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forked from 0ad/0ad
0ad/source/gui/IGUITextOwner.cpp
elexis e1014aad3b Use CGUI& instead of CGUI* so that the 50+ users stop wondering whether or not that is null and can't even be mistaken to add redundant null checks preemptively.
Remove the remaining of such checks after d3e56f0f57 removed 21 of them
already.
2c47fbd66a initialized the pointer at construction time rather than at
random conditional events later.

Differential Revision: https://code.wildfiregames.com/D2205
Comments By: Vladislav, wraitii
Tested on: gcc 9.1.0, clang 8.0.1

This was SVN commit r22741.
2019-08-21 10:12:33 +00:00

150 lines
4.0 KiB
C++

/* Copyright (C) 2019 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. 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 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#include "precompiled.h"
#include "IGUITextOwner.h"
#include "gui/GUI.h"
#include "gui/scripting/JSInterface_IGUITextOwner.h"
#include <math.h>
IGUITextOwner::IGUITextOwner(CGUI& pGUI)
: IGUIObject(pGUI), m_GeneratedTextsValid(false)
{
}
IGUITextOwner::~IGUITextOwner()
{
}
void IGUITextOwner::CreateJSObject()
{
IGUIObject::CreateJSObject();
JSI_IGUITextOwner::RegisterScriptFunctions(
m_pGUI.GetScriptInterface()->GetContext(), m_JSObject);
}
CGUIText& IGUITextOwner::AddText()
{
m_GeneratedTexts.emplace_back();
return m_GeneratedTexts.back();
}
CGUIText& IGUITextOwner::AddText(const CGUIString& Text, const CStrW& Font, const float& Width, const float& BufferZone, const IGUIObject* pObject)
{
// Avoids a move constructor
m_GeneratedTexts.emplace_back(m_pGUI, Text, Font, Width, BufferZone, pObject);
return m_GeneratedTexts.back();
}
void IGUITextOwner::HandleMessage(SGUIMessage& Message)
{
switch (Message.type)
{
case GUIM_SETTINGS_UPDATED:
// Everything that can change the visual appearance.
// it is assumed that the text of the object will be dependent on
// these. Although that is not certain, but one will have to manually
// change it and disregard this function.
// TODO Gee: (2004-09-07) Make sure this is all options that can affect the text.
if (Message.value == "size" || Message.value == "z" ||
Message.value == "absolute" || Message.value == "caption" ||
Message.value == "font" || Message.value == "textcolor" ||
Message.value == "text_align" || Message.value == "text_valign" ||
Message.value == "buffer_zone")
{
m_GeneratedTextsValid = false;
}
break;
default:
break;
}
}
void IGUITextOwner::UpdateCachedSize()
{
// If an ancestor's size changed, this will let us intercept the change and
// update our text positions
IGUIObject::UpdateCachedSize();
m_GeneratedTextsValid = false;
}
void IGUITextOwner::DrawText(size_t index, const CGUIColor& color, const CPos& pos, float z, const CRect& clipping)
{
if (!m_GeneratedTextsValid)
{
SetupText();
m_GeneratedTextsValid = true;
}
ENSURE(index < m_GeneratedTexts.size() && "Trying to draw a Text Index within a IGUITextOwner that doesn't exist");
m_GeneratedTexts.at(index).Draw(m_pGUI, color, pos, z, clipping);
}
void IGUITextOwner::CalculateTextPosition(CRect& ObjSize, CPos& TextPos, CGUIText& Text)
{
EVAlign valign;
GUI<EVAlign>::GetSetting(this, "text_valign", valign);
// The horizontal Alignment is now computed in GenerateText in order to not have to
// loop through all of the TextCall objects again.
TextPos.x = ObjSize.left;
switch (valign)
{
case EVAlign_Top:
TextPos.y = ObjSize.top;
break;
case EVAlign_Center:
// Round to integer pixel values, else the fonts look awful
TextPos.y = floorf(ObjSize.CenterPoint().y - Text.GetSize().cy / 2.f);
break;
case EVAlign_Bottom:
TextPos.y = ObjSize.bottom - Text.GetSize().cy;
break;
default:
debug_warn(L"Broken EVAlign in CButton::SetupText()");
break;
}
}
CSize IGUITextOwner::CalculateTextSize()
{
if (!m_GeneratedTextsValid)
{
SetupText();
m_GeneratedTextsValid = true;
}
if (m_GeneratedTexts.empty())
return CSize();
// GUI Object types that use multiple texts may override this function.
return m_GeneratedTexts[0].GetSize();
}
bool IGUITextOwner::MouseOverIcon()
{
return false;
}