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CnC_Remastered_Collection/REDALERT/GAUGE.CPP
PG-SteveT 03416d24e1 Initial Source Code commit 
Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
2020-05-27 12:16:20 -07:00

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//
// Copyright 2020 Electronic Arts Inc.
//
// TiberianDawn.DLL and RedAlert.dll and corresponding source code 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 3 of the License, or (at your option) any later version.
// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
// in the hope that it will be useful, but with permitted additional restrictions
// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
// distributed with this program. You should have received a copy of the
// GNU General Public License along with permitted additional restrictions
// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
/* $Header: /CounterStrike/GAUGE.CPP 1 3/03/97 10:24a Joe_bostic $ */
/***********************************************************************************************
*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
***********************************************************************************************
* *
* Project Name : Command & Conquer *
* *
* File Name : GAUGE.CPP *
* *
* Programmer : Joe L. Bostic, Maria del Mar McCready Legg *
* *
* Start Date : 01/15/95 *
* *
* Last Update : January 16, 1995 [JLB] *
* *
*---------------------------------------------------------------------------------------------*
* Functions: *
* GaugeClass::Action -- Handles input events for the gauge. *
* GaugeClass::Draw_Me -- Draws the body of the gauge. *
* GaugeClass::Pixel_To_Value -- Convert a pixel offset into a gauge value. *
* GaugeClass::Set_Maximum -- Sets the maximum value for the gauge. *
* GaugeClass::Set_Value -- Set the value of the gauge. *
* GaugeClass::Value_To_Pixel -- Convert gauge value to pixel offset. *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#include "function.h"
/***************************************************************************
* GaugeClass::GaugeClass -- class constructor *
* *
* INPUT: id -- button ID *
* *
* x,y -- upper-left corner, in pixels *
* *
* w,h -- width, height, in pixels *
* *
* OUTPUT: none. *
* *
* WARNINGS: none. *
* *
* HISTORY: 01/05/1995 MML : Created. *
*=========================================================================*/
GaugeClass::GaugeClass(unsigned id, int x, int y, int w, int h)
: ControlClass(id, x, y, w, h, LEFTHELD|LEFTPRESS|LEFTRELEASE, true)
{
Set_Maximum(255);
Set_Value(0);
HasThumb = true;
IsHorizontal = (w > h);
IsColorized = true;
ClickDiff = 0;
}
/***********************************************************************************************
* GaugeClass::Set_Maximum -- Sets the maximum value for the gauge. *
* *
* This routine will set the maximum value for the gauge. This is the largest value that *
* the current setting may reach. The ability to change this allows the gauge to use and *
* return values that are convenient for the programmer's current needs. *
* *
* INPUT: value -- The value to use as the gauge maximum. *
* *
* OUTPUT: bool; Was the gauge maximum changed? A false indicates that the specified value *
* already matches the current maximum. *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 01/16/1995 JLB : Created. *
*=============================================================================================*/
int GaugeClass::Set_Maximum(int value)
{
if (value != MaxValue) {
MaxValue = value;
Flag_To_Redraw();
return(true);
}
return(false);
}
/***********************************************************************************************
* GaugeClass::Set_Value -- Set the value of the gauge. *
* *
* This routine will set the current value for the gauge. This value is clipped to the *
* limits of the gauge maximum. *
* *
* INPUT: value -- The value to set at the new current value. *
* *
* OUTPUT: bool; Was the current setting changed? A false indicates that the setting *
* specified is the same as what was already there. *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 01/16/1995 JLB : Created. *
*=============================================================================================*/
