Gravity: Add ColorItem and RainbowItem

instead of using boring StringItems

ColorItem draws a small colored rectangle left of the string
RainbowItem draws a rainbow colored rectangle left of the string

src/add-ons/screen_savers/gravity/ColorItem.cpp

@@ -0,0 +1,96 @@
+/*
+ * Copyright 2002-2016 Haiku, Inc. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		John Scipione, [email protected]
+ *
+ * Based on ColorWhichIcon by DarkWyrm ([email protected])
+ */
+
+
+#include "ColorItem.h"
+
+#include <math.h>
+
+#include <ControlLook.h>
+#include <View.h>
+
+
+// golden ratio
+#ifdef M_PHI
+#	undef M_PHI
+#endif
+#define M_PHI 1.61803398874989484820
+
+
+//	#pragma mark - ColorItem
+
+
+ColorItem::ColorItem(const char* string, rgb_color color)
+	:
+	BStringItem(string, 0, false),
+	fColor(color)
+{
+}
+
+
+void
+ColorItem::DrawItem(BView* owner, BRect frame, bool complete)
+{
+	rgb_color highColor = owner->HighColor();
+	rgb_color lowColor = owner->LowColor();
+
+	if (IsSelected() || complete) {
+		if (IsSelected()) {
+			owner->SetHighColor(ui_color(B_LIST_SELECTED_BACKGROUND_COLOR));
+			owner->SetLowColor(owner->HighColor());
+		} else
+			owner->SetHighColor(lowColor);
+
+		owner->FillRect(frame);
+	}
+
+	float spacer = floorf(be_control_look->DefaultItemSpacing() / 2);
+
+	BRect colorRect(frame);
+	colorRect.InsetBy(2.0f, 2.0f);
+	colorRect.left += spacer;
+	colorRect.right = colorRect.left + colorRect.Height() * M_PHI;
+
+	// draw the colored box
+	owner->SetHighColor(fColor);
+	owner->FillRect(colorRect);
+
+	// draw the border
+	owner->SetHighColor(ui_color(B_CONTROL_BORDER_COLOR));
+	owner->StrokeRect(colorRect);
+
+	// draw the string
+	owner->MovePenTo(colorRect.right + spacer, frame.top + BaselineOffset());
+
+	if (!IsEnabled()) {
+		rgb_color textColor = ui_color(B_LIST_ITEM_TEXT_COLOR);
+		if (textColor.red + textColor.green + textColor.blue > 128 * 3)
+			owner->SetHighColor(tint_color(textColor, B_DARKEN_2_TINT));
+		else
+			owner->SetHighColor(tint_color(textColor, B_LIGHTEN_2_TINT));
+	} else {
+		if (IsSelected())
+			owner->SetHighColor(ui_color(B_LIST_SELECTED_ITEM_TEXT_COLOR));
+		else
+			owner->SetHighColor(ui_color(B_LIST_ITEM_TEXT_COLOR));
+	}
+
+	owner->DrawString(Text());
+
+	owner->SetHighColor(highColor);
+	owner->SetLowColor(lowColor);
+}
+
+
+void
+ColorItem::SetColor(rgb_color color)
+{
+	fColor = color;
+}

src/add-ons/screen_savers/gravity/ColorItem.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2002-2016 Haiku, Inc. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		John Scipione, [email protected]
+ *
+ * Based on ColorWhichIcon by DarkWyrm, [email protected]
+ */
+#ifndef _COLOR_ITEM_H
+#define _COLOR_ITEM_H
+
+
+#include <InterfaceDefs.h>
+#include <StringItem.h>
+
+
+class ColorItem : public BStringItem {
+public:
+							ColorItem(const char* string, rgb_color color);
+
+	virtual	void			DrawItem(BView* owner, BRect frame, bool complete);
+	virtual	void			SetColor(rgb_color color);
+
+private:
+			rgb_color		fColor;
+};
+
+
+#endif	// _COLOR_ITEM_H

src/add-ons/screen_savers/gravity/ConfigView.cpp

@@ -19,7 +19,9 @@
 #include <StringView.h>
 #include <View.h>
 
+#include "ColorItem.h"
 #include "Gravity.h"
+#include "RainbowItem.h"
 
 
 static const int32 kMsgSize = 'size';
@@ -43,14 +45,13 @@ ConfigView::ConfigView(BRect frame, Gravity* parent)
 	SetViewUIColor(B_PANEL_BACKGROUND_COLOR);
 
 	fShadeList->SetSelectionMessage(new BMessage(kMsgShade));
-
-	fShadeList->AddItem(new BStringItem("Red"));
-	fShadeList->AddItem(new BStringItem("Green"));
-	fShadeList->AddItem(new BStringItem("Blue"));
-	fShadeList->AddItem(new BStringItem("Orange"));
-	fShadeList->AddItem(new BStringItem("Purple"));
-	fShadeList->AddItem(new BStringItem("White"));
-	fShadeList->AddItem(new BStringItem("Rainbow"));
+	fShadeList->AddItem(new ColorItem("Red", (rgb_color){ 255, 65, 54 }));
+	fShadeList->AddItem(new ColorItem("Green", (rgb_color){ 46, 204, 64 }));
+	fShadeList->AddItem(new ColorItem("Blue", (rgb_color){ 0, 116, 217 }));
+	fShadeList->AddItem(new ColorItem("Orange", (rgb_color){ 255, 133, 27 }));
+	fShadeList->AddItem(new ColorItem("Purple", (rgb_color){ 177, 13, 201 }));
+	fShadeList->AddItem(new ColorItem("White", (rgb_color){ 255, 255, 255 }));
+	fShadeList->AddItem(new RainbowItem("Rainbow"));
 
