Playground is now a little drawing app. Fully functional under Haiku, but with some strange defects in arc calculation within AGG.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12702 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stephan Aßmus
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// main.cpp
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#include <stdio.h>
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#include <stdlib.h>
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#include <Application.h>
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#include <Box.h>
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#include <Button.h>
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#include <CheckBox.h>
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#include <Menu.h>
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#include <MenuBar.h>
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#include <MenuItem.h>
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#include <String.h>
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#include <RadioButton.h>
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#include <TextControl.h>
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#include <TextView.h>
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#include "ObjectView.h"
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#include "States.h"
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#include "ObjectWindow.h"
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enum {
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MSG_SET_OBJECT_TYPE = 'stot',
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MSG_SET_FILL_OR_STROKE = 'stfs',
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MSG_SET_COLOR = 'stcl',
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MSG_SET_PEN_SIZE = 'stps',
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MSG_NEW_OBJECT = 'nobj',
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MSG_UNDO = 'undo',
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MSG_REDO = 'redo',
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MSG_CLEAR = 'clir',
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};
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// constructor
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ObjectWindow::ObjectWindow(BRect frame, const char* name)
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: BWindow(frame, name, B_TITLED_WINDOW, B_ASYNCHRONOUS_CONTROLS)
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{
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BRect b(Bounds());
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b.bottom = b.top + 8;
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BMenuBar* menuBar = new BMenuBar(b, "menu bar");
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AddChild(menuBar);
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BMenu* menu = new BMenu("Menus");
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menuBar->AddItem(menu);
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BMenuItem* menuItem = new BMenuItem("Quit", NULL, 'Q');
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menu->AddItem(menuItem);
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menuBar->AddItem(new BMenu("don't"));
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menuBar->AddItem(new BMenu("work!"));
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menuBar->AddItem(new BMenu("(yet)"));
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b = Bounds();
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b.top = menuBar->Bounds().bottom + 1;
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BBox* bg = new BBox(b, "bg box", B_FOLLOW_ALL, B_WILL_DRAW, B_PLAIN_BORDER);
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AddChild(bg);
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bg->SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
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b = bg->Bounds();
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// object views occupies the right side of the window
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b.Set(ceilf((b.left + b.right) / 3.0) + 3.0, b.top + 5.0, b.right - 5.0, b.bottom - 5.0);
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fObjectView = new ObjectView(b, "object view", B_FOLLOW_ALL,
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B_WILL_DRAW | B_FULL_UPDATE_ON_RESIZE);
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bg->AddChild(fObjectView);
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b = bg->Bounds();
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// controls occupy the left side of the window
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b.Set(b.left + 5.0, b.top + 5.0, ceilf((b.left + b.right) / 3.0) - 2.0, b.bottom - 5.0);
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BBox* controlGroup = new BBox(b, "controls box", B_FOLLOW_LEFT | B_FOLLOW_TOP_BOTTOM,
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B_WILL_DRAW, B_FANCY_BORDER);
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controlGroup->SetLabel("Controls");
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bg->AddChild(controlGroup);
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b = controlGroup->Bounds();
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b.top += 10.0;
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b.bottom = b.top + 25.0;
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b.InsetBy(5.0, 5.0);
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// new button
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fNewB = new BButton(b, "new button", "New Object", new BMessage(MSG_NEW_OBJECT));
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controlGroup->AddChild(fNewB);
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// clear button
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b.OffsetBy(0, fNewB->Bounds().Height() + 5.0);
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fClearB = new BButton(b, "clear button", "Clear", new BMessage(MSG_CLEAR));
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controlGroup->AddChild(fClearB);
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// object type radio buttons
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BMessage* message;
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BRadioButton* radioButton;
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b.OffsetBy(0, fClearB->Bounds().Height() + 5.0);
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message = new BMessage(MSG_SET_OBJECT_TYPE);
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message->AddInt32("type", OBJECT_LINE);
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radioButton = new BRadioButton(b, "radio 1", "Line", message);
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controlGroup->AddChild(radioButton);
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radioButton->SetValue(B_CONTROL_ON);
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b.OffsetBy(0, radioButton->Bounds().Height() + 5.0);
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message = new BMessage(MSG_SET_OBJECT_TYPE);
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message->AddInt32("type", OBJECT_RECT);
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radioButton = new BRadioButton(b, "radio 2", "Rect", message);
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controlGroup->AddChild(radioButton);
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b.OffsetBy(0, radioButton->Bounds().Height() + 5.0);
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message = new BMessage(MSG_SET_OBJECT_TYPE);
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message->AddInt32("type", OBJECT_ROUND_RECT);
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radioButton = new BRadioButton(b, "radio 3", "Round Rect", message);
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controlGroup->AddChild(radioButton);
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b.OffsetBy(0, radioButton->Bounds().Height() + 5.0);
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message = new BMessage(MSG_SET_OBJECT_TYPE);
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message->AddInt32("type", OBJECT_ELLIPSE);
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radioButton = new BRadioButton(b, "radio 4", "Ellipse", message);
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controlGroup->AddChild(radioButton);
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// red text control
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b.OffsetBy(0, radioButton->Bounds().Height() + 5.0);
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fRedTC = new BTextControl(b, "red text control", "Red", "",
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new BMessage(MSG_SET_COLOR));
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controlGroup->AddChild(fRedTC);
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// green text control
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b.OffsetBy(0, fRedTC->Bounds().Height() + 5.0);
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fGreenTC = new BTextControl(b, "green text control", "Green", "",
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new BMessage(MSG_SET_COLOR));
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controlGroup->AddChild(fGreenTC);
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// blue text control
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b.OffsetBy(0, fGreenTC->Bounds().Height() + 5.0);
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fBlueTC = new BTextControl(b, "blue text control", "Blue", "",
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new BMessage(MSG_SET_COLOR));
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controlGroup->AddChild(fBlueTC);
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// alpha text control
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b.OffsetBy(0, fBlueTC->Bounds().Height() + 5.0);
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fAlphaTC = new BTextControl(b, "alpha text control", "Alpha", "",
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new BMessage(MSG_SET_COLOR));
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controlGroup->AddChild(fAlphaTC);
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/*
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// TODO: while this block of code works in the Haiku app_server running under R5,
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// it crashes pretty badly under Haiku. I have no idea why this happens, because
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// I was doing the same thing before at other places.
