src/guiTextInputMenu.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "guiTextInputMenu.h"
  21 #include "debug.h"
  22 #include "serialization.h"
  23 #include <string>
  24
  25 GUITextInputMenu::GUITextInputMenu(gui::IGUIEnvironment* env,
  26                 gui::IGUIElement* parent, s32 id,
  27                 IMenuManager *menumgr,
  28                 TextDest *dest,
  29                 std::wstring initial_text
  30 ):
  31         GUIModalMenu(env, parent, id, menumgr),
  32         m_dest(dest),
  33         m_initial_text(initial_text)
  34 {
  35 }
  36
  37 GUITextInputMenu::~GUITextInputMenu()
  38 {
  39         removeChildren();
  40         if(m_dest)
  41                 delete m_dest;
  42 }
  43
  44 void GUITextInputMenu::removeChildren()
  45 {
  46         {
  47                 gui::IGUIElement *e = getElementFromId(256);
  48                 if(e != NULL)
  49                         e->remove();
  50         }
  51         {
  52                 gui::IGUIElement *e = getElementFromId(257);
  53                 if(e != NULL)
  54                         e->remove();
  55         }
  56 }
  57
  58 void GUITextInputMenu::regenerateGui(v2u32 screensize)
  59 {
  60         std::wstring text;
  61
  62         {
  63                 gui::IGUIElement *e = getElementFromId(256);
  64                 if(e != NULL)
  65                 {
  66                         text = e->getText();
  67                 }
  68                 else
  69                 {
  70                         text = m_initial_text;
  71                         m_initial_text = L"";
  72                 }
  73         }
  74
  75         /*
  76                 Remove stuff
  77         */
  78         removeChildren();
  79
  80         /*
  81                 Calculate new sizes and positions
  82         */
  83         core::rect<s32> rect(
  84                         screensize.X/2 - 580/2,
  85                         screensize.Y/2 - 300/2,
  86                         screensize.X/2 + 580/2,
  87                         screensize.Y/2 + 300/2
  88         );
  89
  90         DesiredRect = rect;
  91         recalculateAbsolutePosition(false);
  92
  93         v2s32 size = rect.getSize();
  94
  95         /*
  96                 Add stuff
  97         */
  98         {
  99                 core::rect<s32> rect(0, 0, 300, 30);
 100                 rect = rect + v2s32(size.X/2-300/2, size.Y/2-30/2-25);
 101                 gui::IGUIElement *e =
 102                 Environment->addEditBox(text.c_str(), rect, true, this, 256);
 103                 Environment->setFocus(e);
 104         }
 105         {
 106                 core::rect<s32> rect(0, 0, 140, 30);
 107                 rect = rect + v2s32(size.X/2-140/2, size.Y/2-30/2+25);
 108                 Environment->addButton(rect, this, 257, L"Proceed");
 109         }
 110 }
 111
 112 void GUITextInputMenu::drawMenu()
 113 {
 114         gui::IGUISkin* skin = Environment->getSkin();
 115         if (!skin)
 116                 return;
 117         video::IVideoDriver* driver = Environment->getVideoDriver();
 118
 119         video::SColor bgcolor(140,0,0,0);
 120         driver->draw2DRectangle(bgcolor, AbsoluteRect, &AbsoluteClippingRect);
 121
 122         gui::IGUIElement::draw();
 123 }
 124
 125 void GUITextInputMenu::acceptInput()
 126 {
 127         if(m_dest)
 128         {
 129                 gui::IGUIElement *e = getElementFromId(256);
 130                 if(e != NULL)
 131                 {
 132                         m_dest->gotText(e->getText());
 133                 }
 134                 delete m_dest;
 135                 m_dest = NULL;
 136         }
 137 }
 138
 139 bool GUITextInputMenu::OnEvent(const SEvent& event)
 140 {
 141         if(event.EventType==EET_KEY_INPUT_EVENT)
 142         {
 143                 if(event.KeyInput.Key==KEY_ESCAPE && event.KeyInput.PressedDown)
 144                 {
 145                         quitMenu();
 146                         return true;
 147                 }
 148                 if(event.KeyInput.Key==KEY_RETURN && event.KeyInput.PressedDown)
 149                 {
 150                         acceptInput();
 151                         quitMenu();
 152                         return true;
 153                 }
 154         }
 155         if(event.EventType==EET_GUI_EVENT)
 156         {
 157                 if(event.GUIEvent.EventType==gui::EGET_ELEMENT_FOCUS_LOST
 158                                 && isVisible())
 159                 {
 160                         if(!canTakeFocus(event.GUIEvent.Element))
 161                         {
 162                                 dstream<<"GUITextInputMenu: Not allowing focus change."
 163                                                 <<std::endl;
 164                                 // Returning true disables focus change
 165                                 return true;
 166                         }
 167                 }
 168                 if(event.GUIEvent.EventType==gui::EGET_BUTTON_CLICKED)
 169                 {
 170                         switch(event.GUIEvent.Caller->getID())
 171                         {
 172                         case 257:
 173                                 acceptInput();
 174                                 quitMenu();
 175                                 // quitMenu deallocates menu
 176                                 return true;
 177                         }
 178                 }
 179                 if(event.GUIEvent.EventType==gui::EGET_EDITBOX_ENTER)
 180                 {
 181                         switch(event.GUIEvent.Caller->getID())
 182                         {
 183                         case 256:
 184                                 acceptInput();
 185                                 quitMenu();
 186                                 // quitMenu deallocates menu
 187                                 return true;
 188                         }
 189                 }
 190         }
 191
 192         return Parent ? Parent->OnEvent(event) : false;
 193 }
 194