
ControlManager::~ControlManager()
{
}
ControlManager &ControlManager::getManager()
{
static ControlManager instance;
return instance;
}
SPCanvasItem *ControlManager::createControl(SPCanvasGroup *parent, ControlType type)
{
SPCanvasItem *item = 0;
switch (type)
{
case CTRL_TYPE_ADJ_HANDLE:
item = sp_canvas_item_new(parent, SP_TYPE_CTRL,
"shape", SP_CTRL_SHAPE_CIRCLE,
"size", 4.0,
"filled", 0,
"fill_color", 0xff00007f,
"stroked", 1,
"stroke_color", 0x0000ff7f,
NULL);
break;
case CTRL_TYPE_ANCHOR:
item = sp_canvas_item_new(parent, SP_TYPE_CTRL,
"size", 6.0,
"filled", 1,
"fill_color", FILL_COLOR_NORMAL,
"stroked", 1,
"stroke_color", 0x000000ff,
NULL);
break;
case CTRL_TYPE_ORIGIN:
item = sp_canvas_item_new(parent, SP_TYPE_CTRLPOINT, NULL);
break;
case CTRL_TYPE_UNKNOWN:
default:
item = sp_canvas_item_new(parent, SP_TYPE_CTRL, NULL);
}
if (item) {
item->ctrlType = type;
}
return item;
}
void ControlManager::track(SPCanvasItem *item)
{
_impl->track(item);
}
sigc::connection ControlManager::connectCtrlSizeChanged(const sigc::slot<void> &slot)
{
return _impl->connectCtrlSizeChanged(slot);
}
void ControlManager::updateItem(SPCanvasItem *item)
{
return _impl->updateItem(item);
}
} // namespace Inkscape
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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