fceugx/source/ngc/gui/gui_window.cpp
2009-03-28 17:23:08 +00:00

406 lines
8.1 KiB
C++

/****************************************************************************
* FCE Ultra 0.98.12
* Nintendo Wii/Gamecube Port
*
* Tantric February 2009
*
* gui_window.cpp
*
* GUI class definitions
***************************************************************************/
#include "gui.h"
GuiWindow::GuiWindow()
{
width = 0;
height = 0;
focus = 0; // allow focus
}
GuiWindow::GuiWindow(int w, int h)
{
width = w;
height = h;
focus = 0; // allow focus
}
GuiWindow::~GuiWindow()
{
}
void GuiWindow::Append(GuiElement* e)
{
if (e == NULL)
return;
Remove(e);
_elements.push_back(e);
e->SetParent(this);
}
void GuiWindow::Insert(GuiElement* e, u32 index)
{
if (e == NULL || index > (_elements.size() - 1))
return;
Remove(e);
_elements.insert(_elements.begin()+index, e);
e->SetParent(this);
}
void GuiWindow::Remove(GuiElement* e)
{
if (e == NULL)
return;
for (u8 i = 0; i < _elements.size(); i++)
{
if(e == _elements.at(i))
{
_elements.erase(_elements.begin()+i);
break;
}
}
}
void GuiWindow::RemoveAll()
{
_elements.clear();
}
GuiElement* GuiWindow::GetGuiElementAt(u32 index) const
{
if (index >= _elements.size())
return NULL;
return _elements.at(index);
}
u32 GuiWindow::GetSize()
{
return _elements.size();
}
void GuiWindow::Draw()
{
if(_elements.size() == 0 || !this->IsVisible())
return;
for (u8 i = 0; i < _elements.size(); i++)
{
try { _elements.at(i)->Draw(); }
catch (exception& e) { }
}
this->UpdateEffects();
if(parentElement && state == STATE_DISABLED)
Menu_DrawRectangle(0,0,screenwidth,screenheight,(GXColor){0xbe, 0xca, 0xd5, 0x70},1);
}
void GuiWindow::ResetState()
{
if(state != STATE_DISABLED)
state = STATE_DEFAULT;
for (u8 i = 0; i < _elements.size(); i++)
{
try { _elements.at(i)->ResetState(); }
catch (exception& e) { }
}
}
void GuiWindow::SetState(int s)
{
state = s;
for (u8 i = 0; i < _elements.size(); i++)
{
try { _elements.at(i)->SetState(s); }
catch (exception& e) { }
}
}
void GuiWindow::SetVisible(bool v)
{
visible = v;
for (u8 i = 0; i < _elements.size(); i++)
{
try { _elements.at(i)->SetVisible(v); }
catch (exception& e) { }
}
}
void GuiWindow::SetFocus(int f)
{
focus = f;
if(f == 1)
this->MoveSelectionVert(1);
else
this->ResetState();
}
void GuiWindow::ChangeFocus(GuiElement* e)
{
if(parentElement)
return; // this is only intended for the main window
for (u8 i = 0; i < _elements.size(); i++)
{
if(e == _elements.at(i))
_elements.at(i)->SetFocus(1);
else if(_elements.at(i)->IsFocused() == 1)
_elements.at(i)->SetFocus(0);
}
}
void GuiWindow::ToggleFocus(GuiTrigger * t)
{
if(parentElement)
return; // this is only intended for the main window
int found = -1;
int newfocus = -1;
u8 i;
// look for currently in focus element
for (i = 0; i < _elements.size(); i++)
{
try
{
if(_elements.at(i)->IsFocused() == 1)
{
found = i;
break;
}
}
catch (exception& e) { }
}
// element with focus not found, try to give focus
if(found == -1)
{
for (i = 0; i < _elements.size(); i++)
{
try
{
if(_elements.at(i)->IsFocused() == 0 && _elements.at(i)->GetState() != STATE_DISABLED) // focus is possible (but not set)
{
_elements.at(i)->SetFocus(1); // give this element focus
break;
}
}
catch (exception& e) { }
}
}
// change focus
else if(t->wpad.btns_d & (WPAD_BUTTON_1 | WPAD_BUTTON_B | WPAD_CLASSIC_BUTTON_B)
|| t->pad.btns_d & PAD_BUTTON_B)
{
for (i = found; i < _elements.size(); i++)
{
try
{
if(_elements.at(i)->IsFocused() == 0 && _elements.at(i)->GetState() != STATE_DISABLED) // focus is possible (but not set)
{
newfocus = i;
_elements.at(i)->SetFocus(1); // give this element focus
_elements.at(found)->SetFocus(0); // disable focus on other element
