radiant/grid.cpp

   1 /*
   2    Copyright (C) 2001-2006, William Joseph.
   3    All Rights Reserved.
   4
   5    This file is part of GtkRadiant.
   6
   7    GtkRadiant is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    GtkRadiant is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GtkRadiant; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20  */
  21
  22 #include "grid.h"
  23
  24 #include <math.h>
  25 #include <vector>
  26 #include <algorithm>
  27
  28 #include "preferencesystem.h"
  29
  30 #include "gtkutil/widget.h"
  31 #include "signal/signal.h"
  32 #include "stringio.h"
  33
  34 #include "gtkmisc.h"
  35 #include "commands.h"
  36 #include "preferences.h"
  37
  38
  39
  40 Signal0 g_gridChange_callbacks;
  41
  42 void AddGridChangeCallback( const SignalHandler& handler ){
  43         g_gridChange_callbacks.connectLast( handler );
  44         handler();
  45 }
  46
  47 void GridChangeNotify(){
  48         g_gridChange_callbacks();
  49 }
  50
  51 enum GridPower
  52 {
  53         GRIDPOWER_0125 = -3,
  54         GRIDPOWER_025 = -2,
  55         GRIDPOWER_05 = -1,
  56         GRIDPOWER_1 = 0,
  57         GRIDPOWER_2 = 1,
  58         GRIDPOWER_4 = 2,
  59         GRIDPOWER_8 = 3,
  60         GRIDPOWER_16 = 4,
  61         GRIDPOWER_32 = 5,
  62         GRIDPOWER_64 = 6,
  63         GRIDPOWER_128 = 7,
  64         GRIDPOWER_256 = 8,
  65 };
  66
  67
  68 typedef const char* GridName;
  69 // this must match the GridPower enumeration
  70 const GridName g_gridnames[] = {
  71         "0.125",
  72         "0.25",
  73         "0.5",
  74         "1",
  75         "2",
  76         "4",
  77         "8",
  78         "16",
  79         "32",
  80         "64",
  81         "128",
  82         "256",
  83 };
  84
  85 inline GridPower GridPower_forGridDefault( int gridDefault ){
  86         return static_cast<GridPower>( gridDefault - 3 );
  87 }
  88
  89 inline int GridDefault_forGridPower( GridPower gridPower ){
  90         return gridPower + 3;
  91 }
  92
  93 int g_grid_default = GridDefault_forGridPower( GRIDPOWER_8 );
  94
  95 int g_grid_power = GridPower_forGridDefault( g_grid_default );
  96
  97 bool g_grid_snap = true;
  98
  99 int Grid_getPower(){
 100         return g_grid_power;
 101 }
 102
 103 inline float GridSize_forGridPower( int gridPower ){
 104         return pow( 2.0f, gridPower );
 105 }
 106
 107 float g_gridsize = GridSize_forGridPower( g_grid_power );
 108
 109 float GetSnapGridSize(){
 110         return g_grid_snap ? g_gridsize : 0;
 111 }
 112
 113 float GetGridSize(){
 114         return g_gridsize;
 115 }
 116
 117
 118 void setGridPower( GridPower power );
 119
 120 class GridMenuItem
 121 {
 122 GridPower m_id;
 123
 124 GridMenuItem( const GridMenuItem& other ); // NOT COPYABLE
 125 GridMenuItem& operator=( const GridMenuItem& other ); // NOT ASSIGNABLE
 126 public:
 127 ToggleItem m_item;
 128
 129 GridMenuItem( GridPower id ) : m_id( id ), m_item( ExportCaller( *this ) ){
 130 }
 131 void set(){
 132         g_grid_power = m_id;
 133         m_item.update();
 134         setGridPower( m_id );
 135 }
 136 typedef MemberCaller<GridMenuItem, &GridMenuItem::set> SetCaller;
 137 void active( const BoolImportCallback& importCallback ){
 138         importCallback( g_grid_power == m_id );
