minetest/src/gui/guiButtonImage.cpp

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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "guiButtonImage.h"
#include "client/guiscalingfilter.h"
#include "debug.h"
#include "IGUIEnvironment.h"
#include "IGUIImage.h"
#include "IVideoDriver.h"
#include "StyleSpec.h"
using namespace irr;
using namespace gui;
GUIButtonImage::GUIButtonImage(gui::IGUIEnvironment *environment,
gui::IGUIElement *parent, s32 id, core::rect<s32> rectangle, bool noclip)
: GUIButton (environment, parent, id, rectangle, noclip)
{
m_image = Environment->addImage(
core::rect<s32>(0,0,rectangle.getWidth(),rectangle.getHeight()), this);
m_image->setScaleImage(isScalingImage());
sendToBack(m_image);
}
bool GUIButtonImage::OnEvent(const SEvent& event)
{
bool result = GUIButton::OnEvent(event);
EGUI_BUTTON_IMAGE_STATE imageState = getImageState(isPressed(), m_foreground_images);
video::ITexture *texture = m_foreground_images[(u32)imageState].Texture;
if (texture != nullptr)
{
m_image->setImage(texture);
}
m_image->setVisible(texture != nullptr);
return result;
}
void GUIButtonImage::setForegroundImage(EGUI_BUTTON_IMAGE_STATE state,
video::ITexture *image, const core::rect<s32> &sourceRect)
{
if (state >= EGBIS_COUNT)
return;
if (image)
image->grab();
u32 stateIdx = (u32)state;
if (m_foreground_images[stateIdx].Texture)
m_foreground_images[stateIdx].Texture->drop();
m_foreground_images[stateIdx].Texture = image;
m_foreground_images[stateIdx].SourceRect = sourceRect;
EGUI_BUTTON_IMAGE_STATE imageState = getImageState(isPressed(), m_foreground_images);
if (imageState == stateIdx)
m_image->setImage(image);
}
void GUIButtonImage::setForegroundImage(video::ITexture *image)
{
setForegroundImage(gui::EGBIS_IMAGE_UP, image);
}
void GUIButtonImage::setForegroundImage(video::ITexture *image, const core::rect<s32> &pos)
{
setForegroundImage(gui::EGBIS_IMAGE_UP, image, pos);
}
void GUIButtonImage::setPressedForegroundImage(video::ITexture *image)
{
setForegroundImage(gui::EGBIS_IMAGE_DOWN, image);
}
void GUIButtonImage::setPressedForegroundImage(video::ITexture *image, const core::rect<s32> &pos)
{
setForegroundImage(gui::EGBIS_IMAGE_DOWN, image, pos);
}
void GUIButtonImage::setHoveredForegroundImage(video::ITexture *image)
{
setForegroundImage(gui::EGBIS_IMAGE_UP_MOUSEOVER, image);
setForegroundImage(gui::EGBIS_IMAGE_UP_FOCUSED_MOUSEOVER, image);
}
void GUIButtonImage::setHoveredForegroundImage(video::ITexture *image, const core::rect<s32> &pos)
{
setForegroundImage(gui::EGBIS_IMAGE_UP_MOUSEOVER, image, pos);
setForegroundImage(gui::EGBIS_IMAGE_UP_FOCUSED_MOUSEOVER, image, pos);
}
void GUIButtonImage::setFromStyle(const StyleSpec &style, ISimpleTextureSource *tsrc)
{
GUIButton::setFromStyle(style, tsrc);
video::IVideoDriver *driver = Environment->getVideoDriver();
const core::position2di buttonCenter(AbsoluteRect.getCenter());
core::position2d<s32> geom(buttonCenter);
if (style.isNotDefault(StyleSpec::FGIMG)) {
video::ITexture *texture = style.getTexture(StyleSpec::FGIMG, tsrc);
setForegroundImage(guiScalingImageButton(driver, texture, geom.X, geom.Y));
setScaleImage(true);
}
if (style.isNotDefault(StyleSpec::FGIMG_HOVERED)) {
video::ITexture *hovered_texture = style.getTexture(StyleSpec::FGIMG_HOVERED, tsrc);
setHoveredForegroundImage(guiScalingImageButton(driver, hovered_texture, geom.X, geom.Y));
setScaleImage(true);
}
if (style.isNotDefault(StyleSpec::FGIMG_PRESSED)) {
video::ITexture *pressed_texture = style.getTexture(StyleSpec::FGIMG_PRESSED, tsrc);
setPressedForegroundImage(guiScalingImageButton(driver, pressed_texture, geom.X, geom.Y));
setScaleImage(true);
}
}
void GUIButtonImage::setScaleImage(bool scaleImage)
{
GUIButton::setScaleImage(scaleImage);
m_image->setScaleImage(scaleImage);
}
GUIButtonImage *GUIButtonImage::addButton(IGUIEnvironment *environment,
const core::rect<s32> &rectangle, IGUIElement *parent, s32 id,
const wchar_t *text, const wchar_t *tooltiptext)
{
GUIButtonImage *button = new GUIButtonImage(environment,
parent ? parent : environment->getRootGUIElement(), id, rectangle);
if (text)
button->setText(text);
if (tooltiptext)
button->setToolTipText(tooltiptext);
button->drop();
return button;
}