agg/src/ctrl/agg_cbox_ctrl.cpp

215 lines
6.2 KiB
C++

//----------------------------------------------------------------------------
// Anti-Grain Geometry - Version 2.4
// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
//
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
//----------------------------------------------------------------------------
// Contact: mcseem@antigrain.com
// mcseemagg@yahoo.com
// http://www.antigrain.com
//----------------------------------------------------------------------------
//
// classes rbox_ctrl_impl, rbox_ctrl
//
//----------------------------------------------------------------------------
#include <string.h>
#include "ctrl/agg_cbox_ctrl.h"
namespace agg
{
//------------------------------------------------------------------------
cbox_ctrl_impl::cbox_ctrl_impl(double x, double y,
const char* l,
bool flip_y) :
ctrl(x, y, x + 9.0 * 1.5, y + 9.0 * 1.5, flip_y),
m_text_thickness(1.5),
m_text_height(9.0),
m_text_width(0.0),
m_status(false),
m_text_poly(m_text)
{
label(l);
}
//------------------------------------------------------------------------
void cbox_ctrl_impl::text_size(double h, double w)
{
m_text_width = w;
m_text_height = h;
}
//------------------------------------------------------------------------
void cbox_ctrl_impl::label(const char* l)
{
unsigned len = strlen(l);
if(len > 127) len = 127;
memcpy(m_label, l, len);
m_label[len] = 0;
}
//------------------------------------------------------------------------
bool cbox_ctrl_impl::on_mouse_button_down(double x, double y)
{
inverse_transform_xy(&x, &y);
if(x >= m_x1 && y >= m_y1 && x <= m_x2 && y <= m_y2)
{
m_status = !m_status;
return true;
}
return false;
}
//------------------------------------------------------------------------
bool cbox_ctrl_impl::on_mouse_move(double, double, bool)
{
return false;
}
//------------------------------------------------------------------------
bool cbox_ctrl_impl::in_rect(double x, double y) const
{
inverse_transform_xy(&x, &y);
return x >= m_x1 && y >= m_y1 && x <= m_x2 && y <= m_y2;
}
//------------------------------------------------------------------------
bool cbox_ctrl_impl::on_mouse_button_up(double, double)
{
return false;
}
//------------------------------------------------------------------------
bool cbox_ctrl_impl::on_arrow_keys(bool, bool, bool, bool)
{
return false;
}
//------------------------------------------------------------------------
void cbox_ctrl_impl::rewind(unsigned idx)
{
m_idx = idx;
double d2;
double t;
switch(idx)
{
default:
case 0: // Border
m_vertex = 0;
m_vx[0] = m_x1;
m_vy[0] = m_y1;
m_vx[1] = m_x2;
m_vy[1] = m_y1;
m_vx[2] = m_x2;
m_vy[2] = m_y2;
m_vx[3] = m_x1;
m_vy[3] = m_y2;
m_vx[4] = m_x1 + m_text_thickness;
m_vy[4] = m_y1 + m_text_thickness;
m_vx[5] = m_x1 + m_text_thickness;
m_vy[5] = m_y2 - m_text_thickness;
m_vx[6] = m_x2 - m_text_thickness;
m_vy[6] = m_y2 - m_text_thickness;
m_vx[7] = m_x2 - m_text_thickness;
m_vy[7] = m_y1 + m_text_thickness;
break;
case 1: // Text
m_text.text(m_label);
m_text.start_point(m_x1 + m_text_height * 2.0, m_y1 + m_text_height / 5.0);
m_text.size(m_text_height, m_text_width);
m_text_poly.width(m_text_thickness);
m_text_poly.line_join(round_join);
m_text_poly.line_cap(round_cap);
m_text_poly.rewind(0);
break;
case 2: // Active item
m_vertex = 0;
d2 = (m_y2 - m_y1) / 2.0;
t = m_text_thickness * 1.5;
m_vx[0] = m_x1 + m_text_thickness;
m_vy[0] = m_y1 + m_text_thickness;
m_vx[1] = m_x1 + d2;
m_vy[1] = m_y1 + d2 - t;
m_vx[2] = m_x2 - m_text_thickness;
m_vy[2] = m_y1 + m_text_thickness;
m_vx[3] = m_x1 + d2 + t;
m_vy[3] = m_y1 + d2;
m_vx[4] = m_x2 - m_text_thickness;
m_vy[4] = m_y2 - m_text_thickness;
m_vx[5] = m_x1 + d2;
m_vy[5] = m_y1 + d2 + t;
m_vx[6] = m_x1 + m_text_thickness;
m_vy[6] = m_y2 - m_text_thickness;
m_vx[7] = m_x1 + d2 - t;
m_vy[7] = m_y1 + d2;
break;
}
}
//------------------------------------------------------------------------
unsigned cbox_ctrl_impl::vertex(double* x, double* y)
{
unsigned cmd = path_cmd_line_to;
switch(m_idx)
{
case 0:
if(m_vertex == 0 || m_vertex == 4) cmd = path_cmd_move_to;
if(m_vertex >= 8) cmd = path_cmd_stop;
*x = m_vx[m_vertex];
*y = m_vy[m_vertex];
m_vertex++;
break;
case 1:
cmd = m_text_poly.vertex(x, y);
break;
case 2:
if(m_status)
{
if(m_vertex == 0) cmd = path_cmd_move_to;
if(m_vertex >= 8) cmd = path_cmd_stop;
*x = m_vx[m_vertex];
*y = m_vy[m_vertex];
m_vertex++;
}
else
{
cmd = path_cmd_stop;
}
break;
default:
cmd = path_cmd_stop;
break;
}
if(!is_stop(cmd))
{
transform_xy(x, y);
}
return cmd;
}
}