gecko-dev/ef/Compiler/CodeGenerator/IGVisualizer.cpp

920 строки
23 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
/*
The instruction graph visulizer.
IGVisualizer.cpp
Peter DeSantis
*/
#if defined(DEBUG) && (defined(WIN32) || defined(USE_MESA)) && defined(IGVISUALIZE)
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <GL/glut.h>
#include "CodeGenerator.h"
#include "IGVisualizer.h"
#include "Instruction.h"
#include "Primitives.h"
#include "Vector.h"
// To allow glut callbacks to access member data
IGVisualizer* IGVisualizer::self = NULL;
IGVisualizer::
IGVisualizer()
{
font = GLUT_STROKE_ROMAN;
zoomFactor = 2;
cumZoom = 1;
objectCenterX = 0;
objectCenterY = 0;
mouseCenterX = 0;
mouseCenterY = 0;
nodeLocX = 0;
nodeLocY = 0;
xWindowDim = 800; // Dimension of window
yWindowDim = 600;
xDimGL = 10000;
yDimGL = 10000;
centerX = 0;
centerY = 0;
INSTRUCTIONWIDTH = 1400; // The size of the instruction itself
INSTRUCTIONHEIGHT = 500 ;
FRAMEWIDTH = 1450; // Frame is the area around an instruction
FRAMEHEIGHT = 750;
BORDERWIDTH = 20; // Border around an instruction
SPACEBETWEENTREES = 130;
ARGUMENTREGISTERS = 4; // VR <= AURGUMENTMENTREGISTERS
self = this;
roots = new Vector<VisualInstructionRoot>;
}
IGVisualizer ::
~IGVisualizer()
{
delete roots;
}
/*
Add all the roots you want to be visualized before calling visualize
*/
void IGVisualizer ::
addRoots(Vector<RootPair>& inRoots)
{
RootPair* curRoot;
VisualInstructionRoot* vRoot = NULL;
for(curRoot = inRoots.begin(); curRoot < inRoots.end(); curRoot++)
{
DataNode* curOutput;
Instruction* nextInsn;
if(curRoot->root->getOutgoingEdgesEnd() > curRoot->root->getOutgoingEdgesBegin())
{
// now walk through all vr's assigned to this producer
VirtualRegister* curVR;
for (curOutput = curRoot->root->getOutgoingEdgesBegin();
curOutput < curRoot->root->getOutgoingEdgesEnd();
curOutput++)
{
switch (curOutput->kind)
{
case vkCond:
case vkMemory:
nextInsn = curOutput->getInstructionAnnotation();
break;
default:
curVR = curOutput->getVirtualRegisterAnnotation();
assert (curVR);
nextInsn = curVR->getDefineInstruction();
break;
}
assert (nextInsn);
vRoot = new VisualInstructionRoot;
vRoot->root = nextInsn;
vRoot->exploringAsRoot = false;
vRoot->locAsCSE = new Vector<TreeLocation>;
vRoot->currentCSE = NULL;
vRoot->locAsRoot = NULL;
roots->append(*vRoot);
}
}
if (curRoot->root->getInstructionRoot() != NULL) {
nextInsn = curRoot->root->getInstructionRoot();
vRoot = new VisualInstructionRoot;
vRoot->root = nextInsn;
vRoot->exploringAsRoot = false;
vRoot->locAsCSE = new Vector<TreeLocation>;
vRoot->currentCSE = NULL;
vRoot->locAsRoot = NULL;
roots->append(*vRoot);
}
}
}
/*
Internal routine which visualizes the set of roots
*/
void IGVisualizer ::
visualizeRoots()
{
int bottom = 0;
int left = 0;
VisualInstructionRoot* curRoot;
for(curRoot = self->roots->begin(); curRoot < self->roots->end(); curRoot++)
{
curRoot->exploringAsRoot = true;
curRoot->locAsRoot = &DrawTree(*(curRoot->root), bottom, left);
bottom = curRoot->locAsRoot->top + self->SPACEBETWEENTREES;
curRoot->exploringAsRoot = false;
}
}
VisualInstructionRoot* IGVisualizer ::
isInRoots(Instruction* subRoot)
{
VisualInstructionRoot* curRoot;
for(curRoot = self->roots->begin(); curRoot < self->roots->end(); curRoot++)
if(curRoot->root == subRoot)
return curRoot;
return NULL;
}
/*
Internal routine to draw the tree rooted a root so that root's bottom is at yBottom
and the tree rooted at root extends to xLeft.
