mirror of
https://github.com/chibicitiberiu/rainmeter-studio.git
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367 lines
9.2 KiB
C++
367 lines
9.2 KiB
C++
/*
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Copyright (C) 2002 Kimmo Pekkola
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "StdAfx.h"
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#include "MeterImage.h"
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#include "Measure.h"
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#include "Error.h"
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#include "Rainmeter.h"
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#include "System.h"
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#include "../Common/PathUtil.h"
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#include "../Common/Gfx/Canvas.h"
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using namespace Gdiplus;
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/*
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** The constructor
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**
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*/
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MeterImage::MeterImage(MeterWindow* meterWindow, const WCHAR* name) : Meter(meterWindow, name),
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m_Image(L"ImageName", nullptr, false, meterWindow),
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m_NeedsRedraw(false),
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m_DrawMode(DRAWMODE_NONE),
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m_ScaleMargins()
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{
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}
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/*
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** The destructor
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**
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*/
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MeterImage::~MeterImage()
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{
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}
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/*
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** Load the image and get the dimensions of the meter from it.
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**
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*/
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void MeterImage::Initialize()
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{
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Meter::Initialize();
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if (m_Measures.empty() && !m_DynamicVariables && !m_ImageName.empty())
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{
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m_ImageNameResult = m_ImageName;
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LoadImage(m_ImageName, true);
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}
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}
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/*
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** Loads the image from disk
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**
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*/
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void MeterImage::LoadImage(const std::wstring& imageName, bool bLoadAlways)
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{
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m_Image.LoadImage(imageName, bLoadAlways);
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if (m_Image.IsLoaded())
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{
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// Calculate size of the meter
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Bitmap* bitmap = m_Image.GetImage();
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int imageW = bitmap->GetWidth();
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int imageH = bitmap->GetHeight();
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if (m_WDefined)
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{
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if (!m_HDefined)
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{
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m_H = (imageW == 0) ? 0 : (m_DrawMode == DRAWMODE_TILE) ? imageH : m_W * imageH / imageW;
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m_H += GetHeightPadding();
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}
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}
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else
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{
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if (m_HDefined)
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{
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m_W = (imageH == 0) ? 0 : (m_DrawMode == DRAWMODE_TILE) ? imageW : m_H * imageW / imageH;
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m_W += GetWidthPadding();
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}
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else
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{
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m_W = imageW + GetWidthPadding();
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m_H = imageH + GetHeightPadding();
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}
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}
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}
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}
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/*
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** Read the options specified in the ini file.
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**
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*/
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void MeterImage::ReadOptions(ConfigParser& parser, const WCHAR* section)
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{
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Meter::ReadOptions(parser, section);
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m_ImageName = parser.ReadString(section, L"ImageName", L"");
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int mode = parser.ReadInt(section, L"Tile", 0);
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if (mode != 0)
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{
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m_DrawMode = DRAWMODE_TILE;
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}
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else
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{
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mode = parser.ReadInt(section, L"PreserveAspectRatio", 0);
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switch (mode)
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{
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case 0:
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m_DrawMode = DRAWMODE_NONE;
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break;
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case 1:
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default:
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m_DrawMode = DRAWMODE_KEEPRATIO;
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break;
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case 2:
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m_DrawMode = DRAWMODE_KEEPRATIOANDCROP;
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break;
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}
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}
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static const RECT defMargins = {0};
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m_ScaleMargins = parser.ReadRECT(section, L"ScaleMargins", defMargins);
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// Deprecated!
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std::wstring path = parser.ReadString(section, L"Path", L"");
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PathUtil::AppendBacklashIfMissing(path);
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// Read tinting options
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m_Image.ReadOptions(parser, section, path.c_str());
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if (m_Initialized && m_Measures.empty() && !m_DynamicVariables)
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{
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Initialize();
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m_NeedsRedraw = true;
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}
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}
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/*
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** Updates the value(s) from the measures.
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**
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*/
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bool MeterImage::Update()
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{
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if (Meter::Update())
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{
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if (!m_Measures.empty() || m_DynamicVariables)
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{
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// Store the current values so we know if the image needs to be updated
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std::wstring oldResult = m_ImageNameResult;
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if (!m_Measures.empty()) // read from the measures
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{
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if (m_ImageName.empty())
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{
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m_ImageNameResult = m_Measures[0]->GetStringOrFormattedValue(AUTOSCALE_OFF, 1, 0, false);
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}
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else
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{
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m_ImageNameResult = m_ImageName;
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if (!ReplaceMeasures(m_ImageNameResult, AUTOSCALE_OFF))
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{
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// ImageName doesn't contain any measures, so use the result of MeasureName.
