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// K-3D
// Copyright (c) 1995-2005, Timothy M. Shead
//
// Contact: tshead@k-3d.com
//
// This program 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.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
/** \file
\author Tim Shead (tshead@k-3d.com)
*/
#include "common.h"
#include <k3d-i18n-config.h>
#include <k3dsdk/basic_math.h>
#include <k3dsdk/color.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3dsdk/irenderable_gl.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/options.h>
#include <k3dsdk/node.h>
#include <k3dsdk/render_state_gl.h>
#include <k3dsdk/selection.h>
#include <k3dsdk/share.h>
#include <k3dsdk/utility_gl.h>
#include <k3dsdk/vectors.h>
#include <FTGL/ftgl.h>
namespace module
{
namespace annotation
{
/////////////////////////////////////////////////////////////////////////////
// annotation_2d
class annotation_2d :
public k3d::node,
public k3d::gl::irenderable
{
typedef k3d::node base;
public:
annotation_2d(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document),
m_font_path(init_owner(*this) + init_name("font") + init_label(_("Font")) + init_description(_("Font path")) + init_value(k3d::share_path() / k3d::filesystem::generic_path("fonts/VeraBd.ttf")) + init_path_mode(k3d::ipath_property::READ) + init_path_type(k3d::options::path::fonts())),
m_font_size(init_owner(*this) + init_name("font_size") + init_label(_("Font Size")) + init_description(_("Font size.")) + init_value(14.0)),
m_line_width(init_owner(*this) + init_name("line_width") + init_label(_("Line Width")) + init_description(_("Maximum width of a single line of text..")) + init_value(200.0)),
m_line_spacing(init_owner(*this) + init_name("line_spacing") + init_label(_("Line Spacing")) + init_description(_("Controls the spacing between lines of text.")) + init_value(1.0)),
m_alignment(init_owner(*this) + init_name("alignment") + init_label(_("Alignment")) + init_description(_("Controls the alignment of adjacent lines of text.")) + init_value(LEFT) + init_values(alignment_values())),
m_text(init_owner(*this) + init_name("text") + init_label(_("Text")) + init_description(_("Annotation text")) + init_value(k3d::string_t(_("Annotation")))),
m_color(init_owner(*this) + init_name("color") + init_label(_("Color")) + init_description(_("Annotation color")) + init_value(k3d::color(0, 0, 0))),
m_x(init_owner(*this) + init_name("x") + init_label(_("X")) + init_description(_("X Position")) + init_value(0.0) + init_units(typeid(k3d::measurement::scalar)) + init_step_increment(0.1)),
m_y(init_owner(*this) + init_name("y") + init_label(_("Y")) + init_description(_("Y Position")) + init_value(0.0) + init_units(typeid(k3d::measurement::scalar)) + init_step_increment(0.1))
{
m_text.set_metadata_value("k3d:property-type", "k3d:multi-line-text");
m_font_path.changed_signal().connect(make_async_redraw_slot());
m_font_size.changed_signal().connect(make_async_redraw_slot());
m_line_width.changed_signal().connect(make_async_redraw_slot());
m_line_spacing.changed_signal().connect(make_async_redraw_slot());
m_alignment.changed_signal().connect(make_async_redraw_slot());
m_text.changed_signal().connect(make_async_redraw_slot());
m_color.changed_signal().connect(make_async_redraw_slot());
m_x.changed_signal().connect(make_async_redraw_slot());
m_y.changed_signal().connect(make_async_redraw_slot());
}
sigc::slot<void, iunknown*> make_async_redraw_slot()
{
return sigc::mem_fun(*this, &annotation_2d::async_redraw);
}
void async_redraw(iunknown*)
{
k3d::gl::redraw_all(document(), k3d::gl::irender_viewport::ASYNCHRONOUS);
}
k3d::uint_t gl_layer()
{
return 2048;
}
void gl_draw(const k3d::gl::render_state& State)
{
k3d::gl::store_attributes attributes;
k3d::gl::color3d(State.node_selection ? k3d::color(1, 1, 1) : m_color.pipeline_value());
draw(State);
}
void gl_select(const k3d::gl::render_state& State, const k3d::gl::selection_state& SelectState)
{
/** \note Selection is disabled for this plugin for a couple of reasons:
First, the combination of the custom matrix used to position the text and the
pick matrix causes weird behavior.
Second, we assume that it is useful to have on-screen displays that don't
interfere with "normal" selection of geometry. */
}
void draw(const k3d::gl::render_state& State)
{
FTGLPixmapFont font(m_font_path.pipeline_value().native_filesystem_string().c_str());
if(font.Error())
{
k3d::log() << error << "error initializing font" << std::endl;
return;
}
font.FaceSize(static_cast<unsigned int>(m_font_size.pipeline_value()));
FTSimpleLayout layout;
layout.SetFont(&font);
layout.SetLineLength(m_line_width.pipeline_value());
layout.SetLineSpacing(m_line_spacing.pipeline_value());
switch(m_alignment.pipeline_value())
{
case LEFT:
layout.SetAlignment(FTGL::ALIGN_LEFT);
break;
case CENTER:
layout.SetAlignment(FTGL::ALIGN_CENTER);
break;
case RIGHT:
layout.SetAlignment(FTGL::ALIGN_RIGHT);
break;
case JUSTIFY:
layout.SetAlignment(FTGL::ALIGN_JUSTIFY);
break;
}
glDisable(GL_LIGHTING);
glDisable(GL_TEXTURE_1D);
glDisable(GL_TEXTURE_2D);
glDisable(GL_BLEND);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(-1, 1, -1, 1, -1, 1);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glDisable(GL_LIGHTING);
glDisable(GL_TEXTURE_1D);
glDisable(GL_TEXTURE_2D);
glDisable(GL_BLEND);
const std::string text = m_text.pipeline_value();
glRasterPos3d(m_x.pipeline_value(), m_y.pipeline_value(), 0);
layout.Render(m_text.pipeline_value().c_str());
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<annotation_2d>factory(
k3d::uuid(0x2ad16705, 0x62f1410d, 0xbcc9800c, 0xfa93762e),
"Annotation2D",
_("Displays 2D text annotations, primarily for documentation / tutorials"),
"Annotation",
k3d::iplugin_factory::STABLE);
return factory;
}
private:
k3d_data(k3d::filesystem::path, immutable_name, change_signal, with_undo, local_storage, no_constraint, path_property, path_serialization) m_font_path;
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_font_size;
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_line_width;
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_line_spacing;
k3d_data(alignment_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, enumeration_property, with_serialization) m_alignment;
k3d::metadata::property<k3d_data(k3d::string_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization)> m_text;
k3d_data(k3d::color, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_color;
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, measurement_property, with_serialization) m_x;
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, measurement_property, with_serialization) m_y;
};
/////////////////////////////////////////////////////////////////////////////
// annotation_2d_factory
k3d::iplugin_factory& annotation_2d_factory()
{
return annotation_2d::get_factory();
}
} // namespace annotation
} // namespace module
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