326 lines
9.2 KiB
C++
326 lines
9.2 KiB
C++
//----------------------------------------------------------------------------
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// Anti-Grain Geometry - Version 2.4
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// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
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//
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// Permission to copy, use, modify, sell and distribute this software
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// is granted provided this copyright notice appears in all copies.
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// This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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//
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//----------------------------------------------------------------------------
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// Contact: mcseem@antigrain.com
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// mcseemagg@yahoo.com
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// http://www.antigrain.com
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//----------------------------------------------------------------------------
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//
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// classes rbox_ctrl_impl, rbox_ctrl
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//
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//----------------------------------------------------------------------------
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#include <string.h>
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#include "ctrl/agg_rbox_ctrl.h"
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namespace agg
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{
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//------------------------------------------------------------------------
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rbox_ctrl_impl::rbox_ctrl_impl(double x1, double y1,
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double x2, double y2, bool flip_y) :
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ctrl(x1, y1, x2, y2, flip_y),
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m_border_width(1.0),
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m_border_extra(0.0),
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m_text_thickness(1.5),
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m_text_height(9.0),
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m_text_width(0.0),
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m_num_items(0),
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m_cur_item(-1),
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m_ellipse_poly(m_ellipse),
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m_text_poly(m_text),
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m_idx(0),
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m_vertex(0)
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{
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calc_rbox();
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}
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//------------------------------------------------------------------------
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void rbox_ctrl_impl::calc_rbox()
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{
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m_xs1 = m_x1 + m_border_width;
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m_ys1 = m_y1 + m_border_width;
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m_xs2 = m_x2 - m_border_width;
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m_ys2 = m_y2 - m_border_width;
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}
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//------------------------------------------------------------------------
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void rbox_ctrl_impl::add_item(const char* text)
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{
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if(m_num_items < 32)
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{
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m_items[m_num_items].resize(strlen(text) + 1);
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strcpy(&m_items[m_num_items][0], text);
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m_num_items++;
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}
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}
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//------------------------------------------------------------------------
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void rbox_ctrl_impl::border_width(double t, double extra)
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{
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m_border_width = t;
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m_border_extra = extra;
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calc_rbox();
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}
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//------------------------------------------------------------------------
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void rbox_ctrl_impl::text_size(double h, double w)
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{
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m_text_width = w;
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m_text_height = h;
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}
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//------------------------------------------------------------------------
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void rbox_ctrl_impl::rewind(unsigned idx)
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{
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m_idx = idx;
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m_dy = m_text_height * 2.0;
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m_draw_item = 0;
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switch(idx)
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{
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default:
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case 0: // Background
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m_vertex = 0;
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m_vx[0] = m_x1 - m_border_extra;
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m_vy[0] = m_y1 - m_border_extra;
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m_vx[1] = m_x2 + m_border_extra;
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m_vy[1] = m_y1 - m_border_extra;
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m_vx[2] = m_x2 + m_border_extra;
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m_vy[2] = m_y2 + m_border_extra;
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m_vx[3] = m_x1 - m_border_extra;
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m_vy[3] = m_y2 + m_border_extra;
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break;
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case 1: // Border
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m_vertex = 0;
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m_vx[0] = m_x1;
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m_vy[0] = m_y1;
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m_vx[1] = m_x2;
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m_vy[1] = m_y1;
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m_vx[2] = m_x2;
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m_vy[2] = m_y2;
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m_vx[3] = m_x1;
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m_vy[3] = m_y2;
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m_vx[4] = m_x1 + m_border_width;
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m_vy[4] = m_y1 + m_border_width;
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m_vx[5] = m_x1 + m_border_width;
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m_vy[5] = m_y2 - m_border_width;
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m_vx[6] = m_x2 - m_border_width;
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m_vy[6] = m_y2 - m_border_width;
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m_vx[7] = m_x2 - m_border_width;
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m_vy[7] = m_y1 + m_border_width;
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break;
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case 2: // Text
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m_text.text(&m_items[0][0]);
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m_text.start_point(m_xs1 + m_dy * 1.5, m_ys1 + m_dy / 2.0);
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m_text.size(m_text_height, m_text_width);
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m_text_poly.width(m_text_thickness);
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m_text_poly.line_join(round_join);
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m_text_poly.line_cap(round_cap);
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m_text_poly.rewind(0);
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break;
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case 3: // Inactive items
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m_ellipse.init(m_xs1 + m_dy / 1.3,
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m_ys1 + m_dy / 1.3,
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m_text_height / 1.5,
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m_text_height / 1.5, 32);
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m_ellipse_poly.width(m_text_thickness);
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m_ellipse_poly.rewind(0);
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break;
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case 4: // Active Item
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if(m_cur_item >= 0)
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{
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m_ellipse.init(m_xs1 + m_dy / 1.3,
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m_ys1 + m_dy * m_cur_item + m_dy / 1.3,
