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[feat] restrict the dragging range of the ControlWindow

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This commit is contained in:
dijunkun
2026-02-26 15:55:04 +08:00
parent 5e2ad99ec0
commit 4e6f82d00c
3 changed files with 123 additions and 88 deletions
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177
src/gui/windows/control_window.cpp
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@@ -42,50 +42,74 @@ int Render::ControlWindow(std::shared_ptr<SubStreamWindowProperties>& props) {
}
}
ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1, 1, 1, 1));
ImGui::PushStyleVar(ImGuiStyleVar_WindowMinSize, ImVec2(0, 0));
ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(0, 0, 0, 0));
ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 10.0f);
ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 10.0f);
ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0));
ImGui::SetNextWindowSize(
ImVec2(props->control_window_width_, props->control_window_height_),
ImGuiCond_Always);
float y_boundary = fullscreen_button_pressed_ ? 0.0f : title_bar_height_;
float container_x = 0.0f;
float container_y = y_boundary;
float container_w = stream_window_width_;
float container_h = stream_window_height_ - y_boundary;
ImGui::SetNextWindowPos(ImVec2(0, title_bar_height_), ImGuiCond_Once);
ImGui::SetNextWindowSize(ImVec2(container_w, container_h), ImGuiCond_Always);
ImGui::SetNextWindowPos(ImVec2(container_x, container_y), ImGuiCond_Always);
float pos_x = 0;
float pos_y = 0;
float y_boundary = fullscreen_button_pressed_ ? 0 : title_bar_height_;
if (props->reset_control_bar_pos_) {
float new_cursor_pos_x = 0;
float new_cursor_pos_y = 0;
std::string container_window_title =
props->remote_id_ + "ControlContainerWindow";
ImGui::Begin(container_window_title.c_str(), nullptr,
ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoDocking |
ImGuiWindowFlags_NoBackground);
ImGui::PopStyleVar();
ImVec2 container_pos = ImGui::GetWindowPos();
if (ImGui::IsMouseDown(ImGuiMouseButton_Left) &&
props->control_bar_hovered_) {
float current_x_rel = props->control_window_pos_.x - container_pos.x;
float current_y_rel = props->control_window_pos_.y - container_pos.y;
ImVec2 delta = ImGui::GetIO().MouseDelta;
pos_x = current_x_rel + delta.x;
pos_y = current_y_rel + delta.y;
if (pos_x < 0.0f) pos_x = 0.0f;
if (pos_y < 0.0f) pos_y = 0.0f;
if (pos_x + props->control_window_width_ > container_w)
pos_x = container_w - props->control_window_width_;
if (pos_y + props->control_window_height_ > container_h)
pos_y = container_h - props->control_window_height_;
} else if (props->reset_control_bar_pos_) {
float new_cursor_pos_x = 0.0f;
float new_cursor_pos_y = 0.0f;
// set control window pos
if (props->control_window_pos_.y + props->control_window_height_ >
stream_window_height_) {
pos_y = stream_window_height_ - props->control_window_height_;
} else if (props->control_window_pos_.y < y_boundary) {
pos_y = y_boundary;
float current_y_rel = props->control_window_pos_.y - container_pos.y;
if (current_y_rel + props->control_window_height_ > container_h) {
pos_y = container_h - props->control_window_height_;
} else if (current_y_rel < 0.0f) {
pos_y = 0.0f;
} else {
pos_y = props->control_window_pos_.y;
pos_y = current_y_rel;
}
if (props->is_control_bar_in_left_) {
pos_x = 0;
pos_x = 0.0f;
} else {
pos_x = stream_window_width_ - props->control_window_width_;
pos_x = container_w - props->control_window_width_;
}
ImGui::SetNextWindowPos(ImVec2(pos_x, pos_y), ImGuiCond_Always);
if (0 != props->mouse_diff_control_bar_pos_x_ &&
0 != props->mouse_diff_control_bar_pos_y_) {
// set cursor pos
new_cursor_pos_x = pos_x + props->mouse_diff_control_bar_pos_x_;
new_cursor_pos_y = pos_y + props->mouse_diff_control_bar_pos_y_;
new_cursor_pos_x =
container_pos.x + pos_x + props->mouse_diff_control_bar_pos_x_;
new_cursor_pos_y =
container_pos.y + pos_y + props->mouse_diff_control_bar_pos_y_;
SDL_WarpMouseInWindow(stream_window_, (int)new_cursor_pos_x,
(int)new_cursor_pos_y);
@@ -94,12 +118,14 @@ int Render::ControlWindow(std::shared_ptr<SubStreamWindowProperties>& props) {
} else if (!props->reset_control_bar_pos_ &&
ImGui::IsMouseReleased(ImGuiMouseButton_Left) ||
props->control_window_width_is_changing_) {
if (props->control_window_pos_.x <= stream_window_width_ * 0.5f) {
if (props->control_window_pos_.y + props->control_window_height_ >
stream_window_height_) {
pos_y = stream_window_height_ - props->control_window_height_;
float current_x_rel = props->control_window_pos_.x - container_pos.x;
float current_y_rel = props->control_window_pos_.y - container_pos.y;
if (current_x_rel <= container_w * 0.5f) {
pos_x = 0.0f;
if (current_y_rel + props->control_window_height_ > container_h) {
pos_y = container_h - props->control_window_height_;
} else {
pos_y = props->control_window_pos_.y;
pos_y = current_y_rel;
}
if (props->control_bar_expand_) {
@@ -118,47 +144,53 @@ int Render::ControlWindow(std::shared_ptr<SubStreamWindowProperties>& props) {
}
}
props->is_control_bar_in_left_ = true;
} else if (props->control_window_pos_.x > stream_window_width_ * 0.5f) {