*/
TreeLocation& IGVisualizer ::
DrawTree(Instruction& root, int yBottom, int xLeft)
{
Instruction* subRoot;
InstructionUse* curUse;
TreeLocation* loc;
TreeLocation* myLocation = new TreeLocation;
Vector<TreeLocation> subTreeLocations;
VisualInstructionRoot* vRoot;
int left = xLeft;
int top = yBottom + self->FRAMEHEIGHT;
if(root.next == NULL)
{
assert(root.prev == NULL);
assert(root.getInstructionDefineEnd() == root.getInstructionDefineBegin() +1);
assert(root.getInstructionUseEnd() == root.getInstructionUseBegin() +1);
// Instruction has been removed from the list
curUse = root.getInstructionUseBegin();
subRoot = CodeGenerator::instructionUseToInstruction(*curUse);
if(subRoot != NULL)
{
vRoot = isInRoots(subRoot);
if(vRoot != NULL) // CSE
{
loc = new TreeLocation;
loc->rootMiddle = (float)self->FRAMEWIDTH/2 + left;
loc->right = self->FRAMEWIDTH + left;
loc->top = yBottom + self->FRAMEHEIGHT;
loc->bottom = yBottom;
DrawSubExpressionNode(subRoot, loc->rootMiddle, loc->bottom);
vRoot->locAsCSE->append(*loc);
loc = new TreeLocation;
loc->rootMiddle = (float)self->FRAMEWIDTH/2 + left;
loc->right = self->FRAMEWIDTH + left;
loc->top = yBottom + self->FRAMEHEIGHT;
loc->bottom = yBottom;
return *loc;
} else
{
PrimitiveOperation op = subRoot->getPrimitive()->getOperation();
switch (op)
{
case(poPhi_M):
case(poPhi_I):
case(poPhi_L):
case(poPhi_F):
case(poPhi_D):
case(poPhi_A):
case(poPhi_C):
loc = new TreeLocation;
loc->rootMiddle = (float)self->FRAMEWIDTH/2 + left;
loc->right = self->FRAMEWIDTH + left;
loc->top = yBottom + self->FRAMEHEIGHT;
loc->bottom = yBottom;
DrawDummyNode(loc->rootMiddle, loc->bottom);
return *loc;
break;
default:
return DrawTree(*subRoot, yBottom, left);
break;
}
}
} else { // This input is not defined
loc = new TreeLocation;
loc->rootMiddle = (float)self->FRAMEWIDTH/2 + left;
loc->right = self->FRAMEWIDTH + left;
loc->top = yBottom + self->FRAMEHEIGHT;
loc->bottom = yBottom;
if( (curUse->kind == udRegister) && ((*(curUse->name.vr)).index <= self->ARGUMENTREGISTERS) )
{
DrawArgumentNode(loc->rootMiddle, loc->bottom);
} else
DrawDummyNode(loc->rootMiddle, loc->bottom);
return *loc;
}
}
assert(root.prev != NULL);
// Draw your sub trees
for(curUse = root.getInstructionUseBegin(); curUse < root.getInstructionUseEnd(); curUse++)
{
subRoot = CodeGenerator::instructionUseToInstruction(*curUse);
if(subRoot != NULL)
{
vRoot = isInRoots(subRoot);
if(vRoot != NULL) // CSE
{
loc = new TreeLocation;
loc->rootMiddle = (float)self->FRAMEWIDTH/2 + left;
loc->right = self->FRAMEWIDTH + left;
loc->top = yBottom + (2 * self->FRAMEHEIGHT);
loc->bottom = yBottom + self->FRAMEHEIGHT;
DrawSubExpressionNode(subRoot, loc->rootMiddle, loc->bottom);
vRoot->locAsCSE->append(*loc);
loc = new TreeLocation;
loc->rootMiddle = (float)self->FRAMEWIDTH/2 + left;
loc->right = self->FRAMEWIDTH + left;
loc->top = yBottom + (2 * self->FRAMEHEIGHT);
loc->bottom = yBottom + self->FRAMEHEIGHT;
} else
{
PrimitiveOperation op = subRoot->getPrimitive()->getOperation();
switch (op)
{
case(poPhi_M):
case(poPhi_I):
case(poPhi_L):
case(poPhi_F):
case(poPhi_D):
case(poPhi_A):
case(poPhi_C):
loc = new TreeLocation;
loc->rootMiddle = (float)self->FRAMEWIDTH/2 + left;
loc->right = self->FRAMEWIDTH + left;
loc->top = yBottom + (2 * self->FRAMEHEIGHT);