 139 }
 140 typedef MemberCaller1<GridMenuItem, const BoolImportCallback&, &GridMenuItem::active> ExportCaller;
 141 };
 142
 143 GridMenuItem g_gridMenu0125( GRIDPOWER_0125 );
 144 GridMenuItem g_gridMenu025( GRIDPOWER_025 );
 145 GridMenuItem g_gridMenu05( GRIDPOWER_05 );
 146 GridMenuItem g_gridMenu1( GRIDPOWER_1 );
 147 GridMenuItem g_gridMenu2( GRIDPOWER_2 );
 148 GridMenuItem g_gridMenu4( GRIDPOWER_4 );
 149 GridMenuItem g_gridMenu8( GRIDPOWER_8 );
 150 GridMenuItem g_gridMenu16( GRIDPOWER_16 );
 151 GridMenuItem g_gridMenu32( GRIDPOWER_32 );
 152 GridMenuItem g_gridMenu64( GRIDPOWER_64 );
 153 GridMenuItem g_gridMenu128( GRIDPOWER_128 );
 154 GridMenuItem g_gridMenu256( GRIDPOWER_256 );
 155
 156 void setGridPower( GridPower power ){
 157         g_grid_snap = true;
 158         g_gridsize = GridSize_forGridPower( power );
 159
 160         g_gridMenu0125.m_item.update();
 161         g_gridMenu025.m_item.update();
 162         g_gridMenu05.m_item.update();
 163         g_gridMenu1.m_item.update();
 164         g_gridMenu2.m_item.update();
 165         g_gridMenu4.m_item.update();
 166         g_gridMenu8.m_item.update();
 167         g_gridMenu16.m_item.update();
 168         g_gridMenu32.m_item.update();
 169         g_gridMenu64.m_item.update();
 170         g_gridMenu128.m_item.update();
 171         g_gridMenu256.m_item.update();
 172         GridChangeNotify();
 173 }
 174
 175 void GridPrev(){
 176         g_grid_snap = true;
 177         if ( g_grid_power > GRIDPOWER_0125 ) {
 178                 setGridPower( static_cast<GridPower>( --g_grid_power ) );
 179         }
 180 }
 181
 182 void GridNext(){
 183         g_grid_snap = true;
 184         if ( g_grid_power < GRIDPOWER_256 ) {
 185                 setGridPower( static_cast<GridPower>( ++g_grid_power ) );
 186         }
 187 }
 188
 189 void ToggleGridSnap(){
 190         g_grid_snap = !g_grid_snap;
 191         GridChangeNotify();
 192 }
 193
 194 void Grid_registerCommands(){
 195         GlobalCommands_insert( "GridDown", FreeCaller<GridPrev>(), Accelerator( '[' ) );
 196         GlobalCommands_insert( "GridUp", FreeCaller<GridNext>(), Accelerator( ']' ) );
 197
 198         GlobalCommands_insert( "ToggleGridSnap", FreeCaller<ToggleGridSnap>() );
 199
 200         GlobalToggles_insert( "SetGrid0.125", GridMenuItem::SetCaller( g_gridMenu0125 ), ToggleItem::AddCallbackCaller( g_gridMenu0125.m_item ) );
 201         GlobalToggles_insert( "SetGrid0.25", GridMenuItem::SetCaller( g_gridMenu025 ), ToggleItem::AddCallbackCaller( g_gridMenu025.m_item ) );
 202         GlobalToggles_insert( "SetGrid0.5", GridMenuItem::SetCaller( g_gridMenu05 ), ToggleItem::AddCallbackCaller( g_gridMenu05.m_item ) );
 203         GlobalToggles_insert( "SetGrid1", GridMenuItem::SetCaller( g_gridMenu1 ), ToggleItem::AddCallbackCaller( g_gridMenu1.m_item ), Accelerator( '1' ) );
 204         GlobalToggles_insert( "SetGrid2", GridMenuItem::SetCaller( g_gridMenu2 ), ToggleItem::AddCallbackCaller( g_gridMenu2.m_item ), Accelerator( '2' ) );
 205         GlobalToggles_insert( "SetGrid4", GridMenuItem::SetCaller( g_gridMenu4 ), ToggleItem::AddCallbackCaller( g_gridMenu4.m_item ), Accelerator( '3' ) );
 206         GlobalToggles_insert( "SetGrid8", GridMenuItem::SetCaller( g_gridMenu8 ), ToggleItem::AddCallbackCaller( g_gridMenu8.m_item ), Accelerator( '4' ) );
