IRenderViewToTexture

Rendering view to texture storage interface.

Header:	#include <AUI/Render/IRenderViewToTexture.h>
CMake:	aui_link(my_target PUBLIC aui::views)

Public Types

InvalidArea

---

struct IRenderViewToTexture::InvalidArea

Defines areas to invalidate (redraw).

Field	Description
using Rectangles	Specific areas redraw.
using Underlying

Public Methods

begin

---

virtual bool IRenderViewToTexture::begin(IRenderer& renderer, glm::ivec2 surfaceSize, IRenderViewToTexture::InvalidArea& invalidArea)

Instructs the renderer to begin drawing to the surface (framebuffer) stored in IRenderViewToTexture.

Arguments

renderer

renderer to draw with. IRenderViewToTexture is expected to be associated with the renderer it's created with and normally this parameter is used to assert check the used renderer is the same.

surfaceSize

framebuffer size. Adjusts this value to achieve supersampling. Resizes the surface if mismatched with surfaceSize.

invalidArea

invalid areas to update. Should not be empty. Can be changed to InvalidArea::Full{} by implementation and caller is expected to react accordingly.

Returns

true on success, false otherwise

If needed, implementation may adjust renderer's transform matrix.

Examples

examples/app/minesweeper/src/NewGameWindow.h

Minesweeper Game - Minesweeper game implementation driven by ass.

    _<ALabel> mDifficultyLabel;

    void updateMinesMax();
    void updateDifficultyLabel();
    void begin();

};

examples/ui/contacts/src/main.cpp

AUI Contacts - Usage of AUI_DECLARATIVE_FOR to make a contacts-like application.

        mSelectedContact = nullptr;
    }

    _<AView> indexedList() {
        return AUI_DECLARATIVE_FOR(group, *mContacts | ranges::views::chunk_by([](const _<Contact>& lhs, const _<Contact>& rhs) {
                                return groupLetter(lhs->displayName) == groupLetter(rhs->displayName);
                            }), AVerticalLayout) {
            auto firstContact = *ranges::begin(group);
            auto firstLetter = groupLetter(firstContact->displayName);
            ALogger::info("Test") << "Computing view for group " << AString(1, firstLetter);

examples/7guis/cells/src/Cell.cpp

7GUIs Cells - Spreadsheet processor (Excel).

}

glm::uvec2 Cell::fromName(const AString& name) {
    glm::uvec2 out{UNDEFINED};
    auto it = name.begin();
    for (;it != name.end() && 'A' <= *it && *it <= 'Z'; ++it) {
        if (out.x == UNDEFINED) { out.x = 0; }
        out.x *= 26;
        out.x += *it - 'A';
    }

examples/7guis/cells/src/AST.cpp

7GUIs Cells - Spreadsheet processor (Excel).

                }
            }
            if (!binaryOperators.empty()) {
                auto root = std::min_element(
                    binaryOperators.begin(), binaryOperators.end(),
                    [](const BinaryOperatorAndItsPriority& lhs, const BinaryOperatorAndItsPriority& rhs) {
                        return lhs.priority < rhs.priority;
                    });
                auto out = std::make_unique<T>();
                AUI_ASSERT(root->owning != nullptr);

examples/7guis/circle_drawer/src/main.cpp

7GUIs Circle Drawer - Undo, redo, dialog control.

public:

    void undo() {
        if (nextAction == mStack.begin()) {
            return;
        }
        nextAction = std::prev(*nextAction);
        (**nextAction)->undo();
    }

draw

---

virtual void IRenderViewToTexture::draw(IRenderer& renderer)

Draws contents of the surface.

Arguments

renderer

renderer to draw with. IRenderViewToTexture is expected to be associated with the renderer it's created with and normally this parameter is used to assert check the used renderer is the same.

end

---

virtual void IRenderViewToTexture::end(IRenderer& renderer)

Finishes drawing operation started with begin method.

Arguments

renderer

renderer to draw with. IRenderViewToTexture is expected to be associated with the renderer it's created with and normally this parameter is used to assert check the used renderer is the same.

The caller is obligated to recover renderer's state prior to begin method call.

Examples

examples/7guis/cells/src/Cell.cpp

7GUIs Cells - Spreadsheet processor (Excel).

glm::uvec2 Cell::fromName(const AString& name) {
    glm::uvec2 out{UNDEFINED};
    auto it = name.begin();
    for (;it != name.end() && 'A' <= *it && *it <= 'Z'; ++it) {
        if (out.x == UNDEFINED) { out.x = 0; }
        out.x *= 26;
        out.x += *it - 'A';
    }
    for (;it != name.end() && '0' <= *it && *it <= '9'; ++it) {

examples/7guis/cells/src/AST.cpp

7GUIs Cells - Spreadsheet processor (Excel).

                }
            }
            if (!binaryOperators.empty()) {
                auto root = std::min_element(
                    binaryOperators.begin(), binaryOperators.end(),
                    [](const BinaryOperatorAndItsPriority& lhs, const BinaryOperatorAndItsPriority& rhs) {
                        return lhs.priority < rhs.priority;
                    });
                auto out = std::make_unique<T>();
                AUI_ASSERT(root->owning != nullptr);

examples/7guis/circle_drawer/src/main.cpp

7GUIs Circle Drawer - Undo, redo, dialog control.

        (**nextAction)->undo();
    }

    void redo() {
        if (nextAction == mStack.end()) {
            return;
        }
        (**nextAction)->redo();
        nextAction = std::next(*nextAction);
    }