loc->bottom = yBottom + self->FRAMEHEIGHT;
DrawDummyNode(loc->rootMiddle, loc->bottom);
break;
default:
loc = &DrawTree(*subRoot, yBottom + self->FRAMEHEIGHT, left);
break;
}
}//loc = &DrawTree(*subRoot, yBottom + self->FRAMEHEIGHT, left);
}
else // This input is not defined
{
loc = new TreeLocation;
loc->rootMiddle = (float)self->FRAMEWIDTH/2 + left;
loc->right = self->FRAMEWIDTH + left;
loc->top = yBottom + (2 * self->FRAMEHEIGHT);
loc->bottom = yBottom + self->FRAMEHEIGHT;
if( (curUse->kind == udRegister) && ((*(curUse->name.vr)).index <= self->ARGUMENTREGISTERS) )
{
DrawArgumentNode(loc->rootMiddle, loc->bottom);
} else
DrawDummyNode(loc->rootMiddle, loc->bottom);
}
if(loc->top > top)
top = loc->top;
left = loc->right;
subTreeLocations.append(*loc);
}
if(subTreeLocations.size() == 0)
{
myLocation->rootMiddle = (float)self->FRAMEWIDTH/2 + xLeft;
myLocation->right = self->FRAMEWIDTH + xLeft;
myLocation->top = yBottom + self->FRAMEHEIGHT;
myLocation->bottom = yBottom;
} else {
myLocation->rootMiddle = subTreeLocations.front().rootMiddle + (0.5f)*(subTreeLocations.back().rootMiddle - subTreeLocations.front().rootMiddle);
myLocation->right = subTreeLocations.back().right;
myLocation->top = top;
myLocation->bottom = yBottom;
}
DrawNode(myLocation->rootMiddle, yBottom, &root, subTreeLocations);
return *myLocation;
}
/*
Dum routine reads a file to a stream, returns size
printPretty should use strings
*/
int fileToString(char *fileName, char *string, int len)
{
FILE* file = fopen(fileName, "r");
assert(file);
char c = fgetc(file);
int i = 0;
while(!feof(file) && i < (len-1))
{
if(c == 9)
c = ' ';
string[i] = c;
i++;
c = fgetc(file);
}
string[i] = '\0';
fclose(file);
return i;
}
/*
Write instruction Name and label Registers
*/
void IGVisualizer ::
LabelNode(Instruction* inst)
{
FILE* file;
char fileName[] = "shitFile";
file = fopen(fileName, "w" );
char prettyString[50];
// Label instruction *****************************************
glColor3f(0.0, 0.0, 0.0);
glPushMatrix(); // 1
glTranslated(3*(float)self->BORDERWIDTH, (float)self->INSTRUCTIONHEIGHT/2.5, 0.0);
int len, i;
inst->printPretty(file);
fclose(file);
len = fileToString(fileName, prettyString, 50);
for (i = 0; i < len; i++)
{
glutStrokeCharacter(self->font, prettyString[i]);
}
glPopMatrix(); // 1
// Label Outputs *********************************************
glColor3f(0.5f, 0.2f, 0.4f);
char registerName[50];
float distanceBetween;
int vrn, j;
InstructionDefine* curDefine;
int numberOfOutputs, numberOfInputs;
numberOfOutputs= inst->getInstructionDefineEnd() - inst->getInstructionDefineBegin();;
assert(numberOfOutputs <= 1);
distanceBetween = (float)self->INSTRUCTIONWIDTH/(numberOfOutputs+1);
glPushMatrix(); // 2
glTranslatef(0.0, 3*(float)self->BORDERWIDTH, 0.0);
j=1;
for(curDefine = inst->getInstructionDefineBegin(); curDefine < inst->getInstructionDefineEnd(); curDefine++)
{
glPushMatrix(); // 3
glTranslatef(j*distanceBetween-100, 0.0, 0.0);
if(curDefine->kind == udRegister)
{
vrn = (*(curDefine->name.vr)).index;
sprintf(registerName, "R%d", vrn);
} else if (curDefine->kind == udCond)
sprintf(registerName, "Cond");
else
sprintf(registerName, "Store");
len = strlen(registerName);
for (i = 0; i < len; i++)
{
glutStrokeCharacter(self->font, registerName[i]);
}
glPopMatrix(); // 3
