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[apps/graph] add methods to handle function names and colors.

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Change-Id: Ic11f2dd6bd9cb473b436d5e7769e2660c173c733
This commit is contained in:
Émilie Feral
2016-09-30 17:53:17 +02:00
parent b250795e2d
commit e109a23485
5 changed files with 55 additions and 22 deletions
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44
apps/graph/function_store.cpp
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@@ -3,8 +3,9 @@ extern "C" {
#include <assert.h>
}
constexpr int Graph::FunctionStore::numberOfDefaultColors;
constexpr KDColor Graph::FunctionStore::defaultColors[numberOfDefaultColors];
constexpr int Graph::FunctionStore::k_numberOfDefaultColors;
constexpr KDColor Graph::FunctionStore::defaultColors[k_numberOfDefaultColors];
constexpr const char * Graph::FunctionStore::functionNames[k_maxNumberOfFunctions];
Graph::FunctionStore::FunctionStore() :
m_numberOfFunctions(0)
@@ -18,10 +19,9 @@ Graph::Function * Graph::FunctionStore::functionAtIndex(int i) {
Graph::Function * Graph::FunctionStore::addEmptyFunction() {
assert(m_numberOfFunctions < k_maxNumberOfFunctions);
Graph::Function addedFunction = Function();
addedFunction.setColor(defaultColors[numberOfFunctions()%numberOfDefaultColors]);
addedFunction.setName("f(x)");
addedFunction.setActive(true);
const char * name = firstAvailableName();
KDColor color = firstAvailableColor();
Graph::Function addedFunction = Function(name, color);
m_functions[m_numberOfFunctions] = addedFunction;
Function * result = &m_functions[m_numberOfFunctions];
m_numberOfFunctions++;
@@ -43,3 +43,35 @@ void Graph::FunctionStore::removeFunction(Function * f) {
int Graph::FunctionStore::numberOfFunctions() {
return m_numberOfFunctions;
}
const char * Graph::FunctionStore::firstAvailableName() {
for (int k = 0; k < k_maxNumberOfFunctions; k++) {
int j = 0;
while (j < m_numberOfFunctions) {
if (m_functions[j].name() == functionNames[k]) {
break;
}
j++;
}
if (j == m_numberOfFunctions) {
return functionNames[k];
}
}
return functionNames[0];
}
const KDColor Graph::FunctionStore::firstAvailableColor() {
for (int k = 0; k < k_numberOfDefaultColors; k++) {
int j = 0;
while (j < m_numberOfFunctions) {
if (m_functions[j].color() == defaultColors[k]) {
break;
}
j++;
}
if (j == m_numberOfFunctions) {
return defaultColors[k];
}
}
return defaultColors[0];
}