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// divide text controls the same
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float rWidth = fRedTC->StringWidth(fRedTC->Label());
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float gWidth = fGreenTC->StringWidth(fGreenTC->Label());
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float bWidth = fBlueTC->StringWidth(fBlueTC->Label());
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float aWidth = fAlphaTC->StringWidth(fAlphaTC->Label());
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float width = max_c(rWidth, max_c(gWidth, max_c(bWidth, aWidth))) + 10.0;
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fRedTC->SetDivider(width);
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fGreenTC->SetDivider(width);
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fBlueTC->SetDivider(width);
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fAlphaTC->SetDivider(width);*/
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// fill check box
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b.OffsetBy(0, fAlphaTC->Bounds().Height() + 5.0);
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fFillCB = new BCheckBox(b, "fill check box", "Fill",
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new BMessage(MSG_SET_FILL_OR_STROKE));
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controlGroup->AddChild(fFillCB);
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// pen size text control
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b.OffsetBy(0, radioButton->Bounds().Height() + 5.0);
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fPenSizeTC = new BTextControl(b, "width text control", "Width", "",
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new BMessage(MSG_SET_PEN_SIZE));
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controlGroup->AddChild(fPenSizeTC);
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_UpdateControls();
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}
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// destructor
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ObjectWindow::~ObjectWindow()
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{
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}
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// QuitRequested
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bool
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ObjectWindow::QuitRequested()
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{
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be_app->PostMessage(B_QUIT_REQUESTED);
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return true;
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}
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// MessageReceived
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void
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ObjectWindow::MessageReceived(BMessage* message)
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{
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switch (message->what) {
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case MSG_SET_OBJECT_TYPE: {
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int32 type;
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if (message->FindInt32("type", &type) >= B_OK) {
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fObjectView->SetObjectType(type);
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fFillCB->SetEnabled(type != OBJECT_LINE);
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}
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break;
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}
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case MSG_SET_FILL_OR_STROKE: {
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int32 value;
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if (message->FindInt32("be:value", &value) >= B_OK) {
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fObjectView->SetStateFill(value);
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fPenSizeTC->SetEnabled(value == B_CONTROL_OFF);
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}
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break;
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}
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case MSG_SET_COLOR:
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fObjectView->SetStateColor(_GetColor());
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break;
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case MSG_OBJECT_COUNT_CHANGED:
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fClearB->SetEnabled(fObjectView->CountObjects() > 0);
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break;
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case MSG_NEW_OBJECT:
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fObjectView->SetState(NULL);
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break;
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case MSG_CLEAR:
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fObjectView->MakeEmpty();
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break;
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case MSG_SET_PEN_SIZE:
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fObjectView->SetStatePenSize(atof(fPenSizeTC->Text()));
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break;
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default:
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BWindow::MessageReceived(message);
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}
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}
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// _UpdateControls
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void
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ObjectWindow::_UpdateControls() const
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{
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// update color
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rgb_color c = fObjectView->StateColor();
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char string[32];
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sprintf(string, "%d", c.red);
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fRedTC->SetText(string);
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sprintf(string, "%d", c.green);
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fGreenTC->SetText(string);
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sprintf(string, "%d", c.blue);
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fBlueTC->SetText(string);
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sprintf(string, "%d", c.alpha);
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fAlphaTC->SetText(string);
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// update buttons
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fClearB->SetEnabled(fObjectView->CountObjects() > 0);
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fFillCB->SetEnabled(fObjectView->ObjectType() != OBJECT_LINE);
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// disable penSize if fill is on
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sprintf(string, "%.1f", fObjectView->StatePenSize());
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fPenSizeTC->SetText(string);
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fPenSizeTC->SetEnabled(!fFillCB->IsEnabled());
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}
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// _GetColor
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rgb_color
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ObjectWindow::_GetColor() const
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{
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rgb_color c;
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c.red = max_c(0, min_c(255, atoi(fRedTC->Text())));
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c.green = max_c(0, min_c(255, atoi(fGreenTC->Text())));
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c.blue = max_c(0, min_c(255, atoi(fBlueTC->Text())));
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c.alpha = max_c(0, min_c(255, atoi(fAlphaTC->Text())));
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return c;
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}
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