textpreview.cpp

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/*
 * The ManaPlus Client
 * Copyright (C) 2006-2009 The Mana World Development Team
 * Copyright (C) 2009-2010 The Mana Developers
 * Copyright (C) 2011-2019 The ManaPlus Developers
 * Copyright (C) 2019-2021 Andrei Karas
 *
 * This file is part of The ManaPlus Client.
 *
 * This program 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
 * any later version.
 *
 * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "gui/widgets/textpreview.h"
 
#include "settings.h"
 
#include "gui/gui.h"
#include "gui/skin.h"
 
#include "gui/fonts/font.h"
 
#include "render/graphics.h"
 
#include "debug.h"
 
int TextPreview::instances = 0;
float TextPreview::mAlpha = 1.0;
Skin *TextPreview::mSkin = nullptr;
 
TextPreview::TextPreview(const Widget2 *const widget,
 const std::string &text) :
 Widget(widget),
 mFont(gui->getFont()),
 mText(text),
 mTextColor(&getThemeColor(ThemeColorId::TEXT, 255U)),
 mTextColor2(&getThemeColor(ThemeColorId::TEXT_OUTLINE, 255U)),
 mBGColor(&getThemeColor(ThemeColorId::BACKGROUND, 255U)),
 mTextBGColor(nullptr),
 mPadding(0),
 mTextAlpha(false),
 mOpaque(Opaque_false),
 mShadow(false),
 mOutline(false)
{
 mAllowLogic = false;
 if (instances == 0)
 {
 if (theme != nullptr)
 {
 mSkin = theme->load("textpreview.xml",
 "",
 true,
 Theme::getThemePath());
 }
 }
 
 instances++;
 
 if (mSkin != nullptr)
 mPadding = mSkin->getOption("padding", 0);
 
 adjustSize();
}
 
TextPreview::~TextPreview()
{
 if (gui != nullptr)
 gui->removeDragged(this);
 
 instances--;
 
 if (instances == 0)
 {
 if (theme != nullptr)
 theme->unload(mSkin);
 }
}
 
void TextPreview::draw(Graphics *const graphics)
{
 if (mFont == nullptr)
 return;
 
 BLOCK_START("TextPreview::draw")
 if (settings.guiAlpha != mAlpha)
 mAlpha = settings.guiAlpha;
 
 const int intAlpha = CAST_S32(mAlpha * 255.0F);
 const int alpha = mTextAlpha ? intAlpha : 255;
 
 if (mOpaque == Opaque_true)
 {
 graphics->setColor(Color(CAST_S32(mBGColor->r),
 CAST_S32(mBGColor->g),
 CAST_S32(mBGColor->b),
 CAST_S32(mAlpha * 255.0F)));
 graphics->fillRectangle(Rect(0, 0,
 mDimension.width, mDimension.height));
 }
 
 if (mTextBGColor != nullptr)
 {
 const int x = mFont->getWidth(mText) + 1
 + 2 * ((mOutline || mShadow) ? 1 :0);
 const int y = mFont->getHeight() + 1
 + 2 * ((mOutline || mShadow) ? 1 : 0);
 graphics->setColor(Color(CAST_S32(mTextBGColor->r),
 CAST_S32(mTextBGColor->g),
 CAST_S32(mTextBGColor->b),
 intAlpha));
 graphics->fillRectangle(Rect(mPadding, mPadding, x, y));
 }
 
 Color color1(mTextColor->r, mTextColor->g, mTextColor->b, alpha);
 
 if (mOutline && mTextColor != mTextColor2)
 {
 const Color &color2 = getThemeColor(ThemeColorId::OUTLINE, 255U);
 mFont->drawString(graphics,
 color1,
 color2,
 mText,
 mPadding + 1, mPadding + 1);
 }
 else
 {
 Color color2(mTextColor2->r, mTextColor2->g, mTextColor2->b, alpha);
 mFont->drawString(graphics,
 color1,
 color2,
 mText,
 mPadding + 1, mPadding + 1);
 }
 
 BLOCK_END("TextPreview::draw")
}
 
void TextPreview::safeDraw(Graphics *const graphics)
{
 TextPreview::draw(graphics);
}
 
void TextPreview::adjustSize()
{
 setHeight(getFont()->getHeight() + 2 * mPadding);
}