https://git.reactos.org/?p=reactos.git;a=commitdiff;h=0ed04e36406fc24b3d08e…
commit 0ed04e36406fc24b3d08e795a89962c253226f1f
Author: Wu Haotian <rigoligo03(a)gmail.com>
AuthorDate: Sun Apr 4 04:04:06 2021 +0800
Commit: Stanislav Motylkov <x86corez(a)gmail.com>
CommitDate: Wed Oct 13 19:14:29 2021 +0300
[TASKMGR] Make performance graph grid scroll (#3581)
The grids are now rolling along with performance graphs.
---
base/applications/taskmgr/graphctl.c | 93 ++++++++++++++++++++++++++----------
base/applications/taskmgr/graphctl.h | 4 ++
2 files changed, 72 insertions(+), 25 deletions(-)
diff --git a/base/applications/taskmgr/graphctl.c b/base/applications/taskmgr/graphctl.c
index 4d62ba4aedf..ee7a9f844f2 100644
--- a/base/applications/taskmgr/graphctl.c
+++ b/base/applications/taskmgr/graphctl.c
@@ -1,23 +1,9 @@
/*
- * ReactOS Task Manager
- *
- * graphctl.c
- *
- * Copyright (C) 2002 Robert Dickenson <robd(a)reactos.org>
- *
- * 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.
+ * PROJECT: ReactOS Task Manager
+ * LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
+ * PURPOSE: Graph plotting controls
+ * COPYRIGHT: Copyright 2002 Robert Dickenson <robd(a)reactos.org>
+ * Copyright 2021 Wu Haotian <rigoligo03(a)gmail.com>
*/
#include "precomp.h"
@@ -76,6 +62,14 @@ static void GraphCtrl_Init(TGraphCtrl* this)
this->m_nHalfShiftPixels = this->m_nShiftPixels / 2; /* protected */
this->m_nPlotShiftPixels = this->m_nShiftPixels + this->m_nHalfShiftPixels; /* protected */
+ /* Set how big the grid boxes are */
+ this->m_nGridXPixels = 12;
+ this->m_nGridYPixels = 12;
+
+ /* Task manager should scroll grid with the graph. This variable contains the */
+ /* amount of pixels the grid paint origin should shift to left */
+ this->m_nGridOffsetPixels = 0;
+
/* background, grid and data colors */
/* these are public variables and can be set directly */
this->m_crBackColor = RGB( 0, 0, 0); /* see also SetBackgroundColor */
@@ -251,17 +245,19 @@ void GraphCtrl_InvalidateCtrl(TGraphCtrl* this, BOOL bResize)
/* LineTo(m_dcGrid, m_rectPlot.left, m_rectPlot.top); */
/* draw the horizontal axis */
- for (i = this->m_rectPlot.top; i < this->m_rectPlot.bottom; i += 12)
+ for (i = this->m_rectPlot.top; i <= this->m_rectPlot.bottom; i += this->m_nGridYPixels)
{
- MoveToEx(this->m_dcGrid, this->m_rectPlot.left, this->m_rectPlot.top + i, NULL);
- LineTo(this->m_dcGrid, this->m_rectPlot.right, this->m_rectPlot.top + i);
+ MoveToEx(this->m_dcGrid, this->m_rectPlot.left, i, NULL);
+ LineTo(this->m_dcGrid, this->m_rectPlot.right, i);
}
/* draw the vertical axis */
- for (i = this->m_rectPlot.left; i < this->m_rectPlot.right; i += 12)
+ /* In order to keep grid position uniform when resizing, vertical axis should be */
+ /* drawn from right to left */
+ for (i = this->m_rectPlot.right - this->m_nGridOffsetPixels; i >= this->m_rectPlot.left; i -= this->m_nGridXPixels)
{
- MoveToEx(this->m_dcGrid, this->m_rectPlot.left + i, this->m_rectPlot.bottom, NULL);
- LineTo(this->m_dcGrid, this->m_rectPlot.left + i, this->m_rectPlot.top);
+ MoveToEx(this->m_dcGrid, i, this->m_rectPlot.bottom, NULL);
+ LineTo(this->m_dcGrid, i, this->m_rectPlot.top);
}
SelectObject(this->m_dcGrid, oldPen);