int GaugeClass::Set_Value(int value)
{
value = Bound(value, 0, MaxValue);
if (value != CurValue) {
CurValue = value;
Flag_To_Redraw();
return(true);
}
return(false);
}
/***********************************************************************************************
* GaugeClass::Pixel_To_Value -- Convert a pixel offset into a gauge value. *
* *
* Use this routine to convert the specified pixel offset into a gauge value. This is used *
* in translating mouse clicks into a corresponding setting for the gauge. *
* *
* INPUT: pixel -- The pixel offset form the start of the gauge. *
* *
* OUTPUT: Returns with the setting value in gauge coordinates. *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 01/16/1995 JLB : Created. *
*=============================================================================================*/
int GaugeClass::Pixel_To_Value(int pixel)
{
int maximum;
if (IsHorizontal) {
pixel -= X+1;
maximum = Width;
} else {
pixel -= Y+1;
maximum = Height;
}
maximum -= 2;
pixel = Bound(pixel, 0, maximum);
return(MaxValue * fixed(pixel, maximum));
// return(Fixed_To_Cardinal(MaxValue, Cardinal_To_Fixed(maximum, pixel)));
}
/***********************************************************************************************
* GaugeClass::Value_To_Pixel -- Convert gauge value to pixel offset. *
* *
* Use this routine to convert the specified gauge value into a pixel offset from the *
* star of the gauge. This is used for thumb positioning. *
* *
* INPUT: value -- The value to convert to a pixel offset. *
* *
* OUTPUT: Returns with the pixel offset of the specified value from the start of the *
* gauge. *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 01/16/1995 JLB : Created. *
*=============================================================================================*/
int GaugeClass::Value_To_Pixel(int value)
{
int maximum;
int start;
if (IsHorizontal) {
maximum = Width;
start = X;
} else {
maximum = Height;
start = Y;
}
maximum -= 2;
return(start + maximum * fixed(value, MaxValue));
// return(start + Fixed_To_Cardinal(maximum, Cardinal_To_Fixed(MaxValue, value)));
}
/***********************************************************************************************
* GaugeClass::Draw_Me -- Draws the body of the gauge. *
* *
* This routine will draw the body of the gauge if necessary. *
* *
* INPUT: forced -- Should the gauge be redrawn regardless of the current redraw flag? *
* *
* OUTPUT: bool; Was the gauge redrawn? *
* *
* WARNINGS: none *
* *
* HISTORY: 01/16/1995 JLB : Created. *
*=============================================================================================*/
int GaugeClass::Draw_Me(int forced)
{
if (ControlClass::Draw_Me(forced)) {
/*
** Hide the mouse
*/
if (LogicPage == &SeenBuff) {
Conditional_Hide_Mouse(X, Y, X+Width, Y+Height);
}
/*
** Draw the body & set text color
*/
Draw_Box (X, Y, Width, Height, BOXSTYLE_DOWN, true);
/*
** Colourize the inside of the gauge if indicated.
*/
if (IsColorized) {
int middle = Value_To_Pixel(CurValue);
int color = GadgetClass::Get_Color_Scheme()->Bright;
if (IsHorizontal) {
if (middle >= (X + 1))
LogicPage->Fill_Rect(X+1, Y+1, middle, Y+Height-2, color);
} else {
if (middle >= (Y + 1))
LogicPage->Fill_Rect(X+1, Y+1, X+Width-2, middle, color);
}
}
if (HasThumb) {
Draw_Thumb();
}
/*
** Display the mouse
*/
if (LogicPage == &SeenBuff) {
Conditional_Show_Mouse();
}
return(true);
}
return(false);
}
/***********************************************************************************************
* GaugeClass::Action -- Handles input events for the gauge. *
* *
* This routine will handle input event processing for the gauge. It will adjust the *
* current setting of the gauge according to the mouse position. *
* *
* INPUT: flags -- The input event that is the reason for this function call. *
* key -- The key code that caused the event. *
* *
* OUTPUT: bool; Was the even recognized, processed, and no further gadget scanning is *
* desired (for this pass). *
* *
* WARNINGS: none *
* HISTORY: *
* 01/16/1995 JLB : Created. *
*=============================================================================================*/
int GaugeClass::Action(unsigned flags, KeyNumType &key)
