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Diffstat (limited to 'examples/Info/InfoExampleUI.cpp')
| -rw-r--r-- | examples/Info/InfoExampleUI.cpp | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/examples/Info/InfoExampleUI.cpp b/examples/Info/InfoExampleUI.cpp new file mode 100644 index 00000000..0ba56496 --- /dev/null +++ b/examples/Info/InfoExampleUI.cpp @@ -0,0 +1,222 @@ +/* + * DISTRHO Plugin Framework (DPF) + * Copyright (C) 2012-2015 Filipe Coelho <falktx@falktx.com> + * + * Permission to use, copy, modify, and/or distribute this software for any purpose with + * or without fee is hereby granted, provided that the above copyright notice and this + * permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD + * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL + * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER + * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "DistrhoPluginInfo.h" + +#include "DistrhoUI.hpp" + +START_NAMESPACE_DISTRHO + +// ----------------------------------------------------------------------------------------------------------- + +class InfoExampleUI : public UI +{ +public: + InfoExampleUI() + : UI(405, 256) + { + std::memset(fParameters, 0, sizeof(float)*kParameterCount); + std::memset(fStrBuf, 0, sizeof(char)*(0xff+1)); + + fSampleRate = getSampleRate(); + fFont = createFontFromFile("sans", "/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf"); + } + +protected: + /* -------------------------------------------------------------------------------------------------------- + * DSP/Plugin Callbacks */ + + /** + A parameter has changed on the plugin side. + This is called by the host to inform the UI about parameter changes. + */ + void parameterChanged(uint32_t index, float value) override + { + fParameters[index] = value; + repaint(); + } + + /* -------------------------------------------------------------------------------------------------------- + * DSP/Plugin Callbacks (optional) */ + + /** + Optional callback to inform the UI about a sample rate change on the plugin side. + */ + void sampleRateChanged(double newSampleRate) override + { + fSampleRate = newSampleRate; + repaint(); + } + + /* -------------------------------------------------------------------------------------------------------- + * Widget Callbacks */ + + /** + The NanoVG drawing function. + */ + void onNanoDisplay() override + { + static const float lineHeight = 20; + + fontSize(15.0f); + textLineHeight(lineHeight); + + float x = 0; + float y = 15; + + // buffer size + drawLeft(x, y, "Buffer Size:"); + drawRight(x, y, getTextBufInt(fParameters[kParameterBufferSize])); + y+=lineHeight; + + // sample rate + drawLeft(x, y, "Sample Rate:"); + drawRight(x, y, getTextBufFloat(fSampleRate)); + y+=lineHeight; + + // nothing + y+=lineHeight; + + // time stuff + drawLeft(x, y, "Playing:"); + drawRight(x, y, (fParameters[kParameterTimePlaying] > 0.5f) ? "Yes" : "No"); + y+=lineHeight; + + drawLeft(x, y, "Frame:"); + drawRight(x, y, getTextBufInt(fParameters[kParameterTimeFrame])); + y+=lineHeight; + + drawLeft(x, y, "Time:"); + drawRight(x, y, getTextBufTime(fParameters[kParameterTimeFrame])); + y+=lineHeight; + + // BBT + x = 200; + y = 15; + + const bool validBBT(fParameters[kParameterTimeValidBBT] > 0.5f); + drawLeft(x, y, "BBT Valid:"); + drawRight(x, y, validBBT ? "Yes" : "No"); + y+=lineHeight; + + if (! validBBT) + return; + + drawLeft(x, y, "Bar:"); + drawRight(x, y, getTextBufInt(fParameters[kParameterTimeBar])); + y+=lineHeight; + + drawLeft(x, y, "Beat:"); + drawRight(x, y, getTextBufInt(fParameters[kParameterTimeBeat])); + y+=lineHeight; + + drawLeft(x, y, "Tick:"); + drawRight(x, y, getTextBufInt(fParameters[kParameterTimeTick])); + y+=lineHeight; + + drawLeft(x, y, "Bar Start Tick:"); + drawRight(x, y, getTextBufFloat(fParameters[kParameterTimeBarStartTick])); + y+=lineHeight; + + drawLeft(x, y, "Beats Per Bar:"); + drawRight(x, y, getTextBufFloat(fParameters[kParameterTimeBeatsPerBar])); + y+=lineHeight; + + drawLeft(x, y, "Beat Type:"); + drawRight(x, y, getTextBufFloat(fParameters[kParameterTimeBeatType])); + y+=lineHeight; + + drawLeft(x, y, "Ticks Per Beat:"); + drawRight(x, y, getTextBufFloat(fParameters[kParameterTimeTicksPerBeat])); + y+=lineHeight; + + drawLeft(x, y, "BPM:"); + drawRight(x, y, getTextBufFloat(fParameters[kParameterTimeBeatsPerMinute])); + y+=lineHeight; + } + + // ------------------------------------------------------------------------------------------------------- + +private: + // Parameters + float fParameters[kParameterCount]; + double fSampleRate; + + // font + FontId fFont; + + // temp buf for text + char fStrBuf[0xff+1]; + + // helpers for putting text into fStrBuf and returning it + const char* getTextBufInt(const int value) + { + std::snprintf(fStrBuf, 0xff, "%i", value); + return fStrBuf; + } + + const char* getTextBufFloat(const float value) + { + std::snprintf(fStrBuf, 0xff, "%.1f", value); + return fStrBuf; + } + + const char* getTextBufTime(const uint64_t frame) + { + const uint32_t time = frame / uint64_t(fSampleRate); + const uint32_t secs = time % 60; + const uint32_t mins = (time / 60) % 60; + const uint32_t hrs = (time / 3600) % 60; + std::snprintf(fStrBuf, 0xff, "%02i:%02i:%02i", hrs, mins, secs); + return fStrBuf; + } + + // helpers for drawing text + void drawLeft(const float x, const float y, const char* const text) + { + beginPath(); + fillColor(200, 200, 200); + textAlign(ALIGN_RIGHT|ALIGN_TOP); + textBox(x, y, 100, text); + closePath(); + } + + void drawRight(const float x, const float y, const char* const text) + { + beginPath(); + fillColor(255, 255, 255); + textAlign(ALIGN_LEFT|ALIGN_TOP); + textBox(x+105, y, 100, text); + closePath(); + } + + /** + Set our UI class as non-copyable and add a leak detector just in case. + */ + DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(InfoExampleUI) +}; + +/* ------------------------------------------------------------------------------------------------------------ + * UI entry point, called by DPF to create a new UI instance. */ + +UI* createUI() +{ + return new InfoExampleUI(); +} + +// ----------------------------------------------------------------------------------------------------------- + +END_NAMESPACE_DISTRHO |