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Cairo example (#108) 

* Rewrite the Cairo example in matching code style

* Use of ScopedPointer in the Cairo example
pull/128/head
JP Cimalando Filipe Coelho <falktx@falktx.com> 6 years ago
parent
1f1302c319
commit
943d9cdc1f
11 changed files with 192 additions and 215 deletions
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  1. +89
    -0
      examples/CairoUI/CairoExamplePlugin.cpp
  2. +70
    -0
      examples/CairoUI/CairoExampleUI.cpp
  3. +10
    -7
      examples/CairoUI/DemoWidgetBanner.cpp
  4. +3
    -2
      examples/CairoUI/DemoWidgetBanner.hpp
  5. +11
    -8
      examples/CairoUI/DemoWidgetClickable.cpp
  6. +5
    -4
      examples/CairoUI/DemoWidgetClickable.hpp
  7. +4
    -4
      examples/CairoUI/Makefile
  8. +0
    -71
      examples/CairoUI/PluginMain.cc
  9. +0
    -31
      examples/CairoUI/PluginMain.h
  10. +0
    -56
      examples/CairoUI/PluginUI.cc
  11. +0
    -32
      examples/CairoUI/PluginUI.h

+ 89
- 0
examples/CairoUI/CairoExamplePlugin.cpp View File

@@ -0,0 +1,89 @@
/*
* DISTRHO Plugin Framework (DPF)
* Copyright (C) 2012-2019 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 "DistrhoPlugin.hpp"

#include <string.h>

START_NAMESPACE_DISTRHO

class CairoExamplePlugin : public Plugin
{
public:
CairoExamplePlugin()
: Plugin(0, 0, 0)
{
}

const char* getLabel() const
{
return "Cairo DPF Example";
}

const char* getMaker() const
{
return "Jean Pierre Cimalando";
}

const char* getLicense() const
{
return "ISC";
}

uint32_t getVersion() const
{
return 0;
}

int64_t getUniqueId() const
{
return 0;
}

void initParameter(uint32_t index, Parameter& parameter)
{
// unused
(void)index;
(void)parameter;
}

float getParameterValue(uint32_t index) const
{
return 0;

// unused
(void)index;
}

void setParameterValue(uint32_t index, float value)
{
// unused
(void)index;
(void)value;
}

void run(const float** inputs, float** outputs, uint32_t frames)
{
memcpy(outputs[0], inputs[0], frames * sizeof(float));
}
};

Plugin* createPlugin()
{
return new CairoExamplePlugin;
}

END_NAMESPACE_DISTRHO

+ 70
- 0
examples/CairoUI/CairoExampleUI.cpp View File

@@ -0,0 +1,70 @@
/*
* DISTRHO Plugin Framework (DPF)
* Copyright (C) 2012-2019 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 "DistrhoUI.hpp"
#include "DemoWidgetBanner.hpp"
#include "DemoWidgetClickable.hpp"
#include "Window.hpp"

START_NAMESPACE_DISTRHO

class CairoExampleUI : public UI
{
public:
CairoExampleUI()
: UI(200, 200)
{
DemoWidgetClickable* widgetClickable = new DemoWidgetClickable(this);
fWidgetClickable = widgetClickable;
widgetClickable->setSize(50, 50);
widgetClickable->setAbsolutePos(100, 100);

DemoWidgetBanner* widgetBanner = new DemoWidgetBanner(this);
fWidgetBanner = widgetBanner;
widgetBanner->setSize(180, 80);
widgetBanner->setAbsolutePos(10, 10);
}

~CairoExampleUI()
{
}

void onDisplay()
{
cairo_t* cr = getParentWindow().getGraphicsContext().cairo;

cairo_set_source_rgb(cr, 1.0, 0.8, 0.5);
cairo_paint(cr);
}

void parameterChanged(uint32_t index, float value)
{
// unused
(void)index;
(void)value;
}

private:
ScopedPointer<DemoWidgetClickable> fWidgetClickable;
ScopedPointer<DemoWidgetBanner> fWidgetBanner;
};

UI* createUI()
{
return new CairoExampleUI;
}

END_NAMESPACE_DISTRHO

examples/CairoUI/DemoWidgetBanner.cc → examples/CairoUI/DemoWidgetBanner.cpp View File

@@ -14,12 +14,12 @@
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/ */


#include "DemoWidgetBanner.h"
#include "DemoWidgetBanner.hpp"


#include "Cairo.hpp" #include "Cairo.hpp"
#include "Window.hpp" #include "Window.hpp"


static const char *banner =
static const char* banner =
" " " "
" * * * * * " " * * * * * "
" ** ** * * * * " " ** ** * * * * "
@@ -44,19 +44,20 @@ static const char *banner =
" ***** * * " " ***** * * "
" "; " ";


enum {
enum
{
rows = 23, rows = 23,
columns = 72, columns = 72,
}; };