pos_x = 0;
pos_y =
(props->control_window_pos_.y >= y_boundary &&
props->control_window_pos_.y <=
stream_window_height_ - props->control_window_height_)
? props->control_window_pos_.y
: (props->control_window_pos_.y <
(fullscreen_button_pressed_ ? 0 : title_bar_height_)
? (fullscreen_button_pressed_ ? 0 : title_bar_height_)
: (stream_window_height_ - props->control_window_height_));
} else if (current_x_rel > container_w * 0.5f) {
pos_x = container_w - props->control_window_width_;
pos_y = (current_y_rel >= 0.0f &&
current_y_rel <= container_h - props->control_window_height_)
? current_y_rel
: (current_y_rel < 0.0f
? 0.0f
: (container_h - props->control_window_height_));
if (props->control_bar_expand_) {
if (props->control_window_width_ >= props->control_window_max_width_) {
props->control_window_width_ = props->control_window_max_width_;
props->control_window_width_is_changing_ = false;
pos_x = stream_window_width_ - props->control_window_max_width_;
pos_x = container_w - props->control_window_max_width_;
} else {
props->control_window_width_is_changing_ = true;
pos_x = stream_window_width_ - props->control_window_width_;
pos_x = container_w - props->control_window_width_;
}
} else {
if (props->control_window_width_ <= props->control_window_min_width_) {
props->control_window_width_ = props->control_window_min_width_;
props->control_window_width_is_changing_ = false;
pos_x = stream_window_width_ - props->control_window_min_width_;
pos_x = container_w - props->control_window_min_width_;
} else {
props->control_window_width_is_changing_ = true;
pos_x = stream_window_width_ - props->control_window_width_;
pos_x = container_w - props->control_window_width_;
}
}
props->is_control_bar_in_left_ = false;
}
if (props->control_window_pos_.y + props->control_window_height_ >
stream_window_height_) {
pos_y = stream_window_height_ - props->control_window_height_;
} else if (props->control_window_pos_.y < y_boundary) {
pos_y = y_boundary;
if (current_y_rel + props->control_window_height_ > container_h) {
pos_y = container_h - props->control_window_height_;
} else if (current_y_rel < 0.0f) {
pos_y = 0.0f;
}
ImGui::SetNextWindowPos(ImVec2(pos_x, pos_y), ImGuiCond_Always);
} else {
float current_x_rel = props->control_window_pos_.x - container_pos.x;
float current_y_rel = props->control_window_pos_.y - container_pos.y;
pos_x = current_x_rel;
pos_y = current_y_rel;
if (pos_x < 0.0f) pos_x = 0.0f;
if (pos_y < 0.0f) pos_y = 0.0f;
if (pos_x + props->control_window_width_ > container_w)
pos_x = container_w - props->control_window_width_;
if (pos_y + props->control_window_height_ > container_h)
pos_y = container_h - props->control_window_height_;
}
if (props->control_bar_expand_ && props->control_window_height_is_changing_) {
@@ -180,10 +212,20 @@ int Render::ControlWindow(std::shared_ptr<SubStreamWindowProperties>& props) {
}
std::string control_window_title = props->remote_id_ + "ControlWindow";
ImGui::Begin(control_window_title.c_str(), nullptr,
ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoDocking);
ImGui::PopStyleVar();
ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
static bool a, b, c, d, e;
float child_cursor_x = pos_x;
float child_cursor_y = pos_y;
ImGui::SetCursorPos(ImVec2(child_cursor_x, child_cursor_y));
std::string control_child_window_title =
props->remote_id_ + "ControlChildWindow";
ImGui::BeginChild(
control_child_window_title.c_str(),
ImVec2(props->control_window_width_, props->control_window_height_),
ImGuiChildFlags_Border, ImGuiWindowFlags_NoDecoration);
ImGui::PopStyleColor();
props->control_window_pos_ = ImGui::GetWindowPos();
SDL_GetMouseState(&props->mouse_pos_x_, &props->mouse_pos_y_);
@@ -192,31 +234,26 @@ int Render::ControlWindow(std::shared_ptr<SubStreamWindowProperties>& props) {
props->mouse_diff_control_bar_pos_y_ =
props->mouse_pos_y_ - props->control_window_pos_.y;
ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
static bool a, b, c, d, e;
ImGui::SetNextWindowPos(
ImVec2(props->is_control_bar_in_left_
? props->control_window_pos_.x - props->control_window_width_
: props->control_window_pos_.x,
props->control_window_pos_.y),
ImGuiCond_Always);
std::string control_child_window_title =
props->remote_id_ + "ControlChildWindow";
ImGui::BeginChild(control_child_window_title.c_str(),
ImVec2(props->control_window_width_ * 2.0f,
props->control_window_height_),
ImGuiChildFlags_Border, ImGuiWindowFlags_NoDecoration);
ImGui::PopStyleColor();
if (props->control_window_pos_.y < container_pos.y ||
props->control_window_pos_.y + props->control_window_height_ >
(container_pos.y + container_h) ||
props->control_window_pos_.x < container_pos.x ||
props->control_window_pos_.x + props->control_window_width_ >
(container_pos.x + container_w)) {
ImGui::ClearActiveID();
props->reset_control_bar_pos_ = true;
props->mouse_diff_control_bar_pos_x_ = 0;
props->mouse_diff_control_bar_pos_y_ = 0;
}
ControlBar(props);
props->control_bar_hovered_ = ImGui::IsWindowHovered();
ImGui::EndChild();
ImGui::End();
ImGui::PopStyleVar(4);
ImGui::PopStyleVar(3);
ImGui::PopStyleColor();
return 0;
}
} // namespace crossdesk
} // namespace crossdesk