j++;
}
glPopMatrix(); // 2
// Label Inputs **********************************************
glColor3f(1.0f, 0.0f, 0.2f);
InstructionUse* curUse;
numberOfInputs = inst->getInstructionUseEnd() - inst->getInstructionUseBegin();
distanceBetween = (float)self->INSTRUCTIONWIDTH/(numberOfInputs+1);
glPushMatrix(); // 4
glTranslatef(0.0, self->INSTRUCTIONHEIGHT - 100 - 3*(float)self->BORDERWIDTH, 0.0);
j=1;
for(curUse = inst->getInstructionUseBegin(); curUse < inst->getInstructionUseEnd(); curUse++)
{
glPushMatrix(); // 5
glTranslatef(j*distanceBetween-100, 0.0, 0.0);
if(curUse->kind == udRegister)
{
vrn = (*(curUse->name.vr)).index;
sprintf(registerName, "R%d", vrn);
} else if (curUse->kind == udCond)
sprintf(registerName, "Cond");
else
sprintf(registerName, "Store");
len = strlen(registerName);
for (i = 0; i < len; i++)
{
glutStrokeCharacter(self->font, registerName[i]);
}
glPopMatrix(); // 5
j++;
}
glPopMatrix(); // 4
}
/*
Draw a single instruction with its bottom line centered at (xMiddle, yBottom)
*/
void IGVisualizer ::
DrawNode(double xMiddle, int yBottom, Instruction* inst, Vector<TreeLocation>& subTrees)
{
glPushMatrix(); // 1
glTranslatef((float)xMiddle - self->INSTRUCTIONWIDTH/2, (float)yBottom, 0);
// Draw Instruction body *************************************
glColor3f(0.0, 1.0, 1.0);
glRecti(0, 0, self->INSTRUCTIONWIDTH, self->INSTRUCTIONHEIGHT);
glColor3f(1.0, 1.0, 1.0);
glRecti(self->BORDERWIDTH, self->BORDERWIDTH, self->INSTRUCTIONWIDTH-self->BORDERWIDTH, self->INSTRUCTIONHEIGHT-self->BORDERWIDTH);
LabelNode(inst);
// Connect Inputs *************************************************
TreeLocation* loc;
int numberOfInputs = subTrees.size();
int distToNextLayer = self->FRAMEHEIGHT - self->INSTRUCTIONHEIGHT;
float jag = ((float)distToNextLayer/(numberOfInputs + 1));
float diffMid;
float distanceBetween = (float)self->INSTRUCTIONWIDTH/(numberOfInputs+1);
glPushMatrix(); // 2
glTranslatef(0.0, (float)self->INSTRUCTIONHEIGHT, 0.0);
int j=1;
for(loc = subTrees.begin(); loc < subTrees.end(); loc++)
{
glPushMatrix(); // 3
glTranslatef(j*distanceBetween, 0.0, 0.0);
diffMid = loc->rootMiddle - (float)xMiddle - (j*distanceBetween - ((0.5f)*self->INSTRUCTIONWIDTH));
glBegin(GL_LINES);
glVertex2f(0.0f, 0.0f);
glVertex2f(0.0f, j*jag);
glVertex2f(0.0f, j*jag);
glVertex2f(diffMid, j*jag);
glVertex2f(diffMid, j*jag);
glVertex2f(diffMid, (numberOfInputs + 1)*jag);
glEnd();
glPopMatrix(); // 3
j++;
}
glPopMatrix(); // 2
glPopMatrix(); // 1
}
/*
Draw a node as a subexpression
*/
void IGVisualizer ::
DrawSubExpressionNode(Instruction* inst, double xMiddle, double yBottom)
{
glPushMatrix(); // 1
glTranslatef((float)xMiddle - self->INSTRUCTIONWIDTH/2, (float)yBottom, 0);
// Draw Instruction body *************************************
glColor3f(1.0, 1.0, 0.0);
glRecti(0, 0, self->INSTRUCTIONWIDTH, self->INSTRUCTIONHEIGHT);
glColor3f(1.0, 1.0, 1.0);
glRecti(self->BORDERWIDTH, self->BORDERWIDTH, self->INSTRUCTIONWIDTH-self->BORDERWIDTH, self->INSTRUCTIONHEIGHT-self->BORDERWIDTH);
// Draw the node
LabelNode(inst);
glPopMatrix(); // 1
}
/*
Draw a dummy "unknown" instruction with its bottom line centered at (xMiddle, yBottom)
*/
void IGVisualizer ::
DrawDummyNode(double xMiddle, int yBottom)
{
char unknownMess[] = " ??? ";
glPushMatrix(); // 1
