Added class for easily adding pattern support to DisplayDriver subclasses.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2637 a95241bf-73f2-0310-859d-f6bbb57e9c96
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DarkWyrm
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1568958e09
@ -9,6 +9,7 @@ Server app_server :
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# Misc. Sources
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Angle.cpp
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TokenHandler.cpp
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PatternHandler.cpp
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# PortLink will disappear as soon as I can figure out how to link the server
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# against libopenbeos
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139
src/servers/app/server/PatternHandler.cpp
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139
src/servers/app/server/PatternHandler.cpp
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@ -0,0 +1,139 @@
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//------------------------------------------------------------------------------
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// Copyright (c) 2001-2002, OpenBeOS
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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// File Name: PatternHandler.cpp
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// Author: DarkWyrm <bpmagic@columbus.rr.com>
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// Description: Class for easy calculation and use of patterns
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//
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//------------------------------------------------------------------------------
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#include <Point.h>
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#include "PatternHandler.h"
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/*!
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\brief Void constructor
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The pattern is set to B_SOLID_HIGH, high color is set to black, and
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low color is set to white.
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*/
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PatternHandler::PatternHandler(void)
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{
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_pat.type64=0xFFFFFFFFLL;
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_high=new RGBColor(0,0,0,255);
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_low=new RGBColor(255,255,255,255);
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}
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/*!
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\brief Constructor initializes to given pattern
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\param pat Pattern to use.
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This initializes to the given pattern or B_SOLID_HIGH if the pattern
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is NULL. High color is set to black, and low color is set to white.
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*/
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PatternHandler::PatternHandler(int8 *pat)
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{
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if(pat)
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_pat.type64=*((uint64*)pat);
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else
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_pat.type64=0xFFFFFFFFLL;
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_high=new RGBColor(0,0,0,255);
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_low=new RGBColor(255,255,255,255);
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}
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//! Destructor frees internal color variables
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PatternHandler::~PatternHandler(void)
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{
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delete _high;
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delete _low;
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}
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/*!
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\brief Sets the pattern for the handler to the one given
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\param pat Pattern to use.
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This initializes to the given pattern or B_SOLID_HIGH if the pattern
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is NULL.
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*/
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void PatternHandler::SetTarget(int8 *pat)
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{
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if(pat)
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_pat.type64=*((uint64*)pat);
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else
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_pat.type64=0xFFFFFFFFLL;
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}
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/*!
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\brief Set the colors for the pattern to use
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\param high High color for the handler
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\param low Low color for the handler
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*/
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void PatternHandler::SetColors(const RGBColor &high, const RGBColor &low)
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{
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*_high=high;
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*_low=low;
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}
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/*!
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\brief Obtains the color in the pattern at the specified coordinates
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\param pt Coordinates to get the color for
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\return Color for the coordinates
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*/
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RGBColor PatternHandler::GetColor(const BPoint &pt)
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{
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return GetColor(pt.x,pt.y);
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}
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/*!
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\brief Obtains the color in the pattern at the specified coordinates
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\param x X coordinate to get the color for
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\param y Y coordinate to get the color for
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\return Color for the coordinates
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*/
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RGBColor PatternHandler::GetColor(const float &x, const float &y)
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{
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int32 value=_pat.type8[(uint32)y%8] & (1 << (7-((uint32)x%8)) );
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return (value==0)?*_low:*_high;
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}
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/*!
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\brief Obtains the value of the pattern at the specified coordinates
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\param x X coordinate to get the value for
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\param y Y coordinate to get the value for
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\return Value for the coordinates - true if high, false if low.
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*/
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bool PatternHandler::GetValue(const float &x, const float &y)
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{
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int32 value=_pat.type8[(uint32)y%8] & (1 << (7-((uint32)x%8)) );
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return (value==0)?false:true;
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}
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/*!
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\brief Obtains the value of the pattern at the specified coordinates
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\param pt Coordinates to get the value for
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\return Value for the coordinates - true if high, false if low.
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*/
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bool PatternHandler::GetValue(const BPoint &pt)
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{
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return GetValue(pt.x,pt.y);
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}
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63
src/servers/app/server/PatternHandler.h
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63
src/servers/app/server/PatternHandler.h
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@ -0,0 +1,63 @@
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//------------------------------------------------------------------------------
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// Copyright (c) 2001-2002, OpenBeOS
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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// File Name: PatternHandler.h
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// Author: DarkWyrm <bpmagic@columbus.rr.com>
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// Description: Class for easy calculation and use of patterns
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//
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//------------------------------------------------------------------------------
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#ifndef PATTERNHADLER_H
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#include <SupportDefs.h>
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#include "RGBColor.h"
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typedef union
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{
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uint64 type64;
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uint8 type8[8];
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} pattern_union;
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/*!
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\brief Class for easy calculation and use of patterns
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PatternHandlers are designed specifically for DisplayDriver subclasses.
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Pattern support can be easily added by setting the pattern to use via
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SetTarget, and then merely retrieving the value for the coordinates
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specified.
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*/
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class PatternHandler
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{
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public:
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PatternHandler(void);
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PatternHandler(int8 *pat);
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~PatternHandler(void);
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void SetTarget(int8 *pat);
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void SetColors(const RGBColor &high, const RGBColor &low);
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RGBColor GetColor(const BPoint &pt);
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RGBColor GetColor(const float &x, const float &y);
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bool GetValue(const float &x, const float &y);
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bool GetValue(const BPoint &pt);
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private:
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pattern_union _pat;
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RGBColor *_high,*_low;
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};
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#endif
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