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/*
Copyright (C) 2005 Kimmo Pekkola
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 (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 General Public License for more details.
You should have received a copy of the GNU 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 "StdAfx.h"
#include "MeterButton.h"
#include "Measure.h"
#include "Rainmeter.h"
#include "Error.h"
#include "../Common/Gfx/Canvas.h"
using namespace Gdiplus;
enum BUTTON_STATE
{
BUTTON_STATE_NORMAL,
BUTTON_STATE_DOWN,
BUTTON_STATE_HOVER
};
MeterButton::MeterButton(Skin* skin, const WCHAR* name) : Meter(skin, name),
m_Image(L"ButtonImage", nullptr, true, skin),
m_NeedsReload(false),
m_Bitmaps(),
m_State(BUTTON_STATE_NORMAL),
m_Clicked(false),
m_Focus(false)
{
}
MeterButton::~MeterButton()
{
for (int i = 0; i < BUTTON_FRAMES; ++i)
{
delete m_Bitmaps[i];
}
}
/*
** Load the image and get the dimensions of the meter from it.
**
*/
void MeterButton::Initialize()
{
Meter::Initialize();
for (int i = 0; i < BUTTON_FRAMES; ++i)
{
delete m_Bitmaps[i];
m_Bitmaps[i] = nullptr;
}
// Load the bitmaps if defined
if (!m_ImageName.empty())
{
m_Image.LoadImage(m_ImageName, m_NeedsReload);
if (m_Image.IsLoaded())
{
Bitmap* bitmap = m_Image.GetImage();
int bitmapW = bitmap->GetWidth();
int bitmapH = bitmap->GetHeight();
m_W = bitmapW;
m_H = bitmapH;
if (m_H > m_W)
{
m_H /= BUTTON_FRAMES;
}
else
{
m_W /= BUTTON_FRAMES;
}
// Separate the frames
for (int i = 0; i < BUTTON_FRAMES; ++i)
{
Bitmap bitmapPart(m_W, m_H, PixelFormat32bppPARGB);
Graphics graphics(&bitmapPart);
Rect r(0, 0, m_W, m_H);
if (bitmapH > bitmapW)
{
graphics.DrawImage(bitmap, r, 0, m_H * i, m_W, m_H, UnitPixel);
}
else
{
graphics.DrawImage(bitmap, r, m_W * i, 0, m_W, m_H, UnitPixel);
}
m_Bitmaps[i] = new CachedBitmap(&bitmapPart, &graphics);
}
m_W += GetWidthPadding();
m_H += GetHeightPadding();
}
}
else if (m_Image.IsLoaded())
{
m_Image.DisposeImage();
}
}
/*
** Read the options specified in the ini file.
**
*/
void MeterButton::ReadOptions(ConfigParser& parser, const WCHAR* section)
{
// Store the current values so we know if the image needs to be updated
std::wstring oldImageName = m_ImageName;
int oldW = m_W;
int oldH = m_H;
Meter::ReadOptions(parser, section);
m_ImageName = parser.ReadString(section, L"ButtonImage", L"");
if (!m_ImageName.empty())
{
// Read tinting options
m_Image.ReadOptions(parser, section);
}
else
{
m_Image.ClearOptionFlags();
}
m_Command = parser.ReadString(section, L"ButtonCommand", L"", false);
if (m_Initialized)
{
m_NeedsReload = (wcscmp(oldImageName.c_str(), m_ImageName.c_str()) != 0);
if (m_NeedsReload ||
m_Image.IsOptionsChanged())
{
Initialize(); // Reload the image
}
else
{
// Reset to old dimensions
m_W = oldW;
m_H = oldH;
}
}
}
/*
** Updates the value(s) from the measures.
**
*/
bool MeterButton::Update()
{
return Meter::Update();
}
/*
** Draws the meter on the double buffer
**
*/
bool MeterButton::Draw(Gfx::Canvas& canvas)
{
if (!Meter::Draw(canvas)) return false;
if (m_Bitmaps[m_State] == nullptr) return false; // Unable to continue
Gdiplus::Graphics& graphics = canvas.BeginGdiplusContext();
Gdiplus::Rect meterRect = GetMeterRectPadding();
// Blit the image
graphics.DrawCachedBitmap(m_Bitmaps[m_State], meterRect.X, meterRect.Y);
canvas.EndGdiplusContext();
return true;
}
/*
** Overridden method. The meters need not to be bound on anything
**
*/
void MeterButton::BindMeasures(ConfigParser& parser, const WCHAR* section)
{
BindPrimaryMeasure(parser, section, true);
}
/*
** Checks if the given point is inside the button.
**
*/
bool MeterButton::HitTest2(int px, int py)
{
int x = GetX();
int y = GetY();
if (m_MouseOver &&
px >= x && px < x + m_W &&
py >= y && py < y + m_H)
{
if (m_SolidColor.GetA() != 0 || m_SolidColor2.GetA() != 0)
{
return true;
}
// Check transparent pixels
if (m_Image.IsLoaded())
{
Rect meterRect = GetMeterRectPadding();
int ix = meterRect.Width * m_State;
px = px - meterRect.X + ix;
py = py - meterRect.Y;
if (px >= ix && px < ix + meterRect.Width &&
py >= 0 && py < meterRect.Height)
{
Color color;
Status status = m_Image.GetImage()->GetPixel(px, py, &color);
if (status != Ok || color.GetA() != 0)
{
return true;
}
}
}
else
{
return true;
}
}
return false;
}
bool MeterButton::MouseUp(POINT pos, bool execute)
{
if (m_State == BUTTON_STATE_DOWN)
{
if (execute && m_Clicked && m_Focus && HitTest2(pos.x, pos.y))
{
GetRainmeter().ExecuteCommand(m_Command.c_str(), m_Skin);
}
m_State = BUTTON_STATE_NORMAL;
m_Clicked = false;
return true;
}
m_Clicked = false;
return false;
}
bool MeterButton::MouseDown(POINT pos)
{
if (m_Focus && HitTest2(pos.x, pos.y))
{
m_State = BUTTON_STATE_DOWN;
m_Clicked = true;
return true;
}
return false;
}
bool MeterButton::MouseMove(POINT pos)
{
if (m_Clicked)
{
if (HitTest2(pos.x, pos.y))
{
if (m_State == BUTTON_STATE_NORMAL)
{
m_State = BUTTON_STATE_DOWN;
return true;
}
}
else
{
// If the left button is not down anymore the clicked state needs to be set false
if (!IsLButtonDown())
{
m_Clicked = false;
}
if (m_State == BUTTON_STATE_DOWN)
{
m_State = BUTTON_STATE_NORMAL;
return true;
}
}
}
else
{
if (HitTest2(pos.x, pos.y))
{
if (m_State == BUTTON_STATE_NORMAL)
{
m_State = BUTTON_STATE_HOVER;
return true;
}
}
else
{
if (m_State == BUTTON_STATE_HOVER)
{
m_State = BUTTON_STATE_NORMAL;
return true;
}
}
}
return false;
}
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