Mercurial > octave-nkf
view libgui/graphics/gl-select.cc @ 19629:be7ac98fab43 gui-release
strip trailing whitespace from most source files
* NEWS, etc/NEWS.3, libgui/graphics/Backend.h,
libgui/graphics/ButtonControl.h, libgui/graphics/EditControl.cc,
libgui/graphics/Object.h, libgui/graphics/QtHandlesUtils.cc,
libgui/graphics/ToolBarButton.h, libgui/graphics/__init_qt__.cc,
libgui/graphics/gl-select.cc,
libgui/qterminal/libqterminal/unix/TerminalView.cpp,
libgui/qterminal/libqterminal/unix/TerminalView.h,
libgui/qterminal/libqterminal/win32/QWinTerminalImpl.cpp,
libgui/src/m-editor/file-editor-tab.cc,
libgui/src/m-editor/file-editor.cc, libgui/src/m-editor/file-editor.h,
libgui/src/m-editor/octave-qscintilla.cc,
libgui/src/settings-dialog.cc, libgui/src/shortcut-manager.cc,
libgui/src/workspace-view.cc, libinterp/corefcn/graphics.cc,
libinterp/corefcn/input.cc, libinterp/parse-tree/pt-unop.cc,
liboctave/array/dSparse.h, scripts/pkg/pkg.m,
scripts/polynomial/polyeig.m, test/io.tst: Strip trailing whitespace.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 20 Jan 2015 09:43:29 -0500 |
parents | 92f91183630b |
children | 17d647821d61 |
line wrap: on
line source
/* Copyright (C) 2011-2014 Michael Goffioul This file is part of Octave. Octave 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 3 of the License, or (at your option) any later version. Octave 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 Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include "gl-select.h" #include <iostream> void opengl_selector::apply_pick_matrix (void) { GLdouble p_matrix[16]; GLint viewport[4]; glGetDoublev (GL_PROJECTION_MATRIX, p_matrix); glGetIntegerv (GL_VIEWPORT, viewport); glMatrixMode (GL_PROJECTION); glLoadIdentity (); gluPickMatrix (xp, yp, size, size, viewport); glMultMatrixd (p_matrix); glMatrixMode (GL_MODELVIEW); } void opengl_selector::setup_opengl_transformation (const axes::properties& props) { opengl_renderer::setup_opengl_transformation (props); apply_pick_matrix (); } void opengl_selector::init_marker (const std::string& m, double sz, float width) { opengl_renderer::init_marker (m, sz, width); apply_pick_matrix (); } # define BUFFER_SIZE 128 graphics_object opengl_selector::select (const graphics_object& ax, int x, int y, int flags) { glEnable (GL_DEPTH_TEST); glDepthFunc (GL_LEQUAL); xp = x; yp = y; GLuint select_buffer[BUFFER_SIZE]; glSelectBuffer (BUFFER_SIZE, select_buffer); glRenderMode (GL_SELECT); glInitNames (); object_map.clear (); draw (ax); int hits = glRenderMode (GL_RENDER); graphics_object obj; if (hits > 0) { GLuint current_minZ = 0xffffffff; GLuint current_name = 0xffffffff; for (int i = 0, j = 0; i < hits && j < BUFFER_SIZE-3; i++) { GLuint n = select_buffer[j++], minZ = select_buffer[j++]; j++; // skip maxZ if (((flags & select_last) == 0 && (minZ <= current_minZ)) || ((flags & select_last) != 0 && (minZ >= current_minZ))) { bool candidate = true; GLuint name = select_buffer[std::min (j + n, GLuint (BUFFER_SIZE)) - 1]; if ((flags & select_ignore_hittest) == 0) { graphics_object go = object_map[name]; if (! go.get_properties ().is_hittest ()) candidate = false; } if (candidate) { current_minZ = minZ; current_name = name; } j += n; } else j += n; } if (current_name != 0xffffffff) obj = object_map[current_name]; } else if (hits < 0) warning ("opengl_selector::select: selection buffer overflow"); object_map.clear (); return obj; } void opengl_selector::draw (const graphics_object& go, bool toplevel) { GLuint name = object_map.size (); object_map[name] = go; glPushName (name); opengl_renderer::draw (go, toplevel); glPopName (); } void opengl_selector::fake_text (double x, double y, double z, const Matrix& bbox, bool use_scale) { ColumnVector xpos, xp1, xp2; xpos = get_transform ().transform (x, y, z, use_scale); xp1 = xp2 = xpos; xp1(0) += bbox(0); xp1(1) -= bbox(1); xp2(0) += (bbox(0) + bbox(2)); xp2(1) -= (bbox(1) + bbox(3)); ColumnVector p1, p2, p3, p4; p1 = get_transform ().untransform (xp1(0), xp1(1), xp1(2), false); p2 = get_transform ().untransform (xp2(0), xp1(1), xp1(2), false); p3 = get_transform ().untransform (xp2(0), xp2(1), xp1(2), false); p4 = get_transform ().untransform (xp1(0), xp2(1), xp1(2), false); glBegin (GL_QUADS); glVertex3dv (p1.data ()); glVertex3dv (p2.data ()); glVertex3dv (p3.data ()); glVertex3dv (p4.data ()); glEnd (); } void opengl_selector::draw_text (const text::properties& props) { if (props.get_string ().is_empty ()) return; Matrix pos = props.get_data_position (); const Matrix bbox = props.get_extent_matrix (); fake_text (pos(0), pos(1), pos.numel () > 2 ? pos(2) : 0.0, bbox); } Matrix opengl_selector::render_text (const std::string& txt, double x, double y, double z, int halign, int valign, double rotation) { #if HAVE_FREETYPE uint8NDArray pixels; Matrix bbox; // FIXME: probably more efficient to only compute bbox instead // of doing full text rendering... text_to_pixels (txt, pixels, bbox, halign, valign, rotation); fake_text (x, y, z, bbox, false); return bbox; #else return Matrix (1, 4, 0.0); #endif }