{
/*
** If there's no thumb on this gauge, it's a display-only device.
*/
if (!HasThumb) {
return(false);
}
/*
** We might end up clearing the event bits. Make sure that the sticky
** process is properly updated anyway.
*/
Sticky_Process(flags);
/*
** If the thumb is currently being "dragged around", then update the slider
** position according to the mouse position. In all other cases, ignore the
** button being held down.
*/
if ((flags & LEFTPRESS) || ((flags & LEFTHELD) && StuckOn == this)) {
/*
** Compute the difference between where we clicked, and the edge of
** the thumb (only if we clicked on the thumb.)
*/
if (flags & LEFTPRESS) {
int curpix = Value_To_Pixel(CurValue);
int clickpix = (IsHorizontal ? Get_Mouse_X() : Get_Mouse_Y());
if ( (clickpix > curpix) && (clickpix - curpix) < Thumb_Pixels()) {
ClickDiff = (clickpix - curpix);
} else {
ClickDiff = 0;
}
int testval = Pixel_To_Value(IsHorizontal ?
Get_Mouse_X() - ClickDiff : Get_Mouse_Y() - ClickDiff);
/*
** Correct for round-down errors in Pixel_To_Value() and
** Value_To_Pixel(); make ClickDiff exactly right so that
** at this point, Get_Mouse_n() - ClickDiff converts to
** CurValue.
*/
while (testval < CurValue && ClickDiff > 0) {
ClickDiff--;
testval = Pixel_To_Value(IsHorizontal ?
Get_Mouse_X() - ClickDiff : Get_Mouse_Y() - ClickDiff);
}
}
/*
** If no change occurred in the gauge, just call Control's Action routine,
** but turn off the flags so it won't fill in 'key' with the button ID.
** Thus, no button ID will be returned by Input.
*/
if (!Set_Value(Pixel_To_Value(IsHorizontal ?
Get_Mouse_X() - ClickDiff : Get_Mouse_Y() - ClickDiff))) {
flags &= ~(LEFTHELD|LEFTRELEASE|LEFTPRESS);
ControlClass::Action(0, key);
key = KN_NONE;
return(true);
}
} else {
/*
** Ignore the left mouse button being held down if this gauge is not
** currently in "sticky" mode. This allows processing of the LEFTPRESS
** by any derived classes such that this gauge can be more closely
** controlled.
*/
flags &= ~LEFTHELD;
}
return(ControlClass::Action(flags, key));
}
/***********************************************************************************************
* GaugeClass::Draw_Thumb -- Draws the body of the gauge. *
* *
* This routine will draw the body of the gauge if necessary. *
* *
* INPUT: none. *
* *
* OUTPUT: none. *
* *
* WARNINGS: none. *
* *
* HISTORY: 01/16/1995 MML : Created. *
*=============================================================================================*/
void GaugeClass::Draw_Thumb(void)
{
int x = Value_To_Pixel(CurValue);
if ((x + 4) > Value_To_Pixel(MaxValue)) {
x = Value_To_Pixel(MaxValue) - 2;
}
if (x < X) {
x = X;
}
if (IsHorizontal) {
Draw_Box(x, Y, 4, Height, BOXSTYLE_RAISED, true);
} else {
Draw_Box(X, x, Width, 4, BOXSTYLE_RAISED, true);
}
}
/***********************************************************************************************
* TriColorGaugeClass::TriColorGaugeClass -- Constructor for 3 color (red\yellow\green) gauge. *
* *
* This routine will draw the body of the gauge if necessary. *
* *
* INPUT: See below. *
* *
* OUTPUT: none. *
* *
* WARNINGS: none. *
* *
* HISTORY: 01/16/1995 MML : Created. *
*=============================================================================================*/
TriColorGaugeClass::TriColorGaugeClass(unsigned id, int x, int y, int w, int h)
: GaugeClass(id, x, y, w, h)
{
RedLimit = 0; // maximum value for red
