main.cpp

   1 /*
   2  * Copyright (c) 2007-2008 Mauro Iazzi
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use,
   8  * copy, modify, merge, publish, distribute, sublicense, and/or sell
   9  * copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following
  11  * conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be
  14  * included in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  18  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  20  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  21  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23  * OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "common_bind.hpp"
  28 #include "luafunction.hpp"
  29 #include "lqt_bind_QLabel.hpp"
  30 #include "lqt_bind_QCoreApplication.hpp"
  31 #include "lqt_bind_QApplication.hpp"
  32 #include "lqt_bind_QAbstractButton.hpp"
  33 #include "lqt_bind_QPushButton.hpp"
  34 #include "lqt_bind_QObject.hpp"
  35 #include "lqt_bind_QFont.hpp"
  36 #include "lqt_bind_QWidget.hpp"
  37 #include "lqt_bind_QTextEdit.hpp"
  38 #include "lqt_bind_QAbstractScrollArea.hpp"
  39 #include "lqt_bind_QFrame.hpp"
  40 #include "lqt_bind_QEvent.hpp"
  41 #include "lqt_bind_QLayout.hpp"
  42 #include "lqt_bind_QBoxLayout.hpp"
  43 #include "lqt_bind_QVBoxLayout.hpp"
  44
  45 #define EXPORT(n) do { \
  46         luaL_getmetatable(L,#n "*" );\
  47         lua_setglobal(L, #n);\
  48 } while (0)
  49
  50 /*
  51 #include <QApplication>
  52 #include <QPushButton>
  53 #include <QDebug>
  54 #include <QSlider>
  55 #include <QSpinBox>
  56 #include <QTextEdit>
  57 #include <QVBoxLayout>
  58 #include <QMessageBox>
  59 #include <QShortcut>
  60 #include <QWidget>
  61 // */
  62
  63 static int retriever (lua_State *L) {
  64         lua_pushvalue(L, lua_upvalueindex(1));
  65         return 1;
  66 }
  67
  68 static int F2S (lua_State *L) {
  69         lua_settop(L, 1);
  70         if (!lua_isfunction(L, -1)) {
  71                 return 0;
  72         }
  73         LuaFunction *lf = new LuaFunction(L);
  74         lua_pushstring(L, "1function()");
  75         return 2;
  76 }
  77
  78 int main(int argc, char *argv[])
  79 {
  80   QApplication *app = new QApplication(argc, argv);
  81
  82   int st = 0;
  83         int oldtop = 0;
  84   lua_State *L = lua_open();
  85   luaL_openlibs(L);
  86   luaopen_QEvent(L);
  87   luaopen_QObject(L);
  88   luaopen_QFont(L);
  89   luaopen_QWidget(L);
  90   luaopen_QLabel(L);
  91   luaopen_QPushButton(L);
  92   luaopen_QAbstractButton(L);
  93   luaopen_QApplication(L);
  94   luaopen_QCoreApplication(L);
  95   luaopen_QTextEdit(L);
  96   luaopen_QAbstractScrollArea(L);
  97   luaopen_QFrame(L);
  98
  99         luaopen_QLayout(L);
 100         luaopen_QBoxLayout(L);
 101         luaopen_QVBoxLayout(L);
 102
 103         lua_pushcfunction(L, F2S);
 104         lua_setglobal(L, "SLOT");
 105
 106 #if 1
 107         EXPORT(QWidget);
 108         EXPORT(QObject);
 109         EXPORT(QLabel);
 110         EXPORT(QFont);
 111         EXPORT(QEvent);
 112         EXPORT(QAbstractButton);
 113         EXPORT(QPushButton);
 114         EXPORT(QApplication);
 115         EXPORT(QTextEdit);
 116         EXPORT(QVBoxLayout);
 117
 118         lua_pushvalue(L, LUA_REGISTRYINDEX);
 119         lua_setglobal(L, "_R");
 120         luaL_dostring(L, "\
 121                         do\
 122                         local del = QEvent.delete\
 123                         local done = {}\
 124                         local search\
 125                         function search (k, v)\
 126                         if v == del then print ('here', v) return true end\
 127                         if type(v) == 'table' then\
 128                           if not done[v] then\
 129                                 done[v]=true\
 130                                 for i, e in pairs(v) do\
 131                                   if search(i, e) then print (k) end\
 132                                 end\
 133                                 end\
 134                         end\
 135                         end\
 136                         search('_G', _G)\
 137                         end");
 138
 139
 140         lqtL_pushudata(L, app, "QApplication*");
 141         lua_pushcclosure(L, retriever, 1);
 142         lua_setglobal(L, "app");
 143
 144   lua_getglobal(L, "QApplication");
 145   lua_getglobal(L, "app");
 146         lua_setfield(L, -2, "new");
 147
 148         lua_pushnil(L);
 149         lua_setglobal(L, "app");
 150
 151
 152         luaL_dofile(L, "tutorial.lua");