break;
}
}
catch (exception& e) { }
}
if(newfocus == -1)
{
for (i = 0; i < found; i++)
{
try
{
if(_elements.at(i)->IsFocused() == 0 && _elements.at(i)->GetState() != STATE_DISABLED) // focus is possible (but not set)
{
_elements.at(i)->SetFocus(1); // give this element focus
_elements.at(found)->SetFocus(0); // disable focus on other element
break;
}
}
catch (exception& e) { }
}
}
}
}
int GuiWindow::GetSelected()
{
// find selected element
int found = -1;
for (u8 i = 0; i < _elements.size(); i++)
{
try
{
if(_elements.at(i)->GetState() == STATE_SELECTED)
{
found = i;
break;
}
}
catch (exception& e) { }
}
return found;
}
// set element to left/right as selected
// there's probably a more clever way to do this, but this way works
void GuiWindow::MoveSelectionHor(int dir)
{
int found = -1;
u16 left = 0;
u16 top = 0;
u8 i = 0;
int selected = this->GetSelected();
if(selected >= 0)
{
left = _elements.at(selected)->GetLeft();
top = _elements.at(selected)->GetTop();
}
// look for a button on the same row, to the left/right
for (i = 0; i < _elements.size(); i++)
{
try
{
if(_elements.at(i)->IsSelectable())
{
if(_elements.at(i)->GetLeft()*dir > left*dir && _elements.at(i)->GetTop() == top)
{
if(found == -1)
found = i;
else if(_elements.at(i)->GetLeft()*dir < _elements.at(found)->GetLeft()*dir)
found = i; // this is a better match
}
}
}
catch (exception& e) { }
}
if(found >= 0)
goto matchfound;
// match still not found, let's try the first button in the next row
for (i = 0; i < _elements.size(); i++)
{
try
{
if(_elements.at(i)->IsSelectable())
{
if(_elements.at(i)->GetTop()*dir > top*dir)
{
if(found == -1)
found = i;
else if(_elements.at(i)->GetTop()*dir < _elements.at(found)->GetTop()*dir)
found = i; // this is a better match
else if(_elements.at(i)->GetTop()*dir == _elements.at(found)->GetTop()*dir
&&
_elements.at(i)->GetLeft()*dir < _elements.at(found)->GetLeft()*dir)
found = i; // this is a better match
}
}
}
catch (exception& e) { }
}
// match found
matchfound:
if(found >= 0)
{
_elements.at(found)->SetState(STATE_SELECTED);
if(selected >= 0)
_elements.at(selected)->ResetState();
}
}
void GuiWindow::MoveSelectionVert(int dir)
{
int found = -1;
u16 left = 0;
u16 top = 0;
u8 i = 0;
int selected = this->GetSelected();
if(selected >= 0)
{
left = _elements.at(selected)->GetLeft();
top = _elements.at(selected)->GetTop();
}
// look for a button above/below, with the least horizontal difference
for (i = 0; i < _elements.size(); i++)
{
try
{
if(_elements.at(i)->IsSelectable())
{
if(_elements.at(i)->GetTop()*dir > top*dir)
{
if(found == -1)
found = i;
else if(_elements.at(i)->GetTop()*dir < _elements.at(found)->GetTop()*dir)
found = i; // this is a better match
else if(_elements.at(i)->GetTop()*dir == _elements.at(found)->GetTop()*dir
&&
abs(_elements.at(i)->GetLeft() - left) <
abs(_elements.at(found)->GetLeft() - left))
found = i;
}
}
}
catch (exception& e) { }
}
if(found >= 0)
goto matchfound;
// match found
matchfound:
if(found >= 0)
{
_elements.at(found)->SetState(STATE_SELECTED);
if(selected >= 0)
_elements.at(selected)->ResetState();
}
}
void GuiWindow::Update(GuiTrigger * t)
{
if(_elements.size() == 0 || (state == STATE_DISABLED && parentElement))
return;
for (u8 i = 0; i < _elements.size(); i++)
{
try { _elements.at(i)->Update(t); }
catch (exception& e) { }
}
this->ToggleFocus(t);
if(focus) // only send actions to this window if it's in focus
{
// pad/joystick navigation
if(t->Right())
this->MoveSelectionHor(1);
else if(t->Left())
this->MoveSelectionHor(-1);
else if(t->Down())
this->MoveSelectionVert(1);
else if(t->Up())
this->MoveSelectionVert(-1);
}
if(updateCB)
updateCB(this);
}