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[nostalgia/core/studio] Add scrolling support to TileSheetEditor

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This commit is contained in:
Gary Talent
2022-02-04 22:51:17 -06:00
parent 9af7eb2fd7
commit 96e2510e64
8 changed files with 183 additions and 62 deletions
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src/nostalgia/core/studio/tilesheetpixelgrid.cpp
+6 -4
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@@ -18,13 +18,15 @@ ox::Error TileSheetGrid::buildShader() noexcept {
return glutils::buildShaderProgram(pixelLineVshad, pixelLineFshad, pixelLineGshad).moveTo(&m_shader);
}
void TileSheetGrid::draw(bool update) noexcept {
glLineWidth(3);
void TileSheetGrid::draw(bool update, const ImVec2 &scroll) noexcept {
glLineWidth(3 * m_pixelSizeMod * 0.5f);
glUseProgram(m_shader);
glBindVertexArray(m_bufferSet.vao);
if (update) {
glutils::sendVbo(m_bufferSet);
}
const auto uniformScroll = static_cast<GLint>(glGetUniformLocation(m_shader, "gScroll"));
glUniform2f(uniformScroll, scroll.x, scroll.y);
glDrawArrays(GL_POINTS, 0, m_bufferSet.vertices.size() / VertexVboRowLength);
}
@@ -96,8 +98,8 @@ void TileSheetGrid::setBufferObjects(const NostalgiaGraphic &img, glutils::Buffe
}
}
ImVec2 TileSheetGrid::pixelSize() const noexcept {
const auto [sw, sh] = ImGui::GetContentRegionAvail();
ImVec2 TileSheetGrid::pixelSize(const ImVec2 &paneSize) const noexcept {
const auto [sw, sh] = paneSize;
constexpr float ymod = 0.35f / 10.0f;
const auto xmod = ymod * sh / sw;
return {xmod * m_pixelSizeMod, ymod * m_pixelSizeMod};