 	fShadeList->Select(parent->Config.ShadeID);
 

src/add-ons/screen_savers/gravity/Jamfile

@@ -10,11 +10,13 @@ if $(TARGET_GCC_VERSION_$(TARGET_PACKAGING_ARCH)[1]) < 3 {
 AddResources Gravity : Gravity.rdef ;
 
 local sources =
+	ColorItem.cpp
 	ConfigView.cpp
 	Gravity.cpp
 	GravitySource.cpp
 	GravityView.cpp
 	Particle.cpp
+	RainbowItem.cpp
 	main.cpp
 ;
 

src/add-ons/screen_savers/gravity/RainbowItem.cpp

@@ -0,0 +1,97 @@
+/*
+ * Copyright 2006 Haiku, Inc. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		John Scipione, [email protected]
+ */
+
+
+#include "RainbowItem.h"
+
+#include <math.h>
+
+#include <ControlLook.h>
+#include <GradientLinear.h>
+#include <InterfaceDefs.h>
+#include <View.h>
+
+
+// golden ratio
+#ifdef M_PHI
+#	undef M_PHI
+#endif
+#define M_PHI 1.61803398874989484820
+
+
+//	#pragma mark - RainbowItem
+
+
+RainbowItem::RainbowItem(const char* string)
+	:
+	BStringItem(string, 0, false)
+{
+}
+
+
+void
+RainbowItem::DrawItem(BView* owner, BRect frame, bool complete)
+{
+	rgb_color highColor = owner->HighColor();
+	rgb_color lowColor = owner->LowColor();
+
+	if (IsSelected() || complete) {
+		if (IsSelected()) {
+			owner->SetHighColor(ui_color(B_LIST_SELECTED_BACKGROUND_COLOR));
+			owner->SetLowColor(owner->HighColor());
+		} else
+			owner->SetHighColor(lowColor);
+
+		owner->FillRect(frame);
+	}
+
+	float spacer = floorf(be_control_look->DefaultItemSpacing() / 2);
+
+	BRect colorRect(frame);
+	colorRect.InsetBy(2.0f, 2.0f);
+	colorRect.left += spacer;
+	colorRect.right = colorRect.left + colorRect.Height() * M_PHI;
+
+	// draw the rainbow
+	BGradientLinear gradient;
+	gradient.AddColor((rgb_color){ 255, 65,  54  }, 0);   // red
+	gradient.AddColor((rgb_color){ 255, 133, 27  }, 60);  // orange
+	gradient.AddColor((rgb_color){ 255, 220, 0   }, 102); // yellow
+	gradient.AddColor((rgb_color){ 46,  204, 64  }, 153); // green
+	gradient.AddColor((rgb_color){ 0,   116, 217 }, 195); // blue
+	// indigo ;)
+	gradient.AddColor((rgb_color){ 177, 13,  201 }, 255); // violet
+	gradient.SetStart(colorRect.LeftTop());
+	gradient.SetEnd(colorRect.RightBottom());
+	owner->FillRect(colorRect, gradient);
+
+	// draw the border
+	owner->SetHighColor(ui_color(B_CONTROL_BORDER_COLOR));
+	owner->StrokeRect(colorRect);
+
+	// draw the string
+	owner->MovePenTo(colorRect.right + spacer, frame.top + BaselineOffset());
+
+	if (!IsEnabled()) {
+		rgb_color textColor = ui_color(B_LIST_ITEM_TEXT_COLOR);
+		if (textColor.red + textColor.green + textColor.blue > 128 * 3)
+			owner->SetHighColor(tint_color(textColor, B_DARKEN_2_TINT));
+		else
+			owner->SetHighColor(tint_color(textColor, B_LIGHTEN_2_TINT));
+	} else {
+		if (IsSelected())
+			owner->SetHighColor(ui_color(B_LIST_SELECTED_ITEM_TEXT_COLOR));
+		else
+			owner->SetHighColor(ui_color(B_LIST_ITEM_TEXT_COLOR));
+	}
+
+	owner->DrawString(Text());
+
+	owner->SetHighColor(highColor);
+	owner->SetLowColor(lowColor);
+}

src/add-ons/screen_savers/gravity/RainbowItem.h

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2001-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		DarkWyrm, [email protected]
+ *		Rene Gollent, [email protected]
+ *		Ryan Leavengood, [email protected]
+ *		John Scipione, [email protected]
+ */
+#ifndef _RAINBOW_ITEM_H
+#define _RAINBOW_ITEM_H
+
+
+#include <StringItem.h>
+
+
+class RainbowItem : public BStringItem {
+public:
+							RainbowItem(const char* string);
+
+	virtual	void			DrawItem(BView* owner, BRect frame, bool complete);
+};
+
+
+#endif	// _RAINBOW_ITEM_H