YellowLimit = 0; // maximum value for yellow
}
/***********************************************************************************************
* TriColorGaugeClass::Set_Red_Limit -- Set the value for the red area of gauge. *
* *
* INPUT: int value. *
* *
* OUTPUT: bool true of false. *
* *
* WARNINGS: none. *
* *
* HISTORY: 01/16/1995 MML : Created. *
*=============================================================================================*/
int TriColorGaugeClass::Set_Red_Limit(int value)
{
if (value >= 0 && value < MaxValue) {
// if (value > YellowLimit) {
// RedLimit = YellowLimit;
// YellowLimit = value;
// } else {
RedLimit = value;
// }
Flag_To_Redraw();
return(true);
}
return(false);
}
/***********************************************************************************************
* TriColorGaugeClass::Set_Yellow_Limit -- Set the value for the yellow area of gauge. *
* *
* INPUT: int value. *
* *
* OUTPUT: bool true of false. *
* *
* WARNINGS: none. *
* *
* HISTORY: 01/16/1995 MML : Created. *
*=============================================================================================*/
int TriColorGaugeClass::Set_Yellow_Limit(int value)
{
if (value >= 0 && value < MaxValue) {
// if (value < RedLimit) {
// YellowLimit = RedLimit;
// RedLimit = value;
// } else {
YellowLimit = value;
// }
Flag_To_Redraw();
return(true);
}
return(false);
}
/***********************************************************************************************
* TriColorGaugeClass::Draw_Me -- Draw the tri color gauge. *
* *
* INPUT: int forced -- draw or not? *
* *
* OUTPUT: bool true of false. *
* *
* WARNINGS: none. *
* *
* HISTORY: 01/16/1995 MML : Created. *
*=============================================================================================*/
int TriColorGaugeClass::Draw_Me(int forced)
{
if (ControlClass::Draw_Me(forced)) {
/*
** Hide the mouse
*/
if (LogicPage == &SeenBuff) {
Conditional_Hide_Mouse(X, Y, X+Width, Y+Height);
}
/*
** Draw the body & set text color
*/
Draw_Box (X, Y, Width, Height, (IsDisabled ? BOXSTYLE_RAISED : BOXSTYLE_DOWN), true);
/*
** Colourize the inside of the gauge if indicated.
*/
int red = Value_To_Pixel(RedLimit);
int yellow = Value_To_Pixel(YellowLimit);
int middle = Value_To_Pixel(CurValue);
if (CurValue <= RedLimit) {
if (IsHorizontal) {
LogicPage->Fill_Rect(X+1, Y+1, middle, Y+Height-2, PINK);
} else {
LogicPage->Fill_Rect(X+1, Y+1, X+Width-2, middle, PINK);
}
} else if (CurValue > RedLimit && CurValue <= YellowLimit) {
if (IsHorizontal) {
LogicPage->Fill_Rect(X+1, Y+1, red, Y+Height-2, PINK);
LogicPage->Fill_Rect(red, Y+1, middle, Y+Height-2, YELLOW);
} else {
LogicPage->Fill_Rect(X+1, Y+1, X+Width-2, red, PINK);
LogicPage->Fill_Rect(X+1, red, X+Width-2, middle, YELLOW);
}
} else if (CurValue > YellowLimit && CurValue <= MaxValue) {
if (IsHorizontal) {
LogicPage->Fill_Rect(X+1, Y+1, red, Y+Height-2, PINK);
LogicPage->Fill_Rect(red, Y+1, yellow, Y+Height-2, YELLOW);
LogicPage->Fill_Rect(yellow, Y+1, middle, Y+Height-2, GREEN);
} else {
LogicPage->Fill_Rect(X+1, Y+1, X+Width-2, red, PINK);
LogicPage->Fill_Rect(X+1, red, X+Width-2, yellow, YELLOW);
LogicPage->Fill_Rect(X+1, yellow, X+Width-2, middle, GREEN);
}
}
if (HasThumb) {
Draw_Thumb();
}
/*
** Display the mouse
*/
if (LogicPage == &SeenBuff) {
Conditional_Show_Mouse();
}
return(true);
}
return(false);
}
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