 207         GlobalToggles_insert( "SetGrid16", GridMenuItem::SetCaller( g_gridMenu16 ), ToggleItem::AddCallbackCaller( g_gridMenu16.m_item ), Accelerator( '5' ) );
 208         GlobalToggles_insert( "SetGrid32", GridMenuItem::SetCaller( g_gridMenu32 ), ToggleItem::AddCallbackCaller( g_gridMenu32.m_item ), Accelerator( '6' ) );
 209         GlobalToggles_insert( "SetGrid64", GridMenuItem::SetCaller( g_gridMenu64 ), ToggleItem::AddCallbackCaller( g_gridMenu64.m_item ), Accelerator( '7' ) );
 210         GlobalToggles_insert( "SetGrid128", GridMenuItem::SetCaller( g_gridMenu128 ), ToggleItem::AddCallbackCaller( g_gridMenu128.m_item ), Accelerator( '8' ) );
 211         GlobalToggles_insert( "SetGrid256", GridMenuItem::SetCaller( g_gridMenu256 ), ToggleItem::AddCallbackCaller( g_gridMenu256.m_item ), Accelerator( '9' ) );
 212 }
 213
 214
 215 void Grid_constructMenu( ui::Menu menu ){
 216         create_check_menu_item_with_mnemonic( menu, "Grid0.125", "SetGrid0.125" );
 217         create_check_menu_item_with_mnemonic( menu, "Grid0.25", "SetGrid0.25" );
 218         create_check_menu_item_with_mnemonic( menu, "Grid0.5", "SetGrid0.5" );
 219         create_check_menu_item_with_mnemonic( menu, "Grid1", "SetGrid1" );
 220         create_check_menu_item_with_mnemonic( menu, "Grid2", "SetGrid2" );
 221         create_check_menu_item_with_mnemonic( menu, "Grid4", "SetGrid4" );
 222         create_check_menu_item_with_mnemonic( menu, "Grid8", "SetGrid8" );
 223         create_check_menu_item_with_mnemonic( menu, "Grid16", "SetGrid16" );
 224         create_check_menu_item_with_mnemonic( menu, "Grid32", "SetGrid32" );
 225         create_check_menu_item_with_mnemonic( menu, "Grid64", "SetGrid64" );
 226         create_check_menu_item_with_mnemonic( menu, "Grid128", "SetGrid128" );
 227         create_check_menu_item_with_mnemonic( menu, "Grid256", "SetGrid256" );
 228 }
 229
 230 void Grid_registerShortcuts(){
 231         command_connect_accelerator( "ToggleGrid" );
 232         command_connect_accelerator( "GridDown" );
 233         command_connect_accelerator( "GridUp" );
 234         command_connect_accelerator( "ToggleGridSnap" );
 235 }
 236
 237 void Grid_constructPreferences( PreferencesPage& page ){
 238         page.appendCombo(
 239                 "Default grid spacing",
 240                 g_grid_default,
 241                 ARRAY_RANGE( g_gridnames )
 242                 );
 243 }
 244 void Grid_constructPage( PreferenceGroup& group ){
 245         PreferencesPage page( group.createPage( "Grid", "Grid Settings" ) );
 246         Grid_constructPreferences( page );
 247 }
 248 void Grid_registerPreferencesPage(){
 249         PreferencesDialog_addSettingsPage( FreeCaller1<PreferenceGroup&, Grid_constructPage>() );
 250 }
 251
 252 void Grid_construct(){
 253         Grid_registerPreferencesPage();
 254
 255         g_grid_default = GridDefault_forGridPower( GRIDPOWER_8 );
 256
 257         GlobalPreferenceSystem().registerPreference( "GridDefault", IntImportStringCaller( g_grid_default ), IntExportStringCaller( g_grid_default ) );
 258
 259         g_grid_power = GridPower_forGridDefault( g_grid_default );
 260         g_gridsize = GridSize_forGridPower( g_grid_power );
 261 }
 262
 263 void Grid_destroy(){
 264 }