/* * Copyright (c) 2005-2007 Hypertriton, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include "tileset.h" #include "tileview.h" #include "rg_math.h" struct circle_tool { RG_TileviewTool tool; enum { BEGIN_CIRCLE, SET_RADIUS } seq; VG_Element *cur_circle; VG_Vtx *cur_radius; }; static void init(void *p) { struct circle_tool *ct = p; ct->cur_circle = NULL; ct->cur_radius = NULL; ct->seq = BEGIN_CIRCLE; } static void mousebuttondown(void *p, RG_Sketch *sk, float x, float y, int button) { struct circle_tool *ct = p; VG *vg = sk->vg; RG_Tileview *tv = RG_TILEVIEW_TOOL(ct)->tv; Uint8 r, g, b; switch (ct->seq) { case BEGIN_CIRCLE: if (button == SDL_BUTTON_LEFT) { ct->cur_circle = VG_Begin(vg, VG_CIRCLE); VG_Vertex2(vg, x, y); ct->cur_radius = VG_Vertex2(vg, x, y); ct->seq = SET_RADIUS; tv->flags |= RG_TILEVIEW_NO_SCROLLING; AG_HSV2RGB(sk->h, sk->s, sk->v, &r, &g, &b); VG_Color4(vg, r, g, b, (int)(sk->a*255.0)); } break; case SET_RADIUS: if (button == SDL_BUTTON_RIGHT) { VG_DestroyElement(vg, ct->cur_circle); } ct->cur_radius = NULL; ct->cur_circle = NULL; ct->seq = BEGIN_CIRCLE; tv->flags &= ~RG_TILEVIEW_NO_SCROLLING; break; } } static void mousemotion(void *p, RG_Sketch *sk, float x, float y, float xrel, float yrel) { struct circle_tool *ct = p; if (ct->cur_circle != NULL) { ct->cur_radius->x = x; ct->cur_radius->y = y; ct->cur_circle->vg_circle.radius = Hypot(x - sk->vg->origin[2].x, y - sk->vg->origin[2].y); } else { sk->vg->origin[2].x = x; sk->vg->origin[2].y = y; } } RG_TileviewSketchToolOps sketch_circle_ops = { { N_("Circle"), N_("Draw circles."), sizeof(struct circle_tool), TILEVIEW_SKETCH_TOOL, NULL, -1, init, NULL, /* destroy */ NULL, /* edit */ NULL, /* selected */ NULL /* unselected */ }, mousebuttondown, NULL, /* mousebuttonup */ mousemotion, NULL, /* mousewheel */ NULL, /* keydown */ NULL, /* keyup */ };