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m_text_height / 2.0,
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m_text_height / 2.0, 32);
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m_ellipse.rewind(0);
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}
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break;
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}
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}
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//------------------------------------------------------------------------
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unsigned rbox_ctrl_impl::vertex(double* x, double* y)
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{
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unsigned cmd = path_cmd_line_to;
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switch(m_idx)
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{
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case 0:
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if(m_vertex == 0) cmd = path_cmd_move_to;
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if(m_vertex >= 4) cmd = path_cmd_stop;
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*x = m_vx[m_vertex];
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*y = m_vy[m_vertex];
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m_vertex++;
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break;
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case 1:
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if(m_vertex == 0 || m_vertex == 4) cmd = path_cmd_move_to;
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if(m_vertex >= 8) cmd = path_cmd_stop;
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*x = m_vx[m_vertex];
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*y = m_vy[m_vertex];
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m_vertex++;
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break;
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case 2:
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cmd = m_text_poly.vertex(x, y);
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if(is_stop(cmd))
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{
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m_draw_item++;
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if(m_draw_item >= m_num_items)
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{
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break;
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}
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else
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{
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m_text.text(&m_items[m_draw_item][0]);
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m_text.start_point(m_xs1 + m_dy * 1.5,
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m_ys1 + m_dy * (m_draw_item + 1) - m_dy / 2.0);
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m_text_poly.rewind(0);
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cmd = m_text_poly.vertex(x, y);
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}
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}
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break;
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case 3:
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cmd = m_ellipse_poly.vertex(x, y);
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if(is_stop(cmd))
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{
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m_draw_item++;
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if(m_draw_item >= m_num_items)
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{
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break;
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}
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else
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{
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m_ellipse.init(m_xs1 + m_dy / 1.3,
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m_ys1 + m_dy * m_draw_item + m_dy / 1.3,
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m_text_height / 1.5,
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m_text_height / 1.5, 32);
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m_ellipse_poly.rewind(0);
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cmd = m_ellipse_poly.vertex(x, y);
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}
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}
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break;
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case 4:
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if(m_cur_item >= 0)
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{
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cmd = m_ellipse.vertex(x, y);
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}
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else
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{
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cmd = path_cmd_stop;
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}
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break;
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default:
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cmd = path_cmd_stop;
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break;
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}
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if(!is_stop(cmd))
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{
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transform_xy(x, y);
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}
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return cmd;
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}
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//------------------------------------------------------------------------
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bool rbox_ctrl_impl::in_rect(double x, double y) const
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{
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inverse_transform_xy(&x, &y);
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return x >= m_x1 && x <= m_x2 && y >= m_y1 && y <= m_y2;
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}
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//------------------------------------------------------------------------
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bool rbox_ctrl_impl::on_mouse_button_down(double x, double y)
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{
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inverse_transform_xy(&x, &y);
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unsigned i;
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for(i = 0; i < m_num_items; i++)
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{
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double xp = m_xs1 + m_dy / 1.3;
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double yp = m_ys1 + m_dy * i + m_dy / 1.3;
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if(calc_distance(x, y, xp, yp) <= m_text_height / 1.5)
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{
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m_cur_item = int(i);
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return true;
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}
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}
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return false;
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}
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//------------------------------------------------------------------------
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bool rbox_ctrl_impl::on_mouse_move(double, double, bool)
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{
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return false;
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}
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//------------------------------------------------------------------------
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bool rbox_ctrl_impl::on_mouse_button_up(double, double)
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{
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return false;
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}
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//------------------------------------------------------------------------
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bool rbox_ctrl_impl::on_arrow_keys(bool left, bool right, bool down, bool up)
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{
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if(m_cur_item >= 0)
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{
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if(up || right)
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{
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m_cur_item++;
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if(m_cur_item >= int(m_num_items))
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{
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m_cur_item = 0;
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}
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return true;
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}
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if(down || left)
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{
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m_cur_item--;
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if(m_cur_item < 0)
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{
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m_cur_item = m_num_items - 1;
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}
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return true;
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}
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}
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return false;
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}
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}
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