glTranslatef((float)xMiddle - self->INSTRUCTIONWIDTH/2, (float)yBottom, 0);
// Draw Instruction body *************************************
glColor3f(1.0, 0.0, 0.0);
glRecti(0, 0, self->INSTRUCTIONWIDTH, self->INSTRUCTIONHEIGHT);
glColor3f(1.0, 1.0, 1.0);
glRecti(5 * self->BORDERWIDTH, 5 * self->BORDERWIDTH, self->INSTRUCTIONWIDTH-(5*self->BORDERWIDTH), self->INSTRUCTIONHEIGHT-(5*self->BORDERWIDTH));
// Write Message ******************************************
glColor3f(1.0, 0.0, 0.0);
glPushMatrix(); // 2
glTranslated(3*(float)self->BORDERWIDTH, (float)self->INSTRUCTIONHEIGHT/2.5, 0.0);
int len, i;
len = (int) strlen(unknownMess);
for (i = 0; i < len; i++)
{
glutStrokeCharacter(self->font, unknownMess[i]);
}
glPopMatrix(); // 2
glPopMatrix(); //1
}
/*
Draw an argument node
*/
void IGVisualizer ::
DrawArgumentNode(double xMiddle, int yBottom)
{
char unknownMess[] = " Argument ";
glPushMatrix(); // 1
glTranslatef((float)xMiddle - self->INSTRUCTIONWIDTH/2, (float)yBottom, 0);
// Draw Instruction body *************************************
glColor3f(0.0f, 1.0f, 0.3f);
glRecti(0, 0, self->INSTRUCTIONWIDTH, self->INSTRUCTIONHEIGHT);
glColor3f(1.0f, 1.0f, 1.0f);
glRecti(5 * self->BORDERWIDTH, 5 * self->BORDERWIDTH, self->INSTRUCTIONWIDTH-(5*self->BORDERWIDTH), self->INSTRUCTIONHEIGHT-(5*self->BORDERWIDTH));
// Write Message ******************************************
glColor3f(0.0f, 1.0f, 0.3f);
glPushMatrix(); // 2
glTranslated(3*(float)self->BORDERWIDTH, (float)self->INSTRUCTIONHEIGHT/2.5, 0.0);
int len, i;
len = (int) strlen(unknownMess);
for (i = 0; i < len; i++)
{
glutStrokeCharacter(self->font, unknownMess[i]);
}
glPopMatrix(); // 2
glPopMatrix(); //1
}
/*
This is the window system specific stuff for setting up the window for gl.
Visualize is called only once and it enters a non-returning display loop.
*/
enum subMenuFields
{
findAsRoot,
findNextRef
};
void IGVisualizer :: visualize()
{
int zoomMenu, rootMenu;
char* argv ="myProgram";
int argc = 1;
// Initialization
glutInit(&argc, &argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
glutInitWindowSize(xWindowDim, yWindowDim);
glutCreateWindow("Instruction Graph Viewer Dulux");
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(-xDimGL, xDimGL, -yDimGL, yDimGL);
glMatrixMode(GL_MODELVIEW);
glEnable(GL_LINE_SMOOTH);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glLineWidth(1.0);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glColor3f(1.0f, 1.0f, 1.0f);
// Add callbacks
glutDisplayFunc(display);
glutMouseFunc(mouse);
glutKeyboardFunc(keyboard);
glutReshapeFunc(reshape);
// Create the menu
zoomMenu = glutCreateMenu(selectZoom);
glutAddMenuEntry("X 2", 2);
glutAddMenuEntry("X 5", 5);
rootMenu = glutCreateMenu(selectRoot);
glutAddMenuEntry("Goto Definition", findAsRoot);
glutAddMenuEntry("Goto Next Reference", findNextRef);
glutCreateMenu(mainMenu);
glutAddSubMenu("ZoomFactor", zoomMenu);
glutAddSubMenu("Explore Subexpression", rootMenu);
glutAddMenuEntry("Exit", 0);
glutAttachMenu(GLUT_RIGHT_BUTTON);
glutMainLoop();
}
/*
The callback routines
*/
void IGVisualizer ::
display()
{
glClear(GL_COLOR_BUFFER_BIT);
glPushMatrix(); // 1
glScaled(self->cumZoom, self->cumZoom, 1);
glTranslated(self->centerX - self->objectCenterX + self->mouseCenterX, self->centerY - self->objectCenterY + self->mouseCenterY, 0);