 153         qDebug() << lua_tostring(L, -2) << lua_tostring(L, -1);
 154
 155         lua_getglobal(L, "PB");
 156
 157 #else
 158   lua_checkstack(L, 15);
 159
 160   QWidget *mainwin = new LuaBinder<QWidget>(L, 0, 0);
 161
 162   lqtL_pushudata(L, app, "QApplication*");
 163         lua_setglobal(L, "app");
 164
 165   QPushButton butt;
 166         lqtL_pushudata(L, &butt, "QPushButton*");
 167         lua_setglobal(L, "my_button");
 168         luaL_dostring(L, "my_button:show();my_button:connect('2pressed()', my_button, '1close()')");
 169         luaL_dostring(L, "my_button:setWindowTitle'lqt ROCKS!'");
 170         luaL_dostring(L, "my_button:setText'Hello World'");
 171         luaL_dostring(L, "my_button:setFixedSize(200, 100)");
 172         qDebug() << lua_tostring(L, -1);
 173         lua_settop(L, 0);
 174
 175   //QWidget *mainwin = new QWidget(0, 0);
 176
 177         luaL_dostring(L, "function override(t, k) local old_t = t[k] if type(old_t)~='function' then return end t[k] = function(...) print('overridden ', k, 'on', ...) return old_t(...) end end");
 178
 179   lqtL_pushudata(L, mainwin, "QWidget*");
 180   lua_pushvalue(L, -1);
 181   lua_setglobal(L, "mainwin");
 182         luaL_dostring(L, "my_button:show();my_button:connect('2pressed()', mainwin, '1close()')");
 183
 184         oldtop = lua_gettop(L);
 185         //luaL_dostring(L, "print(mainwin.isWidgetType)");
 186         luaL_dostring(L, "print(mainwin:isWidgetType())");
 187         luaL_dostring(L, "mainwin:setWindowTitle'TestTitle'");
 188         qDebug() << lua_tostring(L, -1);
 189         lua_settop(L, oldtop);
 190
 191         luaL_dostring(L, "override(mainwin, '__gc')");
 192         //luaL_dostring(L, "override(mainwin, '__index')");
 193         //luaL_dostring(L, "override(mainwin, '__newindex')");
 194         //luaL_dostring(L, "mainwin.qt_metacast = nil");
 195         //luaL_dostring(L, "print(mainwin.qt_metacast)");
 196
 197   luaL_dostring(L, "mainwin['~QWidget'] = function(obj) print('deleting', obj) end;");
 198   //luaL_dostring(L, "local qtmc = mainwin.qt_metacast;"
 199                    //"mainwin.qt_metacast = function(...) print('overridden qt_metacast', ...) return qtmc(...) end;");
 200   //luaL_dostring(L, "local hfw = mainwin.heightForWidth;"
 201                    //"mainwin.heightForWidth = function(...) print('overridden heightForWidth', ...) return hfw(...) end;");
 202   //luaL_dostring(L, "print(mainwin.RenderFlag.IgnoreMask)");
 203
 204   QVBoxLayout *qvbl = new QVBoxLayout;
 205   QTextEdit *qte = new QTextEdit;
 206   QSpinBox *qsb = new QSpinBox;
 207   qvbl->addWidget(qte);
 208   qvbl->addWidget(qsb);
 209
 210   mainwin->setLayout(qvbl);
 211
 212   qDebug() << "==============";
 213
 214   lua_getfield(L, -1, "show");
 215   lua_pushvalue(L, -2);
 216   lua_call(L, 1, 0);
 217
 218   lua_getfield(L, -1, "width");
 219   lua_pushvalue(L, -2);
 220   lua_call(L, 1, 1);
 221   qDebug() << lua_tonumber(L, -1) << mainwin->width();
 222   lua_pop(L, 1);
 223
 224   lua_getfield(L, -1, "height");
 225   lua_pushvalue(L, -2);
 226   lua_call(L, 1, 1);
 227   qDebug() << lua_tonumber(L, -1) << mainwin->height();
 228   lua_pop(L, 1);
 229
 230   lua_getfield(L, -1, "isTopLevel");
 231   lua_pushvalue(L, -2);
 232   lua_call(L, 1, 1);
 233   qDebug() << (bool)lua_toboolean(L, -1) << mainwin->isTopLevel();
 234   lua_pop(L, 1);
 235
 236   qDebug() << lua_gettop(L) << lua_tostring(L, 2);
 237
 238   lua_getfield(L, -1, "heightForWidth");
 239   lua_pushvalue(L, -2);
 240   lua_pushinteger(L, 278);
 241   lua_call(L, 2, 1);
 242   qDebug() << lua_tonumber(L, -1) << mainwin->heightForWidth(278);
 243   lua_pop(L, 1);
 244
 245   lua_getfield(L, -1, "new");
 246   lua_call(L, 0, 1);
 247   lua_getfield(L, -1, "show");
 248   lua_pushvalue(L, -2);
 249   lua_call(L, 1, 0);
 250   lqtL_manageudata(L, -1);
 251   lua_pop(L, 1);
 252
 253   //luaL_dostring(L, "child = mainwin.new();child:delete();");
 254   lua_gc(L, LUA_GCCOLLECT, 0);
 255   qDebug() << "=================";
 256   luaL_dostring(L, "w = mainwin.new();w:show();w:move(400, 400)");
 257   lua_gc(L, LUA_GCCOLLECT, 0);
 258   qDebug() << "=================";
 259
 260   lua_getfield(L, -1, "move");
 261   lua_pushvalue(L, -2);
 262   lua_pushinteger(L, 100);
 263   lua_pushinteger(L, 100);
 264   lua_call(L, 3, 0);
 265
 266   //mainwin->show();
 267
 268   //delete mainwin;
 269
 270   //st = app->exec();
 271         luaL_dostring(L, "app:exec()");
 272
 273   qDebug() << "I will now close Lua state";
 274 #endif
 275   lua_close(L);
 276
 277   return st;
 278 }
 279