Diffstat (limited to 'inputmethods/dasher/DasherViewSquare.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | inputmethods/dasher/DasherViewSquare.cpp | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/inputmethods/dasher/DasherViewSquare.cpp b/inputmethods/dasher/DasherViewSquare.cpp new file mode 100644 index 0000000..1b12a58 --- a/dev/null +++ b/inputmethods/dasher/DasherViewSquare.cpp @@ -0,0 +1,229 @@ +// DasherViewSquare.cpp +// +///////////////////////////////////////////////////////////////////////////// +// +// Copyright (c) 2001-2002 David Ward +// +///////////////////////////////////////////////////////////////////////////// + + +////////////////////////////////////////////////////////////////////// +// DasherViewSquare.cpp: implementation of the DasherViewSquare class. +// Copyright 2002 David Ward +////////////////////////////////////////////////////////////////////// + +#include "DasherModel.h" +#include "DasherViewSquare.h" +#include <iostream> + +using namespace Dasher; + +// ARG! MSVC++ V6 doesn't seem to come with min and max in <algorithm> +#ifdef _MSC_VER +#ifndef max +#define max(a,b) (((a) > (b)) ? (a) : (b)) +#endif +#ifndef min +#define min(a,b) (((a) < (b)) ? (a) : (b)) +#endif +#else +#include <algorithm> +using std::min; +using std::max; +#endif + + +CDasherViewSquare::CDasherViewSquare(CDasherScreen* DasherScreen, CDasherModel& DasherModel, Dasher::Opts::ScreenOrientations Orientation) + : CDasherView(DasherScreen, DasherModel, Orientation) +{ + ChangeScreen(DasherScreen); + + // tweak these if you know what you are doing + m_dXmpa=0.2; // these are for the x non-linearity + m_dXmpb=0.5; + m_dXmpc=0.9; + m_dXmpd=0.5; // slow X movement when accelerating Y + + double dY1=0.25; // Amount of acceleration + double dY2=0.95; // Accelerate Y movement below this point + double dY3=0.05; // Accelerate Y movement above this point + + m_Y2=int (dY2 * (CDasherView::DasherModel().DasherY()) ); + m_Y3=int (dY3 * (CDasherView::DasherModel().DasherY()) ); + m_Y1=int(1.0/dY1); + +} + + +int CDasherViewSquare::RenderNode(const symbol Character, const int Color, Opts::ColorSchemes ColorScheme, + myint y1, myint y2, int& mostleft, bool& force, bool text) +{ + int top = dashery2screen(y1); + if (top>CanvasY) + return 0; + if (top<0) + top=0; + + int bottom = dashery2screen(y2); + if (bottom<0) + return 0; + if (bottom>CanvasY) + bottom=CanvasY; + + int height=bottom-top; + + if (height==0 && text==true) + force=false; + + if (force || height>1) { + force=true; + + int left=dasherx2screen(y2-y1); + + int right=CanvasX; + + int newleft=left, newtop=top, newright=right, newbottom=bottom; + MapScreen(&newleft, &newtop); + MapScreen(&newright, &newbottom); + if( !text ) + Screen().DrawRectangle(newleft, newtop, newright, newbottom, Color, ColorScheme); + else + { + if (left<mostleft) + left=mostleft; + + int Size; + if (left*Screen().GetFontSize()<CanvasX*19/20) { + Size = 20*Screen().GetFontSize(); + } else if (left*Screen().GetFontSize()<CanvasX*159/160) { + Size = 14*Screen().GetFontSize(); + } else { + Size = 11*Screen().GetFontSize(); + } + + int TextWidth, TextHeight, OriginX=0, OriginY=0; + Screen().TextSize(Character, &TextWidth, &TextHeight, Size); + UnMapScreen(&TextWidth, &TextHeight); + UnMapScreen(&OriginX, &OriginY); + int FontHeight = abs(TextHeight-OriginY); + int FontWidth = abs(TextWidth-OriginX); + mostleft = left + FontWidth; + + int newleft2 = left; + int newtop2 = (height-FontHeight)/2 + top; + int newright2 = left + FontWidth; + int newbottom2 = (height+FontHeight)/2 + top; + MapScreen(&newleft2, &newtop2); + MapScreen(&newright2, &newbottom2); + newleft = min(newleft2, newright2); + newtop = min(newtop2, newbottom2); + + Screen().DrawText(Character, newleft, newtop, Size); + } + + return 1; + } else + return 0; +} + + +void CDasherViewSquare::CheckForNewRoot() +{ + CDasherNode * const root=DasherModel().Root(); + CDasherNode ** const children=root->Children(); + + + myint y1=DasherModel().Rootmin(); + myint y2=DasherModel().Rootmax(); + + if ((y1>0 || y2 < DasherModel().DasherY() || dasherx2screen(y2-y1)>0) && root->Symbol()!=0) { + DasherModel().Reparent_root(root->Lbnd(),root->Hbnd()); + } + + if (children==0) + return; + + int alive=0; + int theone=0; + unsigned int i; + for (i=1;i<root->Chars();i++) { + if (children[i]->Alive()) { + alive++; + theone=i; + } + } + + if (alive==1) { + y1=DasherModel().Rootmin(); + y2=DasherModel().Rootmax(); + myint range=y2-y1; + myint newy1=y1+(range*children[theone]->Lbnd())/DasherModel().Normalization(); + myint newy2=y1+(range*children[theone]->Hbnd())/DasherModel().Normalization(); + if (newy1<0 && newy2> DasherModel().DasherY()) { + myint left=dasherx2screen(newy2-newy1); + if (left<0) { + DasherModel().Make_root(theone); + return; + } + } + } +} + + +// work out the next viewpoint +// move the rectangles accordingly +void CDasherViewSquare::TapOnDisplay(int mousex,int mousey, unsigned long Time) +{ + // convert mouse (screen) coords into dasher coords + if (mousex>CanvasX) + mousex=CanvasX; + + UnMapScreen(&mousex, &mousey); + screen2dasher(&mousex,&mousey); + DasherModel().Tap_on_display(mousex,mousey, Time); + CheckForNewRoot(); +} + +void CDasherViewSquare::DrawMouse(int mousex, int mousey) +{ + screen2dasher(&mousex,&mousey); + mousex=dasherx2screen(mousex); + mousey=dashery2screen(mousey); + Screen().DrawRectangle(mousex-5, mousey-5, mousex+5, mousey+5, 0, Opts::ColorSchemes(Objects)); +} + +void CDasherViewSquare::DrawKeyboard() +{ + CDasherScreen::point line[2]; + line[0].x = 200; + line[0].y = 0; + line[1].x = 200; + line[1].y = CanvasY/2; + + Screen().Polyline(line,2); + + line[0].x = 200; + line[0].y = CanvasY/2; + line[1].x = 0; + line[1].y = CanvasY/2; + + Screen().Polyline(line,2); + + line[0].x = 200; + line[0].y = CanvasY/2; + line[1].x = 200; + line[1].y = CanvasY; + + Screen().Polyline(line,2); +} + +void CDasherViewSquare::ChangeScreen(CDasherScreen* NewScreen) +{ + CDasherView::ChangeScreen(NewScreen); + int Width = Screen().GetWidth(); + int Height = Screen().GetHeight(); + CanvasX=9*Width/10; + CanvasBorder=Width-CanvasX; + CanvasY=Height; +} + |