DemoWidgetBanner::DemoWidgetBanner(Widget *group)
DemoWidgetBanner::DemoWidgetBanner(Widget* group)
: Widget(group) : Widget(group)
{ {
} }


void DemoWidgetBanner::onDisplay() void DemoWidgetBanner::onDisplay()
{ {
cairo_t *cr = getParentWindow().getGraphicsContext().cairo;
cairo_t* cr = getParentWindow().getGraphicsContext().cairo;


Point<int> pt = getAbsolutePos(); Point<int> pt = getAbsolutePos();
Size<uint> sz = getSize(); Size<uint> sz = getSize();
@@ -70,8 +71,10 @@ void DemoWidgetBanner::onDisplay()
double radius = 0.5 * diameter; double radius = 0.5 * diameter;
double xoff = 0; double xoff = 0;
double yoff = 0.5 * (h - rows * diameter); double yoff = 0.5 * (h - rows * diameter);
for (int r = 0; r < rows; ++r) {
for (int c = 0; c < columns; ++c) {
for (int r = 0; r < rows; ++r)
{
for (int c = 0; c < columns; ++c)
{
double cx = x + xoff + radius + c * diameter; double cx = x + xoff + radius + c * diameter;
double cy = y + yoff + radius + r * diameter; double cy = y + yoff + radius + r * diameter;



examples/CairoUI/DemoWidgetBanner.h → examples/CairoUI/DemoWidgetBanner.hpp View File

@@ -16,8 +16,9 @@


#include "Widget.hpp" #include "Widget.hpp"


class DemoWidgetBanner : public Widget {
class DemoWidgetBanner : public Widget
{
public: public:
explicit DemoWidgetBanner(Widget *group);
explicit DemoWidgetBanner(Widget* group);
void onDisplay() override; void onDisplay() override;
}; };

examples/CairoUI/DemoWidgetClickable.cc → examples/CairoUI/DemoWidgetClickable.cpp View File

@@ -14,19 +14,19 @@
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/ */


#include "DemoWidgetClickable.h"
#include "DemoWidgetClickable.hpp"


#include "Cairo.hpp" #include "Cairo.hpp"
#include "Window.hpp" #include "Window.hpp"


DemoWidgetClickable::DemoWidgetClickable(Widget *group)
DemoWidgetClickable::DemoWidgetClickable(Widget* group)
: Widget(group) : Widget(group)
{ {
} }


void DemoWidgetClickable::onDisplay() void DemoWidgetClickable::onDisplay()
{ {
cairo_t *cr = getParentWindow().getGraphicsContext().cairo;
cairo_t* cr = getParentWindow().getGraphicsContext().cairo;


Point<int> pt = getAbsolutePos(); Point<int> pt = getAbsolutePos();
Size<uint> sz = getSize(); Size<uint> sz = getSize();
@@ -36,7 +36,8 @@ void DemoWidgetClickable::onDisplay()
int w = sz.getWidth(); int w = sz.getWidth();
int h = sz.getHeight(); int h = sz.getHeight();


switch (colorid_) {
switch (fColorId)
{
case 0: case 0:
cairo_set_source_rgb(cr, 0.75, 0.0, 0.0); cairo_set_source_rgb(cr, 0.75, 0.0, 0.0);
break; break;
@@ -61,17 +62,19 @@ void DemoWidgetClickable::onDisplay()
cairo_stroke(cr); cairo_stroke(cr);
} }


bool DemoWidgetClickable::onMouse(const MouseEvent &event)
bool DemoWidgetClickable::onMouse(const MouseEvent& event)
{ {
if (event.press) {
if (event.press)
{
int w = getWidth(); int w = getWidth();
int h = getHeight(); int h = getHeight();
int mx = event.pos.getX(); int mx = event.pos.getX();
int my = event.pos.getY(); int my = event.pos.getY();


bool inside = mx >= 0 && my >= 0 && mx < w && my < h; bool inside = mx >= 0 && my >= 0 && mx < w && my < h;
if (inside) {
colorid_ = (colorid_ + 1) % 3;
if (inside)
{
fColorId = (fColorId + 1) % 3;
repaint(); repaint();
} }
} }

examples/CairoUI/DemoWidgetClickable.h → examples/CairoUI/DemoWidgetClickable.hpp View File

@@ -16,12 +16,13 @@


#include "Widget.hpp" #include "Widget.hpp"


class DemoWidgetClickable : public Widget {
class DemoWidgetClickable : public Widget
{
public: public:
explicit DemoWidgetClickable(Widget *group);
explicit DemoWidgetClickable(Widget* group);
void onDisplay() override; void onDisplay() override;
bool onMouse(const MouseEvent &event) override;
bool onMouse(const MouseEvent& event) override;


private: private:
unsigned colorid_ = 0;
unsigned fColorId = 0;
}; };

