void JuiTabBook::OnRender( JPoint2I offset, const JRectI& rcPaint )
{
int nWidth;
int nLeaveCount;
JRectI tabRect;
tabRect.position = offset;
tabRect.extent.x = nWidth = GetWidth() / m_lsPages.GetCount();
tabRect.extent.y = m_pNormalImage->GetHeight();
nLeaveCount = GetWidth() % m_lsPages.GetCount();
JuiTabPage* pTab = (JuiTabPage*)m_lsPages.First();
while(pTab)
{
if(nLeaveCount > 0)
tabRect.extent.x = nWidth + 1;
else
tabRect.extent.x = nWidth;
JRectI clip = tabRect;
if(clip.Intersect(rcPaint))
RenderTab(clip, pTab);
nLeaveCount -= 1;
tabRect.position.x += tabRect.extent.x;
pTab = (JuiTabPage*)m_lsPages.Next();
}
}
/// Renders the inventory GUI to the provided screen.
/// @param[in,out] renderer - The renderer to use for rendering.
void InventoryGui::Render(GRAPHICS::Renderer& renderer) const
{
// RENDER A RECTANGLE FOR THE BACKGROUND.
// It is offset from the top of the screen by the amount of the
// top row of the HUD that is always displayed. Otherwise,
// it should cover the remainder of the screen.
const float TOP_SCREEN_OFFSET_IN_PIXELS = static_cast<float>(GRAPHICS::GUI::Glyph::HEIGHT_IN_PIXELS);
const float SCREEN_LEFT_POSITION_IN_PIXELS = 0.0f;
const float BACKGROUND_HEIGHT_IN_PIXELS = renderer.Screen.HeightInPixels<float>() - TOP_SCREEN_OFFSET_IN_PIXELS;
MATH::FloatRectangle background_rectangle = MATH::FloatRectangle::FromLeftTopAndDimensions(
SCREEN_LEFT_POSITION_IN_PIXELS,
TOP_SCREEN_OFFSET_IN_PIXELS,
renderer.Screen.WidthInPixels<float>(),
BACKGROUND_HEIGHT_IN_PIXELS);
// The background color is currently arbitrary.
GRAPHICS::Color background_color;
background_color.Red = GRAPHICS::Color::MAX_COLOR_COMPONENT;
background_color.Green = GRAPHICS::Color::MAX_COLOR_COMPONENT;
background_color.Blue = GRAPHICS::Color::MAX_COLOR_COMPONENT;
renderer.RenderScreenRectangle(
background_rectangle,
background_color);
// RENDER A TAB FOR THE BIBLE PORTION OF THE GUI.
// It should be positioned near the top-left of the GUI.
float bible_tab_left_screen_position_in_pixels = background_rectangle.GetLeftXPosition();
float bible_tab_top_screen_position_in_pixels = background_rectangle.GetTopYPosition();
MATH::Vector2f bible_tab_left_top_screen_position_in_pixels(
bible_tab_left_screen_position_in_pixels,
bible_tab_top_screen_position_in_pixels);
RenderTab(
"Bible",
bible_tab_left_top_screen_position_in_pixels,
InventoryBiblePage::BACKGROUND_COLOR,
renderer);
// RENDER A TAB FOR THE ANIMAL PORTION OF THE GUI.
const std::string ANIMALS_TAB_STRING = "Animals";
unsigned int animals_tab_text_width_in_pixels = GRAPHICS::GUI::Glyph::WIDTH_IN_PIXELS * ANIMALS_TAB_STRING.length();
unsigned int animals_tab_text_half_width_in_pixels = animals_tab_text_width_in_pixels / 2;
float animals_tab_left_screen_position_in_pixels = background_rectangle.GetCenterXPosition() - animals_tab_text_half_width_in_pixels;
float animals_tab_top_screen_position_in_pixels = background_rectangle.GetTopYPosition();
MATH::Vector2f animals_tab_left_top_screen_position_in_pixels(
animals_tab_left_screen_position_in_pixels,
animals_tab_top_screen_position_in_pixels);
RenderTab(
ANIMALS_TAB_STRING,
animals_tab_left_top_screen_position_in_pixels,
ANIMALS_TAB_COLOR,
renderer);
// RENDER A TAB FOR THE FOOD PORTION OF THE GUI.
const std::string FOOD_TAB_STRING = "Food";
unsigned int food_tab_text_width_in_pixels = GRAPHICS::GUI::Glyph::WIDTH_IN_PIXELS * FOOD_TAB_STRING.length();
float food_tab_left_screen_position_in_pixels = background_rectangle.GetRightXPosition() - food_tab_text_width_in_pixels;
float food_tab_top_screen_position_in_pixels = background_rectangle.GetTopYPosition();
MATH::Vector2f food_tab_left_top_screen_position_in_pixels(
food_tab_left_screen_position_in_pixels,
food_tab_top_screen_position_in_pixels);
RenderTab(
FOOD_TAB_STRING,
food_tab_left_top_screen_position_in_pixels,
FOOD_TAB_COLOR,
renderer);
// RENDER THE CURRENTLY DISPLAYED PAGE.
switch (CurrentTab)
{
case TabType::BIBLE:
BiblePage.Render(renderer);
break;
case TabType::ANIMALS:
RenderAnimalsPage(renderer);
break;
case TabType::FOOD:
RenderFoodPage(renderer);
break;
}
}