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m_ImageNameResult = m_Measures[0]->GetStringOrFormattedValue(AUTOSCALE_OFF, 1, 0, false);
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}
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}
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}
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else // read from the skin
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{
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m_ImageNameResult = m_ImageName;
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}
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LoadImage(m_ImageNameResult, (wcscmp(oldResult.c_str(), m_ImageNameResult.c_str()) != 0));
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return true;
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}
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else if (m_NeedsRedraw)
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{
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m_NeedsRedraw = false;
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return true;
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}
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}
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return false;
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}
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/*
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** Draws the meter on the double buffer
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**
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*/
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bool MeterImage::Draw(Gfx::Canvas& canvas)
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{
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if (!Meter::Draw(canvas)) return false;
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if (m_Image.IsLoaded())
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{
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// Copy the image over the doublebuffer
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Bitmap* drawBitmap = m_Image.GetImage();
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int imageW = drawBitmap->GetWidth();
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int imageH = drawBitmap->GetHeight();
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if (imageW == 0 || imageH == 0 || m_W == 0 || m_H == 0) return true;
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Gdiplus::Rect meterRect = GetMeterRectPadding();
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int drawW = meterRect.Width;
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int drawH = meterRect.Height;
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if (drawW == imageW && drawH == imageH &&
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m_ScaleMargins.left == 0 && m_ScaleMargins.top == 0 && m_ScaleMargins.right == 0 && m_ScaleMargins.bottom == 0)
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{
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canvas.DrawBitmap(drawBitmap, Rect(meterRect.X, meterRect.Y, drawW, drawH), Rect(0, 0, imageW, imageH));
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}
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else if (m_DrawMode == DRAWMODE_TILE)
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{
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Gdiplus::Graphics& graphics = canvas.BeginGdiplusContext();
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ImageAttributes imgAttr;
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imgAttr.SetWrapMode(WrapModeTile);
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Rect r(meterRect.X, meterRect.Y, drawW, drawH);
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graphics.DrawImage(drawBitmap, r, 0, 0, drawW, drawH, UnitPixel, &imgAttr);
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canvas.EndGdiplusContext();
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}
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else if (m_DrawMode == DRAWMODE_KEEPRATIO || m_DrawMode == DRAWMODE_KEEPRATIOANDCROP)
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{
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int cropX = 0;
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int cropY = 0;
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int cropW = imageW;
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int cropH = imageH;
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if (m_WDefined && m_HDefined)
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{
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REAL imageRatio = imageW / (REAL)imageH;
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REAL meterRatio = meterRect.Width / (REAL)meterRect.Height;
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if (imageRatio != meterRatio)
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{
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if (m_DrawMode == DRAWMODE_KEEPRATIO)
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{
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if (imageRatio > meterRatio)
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{
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drawH = meterRect.Width * imageH / imageW;
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meterRect.Y += (meterRect.Height - drawH) / 2;
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}
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else
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{
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drawW = meterRect.Height * imageW / imageH;
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meterRect.X += (meterRect.Width - drawW) / 2;
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}
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}
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else
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{
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if (imageRatio > meterRatio)
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{
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cropW = (int)(imageH * meterRatio);
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cropX = (imageW - cropW) / 2;
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}
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else
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{
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cropH = (int)(imageW / meterRatio);
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cropY = (imageH - cropH) / 2;
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}
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}
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}
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}
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Rect r(meterRect.X, meterRect.Y, drawW, drawH);
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canvas.DrawBitmap(drawBitmap, r, Rect(cropX, cropY, cropW, cropH));
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}
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else
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{
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const RECT& m = m_ScaleMargins;
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if (m.top > 0)
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{
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if (m.left > 0)
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{
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// Top-Left
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Rect r(meterRect.X, meterRect.Y, m.left, m.top);
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canvas.DrawBitmap(drawBitmap, r, Rect(0, 0, m.left, m.top));
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}
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// Top
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Rect r(meterRect.X + m.left, meterRect.Y, drawW - m.left - m.right, m.top);
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canvas.DrawBitmap(drawBitmap, r, Rect(m.left, 0, imageW - m.left - m.right, m.top));
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if (m.right > 0)
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{
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// Top-Right
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Rect r(meterRect.X + drawW - m.right, meterRect.Y, m.right, m.top);
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canvas.DrawBitmap(drawBitmap, r, Rect(imageW - m.right, 0, m.right, m.top));
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}
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}
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if (m.left > 0)
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{
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// Left
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Rect r(meterRect.X, meterRect.Y + m.top, m.left, drawH - m.top - m.bottom);
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canvas.DrawBitmap(drawBitmap, r, Rect(0, m.top, m.left, imageH - m.top - m.bottom));
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}
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// Center
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Rect r(meterRect.X + m.left, meterRect.Y + m.top, drawW - m.left - m.right, drawH - m.top - m.bottom);
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canvas.DrawBitmap(drawBitmap, r, Rect(m.left, m.top, imageW - m.left - m.right, imageH - m.top - m.bottom));
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if (m.right > 0)
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{
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// Right
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Rect r(meterRect.X + drawW - m.right, meterRect.Y + m.top, m.right, drawH - m.top - m.bottom);
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canvas.DrawBitmap(drawBitmap, r, Rect(imageW - m.right, m.top, m.right, imageH - m.top - m.bottom));
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}
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if (m.bottom > 0)
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{
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if (m.left > 0)
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{
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// Bottom-Left
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Rect r(meterRect.X, meterRect.Y + drawH - m.bottom, m.left, m.bottom);
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canvas.DrawBitmap(drawBitmap, r, Rect(0, imageH - m.bottom, m.left, m.bottom));
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}
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// Bottom
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Rect r(meterRect.X + m.left, meterRect.Y + drawH - m.bottom, drawW - m.left - m.right, m.bottom);
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canvas.DrawBitmap(drawBitmap, r, Rect(m.left, imageH - m.bottom, imageW - m.left - m.right, m.bottom));
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if (m.right > 0)
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{
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// Bottom-Right
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Rect r(meterRect.X + drawW - m.right, meterRect.Y + drawH - m.bottom, m.right, m.bottom);
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canvas.DrawBitmap(drawBitmap, r, Rect(imageW - m.right, imageH - m.bottom, m.right, m.bottom));
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}
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}
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}
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}
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return true;
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}
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/*
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** Overridden method. The Image meters need not to be bound on anything
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**
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*/
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void MeterImage::BindMeasures(ConfigParser& parser, const WCHAR* section)
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{
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if (BindPrimaryMeasure(parser, section, true))
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{
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BindSecondaryMeasures(parser, section);
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}
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}
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