visualizeRoots();
glPopMatrix(); // 1
glutSwapBuffers();
}
void IGVisualizer ::
selectZoom(int msg)
{
self->zoomFactor = float(msg);
glutPostRedisplay();
}
void IGVisualizer ::
selectRoot(int msg)
{
VisualInstructionRoot* vRoot = findRootAtLoc(self->nodeLocX, self->nodeLocY);
if(vRoot != NULL)
{
//printf("FOUND ONE\n");
switch(msg) {
case findAsRoot:
self->objectCenterX = vRoot->locAsRoot->rootMiddle;
self->objectCenterY = vRoot->locAsRoot->bottom;
self->mouseCenterX = 0;
self->mouseCenterY = 0;
break;
case findNextRef:
if(vRoot->currentCSE == NULL)
if(vRoot->locAsCSE->size() != 0)
vRoot->currentCSE = vRoot->locAsCSE->begin();
else
return;
else {
vRoot->currentCSE++;
if(vRoot->currentCSE == vRoot->locAsCSE->end())
vRoot->currentCSE = vRoot->locAsCSE->begin();
}
self->objectCenterX = vRoot->currentCSE->rootMiddle;
self->objectCenterY = vRoot->currentCSE->bottom;
self->mouseCenterX = 0;
self->mouseCenterY = 0;
break;
}
}
glutPostRedisplay();
}
VisualInstructionRoot* IGVisualizer ::
findRootAtLoc(double x, double y)
{
VisualInstructionRoot* vRoot;
TreeLocation* tree;
for(vRoot = self->roots->begin(); vRoot < self->roots->end(); vRoot++)
{
if(isInNode(x, y, vRoot->locAsRoot->rootMiddle, vRoot->locAsRoot->bottom))
return vRoot;
for(tree = vRoot->locAsCSE->begin(); tree < vRoot->locAsCSE->end(); tree++)
if(isInNode(x, y, tree->rootMiddle, tree->bottom))
return vRoot;
}
return NULL;
}
bool IGVisualizer ::
isInNode(double x, double y, double middle, int bottom)
{
if((x < (middle + (.5*self->INSTRUCTIONWIDTH))) && (x > (middle - (.5*self->INSTRUCTIONWIDTH))))
if((y > bottom) && (y < (bottom + self->INSTRUCTIONHEIGHT)))
return true;
return false;
}
void IGVisualizer ::
mainMenu(int msg)
{
switch(msg) {
case 0:
exit(0);
break;
}
glutPostRedisplay();
}
void IGVisualizer ::
mouse(int button, int state, int x, int y)
{
if(button == GLUT_LEFT_BUTTON && state == GLUT_DOWN)
{
double transX = -(x - (.5 * (self->xWindowDim)))*((2*self->xDimGL/self->xWindowDim)/self->cumZoom);
double transY = (y - (.5 * (self->yWindowDim)))*((2*self->yDimGL/self->yWindowDim)/self->cumZoom);
self->mouseCenterX = self->mouseCenterX + transX;
self->mouseCenterY = self->mouseCenterY + transY;
}
glutPostRedisplay();
}
void IGVisualizer ::
keyboard(unsigned char key, int x, int y)
{
switch(key){
case '+':
self->cumZoom = self->cumZoom * self->zoomFactor;
break;
case '-':
self->cumZoom = self->cumZoom / self->zoomFactor;
break;
case 's':
double transX = (x - (.5 * (self->xWindowDim)))*((2*self->xDimGL/self->xWindowDim)/self->cumZoom);
double transY = -(y - (.5 * (self->yWindowDim)))*((2*self->yDimGL/self->yWindowDim)/self->cumZoom);
//printf("mouse center**%f, %f**\n", self->mouseCenterX, self->mouseCenterY);
//printf("strans **%f, %f**\n", transX, transY);
//printf("obj center **%f, %f**\n", self->objectCenterX, self->objectCenterY);
self->nodeLocX = transX - self->mouseCenterX + self->objectCenterX;
self->nodeLocY = transY - self->mouseCenterY + self->objectCenterY;
//printf("node center **%f, %f**\n", self->nodeLocX, self->nodeLocY);
break;
}
glutPostRedisplay();
}
void IGVisualizer ::
reshape(int width, int height)
{
self->xWindowDim = width;
self->yWindowDim = height;
glViewport(0, 0, width, height);
glutPostRedisplay();
}
#endif