+ 4
- 4
examples/CairoUI/Makefile View File

@@ -13,12 +13,12 @@ NAME = d_cairoui
# Files to build # Files to build


FILES_DSP = \ FILES_DSP = \
PluginMain.cc
CairoExamplePlugin.cpp


FILES_UI = \ FILES_UI = \
DemoWidgetBanner.cc \
DemoWidgetClickable.cc \
PluginUI.cc
DemoWidgetBanner.cpp \
DemoWidgetClickable.cpp \
CairoExampleUI.cpp


# -------------------------------------------------------------- # --------------------------------------------------------------
# Do some magic # Do some magic


+ 0
- 71
examples/CairoUI/PluginMain.cc View File

@@ -1,71 +0,0 @@
/*
* DISTRHO Plugin Framework (DPF)
* Copyright (C) 2012-2019 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 "PluginMain.h"
#include <string.h>

ExamplePlugin::ExamplePlugin()
: Plugin(0, 0, 0)
{
}

const char *ExamplePlugin::getLabel() const
{
return "Cairo DPF Example";
}

const char *ExamplePlugin::getMaker() const
{
return "Jean Pierre Cimalando";
}

const char *ExamplePlugin::getLicense() const
{
return "ISC";
}

uint32_t ExamplePlugin::getVersion() const
{
return 0;
}

int64_t ExamplePlugin::getUniqueId() const
{
return 0;
}

void ExamplePlugin::initParameter(uint32_t, Parameter &)
{
}

float ExamplePlugin::getParameterValue(uint32_t) const
{
return 0;
}

void ExamplePlugin::setParameterValue(uint32_t, float)
{
}

void ExamplePlugin::run(const float **inputs, float **outputs, uint32_t frames)
{
memcpy(outputs[0], inputs[0], frames * sizeof(float));
}

Plugin *DISTRHO::createPlugin()
{
return new ExamplePlugin;
}

+ 0
- 31
examples/CairoUI/PluginMain.h View File

@@ -1,31 +0,0 @@
/*
* DISTRHO Plugin Framework (DPF)
* Copyright (C) 2012-2019 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 "DistrhoPlugin.hpp"

class ExamplePlugin : public Plugin {
public:
ExamplePlugin();
const char *getLabel() const override;
const char *getMaker() const override;
const char *getLicense() const override;
uint32_t getVersion() const override;
int64_t getUniqueId() const override;
void initParameter(uint32_t index, Parameter &parameter) override;
float getParameterValue(uint32_t index) const override;
void setParameterValue(uint32_t index, float value) override;
void run(const float **inputs, float **outputs, uint32_t frames) override;
};

+ 0
- 56
examples/CairoUI/PluginUI.cc View File

@@ -1,56 +0,0 @@
/*
* DISTRHO Plugin Framework (DPF)
* Copyright (C) 2012-2019 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 "PluginUI.h"
#include "DemoWidgetClickable.h"
#include "DemoWidgetBanner.h"

#include "Window.hpp"

ExampleUI::ExampleUI()
: UI(200, 200)
{
DemoWidgetClickable *widget_clickable = new DemoWidgetClickable(this);
widget_clickable_.reset(widget_clickable);
widget_clickable->setSize(50, 50);
widget_clickable->setAbsolutePos(100, 100);

DemoWidgetBanner *widget_banner = new DemoWidgetBanner(this);
widget_banner_.reset(widget_banner);
widget_banner->setSize(180, 80);
widget_banner->setAbsolutePos(10, 10);
}

ExampleUI::~ExampleUI()
{
}

void ExampleUI::onDisplay()
{
cairo_t *cr = getParentWindow().getGraphicsContext().cairo;

cairo_set_source_rgb(cr, 1.0, 0.8, 0.5);
cairo_paint(cr);
}

void ExampleUI::parameterChanged(uint32_t, float)
{
}

UI *DISTRHO::createUI()
{
return new ExampleUI;
}

+ 0
- 32
examples/CairoUI/PluginUI.h View File

@@ -1,32 +0,0 @@
/*
* DISTRHO Plugin Framework (DPF)
* Copyright (C) 2012-2019 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 "DistrhoUI.hpp"
#include <memory>
class DemoWidgetClickable;
class DemoWidgetBanner;

class ExampleUI : public UI {
public:
ExampleUI();
~ExampleUI();
void onDisplay() override;
void parameterChanged(uint32_t index, float value) override;

private:
std::unique_ptr<DemoWidgetClickable> widget_clickable_;
std::unique_ptr<DemoWidgetBanner> widget_banner_;
};

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