@@ -342,6 +338,7 @@ void GraphCtrl_InvalidateCtrl(TGraphCtrl* this, BOOL bResize)
DeleteObject(this->m_bitmapPlot);
this->m_bitmapPlot = CreateCompatibleBitmap(dc, this->m_nClientWidth, this->m_nClientHeight);
SelectObject(this->m_dcPlot, this->m_bitmapPlot);
+ GraphCtrl_DrawPoint(this);
}
}
@@ -366,6 +363,7 @@ double GraphCtrl_AppendPoint(TGraphCtrl* this,
this->m_dCurrentPosition[1] = dNewPoint1;
this->m_dCurrentPosition[2] = dNewPoint2;
this->m_dCurrentPosition[3] = dNewPoint3;
+ GraphCtrl_ShiftGrid(this);
GraphCtrl_DrawPoint(this);
/* Invalidate(); */
return dPrevious;
@@ -407,6 +405,51 @@ void GraphCtrl_Paint(TGraphCtrl* this, HWND hWnd, HDC dc)
DeleteDC(memDC);
}
+void GraphCtrl_ShiftGrid(TGraphCtrl* this)
+{
+ RECT rectCleanUp;
+ HPEN oldPen, solidPen;
+ int i;
+
+ if (this->m_dcGrid == NULL)
+ return;
+
+ solidPen = CreatePen(PS_SOLID, 0, this->m_crGridColor);
+
+ /* Scroll the grid left: BitBlt it to itself */
+ BitBlt(this->m_dcGrid, this->m_rectPlot.left, this->m_rectPlot.top + 1,
+ this->m_nPlotWidth, this->m_nPlotHeight,
+ this->m_dcGrid, this->m_rectPlot.left + this->m_nShiftPixels, this->m_rectPlot.top + 1,
+ SRCCOPY);
+
+ /* Set shift pixels */
+ this->m_nGridOffsetPixels = (this->m_nGridOffsetPixels + this->m_nShiftPixels) % this->m_nGridXPixels;
+
+ /* Construct a rect in which needs update */
+ rectCleanUp = this->m_rectPlot;
+ rectCleanUp.left = rectCleanUp.right - this->m_nShiftPixels;
+
+ /* Fill the cleanup area with the background */
+ FillRect(this->m_dcGrid, &rectCleanUp, this->m_brushBack);
+
+ /* Draw the plot rectangle */
+ oldPen = (HPEN)SelectObject(this->m_dcGrid, solidPen);
+
+ /* Redraw horizontal axis */
+ for (i = rectCleanUp.top; i < rectCleanUp.bottom; i += this->m_nGridYPixels)
+ {
+ MoveToEx(this->m_dcGrid, rectCleanUp.left, i, NULL);
+ LineTo(this->m_dcGrid, rectCleanUp.right, i);
+ }
+
+ /* Redraw scrolled vertical axis */
+ MoveToEx(this->m_dcGrid, rectCleanUp.right - this->m_nGridOffsetPixels, rectCleanUp.top, NULL);
+ LineTo(this->m_dcGrid, rectCleanUp.right - this->m_nGridOffsetPixels, rectCleanUp.bottom);
+
+ SelectObject(this->m_dcGrid, oldPen);
+ DeleteObject(solidPen);
+}
+
void GraphCtrl_DrawPoint(TGraphCtrl* this)
{
/* this does the work of "scrolling" the plot to the left
diff --git a/base/applications/taskmgr/graphctl.h b/base/applications/taskmgr/graphctl.h
index e9ef84f05f7..428d9c30b7d 100644
--- a/base/applications/taskmgr/graphctl.h
+++ b/base/applications/taskmgr/graphctl.h
@@ -60,10 +60,13 @@ typedef struct
/* those were protected fields */
int m_nHalfShiftPixels;
int m_nPlotShiftPixels;
+ int m_nGridOffsetPixels;
int m_nClientHeight;
int m_nClientWidth;
int m_nPlotHeight;
int m_nPlotWidth;
+ int m_nGridXPixels;
+ int m_nGridYPixels;
double m_dLowerLimit; /* lower bounds */
double m_dUpperLimit; /* upper bounds */
@@ -92,6 +95,7 @@ void GraphCtrl_Create(TGraphCtrl* this, HWND hWnd, HWND hParentWnd,
UINT nID);
void GraphCtrl_Dispose(TGraphCtrl* this);
void GraphCtrl_DrawPoint(TGraphCtrl* this);
+void GraphCtrl_ShiftGrid(TGraphCtrl* this);
void GraphCtrl_InvalidateCtrl(TGraphCtrl* this, BOOL bResize);
void GraphCtrl_Paint(TGraphCtrl* this, HWND hWnd, HDC dc);
void GraphCtrl_Reset(TGraphCtrl* this);