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Add a transform test for DrawString with offsets

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* The text is not drawn at all when some transforms are used.
This commit is contained in:
Adrien Destugues 2014-05-23 14:53:50 +02:00
parent 59750213e7
commit b6c34f4c44
1 changed files with 70 additions and 5 deletions
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75
src/tests/servers/app/transformation/main.cpp
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@ -11,11 +11,12 @@
#include <Application.h>
#include <Bitmap.h>
#include <GradientLinear.h>
#include <Message.h>
#include <Picture.h>
#include <LayoutBuilder.h>
#include <List.h>
#include <Message.h>
#include <Picture.h>
#include <PopUpMenu.h>
#include <Region.h>
#include <Resources.h>
#include <Roster.h>
#include <ScrollView.h>
@ -25,7 +26,7 @@
#include <Window.h>
static const char* kAppSignature = "application/x.vnd-Haiku.Transformation";
static const char* kAppSignature = "application/x-vnd.Haiku-Transformation";
class Test {
@ -480,6 +481,68 @@ public:
};
// #pragma mark - Clipping
class TextClippingTest : public Test {
public:
TextClippingTest()
:
Test("Text clipping")
{
}
virtual void Draw(BView* view, BRect updateRect)
{
BFont font;
view->GetFont(&font);
font.SetSize(70);
view->SetFont(&font);
float width = view->Bounds().Width();
// The translation make the text, which has negative coordinates, be
// visible inside the viewport.
BAffineTransform transform;
transform.TranslateBy(width, 0);
view->SetTransform(transform);
const char* str = "CLIPPING";
// Test the standard DrawString method
// Draw the text bounds
float size = view->StringWidth(str);
BRect r(-width, 0, size - width, 70);
view->SetHighColor(ui_color(B_SUCCESS_COLOR));
view->FillRect(r);
// Draw the text (which should fit inside the bounds rectangle)
view->SetHighColor(0, 0, 0, 255);
view->DrawString(str, BPoint(-width, 70));
// Test with offset-based DrawString
BPoint offsets[strlen(str)];
for(unsigned int i = 0; i < strlen(str); i++)
{
offsets[i].x = i * 35 - width;
offsets[i].y = 145;
}
// Draw the text bounds
view->SetHighColor(ui_color(B_SUCCESS_COLOR));
r = BRect(offsets[0], offsets[strlen(str) - 1]);
r.top = 75;
view->FillRect(r);
// Draw the text (which should fit inside the bounds rectangle)
view->SetHighColor(0, 0, 0, 255);
view->DrawString(str, offsets, strlen(str));
}
};
// #pragma mark - BitmapTest
@ -510,7 +573,8 @@ public:
view->FillRect(rect);
// The rect offset should compensate the transform translation, so the
// bitmap should be drawn at the view origin.
// bitmap should be drawn at the view origin. It will then exactly
// cover the red rectangle, which should not be visible anymore.
rect.OffsetBy(0, 40);
BAffineTransform transform;
@ -582,12 +646,13 @@ main(int argc, char** argv)
window->AddTest(new RectsTest());
window->AddTest(new BitmapClipTest());
window->AddTest(new TextClippingTest());
window->AddTest(new BitmapTest());
window->AddTest(new GradientTest());
window->AddTest(new NestedStatesTest());
window->AddTest(new ClippingTest());
window->SetToTest(1);
window->SetToTest(2);
window->Show();
app.Run();