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decided against maintaining a separate 'presets' property in the ValueTree, since this is a view modelling concern that only the table cares about. instead, store as a tree. let the table component be responsible for maintaining a view over a subset of presets, instead of bothering the ValueTree with this. this is an effort to dial back the use of the store, and prefer to use it where it provides the most value rather than using it for everything.

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This commit is contained in:
Alex Birch
2019-07-20 18:49:39 +01:00
parent d8ce91e666
commit 0587e2f68a
5 changed files with 154 additions and 53 deletions
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77
Source/TableComponent.cpp
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@ -8,6 +8,9 @@
#include "TableComponent.h"
#include "Util.h"
#include <functional>
#include <iterator>
#include <map>
using namespace std;
using namespace Util;
@ -74,8 +77,9 @@ TableComponent::TableComponent(
table.setWantsKeyboardFocus(false);
// table.selectRow();
ValueTree presets{valueTreeState.state.getChildWithName("presets")};
loadModelFrom(presets);
// ValueTree presets{valueTreeState.state.getChildWithName("presets")};
ValueTree banks{valueTreeState.state.getChildWithName("banks")};
loadModelFrom(banks);
// selectCurrentPreset();
// we could now change some initial settings..
@ -93,15 +97,63 @@ TableComponent::~TableComponent() {
valueTreeState.state.removeListener(this);
}
void TableComponent::loadModelFrom(ValueTree& presets) {
// void TableComponent::loadModelFrom(ValueTree& presets) {
// rows.clear();
// int numChildren{presets.getNumChildren()};
// for(int i{0}; i<numChildren; i++) {
// ValueTree child{presets.getChild(i)};
// int num{child.getProperty("num")};
// String name{child.getProperty("name")};
// rows.emplace_back(num, name);
// }
// table.deselectAllRows();
// table.updateContent();
// table.getHeader().setSortColumnId(0, true);
// selectCurrentPreset();
// table.repaint();
// }
void TableComponent::loadModelFrom(ValueTree& banks) {
rows.clear();
int numChildren{presets.getNumChildren()};
for(int i{0}; i<numChildren; i++) {
ValueTree child{presets.getChild(i)};
int num{child.getProperty("num")};
String name{child.getProperty("name")};
rows.emplace_back(num, name);
banksToPresets.clear();
int banksChildren{banks.getNumChildren()};
for(int bankIx{0}; bankIx<banksChildren; bankIx++) {
// vector<TableRow> presets;
ValueTree bank{banks.getChild(bankIx)};
int bankNum{bank.getProperty("num")};
int bankChildren{bank.getNumChildren()};
for(int presetIx{0}; presetIx<bankChildren; presetIx++) {
ValueTree preset{bank.getChild(presetIx)};
int presetNum{preset.getProperty("num")};
String presetName{preset.getProperty("name")};
// presets.emplace_back(presetNum, presetName);
TableRow row{presetNum, move(presetName)};
// banksToPresets.insert(BanksToPresets::value_type(bankNum, move(row)));
banksToPresets.emplace(bankNum, move(row));
}
}
{
RangedAudioParameter *param{valueTreeState.getParameter("bank")};
jassert(dynamic_cast<AudioParameterInt*>(param) != nullptr);
AudioParameterInt* castParam{dynamic_cast<AudioParameterInt*>(param)};
int bank{castParam->get()};
BanksToPresets::iterator lowerBound{banksToPresets.lower_bound(bank)};
BanksToPresets::iterator upperBound{banksToPresets.upper_bound(bank)};
// basic syntaxes for a lambda which return's a pair's .second
// https://stackoverflow.com/questions/2568194/populate-a-vector-with-all-multimap-values-with-a-given-key
// shorter syntax with mem_fn()
// https://stackoverflow.com/a/36775400/5257399
transform(
lowerBound,
upperBound,
back_inserter(rows),
mem_fn(&BanksToPresets::value_type::second)
// [](BanksToPresets::value_type element){return element.second;}
);
}
table.deselectAllRows();
table.updateContent();
table.getHeader().setSortColumnId(0, true);
@ -123,7 +175,12 @@ void TableComponent::parameterChanged(const String& parameterID, float newValue)
void TableComponent::valueTreePropertyChanged(
ValueTree& treeWhosePropertyHasChanged,
const Identifier& property) {
if (treeWhosePropertyHasChanged.getType() == StringRef("presets")) {
// if (treeWhosePropertyHasChanged.getType() == StringRef("presets")) {
// if (property == StringRef("synthetic")) {
// loadModelFrom(treeWhosePropertyHasChanged);
// }
// }
if (treeWhosePropertyHasChanged.getType() == StringRef("banks")) {
if (property == StringRef("synthetic")) {
loadModelFrom(treeWhosePropertyHasChanged);
}