* Copyright 2009-2024 Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
* DarkWyrm, darkwyrm@earthlink.net
* John Scipione, jscipione@gmail.com
*/
#include <ColorPreview.h>
#include <stdio.h>
#include <algorithm>
#include <iostream>
#include <Application.h>
#include <Bitmap.h>
#include <Message.h>
#include <MessageRunner.h>
#include <String.h>
#include <Window.h>
static const int32 kMsgMessageRunner = 'MsgR';
static const rgb_color kRed = make_color(255, 0, 0, 255);
namespace BPrivate {
BColorPreview::BColorPreview(const char* name, const char* label, BMessage* message, uint32 flags)
:
BControl(name, label, message, flags),
fColor(kRed),
fMessageRunner(NULL)
{
SetExplicitSize(BSize(roundf(StringWidth("M") * 6), roundf(StringWidth("M") * 6)));
SetExplicitAlignment(BAlignment(B_ALIGN_HORIZONTAL_CENTER, B_ALIGN_VERTICAL_CENTER));
}
BColorPreview::~BColorPreview()
{
}
void
BColorPreview::Draw(BRect updateRect)
{
rgb_color color = fColor;
rgb_color bg = ui_color(B_PANEL_BACKGROUND_COLOR);
rgb_color outer = tint_color(bg, B_DARKEN_1_TINT);
rgb_color inner = tint_color(bg, B_DARKEN_3_TINT);
rgb_color light = tint_color(bg, B_LIGHTEN_MAX_TINT);
BRect bounds(Bounds());
BeginLineArray(4);
AddLine(BPoint(bounds.left, bounds.bottom), BPoint(bounds.left, bounds.top), outer);
AddLine(BPoint(bounds.left + 1, bounds.top), BPoint(bounds.right, bounds.top), outer);
AddLine(BPoint(bounds.right, bounds.top + 1), BPoint(bounds.right, bounds.bottom), light);
AddLine(BPoint(bounds.right - 1, bounds.bottom), BPoint(bounds.left + 1, bounds.bottom),
light);
EndLineArray();
bounds.InsetBy(1, 1);
BeginLineArray(4);
AddLine(BPoint(bounds.left, bounds.bottom), BPoint(bounds.left, bounds.top), inner);
AddLine(BPoint(bounds.left + 1, bounds.top), BPoint(bounds.right, bounds.top), inner);
AddLine(BPoint(bounds.right, bounds.top + 1), BPoint(bounds.right, bounds.bottom), bg);
AddLine(BPoint(bounds.right - 1, bounds.bottom), BPoint(bounds.left + 1, bounds.bottom), bg);
EndLineArray();
bounds.InsetBy(1, 1);
SetHighColor(color);
FillRect(bounds);
}
status_t
BColorPreview::Invoke(BMessage* message)
{
if (message == NULL)
message = new BMessage(B_PASTE);
if (message->CountNames(B_RGB_COLOR_TYPE) == 0)
message->AddData("RGBColor", B_RGB_COLOR_TYPE, &fColor, sizeof(fColor));
return BControl::Invoke(message);
}
void
BColorPreview::MessageReceived(BMessage* message)
{
if (message->WasDropped()) {
char* name;
type_code type;
rgb_color* color;
ssize_t size;
if (message->GetInfo(B_RGB_COLOR_TYPE, 0, &name, &type) == B_OK
&& message->FindData(name, type, (const void**)&color, &size) == B_OK) {
SetColor(*color);
Invoke(message);
}
}
switch (message->what) {
case kMsgMessageRunner:
{
BPoint where;
uint32 buttons;
GetMouse(&where, &buttons);
_DragColor(where);
break;
}
default:
BControl::MessageReceived(message);
break;
}
}
void
BColorPreview::MouseDown(BPoint where)
{
fMessageRunner = new BMessageRunner(this, new BMessage(kMsgMessageRunner), 300000, 1);
BControl::MouseDown(where);
}
void
BColorPreview::MouseMoved(BPoint where, uint32 transit, const BMessage* message)
{
if (fMessageRunner != NULL)
_DragColor(where);
BControl::MouseMoved(where, transit, message);
}
void
BColorPreview::MouseUp(BPoint where)
{
delete fMessageRunner;
fMessageRunner = NULL;
BControl::MouseUp(where);
}
rgb_color
BColorPreview::Color() const
{
return fColor;
}
void
BColorPreview::SetColor(rgb_color color)
{
color.alpha = 255;
fColor = color;
Invalidate();
}
void
BColorPreview::_DragColor(BPoint where)
{
BString hexStr;
hexStr.SetToFormat("#%.2X%.2X%.2X", fColor.red, fColor.green, fColor.blue);
BMessage message(B_PASTE);
message.AddData("text/plain", B_MIME_TYPE, hexStr.String(), hexStr.Length());
message.AddData("RGBColor", B_RGB_COLOR_TYPE, &fColor, sizeof(fColor));
message.AddMessenger("be:sender", BMessenger(this));
message.AddPointer("source", this);
message.AddInt64("when", (int64)system_time());
BRect rect(0, 0, 16, 16);
BBitmap* bitmap = new BBitmap(rect, B_RGB32, true);
if (bitmap->Lock()) {
BView* view = new BView(rect, "", B_FOLLOW_NONE, B_WILL_DRAW);
bitmap->AddChild(view);
view->SetHighColor(B_TRANSPARENT_COLOR);
view->FillRect(view->Bounds());
++rect.top;
++rect.left;
view->SetHighColor(0, 0, 0, 100);
view->FillRect(rect);
rect.OffsetBy(-1, -1);
int32 red = std::min(255, (int)(1.2 * fColor.red + 40));
int32 green = std::min(255, (int)(1.2 * fColor.green + 40));
int32 blue = std::min(255, (int)(1.2 * fColor.blue + 40));
view->SetHighColor(red, green, blue);
view->StrokeRect(rect);
++rect.left;
++rect.top;
red = (int32)(0.8 * fColor.red);
green = (int32)(0.8 * fColor.green);
blue = (int32)(0.8 * fColor.blue);
view->SetHighColor(red, green, blue);
view->StrokeRect(rect);
--rect.right;
--rect.bottom;
view->SetHighColor(fColor.red, fColor.green, fColor.blue);
view->FillRect(rect);
view->Sync();
bitmap->Unlock();
}
DragMessage(&message, bitmap, B_OP_ALPHA, BPoint(14.0f, 14.0f));
MouseUp(where);
}
}
